Smdn.TPSmartHomeDevices 1.0.0-rc1 Release Notes

releasenote-Smdn.TPSmartHomeDevices-1.0.0-rc1.md

main/Smdn.TPSmartHomeDevices-1.0.0-rc1

releasenote.section1.changelog.md

• 2023-04-29 update package version
• 2023-04-29 improve metapackage configurations
• 2023-04-28 split assembly Smdn.TPSmartHomeDevices into the assemblies -.Primitives, -.Tapo, -.Kasa, -.MacAddressEndPoint
• 2023-04-27 rename to (Tapo|Kasa)DeviceExceptionHandler and move them to their root namespace
• 2023-04-27 add TimeSpanJsonConverter abstract base class
• 2023-04-27 add 'notnull' constraints to the type parameter that defines type of pass through request
• 2023-04-27 fix link in credit
• 2023-04-27 add SPDX license headers
• 2023-04-27 add XML comment docs
• 2023-04-26 move declaration to appropriate position
• 2023-04-26 parse ID-like properties as byte[] instead of string
• 2023-04-26 fix type parameter name
• 2023-04-25 merge TapoCredentialUtils and TapoCredentialProviderFactory into TapoCredentials
• 2023-04-25 add credit and third party notices
• 2023-04-25 add TapoDevice.Create<TAddress>()
• 2023-04-25 add KasaDevice.Create<TAddress>()
• 2023-04-24 throw ArgumentNullException to keep parameter name
• 2023-04-24 expose DeviceEndPoint and merge the implementation of KasaDeviceEndPoint and TapoDeviceEndPoint
• 2023-04-24 lose the semantics of port numbers from IDeviceEndPoint
• 2023-04-24 expose IDeviceEndPointExtensions.ResolveOrThrowAsync
• 2023-04-24 expose StaticDeviceEndPoint
• 2023-04-24 change endpoint info to output as logger scope instead of category name
• 2023-04-24 reduce overloads of DeviceEndPoint.Create
• 2023-04-24 add Create<TAddress> to support creating devices from any address type
• 2023-04-24 add notnull constraints
• 2023-04-22 enable and fix CA2007
• 2023-04-22 clean up NoWarn values
• 2023-04-22 fix warning CS1573
• 2023-04-22 disable warning CA1848
• 2023-04-22 improve comment
• 2023-04-22 fix warning CA2254
• 2023-04-22 seal the externally invisible types
• 2023-04-22 disable unnecessary using directives
• 2023-04-22 fix nullability warnings
• 2023-04-22 throw InvalidOperationException if the pass through response was decrypted as 'null' JSON object
• 2023-04-22 throw TapoProtocolException if the HTTP response was parsed as 'null' JSON object
• 2023-04-22 expose TapoClient.DefaultHttpClientFactory
• 2023-04-22 propagate CancellationToken
• 2023-04-22 bump Smdn.MSBuild.DefineConstants.NETSdkApi up to 1.3.12
• 2023-04-22 suppress warning SA1114 for switching use of utf-8 string literals
• 2023-04-22 delete unnecessary codes
• 2023-04-22 propagate CancellationToken
• 2023-04-22 improved annotations of fields that may represent disposed states
• 2023-04-22 suppress warning SA1313 and CA1822 for private type
• 2023-04-22 suppress warning CA5350
• 2023-04-22 suppress warning SA1305
• 2023-04-22 bump Smdn.MSBuild.ProjectAssets.Library up to 1.5.0
• 2023-04-22 improve handling of error code -1501
• 2023-04-22 add overload of TapoDevice.GetDeviceInfoAsync() which returns TapoDeviceInfo
• 2023-04-22 expose JsonConverter types
• 2023-04-22 validate token type before getting value
• 2023-04-21 bump Smdn.Net.AddressResolution up to 1.0.0
• 2023-04-21 add TapoDevice.GetOnOffStateAsync
• 2023-04-21 make GetDeviceInfoResponse.Result generic type to make it extensible and reduce dependency to TapoDeviceInfo
• 2023-04-21 rename IDynamicDeviceEndPoint.Invalidate() from InvalidateEndPoint()
• 2023-04-21 rename IDeviceEndPoint.ResolveAsync() from GetEndPointAsync()
• 2023-04-21 rename files
• 2023-04-21 rename IDeviceEndPoint from IDeviceEndPointProvider
• 2023-04-21 reduce usage of record struct
• 2023-04-21 clarify interface method specifications
• 2023-04-21 improve message of TapoErrorResponseException
• 2023-04-21 remove ErrorCode enum types
• 2023-04-16 add log point
• 2023-04-16 lower the log level
• 2023-04-16 use Microsoft.Extensions.DependencyInjection.Abstractions instead of Microsoft.Extensions.DependencyInjection
• 2023-04-15 bump Smdn.Net.AddressResolution up to 1.0.0-rc2
• 2023-04-15 bump Smdn.MSBuild.DefineConstants.NETSdkApi up to 1.3.11
• 2023-04-15 methodize the receive operations
• 2023-04-15 attempt receiving rest of body with a timeout period when a part of the expected body is received
• 2023-04-15 increase the receive block size
• 2023-04-15 add log point
• 2023-04-15 implement auto connection refresh

releasenote.section2.api-changes.diff

diff --git a/doc/api-list/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices-net6.0.apilist.cs b/doc/api-list/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices-net6.0.apilist.cs
deleted file mode 100644
index 57cc447..0000000
--- a/doc/api-list/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices-net6.0.apilist.cs
+++ /dev/null
@@ -1,807 +0,0 @@
-// Smdn.TPSmartHomeDevices.dll (Smdn.TPSmartHomeDevices-1.0.0-preview3)
-//   Name: Smdn.TPSmartHomeDevices
-//   AssemblyVersion: 1.0.0.0
-//   InformationalVersion: 1.0.0-preview3+ae327055c2651d84fffc372b481a72257af2a9d8
-//   TargetFramework: .NETCoreApp,Version=v6.0
-//   Configuration: Release
-//   Referenced assemblies:
-//     Microsoft.Extensions.DependencyInjection.Abstractions, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
-//     Microsoft.Extensions.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
-//     Microsoft.Extensions.Logging.Abstractions, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
-//     Microsoft.Win32.Primitives, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     Smdn.Fundamental.PrintableEncoding.Hexadecimal, Version=3.0.1.0, Culture=neutral
-//     Smdn.Net.AddressResolution, Version=1.0.0.0, Culture=neutral
-//     System.Collections, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.ComponentModel, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Linq, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Memory, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-//     System.Net.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Net.Http.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-//     System.Net.NetworkInformation, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Net.Primitives, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Net.Sockets, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Runtime, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Security.Cryptography.Algorithms, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Security.Cryptography.Encoding, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Security.Cryptography.Primitives, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Text.Encodings.Web, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-//     System.Text.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-#nullable enable annotations
-
-using System;
-using System.Buffers;
-using System.Collections.Generic;
-using System.Diagnostics.CodeAnalysis;
-using System.Net;
-using System.Net.Http;
-using System.Net.NetworkInformation;
-using System.Security.Cryptography;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
-using Smdn.Net.AddressResolution;
-using Smdn.TPSmartHomeDevices;
-using Smdn.TPSmartHomeDevices.Kasa;
-using Smdn.TPSmartHomeDevices.Kasa.Protocol;
-using Smdn.TPSmartHomeDevices.Tapo;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-using Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-namespace Smdn.TPSmartHomeDevices {
-  public interface IDeviceEndPointFactory<TAddress> {
-    IDeviceEndPointProvider Create(TAddress address, int port = 0);
-  }
-
-  public interface IDeviceEndPointProvider {
-    ValueTask<EndPoint?> GetEndPointAsync(CancellationToken cancellationToken = default);
-  }
-
-  public interface IDynamicDeviceEndPointProvider : IDeviceEndPointProvider {
-    void InvalidateEndPoint();
-  }
-
-  public static class DeviceEndPointFactoryServiceCollectionExtensions {
-    public static IServiceCollection AddDeviceEndPointFactory<TAddress>(this IServiceCollection services, IDeviceEndPointFactory<TAddress> endPointFactory) {}
-  }
-
-  public class DeviceEndPointResolutionException : Exception {
-    public DeviceEndPointResolutionException(IDeviceEndPointProvider deviceEndPointProvider) {}
-    public DeviceEndPointResolutionException(IDeviceEndPointProvider deviceEndPointProvider, string message, Exception? innerException) {}
-
-    public IDeviceEndPointProvider EndPointProvider { get; }
-  }
-
-  public class MacAddressDeviceEndPointFactory :
-    IDeviceEndPointFactory<PhysicalAddress>,
-    IDisposable
-  {
-    protected class MacAddressDeviceEndPointProvider : IDynamicDeviceEndPointProvider {
-      public MacAddressDeviceEndPointProvider(IAddressResolver<PhysicalAddress, IPAddress> resolver, PhysicalAddress address, int port) {}
-
-      public async ValueTask<EndPoint?> GetEndPointAsync(CancellationToken cancellationToken) {}
-      public void InvalidateEndPoint() {}
-      public override string ToString() {}
-    }
-
-    protected MacAddressDeviceEndPointFactory(IAddressResolver<PhysicalAddress, IPAddress> resolver, IServiceProvider? serviceProvider = null) {}
-    public MacAddressDeviceEndPointFactory(MacAddressResolver resolver, IServiceProvider? serviceProvider = null) {}
-    public MacAddressDeviceEndPointFactory(MacAddressResolverOptions? options = null, IServiceProvider? serviceProvider = null) {}
-
-    public virtual IDeviceEndPointProvider Create(PhysicalAddress address, int port = 0) {}
-    protected virtual void Dispose(bool disposing) {}
-    public void Dispose() {}
-    protected void ThrowIfDisposed() {}
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Kasa {
-  public class HS105 : KasaDevice {
-    public HS105(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    public HS105(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    public HS105(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public HS105(string host, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask<bool> GetOnOffStateAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask SetOnOffStateAsync(bool newOnOffState, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOffAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOnAsync(CancellationToken cancellationToken = default) {}
-  }
-
-  public class KL130 : KasaDevice {
-    public KL130(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    public KL130(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    public KL130(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public KL130(string host, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask<KL130LightState> GetLightStateAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask<bool> GetOnOffStateAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorAsync(int hue, int saturation, int? brightness = null, TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorTemperatureAsync(int colorTemperature, int? brightness = null, TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetOnOffStateAsync(bool newOnOffState, TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOffAsync(TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOnAsync(TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-  }
-
-  public class KasaDevice : IDisposable {
-    protected readonly struct NullParameter {
-    }
-
-    protected static readonly JsonEncodedText MethodTextGetSysInfo; // = "get_sysinfo"
-    protected static readonly JsonEncodedText ModuleTextSystem; // = "system"
-
-    public static KasaDevice Create(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    public static KasaDevice Create(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    public static KasaDevice Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static KasaDevice Create(string host, IServiceProvider? serviceProvider = null) {}
-
-    protected KasaDevice(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    protected KasaDevice(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    protected KasaDevice(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    protected KasaDevice(string host, IServiceProvider? serviceProvider = null) {}
-
-    public bool IsConnected { get; }
-    protected bool IsDisposed { get; }
-
-    protected virtual void Dispose(bool disposing) {}
-    public void Dispose() {}
-    public ValueTask<EndPoint> ResolveEndPointAsync(CancellationToken cancellationToken = default) {}
-    protected ValueTask SendRequestAsync<TMethodParameter>(JsonEncodedText module, JsonEncodedText method, TMethodParameter parameters, CancellationToken cancellationToken) {}
-    protected ValueTask<TMethodResult> SendRequestAsync<TMethodParameter, TMethodResult>(JsonEncodedText module, JsonEncodedText method, TMethodParameter parameters, Func<JsonElement, TMethodResult> composeResult, CancellationToken cancellationToken) {}
-    protected ValueTask<TMethodResult> SendRequestAsync<TMethodResult>(JsonEncodedText module, JsonEncodedText method, Func<JsonElement, TMethodResult> composeResult, CancellationToken cancellationToken) {}
-  }
-
-  public static class KasaDeviceEndPointProvider {
-    public static IDeviceEndPointProvider Create(IPAddress ipAddress) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IDeviceEndPointFactory<PhysicalAddress> endPointFactory) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static IDeviceEndPointProvider Create(string host) {}
-  }
-
-  public class KasaDisconnectedException : KasaProtocolException {
-    public KasaDisconnectedException(string message, EndPoint deviceEndPoint, Exception? innerException) {}
-  }
-
-  public class KasaErrorResponseException : KasaUnexpectedResponseException {
-    public KasaErrorResponseException(EndPoint deviceEndPoint, string requestModule, string requestMethod, ErrorCode errorCode) {}
-
-    public ErrorCode ErrorCode { get; }
-  }
-
-  public class KasaIncompleteResponseException : KasaUnexpectedResponseException {
-    public KasaIncompleteResponseException(string message, EndPoint deviceEndPoint, string requestModule, string requestMethod, Exception? innerException) {}
-  }
-
-  public abstract class KasaProtocolException : InvalidOperationException {
-    protected KasaProtocolException(string message, EndPoint deviceEndPoint, Exception? innerException) {}
-
-    public EndPoint DeviceEndPoint { get; }
-  }
-
-  public class KasaUnexpectedResponseException : KasaProtocolException {
-    public KasaUnexpectedResponseException(string message, EndPoint deviceEndPoint, string requestModule, string requestMethod, Exception? innerException) {}
-
-    public string RequestMethod { get; }
-    public string RequestModule { get; }
-  }
-
-  public readonly struct KL130LightState {
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("brightness")]
-    public int? Brightness { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("color_temp")]
-    public int? ColorTemperature { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("hue")]
-    public int? Hue { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-    [JsonConverter(typeof(KasaNumericalBooleanJsonConverter))]
-    [JsonPropertyName("on_off")]
-    public bool IsOn { get; init; }
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("mode")]
-    public string? Mode { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("saturation")]
-    public int? Saturation { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol {
-  public enum ErrorCode : int {
-    Success = 0,
-  }
-
-  public sealed class KasaClient : IDisposable {
-    public const int DefaultPort = 9999;
-
-    public KasaClient(EndPoint endPoint, ILogger? logger = null) {}
-
-    public EndPoint EndPoint { get; }
-    public bool IsConnected { get; }
-
-    public void Dispose() {}
-    public ValueTask<TMethodResult> SendAsync<TMethodParameter, TMethodResult>(JsonEncodedText module, JsonEncodedText method, TMethodParameter parameter, Func<JsonElement, TMethodResult> composeResult, CancellationToken cancellationToken = default) {}
-  }
-
-  public abstract class KasaClientExceptionHandler {
-    internal protected static readonly KasaClientExceptionHandler Default; // = "Smdn.TPSmartHomeDevices.Kasa.Protocol.KasaClientDefaultExceptionHandler"
-
-    protected KasaClientExceptionHandler() {}
-
-    public abstract KasaClientExceptionHandling DetermineHandling(KasaDevice device, Exception exception, int attempt, ILogger? logger);
-  }
-
-  public static class KasaJsonSerializer {
-    public const byte InitialKey = 171;
-
-    public static void DecryptInPlace(Span<byte> body) {}
-    public static JsonElement Deserialize(ArrayBufferWriter<byte> buffer, JsonEncodedText module, JsonEncodedText method, ILogger? logger = null) {}
-    public static void EncryptInPlace(Span<byte> body) {}
-    public static void Serialize<TMethodParameter>(ArrayBufferWriter<byte> buffer, JsonEncodedText module, JsonEncodedText method, TMethodParameter parameter, ILogger? logger = null) {}
-  }
-
-  public class KasaMessageBodyTooShortException : KasaMessageException {
-    public KasaMessageBodyTooShortException(int indicatedLength, int actualLength) {}
-
-    public int ActualLength { get; }
-    public int IndicatedLength { get; }
-  }
-
-  public class KasaMessageException : SystemException {
-    public KasaMessageException(string message) {}
-  }
-
-  public class KasaMessageHeaderTooShortException : KasaMessageException {
-    public KasaMessageHeaderTooShortException(string message) {}
-  }
-
-  public readonly struct KasaClientExceptionHandling {
-    public static readonly KasaClientExceptionHandling InvalidateEndPointAndRetry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=True}"
-    public static readonly KasaClientExceptionHandling InvalidateEndPointAndThrow; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=True}"
-    public static readonly KasaClientExceptionHandling Retry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=False}"
-    public static readonly KasaClientExceptionHandling RetryAfterReconnect; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=True, ShouldInvalidateEndPoint=False}"
-    public static readonly KasaClientExceptionHandling Throw; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=False}"
-
-    public static KasaClientExceptionHandling CreateRetry(TimeSpan retryAfter, bool shouldReconnect = false) {}
-
-    public TimeSpan RetryAfter { get; init; }
-    public bool ShouldInvalidateEndPoint { get; init; }
-    public bool ShouldReconnect { get; init; }
-    public bool ShouldRetry { get; init; }
-
-    public override string ToString() {}
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Tapo {
-  public class L530 : TapoDevice {
-    public L530(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public L530(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public L530(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public L530(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public L530(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public L530(string host, IServiceProvider serviceProvider) {}
-    public L530(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask SetBrightnessAsync(int brightness, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorAsync(int hue, int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorHueAsync(int hue, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorSaturationAsync(int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorTemperatureAsync(int colorTemperature, int? brightness = null, CancellationToken cancellationToken = default) {}
-  }
-
-  public class L900 : TapoDevice {
-    public L900(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public L900(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public L900(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public L900(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public L900(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public L900(string host, IServiceProvider serviceProvider) {}
-    public L900(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask SetBrightnessAsync(int brightness, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorAsync(int hue, int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorHueAsync(int hue, int? brightness, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorSaturationAsync(int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-  }
-
-  public class P105 : TapoDevice {
-    public P105(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public P105(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public P105(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public P105(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public P105(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public P105(string host, IServiceProvider serviceProvider) {}
-    public P105(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-  }
-
-  public class TapoAuthenticationException : TapoProtocolException {
-    public TapoAuthenticationException(string message, Uri endPoint, Exception? innerException = null) {}
-  }
-
-  public static class TapoCredentailProviderServiceCollectionExtensions {
-    public static IServiceCollection AddTapoBase64EncodedCredential(this IServiceCollection services, string base64UserNameSHA1Digest, string base64Password) {}
-    public static IServiceCollection AddTapoCredential(this IServiceCollection services, string email, string password) {}
-    public static IServiceCollection AddTapoCredentialProvider(this IServiceCollection services, ITapoCredentialProvider credentialProvider) {}
-  }
-
-  public class TapoDevice :
-    IDisposable,
-    ITapoCredentialIdentity
-  {
-    public static TapoDevice Create(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public static TapoDevice Create(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public static TapoDevice Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(string host, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    protected TapoDevice(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, TapoClientExceptionHandler? exceptionHandler = null, IServiceProvider? serviceProvider = null) {}
-    protected TapoDevice(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    protected TapoDevice(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    protected TapoDevice(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    protected TapoDevice(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    protected TapoDevice(string host, IServiceProvider serviceProvider) {}
-    protected TapoDevice(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    protected bool IsDisposed { get; }
-    public TapoSession? Session { get; }
-    string ITapoCredentialIdentity.Name { get; }
-    public string TerminalUuidString { get; }
-    public TimeSpan? Timeout { get; set; }
-
-    protected virtual void Dispose(bool disposing) {}
-    public void Dispose() {}
-    protected ValueTask EnsureSessionEstablishedAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask<TapoDeviceInfo> GetDeviceInfoAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask<EndPoint> ResolveEndPointAsync(CancellationToken cancellationToken = default) {}
-    protected ValueTask SendRequestAsync<TRequest, TResponse>(TRequest request, CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest where TResponse : ITapoPassThroughResponse {}
-    protected ValueTask<TResult> SendRequestAsync<TRequest, TResponse, TResult>(TRequest request, Func<TResponse, TResult> composeResult, CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest where TResponse : ITapoPassThroughResponse {}
-    public ValueTask SetDeviceInfoAsync<TParameters>(TParameters parameters, CancellationToken cancellationToken = default) {}
-    public ValueTask SetOnOffStateAsync(bool newOnOffState, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOffAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOnAsync(CancellationToken cancellationToken = default) {}
-  }
-
-  public static class TapoDeviceEndPointProvider {
-    public static IDeviceEndPointProvider Create(IPAddress ipAddress) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IDeviceEndPointFactory<PhysicalAddress> endPointFactory) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static IDeviceEndPointProvider Create(string host) {}
-  }
-
-  public class TapoDeviceInfo {
-    public TapoDeviceInfo() {}
-
-    [JsonPropertyName("avatar")]
-    public string? Avatar { get; init; }
-    [JsonPropertyName("fw_id")]
-    public string? FirmwareId { get; init; }
-    [JsonPropertyName("fw_ver")]
-    public string? FirmwareVersion { get; init; }
-    [JsonConverter(typeof(GeolocationInDecimalDegreesJsonConverter))]
-    [JsonPropertyName("latitude")]
-    public decimal? GeolocationLatitude { get; init; }
-    [JsonConverter(typeof(GeolocationInDecimalDegreesJsonConverter))]
-    [JsonPropertyName("longitude")]
-    public decimal? GeolocationLongitude { get; init; }
-    [JsonPropertyName("hw_id")]
-    public string? HardwareId { get; init; }
-    [JsonPropertyName("specs")]
-    public string? HardwareSpecifications { get; init; }
-    [JsonPropertyName("hw_ver")]
-    public string? HardwareVersion { get; init; }
-    [JsonPropertyName("has_set_location_info")]
-    public bool HasGeolocationInfoSet { get; init; }
-    [JsonConverter(typeof(TapoIPAddressJsonConverter))]
-    [JsonPropertyName("ip")]
-    public IPAddress? IPAddress { get; init; }
-    [JsonPropertyName("device_id")]
-    public string? Id { get; init; }
-    [JsonPropertyName("device_on")]
-    public bool IsOn { get; init; }
-    [JsonPropertyName("overheated")]
-    public bool IsOverheated { get; init; }
-    [JsonPropertyName("lang")]
-    public string? Language { get; init; }
-    [JsonConverter(typeof(MacAddressJsonConverter))]
-    [JsonPropertyName("mac")]
-    public PhysicalAddress? MacAddress { get; init; }
-    [JsonPropertyName("model")]
-    public string? ModelName { get; init; }
-    [JsonPropertyName("rssi")]
-    public decimal? NetworkRssi { get; init; }
-    [JsonPropertyName("signal_level")]
-    public int? NetworkSignalLevel { get; init; }
-    [JsonConverter(typeof(TapoBase64StringJsonConverter))]
-    [JsonPropertyName("ssid")]
-    public string? NetworkSsid { get; init; }
-    [JsonConverter(typeof(TapoBase64StringJsonConverter))]
-    [JsonPropertyName("nickname")]
-    public string? NickName { get; init; }
-    [JsonPropertyName("oem_id")]
-    public string? OemId { get; init; }
-    [JsonConverter(typeof(TimeSpanInSecondsJsonConverter))]
-    [JsonPropertyName("on_time")]
-    public TimeSpan? OnTimeDuration { get; init; }
-    [JsonIgnore]
-    public DateTimeOffset TimeStamp { get; }
-    [JsonConverter(typeof(TimeSpanInMinutesJsonConverter))]
-    [JsonPropertyName("time_diff")]
-    public TimeSpan? TimeZoneOffset { get; init; }
-    [JsonPropertyName("region")]
-    public string? TimeZoneRegion { get; init; }
-    [JsonPropertyName("type")]
-    public string? TypeName { get; init; }
-  }
-
-  public class TapoErrorResponseException : TapoProtocolException {
-    public TapoErrorResponseException(Uri requestEndPoint, string requestMethod, ErrorCode errorCode) {}
-
-    public ErrorCode ErrorCode { get; }
-    public string RequestMethod { get; }
-  }
-
-  public static class TapoHttpClientFactoryServiceCollectionExtensions {
-    public static IServiceCollection AddTapoHttpClient(this IServiceCollection services, Action<HttpClient>? configureClient = null) {}
-  }
-
-  public class TapoProtocolException : InvalidOperationException {
-    internal protected TapoProtocolException(string message, Uri endPoint, Exception? innerException) {}
-
-    public Uri EndPoint { get; }
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Credentials {
-  public interface ITapoCredential : IDisposable {
-    void WritePasswordPropertyValue(Utf8JsonWriter writer);
-    void WriteUsernamePropertyValue(Utf8JsonWriter writer);
-  }
-
-  public interface ITapoCredentialIdentity {
-    string Name { get; }
-  }
-
-  public interface ITapoCredentialProvider {
-    ITapoCredential GetCredential(ITapoCredentialIdentity? identity);
-  }
-
-  public static class TapoCredentialUtils {
-    public const int HexSHA1HashSizeInBytes = 40;
-
-    public static string ToBase64EncodedSHA1DigestString(ReadOnlySpan<char> str) {}
-    public static string ToBase64EncodedString(ReadOnlySpan<char> str) {}
-    public static bool TryConvertToHexSHA1Hash(ReadOnlySpan<byte> input, Span<byte> destination, out int bytesWritten) {}
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol {
-  public interface ITapoPassThroughRequest : ITapoRequest {
-  }
-
-  public interface ITapoPassThroughResponse : ITapoResponse {
-  }
-
-  public interface ITapoRequest {
-    string Method { get; }
-  }
-
-  public interface ITapoResponse {
-    ErrorCode ErrorCode { get; init; }
-  }
-
-  public enum ErrorCode : int {
-    Success = 0,
-  }
-
-  public class SecurePassThroughInvalidPaddingException : SystemException {
-    public SecurePassThroughInvalidPaddingException(string message, Exception? innerException) {}
-  }
-
-  public sealed class SecurePassThroughJsonConverterFactory :
-    JsonConverterFactory,
-    IDisposable
-  {
-    public SecurePassThroughJsonConverterFactory(ITapoCredentialIdentity? identity, ICryptoTransform? encryptorForPassThroughRequest, ICryptoTransform? decryptorForPassThroughResponse, JsonSerializerOptions? baseJsonSerializerOptionsForPassThroughMessage, ILogger? logger = null) {}
-
-    public override bool CanConvert(Type typeToConvert) {}
-    public override JsonConverter? CreateConverter(Type typeToConvert, JsonSerializerOptions options) {}
-    public void Dispose() {}
-  }
-
-  public sealed class TapoClient : IDisposable {
-    public const int DefaultPort = 80;
-
-    public TapoClient(EndPoint endPoint, IHttpClientFactory? httpClientFactory = null, ILogger? logger = null) {}
-
-    public Uri EndPointUri { get; }
-    public TapoSession? Session { get; }
-    public TimeSpan? Timeout { get; set; }
-
-    public ValueTask AuthenticateAsync(ITapoCredentialIdentity? identity, ITapoCredentialProvider credential, CancellationToken cancellationToken = default) {}
-    public void Dispose() {}
-    public ValueTask<TResponse> SendRequestAsync<TRequest, TResponse>(CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest, new() where TResponse : ITapoPassThroughResponse {}
-    public ValueTask<TResponse> SendRequestAsync<TRequest, TResponse>(TRequest request, CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest where TResponse : ITapoPassThroughResponse {}
-  }
-
-  public abstract class TapoClientExceptionHandler {
-    internal protected static readonly TapoClientExceptionHandler Default; // = "Smdn.TPSmartHomeDevices.Tapo.Protocol.TapoClientDefaultExceptionHandler"
-
-    protected TapoClientExceptionHandler() {}
-
-    public abstract TapoClientExceptionHandling DetermineHandling(TapoDevice device, Exception exception, int attempt, ILogger? logger);
-  }
-
-  public sealed class TapoSession : IDisposable {
-    public DateTime ExpiresOn { get; }
-    public bool HasExpired { get; }
-    public Uri RequestPathAndQuery { get; }
-    public string? SessionId { get; }
-    public string? Token { get; }
-
-    public void Dispose() {}
-  }
-
-  public static class TapoSessionCookieUtils {
-    public static bool TryGetCookie(HttpResponseMessage response, out string? sessionId, out int? sessionTimeout) {}
-    public static bool TryGetCookie(IEnumerable<string>? cookieValues, out string? sessionId, out int? sessionTimeout) {}
-    public static bool TryParseCookie(ReadOnlySpan<char> cookie, out string? id, out int? timeout) {}
-  }
-
-  public readonly struct GetDeviceInfoRequest : ITapoPassThroughRequest {
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds { get; }
-  }
-
-  public readonly struct GetDeviceInfoResponse : ITapoPassThroughResponse {
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public TapoDeviceInfo Result { get; init; }
-  }
-
-  public readonly struct HandshakeRequest : ITapoRequest {
-    public readonly struct RequestParameters : IEquatable<RequestParameters> {
-      [CompilerGenerated]
-      public static bool operator == (HandshakeRequest.RequestParameters left, HandshakeRequest.RequestParameters right) {}
-      [CompilerGenerated]
-      public static bool operator != (HandshakeRequest.RequestParameters left, HandshakeRequest.RequestParameters right) {}
-
-      public RequestParameters(string Key) {}
-
-      [JsonPropertyName("key")]
-      public string Key { get; init; }
-      [JsonPropertyName("requestTimeMils")]
-      public long RequestTimeMilliseconds { get; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out string Key) {}
-      [CompilerGenerated]
-      public bool Equals(HandshakeRequest.RequestParameters other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    public HandshakeRequest(string key) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public HandshakeRequest.RequestParameters Parameters { get; }
-  }
-
-  public readonly struct HandshakeResponse : ITapoResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> {
-      [CompilerGenerated]
-      public static bool operator == (HandshakeResponse.ResponseResult left, HandshakeResponse.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (HandshakeResponse.ResponseResult left, HandshakeResponse.ResponseResult right) {}
-
-      public ResponseResult(string? Key) {}
-
-      [JsonPropertyName("key")]
-      public string? Key { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out string? Key) {}
-      [CompilerGenerated]
-      public bool Equals(HandshakeResponse.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public HandshakeResponse.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct LoginDeviceRequest : ITapoPassThroughRequest {
-    public LoginDeviceRequest(ITapoCredentialProvider credential) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public ITapoCredentialProvider Parameters { get; }
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds { get; }
-  }
-
-  public readonly struct LoginDeviceResponse : ITapoPassThroughResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> {
-      [CompilerGenerated]
-      public static bool operator == (LoginDeviceResponse.ResponseResult left, LoginDeviceResponse.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (LoginDeviceResponse.ResponseResult left, LoginDeviceResponse.ResponseResult right) {}
-
-      public ResponseResult(string Token) {}
-
-      [JsonPropertyName("token")]
-      public string Token { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out string Token) {}
-      [CompilerGenerated]
-      public bool Equals(LoginDeviceResponse.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public LoginDeviceResponse.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct SecurePassThroughRequest<TPassThroughRequest> : ITapoRequest where TPassThroughRequest : ITapoPassThroughRequest {
-    public readonly struct RequestParams : IEquatable<RequestParams> where TPassThroughRequest : ITapoPassThroughRequest {
-      [CompilerGenerated]
-      public static bool operator == (SecurePassThroughRequest<TPassThroughRequest>.RequestParams left, SecurePassThroughRequest<TPassThroughRequest>.RequestParams right) {}
-      [CompilerGenerated]
-      public static bool operator != (SecurePassThroughRequest<TPassThroughRequest>.RequestParams left, SecurePassThroughRequest<TPassThroughRequest>.RequestParams right) {}
-
-      public RequestParams(TPassThroughRequest PassThroughRequest) {}
-
-      [JsonPropertyName("request")]
-      public TPassThroughRequest PassThroughRequest { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out TPassThroughRequest PassThroughRequest) {}
-      [CompilerGenerated]
-      public bool Equals(SecurePassThroughRequest<TPassThroughRequest>.RequestParams other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    public SecurePassThroughRequest(TPassThroughRequest passThroughRequest) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public SecurePassThroughRequest<TPassThroughRequest>.RequestParams Params { get; }
-  }
-
-  public readonly struct SecurePassThroughResponse<TPassThroughResponse> : ITapoResponse where TPassThroughResponse : ITapoPassThroughResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> where TPassThroughResponse : ITapoPassThroughResponse {
-      [CompilerGenerated]
-      public static bool operator == (SecurePassThroughResponse<TPassThroughResponse>.ResponseResult left, SecurePassThroughResponse<TPassThroughResponse>.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (SecurePassThroughResponse<TPassThroughResponse>.ResponseResult left, SecurePassThroughResponse<TPassThroughResponse>.ResponseResult right) {}
-
-      public ResponseResult(TPassThroughResponse PassThroughResponse) {}
-
-      [JsonPropertyName("response")]
-      public TPassThroughResponse PassThroughResponse { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out TPassThroughResponse PassThroughResponse) {}
-      [CompilerGenerated]
-      public bool Equals(SecurePassThroughResponse<TPassThroughResponse>.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    public SecurePassThroughResponse(ErrorCode errorCode, TPassThroughResponse passThroughResponse) {}
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public SecurePassThroughResponse<TPassThroughResponse>.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct SetDeviceInfoRequest<TParameters> : ITapoPassThroughRequest {
-    public SetDeviceInfoRequest(string terminalUuid, TParameters parameters) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public TParameters Parameters { get; }
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds { get; }
-    [JsonPropertyName("terminalUUID")]
-    public string TerminalUuid { get; }
-  }
-
-  public readonly struct SetDeviceInfoResponse : ITapoPassThroughResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> {
-      [CompilerGenerated]
-      public static bool operator == (SetDeviceInfoResponse.ResponseResult left, SetDeviceInfoResponse.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (SetDeviceInfoResponse.ResponseResult left, SetDeviceInfoResponse.ResponseResult right) {}
-
-      public ResponseResult(IDictionary<string, object>? ExtraData) {}
-
-      [JsonExtensionData]
-      public IDictionary<string, object>? ExtraData { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out IDictionary<string, object>? ExtraData) {}
-      [CompilerGenerated]
-      public bool Equals(SetDeviceInfoResponse.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public SetDeviceInfoResponse.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct TapoClientExceptionHandling {
-    public static readonly TapoClientExceptionHandling InvalidateEndPointAndRetry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=True}"
-    public static readonly TapoClientExceptionHandling InvalidateEndPointAndThrow; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=True}"
-    public static readonly TapoClientExceptionHandling Retry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=False}"
-    public static readonly TapoClientExceptionHandling RetryAfterReconnect; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=True, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=False}"
-    public static readonly TapoClientExceptionHandling Throw; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=False}"
-    public static readonly TapoClientExceptionHandling ThrowAsTapoProtocolException; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=True, ShouldInvalidateEndPoint=False}"
-
-    public static TapoClientExceptionHandling CreateRetry(TimeSpan retryAfter, bool shouldReconnect = false) {}
-
-    public TimeSpan RetryAfter { get; init; }
-    public bool ShouldInvalidateEndPoint { get; init; }
-    public bool ShouldReconnect { get; init; }
-    public bool ShouldRetry { get; init; }
-    public bool ShouldWrapIntoTapoProtocolException { get; init; }
-
-    public override string ToString() {}
-  }
-}
-// API list generated by Smdn.Reflection.ReverseGenerating.ListApi.MSBuild.Tasks v1.2.2.0.
-// Smdn.Reflection.ReverseGenerating.ListApi.Core v1.2.0.0 (https://github.com/smdn/Smdn.Reflection.ReverseGenerating)
diff --git a/doc/api-list/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices-net7.0.apilist.cs b/doc/api-list/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices-net7.0.apilist.cs
deleted file mode 100644
index 6eb1832..0000000
--- a/doc/api-list/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices-net7.0.apilist.cs
+++ /dev/null
@@ -1,805 +0,0 @@
-// Smdn.TPSmartHomeDevices.dll (Smdn.TPSmartHomeDevices-1.0.0-preview3)
-//   Name: Smdn.TPSmartHomeDevices
-//   AssemblyVersion: 1.0.0.0
-//   InformationalVersion: 1.0.0-preview3+ae327055c2651d84fffc372b481a72257af2a9d8
-//   TargetFramework: .NETCoreApp,Version=v7.0
-//   Configuration: Release
-//   Referenced assemblies:
-//     Microsoft.Extensions.DependencyInjection.Abstractions, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
-//     Microsoft.Extensions.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
-//     Microsoft.Extensions.Logging.Abstractions, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
-//     Microsoft.Win32.Primitives, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     Smdn.Fundamental.PrintableEncoding.Hexadecimal, Version=3.0.1.0, Culture=neutral
-//     Smdn.Net.AddressResolution, Version=1.0.0.0, Culture=neutral
-//     System.Collections, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.ComponentModel, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Linq, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Memory, Version=7.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-//     System.Net.Http, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Net.Http.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-//     System.Net.NetworkInformation, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Net.Primitives, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Net.Sockets, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Runtime, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Security.Cryptography, Version=7.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
-//     System.Text.Encodings.Web, Version=7.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-//     System.Text.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-#nullable enable annotations
-
-using System;
-using System.Buffers;
-using System.Collections.Generic;
-using System.Diagnostics.CodeAnalysis;
-using System.Net;
-using System.Net.Http;
-using System.Net.NetworkInformation;
-using System.Security.Cryptography;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
-using Smdn.Net.AddressResolution;
-using Smdn.TPSmartHomeDevices;
-using Smdn.TPSmartHomeDevices.Kasa;
-using Smdn.TPSmartHomeDevices.Kasa.Protocol;
-using Smdn.TPSmartHomeDevices.Tapo;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-using Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-namespace Smdn.TPSmartHomeDevices {
-  public interface IDeviceEndPointFactory<TAddress> {
-    IDeviceEndPointProvider Create(TAddress address, int port = 0);
-  }
-
-  public interface IDeviceEndPointProvider {
-    ValueTask<EndPoint?> GetEndPointAsync(CancellationToken cancellationToken = default);
-  }
-
-  public interface IDynamicDeviceEndPointProvider : IDeviceEndPointProvider {
-    void InvalidateEndPoint();
-  }
-
-  public static class DeviceEndPointFactoryServiceCollectionExtensions {
-    public static IServiceCollection AddDeviceEndPointFactory<TAddress>(this IServiceCollection services, IDeviceEndPointFactory<TAddress> endPointFactory) {}
-  }
-
-  public class DeviceEndPointResolutionException : Exception {
-    public DeviceEndPointResolutionException(IDeviceEndPointProvider deviceEndPointProvider) {}
-    public DeviceEndPointResolutionException(IDeviceEndPointProvider deviceEndPointProvider, string message, Exception? innerException) {}
-
-    public IDeviceEndPointProvider EndPointProvider { get; }
-  }
-
-  public class MacAddressDeviceEndPointFactory :
-    IDeviceEndPointFactory<PhysicalAddress>,
-    IDisposable
-  {
-    protected class MacAddressDeviceEndPointProvider : IDynamicDeviceEndPointProvider {
-      public MacAddressDeviceEndPointProvider(IAddressResolver<PhysicalAddress, IPAddress> resolver, PhysicalAddress address, int port) {}
-
-      public async ValueTask<EndPoint?> GetEndPointAsync(CancellationToken cancellationToken) {}
-      public void InvalidateEndPoint() {}
-      public override string ToString() {}
-    }
-
-    protected MacAddressDeviceEndPointFactory(IAddressResolver<PhysicalAddress, IPAddress> resolver, IServiceProvider? serviceProvider = null) {}
-    public MacAddressDeviceEndPointFactory(MacAddressResolver resolver, IServiceProvider? serviceProvider = null) {}
-    public MacAddressDeviceEndPointFactory(MacAddressResolverOptions? options = null, IServiceProvider? serviceProvider = null) {}
-
-    public virtual IDeviceEndPointProvider Create(PhysicalAddress address, int port = 0) {}
-    protected virtual void Dispose(bool disposing) {}
-    public void Dispose() {}
-    protected void ThrowIfDisposed() {}
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Kasa {
-  public class HS105 : KasaDevice {
-    public HS105(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    public HS105(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    public HS105(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public HS105(string host, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask<bool> GetOnOffStateAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask SetOnOffStateAsync(bool newOnOffState, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOffAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOnAsync(CancellationToken cancellationToken = default) {}
-  }
-
-  public class KL130 : KasaDevice {
-    public KL130(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    public KL130(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    public KL130(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public KL130(string host, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask<KL130LightState> GetLightStateAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask<bool> GetOnOffStateAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorAsync(int hue, int saturation, int? brightness = null, TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorTemperatureAsync(int colorTemperature, int? brightness = null, TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetOnOffStateAsync(bool newOnOffState, TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOffAsync(TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOnAsync(TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-  }
-
-  public class KasaDevice : IDisposable {
-    protected readonly struct NullParameter {
-    }
-
-    protected static readonly JsonEncodedText MethodTextGetSysInfo; // = "get_sysinfo"
-    protected static readonly JsonEncodedText ModuleTextSystem; // = "system"
-
-    public static KasaDevice Create(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    public static KasaDevice Create(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    public static KasaDevice Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static KasaDevice Create(string host, IServiceProvider? serviceProvider = null) {}
-
-    protected KasaDevice(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    protected KasaDevice(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    protected KasaDevice(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    protected KasaDevice(string host, IServiceProvider? serviceProvider = null) {}
-
-    public bool IsConnected { get; }
-    protected bool IsDisposed { get; }
-
-    protected virtual void Dispose(bool disposing) {}
-    public void Dispose() {}
-    public ValueTask<EndPoint> ResolveEndPointAsync(CancellationToken cancellationToken = default) {}
-    protected ValueTask SendRequestAsync<TMethodParameter>(JsonEncodedText module, JsonEncodedText method, TMethodParameter parameters, CancellationToken cancellationToken) {}
-    protected ValueTask<TMethodResult> SendRequestAsync<TMethodParameter, TMethodResult>(JsonEncodedText module, JsonEncodedText method, TMethodParameter parameters, Func<JsonElement, TMethodResult> composeResult, CancellationToken cancellationToken) {}
-    protected ValueTask<TMethodResult> SendRequestAsync<TMethodResult>(JsonEncodedText module, JsonEncodedText method, Func<JsonElement, TMethodResult> composeResult, CancellationToken cancellationToken) {}
-  }
-
-  public static class KasaDeviceEndPointProvider {
-    public static IDeviceEndPointProvider Create(IPAddress ipAddress) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IDeviceEndPointFactory<PhysicalAddress> endPointFactory) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static IDeviceEndPointProvider Create(string host) {}
-  }
-
-  public class KasaDisconnectedException : KasaProtocolException {
-    public KasaDisconnectedException(string message, EndPoint deviceEndPoint, Exception? innerException) {}
-  }
-
-  public class KasaErrorResponseException : KasaUnexpectedResponseException {
-    public KasaErrorResponseException(EndPoint deviceEndPoint, string requestModule, string requestMethod, ErrorCode errorCode) {}
-
-    public ErrorCode ErrorCode { get; }
-  }
-
-  public class KasaIncompleteResponseException : KasaUnexpectedResponseException {
-    public KasaIncompleteResponseException(string message, EndPoint deviceEndPoint, string requestModule, string requestMethod, Exception? innerException) {}
-  }
-
-  public abstract class KasaProtocolException : InvalidOperationException {
-    protected KasaProtocolException(string message, EndPoint deviceEndPoint, Exception? innerException) {}
-
-    public EndPoint DeviceEndPoint { get; }
-  }
-
-  public class KasaUnexpectedResponseException : KasaProtocolException {
-    public KasaUnexpectedResponseException(string message, EndPoint deviceEndPoint, string requestModule, string requestMethod, Exception? innerException) {}
-
-    public string RequestMethod { get; }
-    public string RequestModule { get; }
-  }
-
-  public readonly struct KL130LightState {
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("brightness")]
-    public int? Brightness { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("color_temp")]
-    public int? ColorTemperature { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("hue")]
-    public int? Hue { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-    [JsonConverter(typeof(KasaNumericalBooleanJsonConverter))]
-    [JsonPropertyName("on_off")]
-    public bool IsOn { get; init; }
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("mode")]
-    public string? Mode { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-    [MemberNotNullWhen(true, "IsOn")]
-    [JsonPropertyName("saturation")]
-    public int? Saturation { [MemberNotNullWhen(true, "IsOn")] get; [MemberNotNullWhen(true, "IsOn")] init; }
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol {
-  public enum ErrorCode : int {
-    Success = 0,
-  }
-
-  public sealed class KasaClient : IDisposable {
-    public const int DefaultPort = 9999;
-
-    public KasaClient(EndPoint endPoint, ILogger? logger = null) {}
-
-    public EndPoint EndPoint { get; }
-    public bool IsConnected { get; }
-
-    public void Dispose() {}
-    public ValueTask<TMethodResult> SendAsync<TMethodParameter, TMethodResult>(JsonEncodedText module, JsonEncodedText method, TMethodParameter parameter, Func<JsonElement, TMethodResult> composeResult, CancellationToken cancellationToken = default) {}
-  }
-
-  public abstract class KasaClientExceptionHandler {
-    internal protected static readonly KasaClientExceptionHandler Default; // = "Smdn.TPSmartHomeDevices.Kasa.Protocol.KasaClientDefaultExceptionHandler"
-
-    protected KasaClientExceptionHandler() {}
-
-    public abstract KasaClientExceptionHandling DetermineHandling(KasaDevice device, Exception exception, int attempt, ILogger? logger);
-  }
-
-  public static class KasaJsonSerializer {
-    public const byte InitialKey = 171;
-
-    public static void DecryptInPlace(Span<byte> body) {}
-    public static JsonElement Deserialize(ArrayBufferWriter<byte> buffer, JsonEncodedText module, JsonEncodedText method, ILogger? logger = null) {}
-    public static void EncryptInPlace(Span<byte> body) {}
-    public static void Serialize<TMethodParameter>(ArrayBufferWriter<byte> buffer, JsonEncodedText module, JsonEncodedText method, TMethodParameter parameter, ILogger? logger = null) {}
-  }
-
-  public class KasaMessageBodyTooShortException : KasaMessageException {
-    public KasaMessageBodyTooShortException(int indicatedLength, int actualLength) {}
-
-    public int ActualLength { get; }
-    public int IndicatedLength { get; }
-  }
-
-  public class KasaMessageException : SystemException {
-    public KasaMessageException(string message) {}
-  }
-
-  public class KasaMessageHeaderTooShortException : KasaMessageException {
-    public KasaMessageHeaderTooShortException(string message) {}
-  }
-
-  public readonly struct KasaClientExceptionHandling {
-    public static readonly KasaClientExceptionHandling InvalidateEndPointAndRetry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=True}"
-    public static readonly KasaClientExceptionHandling InvalidateEndPointAndThrow; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=True}"
-    public static readonly KasaClientExceptionHandling Retry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=False}"
-    public static readonly KasaClientExceptionHandling RetryAfterReconnect; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=True, ShouldInvalidateEndPoint=False}"
-    public static readonly KasaClientExceptionHandling Throw; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=False}"
-
-    public static KasaClientExceptionHandling CreateRetry(TimeSpan retryAfter, bool shouldReconnect = false) {}
-
-    public TimeSpan RetryAfter { get; init; }
-    public bool ShouldInvalidateEndPoint { get; init; }
-    public bool ShouldReconnect { get; init; }
-    public bool ShouldRetry { get; init; }
-
-    public override string ToString() {}
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Tapo {
-  public class L530 : TapoDevice {
-    public L530(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public L530(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public L530(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public L530(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public L530(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public L530(string host, IServiceProvider serviceProvider) {}
-    public L530(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask SetBrightnessAsync(int brightness, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorAsync(int hue, int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorHueAsync(int hue, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorSaturationAsync(int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorTemperatureAsync(int colorTemperature, int? brightness = null, CancellationToken cancellationToken = default) {}
-  }
-
-  public class L900 : TapoDevice {
-    public L900(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public L900(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public L900(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public L900(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public L900(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public L900(string host, IServiceProvider serviceProvider) {}
-    public L900(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask SetBrightnessAsync(int brightness, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorAsync(int hue, int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorHueAsync(int hue, int? brightness, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorSaturationAsync(int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-  }
-
-  public class P105 : TapoDevice {
-    public P105(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public P105(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public P105(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public P105(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public P105(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public P105(string host, IServiceProvider serviceProvider) {}
-    public P105(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-  }
-
-  public class TapoAuthenticationException : TapoProtocolException {
-    public TapoAuthenticationException(string message, Uri endPoint, Exception? innerException = null) {}
-  }
-
-  public static class TapoCredentailProviderServiceCollectionExtensions {
-    public static IServiceCollection AddTapoBase64EncodedCredential(this IServiceCollection services, string base64UserNameSHA1Digest, string base64Password) {}
-    public static IServiceCollection AddTapoCredential(this IServiceCollection services, string email, string password) {}
-    public static IServiceCollection AddTapoCredentialProvider(this IServiceCollection services, ITapoCredentialProvider credentialProvider) {}
-  }
-
-  public class TapoDevice :
-    IDisposable,
-    ITapoCredentialIdentity
-  {
-    public static TapoDevice Create(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public static TapoDevice Create(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public static TapoDevice Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(string host, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    protected TapoDevice(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, TapoClientExceptionHandler? exceptionHandler = null, IServiceProvider? serviceProvider = null) {}
-    protected TapoDevice(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    protected TapoDevice(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    protected TapoDevice(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    protected TapoDevice(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    protected TapoDevice(string host, IServiceProvider serviceProvider) {}
-    protected TapoDevice(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    protected bool IsDisposed { get; }
-    public TapoSession? Session { get; }
-    string ITapoCredentialIdentity.Name { get; }
-    public string TerminalUuidString { get; }
-    public TimeSpan? Timeout { get; set; }
-
-    protected virtual void Dispose(bool disposing) {}
-    public void Dispose() {}
-    protected ValueTask EnsureSessionEstablishedAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask<TapoDeviceInfo> GetDeviceInfoAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask<EndPoint> ResolveEndPointAsync(CancellationToken cancellationToken = default) {}
-    protected ValueTask SendRequestAsync<TRequest, TResponse>(TRequest request, CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest where TResponse : ITapoPassThroughResponse {}
-    protected ValueTask<TResult> SendRequestAsync<TRequest, TResponse, TResult>(TRequest request, Func<TResponse, TResult> composeResult, CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest where TResponse : ITapoPassThroughResponse {}
-    public ValueTask SetDeviceInfoAsync<TParameters>(TParameters parameters, CancellationToken cancellationToken = default) {}
-    public ValueTask SetOnOffStateAsync(bool newOnOffState, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOffAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOnAsync(CancellationToken cancellationToken = default) {}
-  }
-
-  public static class TapoDeviceEndPointProvider {
-    public static IDeviceEndPointProvider Create(IPAddress ipAddress) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IDeviceEndPointFactory<PhysicalAddress> endPointFactory) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static IDeviceEndPointProvider Create(string host) {}
-  }
-
-  public class TapoDeviceInfo {
-    public TapoDeviceInfo() {}
-
-    [JsonPropertyName("avatar")]
-    public string? Avatar { get; init; }
-    [JsonPropertyName("fw_id")]
-    public string? FirmwareId { get; init; }
-    [JsonPropertyName("fw_ver")]
-    public string? FirmwareVersion { get; init; }
-    [JsonConverter(typeof(GeolocationInDecimalDegreesJsonConverter))]
-    [JsonPropertyName("latitude")]
-    public decimal? GeolocationLatitude { get; init; }
-    [JsonConverter(typeof(GeolocationInDecimalDegreesJsonConverter))]
-    [JsonPropertyName("longitude")]
-    public decimal? GeolocationLongitude { get; init; }
-    [JsonPropertyName("hw_id")]
-    public string? HardwareId { get; init; }
-    [JsonPropertyName("specs")]
-    public string? HardwareSpecifications { get; init; }
-    [JsonPropertyName("hw_ver")]
-    public string? HardwareVersion { get; init; }
-    [JsonPropertyName("has_set_location_info")]
-    public bool HasGeolocationInfoSet { get; init; }
-    [JsonConverter(typeof(TapoIPAddressJsonConverter))]
-    [JsonPropertyName("ip")]
-    public IPAddress? IPAddress { get; init; }
-    [JsonPropertyName("device_id")]
-    public string? Id { get; init; }
-    [JsonPropertyName("device_on")]
-    public bool IsOn { get; init; }
-    [JsonPropertyName("overheated")]
-    public bool IsOverheated { get; init; }
-    [JsonPropertyName("lang")]
-    public string? Language { get; init; }
-    [JsonConverter(typeof(MacAddressJsonConverter))]
-    [JsonPropertyName("mac")]
-    public PhysicalAddress? MacAddress { get; init; }
-    [JsonPropertyName("model")]
-    public string? ModelName { get; init; }
-    [JsonPropertyName("rssi")]
-    public decimal? NetworkRssi { get; init; }
-    [JsonPropertyName("signal_level")]
-    public int? NetworkSignalLevel { get; init; }
-    [JsonConverter(typeof(TapoBase64StringJsonConverter))]
-    [JsonPropertyName("ssid")]
-    public string? NetworkSsid { get; init; }
-    [JsonConverter(typeof(TapoBase64StringJsonConverter))]
-    [JsonPropertyName("nickname")]
-    public string? NickName { get; init; }
-    [JsonPropertyName("oem_id")]
-    public string? OemId { get; init; }
-    [JsonConverter(typeof(TimeSpanInSecondsJsonConverter))]
-    [JsonPropertyName("on_time")]
-    public TimeSpan? OnTimeDuration { get; init; }
-    [JsonIgnore]
-    public DateTimeOffset TimeStamp { get; }
-    [JsonConverter(typeof(TimeSpanInMinutesJsonConverter))]
-    [JsonPropertyName("time_diff")]
-    public TimeSpan? TimeZoneOffset { get; init; }
-    [JsonPropertyName("region")]
-    public string? TimeZoneRegion { get; init; }
-    [JsonPropertyName("type")]
-    public string? TypeName { get; init; }
-  }
-
-  public class TapoErrorResponseException : TapoProtocolException {
-    public TapoErrorResponseException(Uri requestEndPoint, string requestMethod, ErrorCode errorCode) {}
-
-    public ErrorCode ErrorCode { get; }
-    public string RequestMethod { get; }
-  }
-
-  public static class TapoHttpClientFactoryServiceCollectionExtensions {
-    public static IServiceCollection AddTapoHttpClient(this IServiceCollection services, Action<HttpClient>? configureClient = null) {}
-  }
-
-  public class TapoProtocolException : InvalidOperationException {
-    internal protected TapoProtocolException(string message, Uri endPoint, Exception? innerException) {}
-
-    public Uri EndPoint { get; }
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Credentials {
-  public interface ITapoCredential : IDisposable {
-    void WritePasswordPropertyValue(Utf8JsonWriter writer);
-    void WriteUsernamePropertyValue(Utf8JsonWriter writer);
-  }
-
-  public interface ITapoCredentialIdentity {
-    string Name { get; }
-  }
-
-  public interface ITapoCredentialProvider {
-    ITapoCredential GetCredential(ITapoCredentialIdentity? identity);
-  }
-
-  public static class TapoCredentialUtils {
-    public const int HexSHA1HashSizeInBytes = 40;
-
-    public static string ToBase64EncodedSHA1DigestString(ReadOnlySpan<char> str) {}
-    public static string ToBase64EncodedString(ReadOnlySpan<char> str) {}
-    public static bool TryConvertToHexSHA1Hash(ReadOnlySpan<byte> input, Span<byte> destination, out int bytesWritten) {}
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol {
-  public interface ITapoPassThroughRequest : ITapoRequest {
-  }
-
-  public interface ITapoPassThroughResponse : ITapoResponse {
-  }
-
-  public interface ITapoRequest {
-    string Method { get; }
-  }
-
-  public interface ITapoResponse {
-    ErrorCode ErrorCode { get; init; }
-  }
-
-  public enum ErrorCode : int {
-    Success = 0,
-  }
-
-  public class SecurePassThroughInvalidPaddingException : SystemException {
-    public SecurePassThroughInvalidPaddingException(string message, Exception? innerException) {}
-  }
-
-  public sealed class SecurePassThroughJsonConverterFactory :
-    JsonConverterFactory,
-    IDisposable
-  {
-    public SecurePassThroughJsonConverterFactory(ITapoCredentialIdentity? identity, ICryptoTransform? encryptorForPassThroughRequest, ICryptoTransform? decryptorForPassThroughResponse, JsonSerializerOptions? baseJsonSerializerOptionsForPassThroughMessage, ILogger? logger = null) {}
-
-    public override bool CanConvert(Type typeToConvert) {}
-    public override JsonConverter? CreateConverter(Type typeToConvert, JsonSerializerOptions options) {}
-    public void Dispose() {}
-  }
-
-  public sealed class TapoClient : IDisposable {
-    public const int DefaultPort = 80;
-
-    public TapoClient(EndPoint endPoint, IHttpClientFactory? httpClientFactory = null, ILogger? logger = null) {}
-
-    public Uri EndPointUri { get; }
-    public TapoSession? Session { get; }
-    public TimeSpan? Timeout { get; set; }
-
-    public ValueTask AuthenticateAsync(ITapoCredentialIdentity? identity, ITapoCredentialProvider credential, CancellationToken cancellationToken = default) {}
-    public void Dispose() {}
-    public ValueTask<TResponse> SendRequestAsync<TRequest, TResponse>(CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest, new() where TResponse : ITapoPassThroughResponse {}
-    public ValueTask<TResponse> SendRequestAsync<TRequest, TResponse>(TRequest request, CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest where TResponse : ITapoPassThroughResponse {}
-  }
-
-  public abstract class TapoClientExceptionHandler {
-    internal protected static readonly TapoClientExceptionHandler Default; // = "Smdn.TPSmartHomeDevices.Tapo.Protocol.TapoClientDefaultExceptionHandler"
-
-    protected TapoClientExceptionHandler() {}
-
-    public abstract TapoClientExceptionHandling DetermineHandling(TapoDevice device, Exception exception, int attempt, ILogger? logger);
-  }
-
-  public sealed class TapoSession : IDisposable {
-    public DateTime ExpiresOn { get; }
-    public bool HasExpired { get; }
-    public Uri RequestPathAndQuery { get; }
-    public string? SessionId { get; }
-    public string? Token { get; }
-
-    public void Dispose() {}
-  }
-
-  public static class TapoSessionCookieUtils {
-    public static bool TryGetCookie(HttpResponseMessage response, out string? sessionId, out int? sessionTimeout) {}
-    public static bool TryGetCookie(IEnumerable<string>? cookieValues, out string? sessionId, out int? sessionTimeout) {}
-    public static bool TryParseCookie(ReadOnlySpan<char> cookie, out string? id, out int? timeout) {}
-  }
-
-  public readonly struct GetDeviceInfoRequest : ITapoPassThroughRequest {
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds { get; }
-  }
-
-  public readonly struct GetDeviceInfoResponse : ITapoPassThroughResponse {
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public TapoDeviceInfo Result { get; init; }
-  }
-
-  public readonly struct HandshakeRequest : ITapoRequest {
-    public readonly struct RequestParameters : IEquatable<RequestParameters> {
-      [CompilerGenerated]
-      public static bool operator == (HandshakeRequest.RequestParameters left, HandshakeRequest.RequestParameters right) {}
-      [CompilerGenerated]
-      public static bool operator != (HandshakeRequest.RequestParameters left, HandshakeRequest.RequestParameters right) {}
-
-      public RequestParameters(string Key) {}
-
-      [JsonPropertyName("key")]
-      public string Key { get; init; }
-      [JsonPropertyName("requestTimeMils")]
-      public long RequestTimeMilliseconds { get; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out string Key) {}
-      [CompilerGenerated]
-      public bool Equals(HandshakeRequest.RequestParameters other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    public HandshakeRequest(string key) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public HandshakeRequest.RequestParameters Parameters { get; }
-  }
-
-  public readonly struct HandshakeResponse : ITapoResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> {
-      [CompilerGenerated]
-      public static bool operator == (HandshakeResponse.ResponseResult left, HandshakeResponse.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (HandshakeResponse.ResponseResult left, HandshakeResponse.ResponseResult right) {}
-
-      public ResponseResult(string? Key) {}
-
-      [JsonPropertyName("key")]
-      public string? Key { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out string? Key) {}
-      [CompilerGenerated]
-      public bool Equals(HandshakeResponse.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public HandshakeResponse.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct LoginDeviceRequest : ITapoPassThroughRequest {
-    public LoginDeviceRequest(ITapoCredentialProvider credential) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public ITapoCredentialProvider Parameters { get; }
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds { get; }
-  }
-
-  public readonly struct LoginDeviceResponse : ITapoPassThroughResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> {
-      [CompilerGenerated]
-      public static bool operator == (LoginDeviceResponse.ResponseResult left, LoginDeviceResponse.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (LoginDeviceResponse.ResponseResult left, LoginDeviceResponse.ResponseResult right) {}
-
-      public ResponseResult(string Token) {}
-
-      [JsonPropertyName("token")]
-      public string Token { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out string Token) {}
-      [CompilerGenerated]
-      public bool Equals(LoginDeviceResponse.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public LoginDeviceResponse.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct SecurePassThroughRequest<TPassThroughRequest> : ITapoRequest where TPassThroughRequest : ITapoPassThroughRequest {
-    public readonly struct RequestParams : IEquatable<RequestParams> where TPassThroughRequest : ITapoPassThroughRequest {
-      [CompilerGenerated]
-      public static bool operator == (SecurePassThroughRequest<TPassThroughRequest>.RequestParams left, SecurePassThroughRequest<TPassThroughRequest>.RequestParams right) {}
-      [CompilerGenerated]
-      public static bool operator != (SecurePassThroughRequest<TPassThroughRequest>.RequestParams left, SecurePassThroughRequest<TPassThroughRequest>.RequestParams right) {}
-
-      public RequestParams(TPassThroughRequest PassThroughRequest) {}
-
-      [JsonPropertyName("request")]
-      public TPassThroughRequest PassThroughRequest { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out TPassThroughRequest PassThroughRequest) {}
-      [CompilerGenerated]
-      public bool Equals(SecurePassThroughRequest<TPassThroughRequest>.RequestParams other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    public SecurePassThroughRequest(TPassThroughRequest passThroughRequest) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public SecurePassThroughRequest<TPassThroughRequest>.RequestParams Params { get; }
-  }
-
-  public readonly struct SecurePassThroughResponse<TPassThroughResponse> : ITapoResponse where TPassThroughResponse : ITapoPassThroughResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> where TPassThroughResponse : ITapoPassThroughResponse {
-      [CompilerGenerated]
-      public static bool operator == (SecurePassThroughResponse<TPassThroughResponse>.ResponseResult left, SecurePassThroughResponse<TPassThroughResponse>.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (SecurePassThroughResponse<TPassThroughResponse>.ResponseResult left, SecurePassThroughResponse<TPassThroughResponse>.ResponseResult right) {}
-
-      public ResponseResult(TPassThroughResponse PassThroughResponse) {}
-
-      [JsonPropertyName("response")]
-      public TPassThroughResponse PassThroughResponse { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out TPassThroughResponse PassThroughResponse) {}
-      [CompilerGenerated]
-      public bool Equals(SecurePassThroughResponse<TPassThroughResponse>.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    public SecurePassThroughResponse(ErrorCode errorCode, TPassThroughResponse passThroughResponse) {}
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public SecurePassThroughResponse<TPassThroughResponse>.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct SetDeviceInfoRequest<TParameters> : ITapoPassThroughRequest {
-    public SetDeviceInfoRequest(string terminalUuid, TParameters parameters) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public TParameters Parameters { get; }
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds { get; }
-    [JsonPropertyName("terminalUUID")]
-    public string TerminalUuid { get; }
-  }
-
-  public readonly struct SetDeviceInfoResponse : ITapoPassThroughResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> {
-      [CompilerGenerated]
-      public static bool operator == (SetDeviceInfoResponse.ResponseResult left, SetDeviceInfoResponse.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (SetDeviceInfoResponse.ResponseResult left, SetDeviceInfoResponse.ResponseResult right) {}
-
-      public ResponseResult(IDictionary<string, object>? ExtraData) {}
-
-      [JsonExtensionData]
-      public IDictionary<string, object>? ExtraData { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out IDictionary<string, object>? ExtraData) {}
-      [CompilerGenerated]
-      public bool Equals(SetDeviceInfoResponse.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public SetDeviceInfoResponse.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct TapoClientExceptionHandling {
-    public static readonly TapoClientExceptionHandling InvalidateEndPointAndRetry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=True}"
-    public static readonly TapoClientExceptionHandling InvalidateEndPointAndThrow; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=True}"
-    public static readonly TapoClientExceptionHandling Retry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=False}"
-    public static readonly TapoClientExceptionHandling RetryAfterReconnect; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=True, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=False}"
-    public static readonly TapoClientExceptionHandling Throw; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=False}"
-    public static readonly TapoClientExceptionHandling ThrowAsTapoProtocolException; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=True, ShouldInvalidateEndPoint=False}"
-
-    public static TapoClientExceptionHandling CreateRetry(TimeSpan retryAfter, bool shouldReconnect = false) {}
-
-    public TimeSpan RetryAfter { get; init; }
-    public bool ShouldInvalidateEndPoint { get; init; }
-    public bool ShouldReconnect { get; init; }
-    public bool ShouldRetry { get; init; }
-    public bool ShouldWrapIntoTapoProtocolException { get; init; }
-
-    public override string ToString() {}
-  }
-}
-// API list generated by Smdn.Reflection.ReverseGenerating.ListApi.MSBuild.Tasks v1.2.2.0.
-// Smdn.Reflection.ReverseGenerating.ListApi.Core v1.2.0.0 (https://github.com/smdn/Smdn.Reflection.ReverseGenerating)
diff --git a/doc/api-list/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices-netstandard2.1.apilist.cs b/doc/api-list/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices-netstandard2.1.apilist.cs
deleted file mode 100644
index aaed417..0000000
--- a/doc/api-list/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices-netstandard2.1.apilist.cs
+++ /dev/null
@@ -1,789 +0,0 @@
-// Smdn.TPSmartHomeDevices.dll (Smdn.TPSmartHomeDevices-1.0.0-preview3)
-//   Name: Smdn.TPSmartHomeDevices
-//   AssemblyVersion: 1.0.0.0
-//   InformationalVersion: 1.0.0-preview3+ae327055c2651d84fffc372b481a72257af2a9d8
-//   TargetFramework: .NETStandard,Version=v2.1
-//   Configuration: Release
-//   Referenced assemblies:
-//     Microsoft.Extensions.DependencyInjection.Abstractions, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
-//     Microsoft.Extensions.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
-//     Microsoft.Extensions.Logging.Abstractions, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60
-//     Smdn.Fundamental.PrintableEncoding.Hexadecimal, Version=3.0.1.0, Culture=neutral
-//     Smdn.Net.AddressResolution, Version=1.0.0.0, Culture=neutral
-//     System.Net.Http.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-//     System.Text.Encodings.Web, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-//     System.Text.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-//     netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
-#nullable enable annotations
-
-using System;
-using System.Buffers;
-using System.Collections.Generic;
-using System.Net;
-using System.Net.Http;
-using System.Net.NetworkInformation;
-using System.Security.Cryptography;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
-using Smdn.Net.AddressResolution;
-using Smdn.TPSmartHomeDevices;
-using Smdn.TPSmartHomeDevices.Kasa;
-using Smdn.TPSmartHomeDevices.Kasa.Protocol;
-using Smdn.TPSmartHomeDevices.Tapo;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-using Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-namespace Smdn.TPSmartHomeDevices {
-  public interface IDeviceEndPointFactory<TAddress> {
-    IDeviceEndPointProvider Create(TAddress address, int port = 0);
-  }
-
-  public interface IDeviceEndPointProvider {
-    ValueTask<EndPoint?> GetEndPointAsync(CancellationToken cancellationToken = default);
-  }
-
-  public interface IDynamicDeviceEndPointProvider : IDeviceEndPointProvider {
-    void InvalidateEndPoint();
-  }
-
-  public static class DeviceEndPointFactoryServiceCollectionExtensions {
-    public static IServiceCollection AddDeviceEndPointFactory<TAddress>(this IServiceCollection services, IDeviceEndPointFactory<TAddress> endPointFactory) {}
-  }
-
-  public class DeviceEndPointResolutionException : Exception {
-    public DeviceEndPointResolutionException(IDeviceEndPointProvider deviceEndPointProvider) {}
-    public DeviceEndPointResolutionException(IDeviceEndPointProvider deviceEndPointProvider, string message, Exception? innerException) {}
-
-    public IDeviceEndPointProvider EndPointProvider { get; }
-  }
-
-  public class MacAddressDeviceEndPointFactory :
-    IDeviceEndPointFactory<PhysicalAddress>,
-    IDisposable
-  {
-    protected class MacAddressDeviceEndPointProvider : IDynamicDeviceEndPointProvider {
-      public MacAddressDeviceEndPointProvider(IAddressResolver<PhysicalAddress, IPAddress> resolver, PhysicalAddress address, int port) {}
-
-      public async ValueTask<EndPoint?> GetEndPointAsync(CancellationToken cancellationToken) {}
-      public void InvalidateEndPoint() {}
-      public override string ToString() {}
-    }
-
-    protected MacAddressDeviceEndPointFactory(IAddressResolver<PhysicalAddress, IPAddress> resolver, IServiceProvider? serviceProvider = null) {}
-    public MacAddressDeviceEndPointFactory(MacAddressResolver resolver, IServiceProvider? serviceProvider = null) {}
-    public MacAddressDeviceEndPointFactory(MacAddressResolverOptions? options = null, IServiceProvider? serviceProvider = null) {}
-
-    public virtual IDeviceEndPointProvider Create(PhysicalAddress address, int port = 0) {}
-    protected virtual void Dispose(bool disposing) {}
-    public void Dispose() {}
-    protected void ThrowIfDisposed() {}
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Kasa {
-  public class HS105 : KasaDevice {
-    public HS105(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    public HS105(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    public HS105(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public HS105(string host, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask<bool> GetOnOffStateAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask SetOnOffStateAsync(bool newOnOffState, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOffAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOnAsync(CancellationToken cancellationToken = default) {}
-  }
-
-  public class KL130 : KasaDevice {
-    public KL130(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    public KL130(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    public KL130(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public KL130(string host, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask<KL130LightState> GetLightStateAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask<bool> GetOnOffStateAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorAsync(int hue, int saturation, int? brightness = null, TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorTemperatureAsync(int colorTemperature, int? brightness = null, TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetOnOffStateAsync(bool newOnOffState, TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOffAsync(TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOnAsync(TimeSpan? transitionPeriod = null, CancellationToken cancellationToken = default) {}
-  }
-
-  public class KasaDevice : IDisposable {
-    protected readonly struct NullParameter {
-    }
-
-    protected static readonly JsonEncodedText MethodTextGetSysInfo;
-    protected static readonly JsonEncodedText ModuleTextSystem;
-
-    public static KasaDevice Create(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    public static KasaDevice Create(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    public static KasaDevice Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static KasaDevice Create(string host, IServiceProvider? serviceProvider = null) {}
-
-    protected KasaDevice(IDeviceEndPointProvider deviceEndPointProvider, IServiceProvider? serviceProvider = null) {}
-    protected KasaDevice(IPAddress ipAddress, IServiceProvider? serviceProvider = null) {}
-    protected KasaDevice(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    protected KasaDevice(string host, IServiceProvider? serviceProvider = null) {}
-
-    public bool IsConnected { get; }
-    protected bool IsDisposed { get; }
-
-    protected virtual void Dispose(bool disposing) {}
-    public void Dispose() {}
-    public ValueTask<EndPoint> ResolveEndPointAsync(CancellationToken cancellationToken = default) {}
-    protected ValueTask SendRequestAsync<TMethodParameter>(JsonEncodedText module, JsonEncodedText method, TMethodParameter parameters, CancellationToken cancellationToken) {}
-    protected ValueTask<TMethodResult> SendRequestAsync<TMethodParameter, TMethodResult>(JsonEncodedText module, JsonEncodedText method, TMethodParameter parameters, Func<JsonElement, TMethodResult> composeResult, CancellationToken cancellationToken) {}
-    protected ValueTask<TMethodResult> SendRequestAsync<TMethodResult>(JsonEncodedText module, JsonEncodedText method, Func<JsonElement, TMethodResult> composeResult, CancellationToken cancellationToken) {}
-  }
-
-  public static class KasaDeviceEndPointProvider {
-    public static IDeviceEndPointProvider Create(IPAddress ipAddress) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IDeviceEndPointFactory<PhysicalAddress> endPointFactory) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static IDeviceEndPointProvider Create(string host) {}
-  }
-
-  public class KasaDisconnectedException : KasaProtocolException {
-    public KasaDisconnectedException(string message, EndPoint deviceEndPoint, Exception? innerException) {}
-  }
-
-  public class KasaErrorResponseException : KasaUnexpectedResponseException {
-    public KasaErrorResponseException(EndPoint deviceEndPoint, string requestModule, string requestMethod, ErrorCode errorCode) {}
-
-    public ErrorCode ErrorCode { get; }
-  }
-
-  public class KasaIncompleteResponseException : KasaUnexpectedResponseException {
-    public KasaIncompleteResponseException(string message, EndPoint deviceEndPoint, string requestModule, string requestMethod, Exception? innerException) {}
-  }
-
-  public abstract class KasaProtocolException : InvalidOperationException {
-    protected KasaProtocolException(string message, EndPoint deviceEndPoint, Exception? innerException) {}
-
-    public EndPoint DeviceEndPoint { get; }
-  }
-
-  public class KasaUnexpectedResponseException : KasaProtocolException {
-    public KasaUnexpectedResponseException(string message, EndPoint deviceEndPoint, string requestModule, string requestMethod, Exception? innerException) {}
-
-    public string RequestMethod { get; }
-    public string RequestModule { get; }
-  }
-
-  public readonly struct KL130LightState {
-    [JsonPropertyName("brightness")]
-    public int? Brightness { get; init; }
-    [JsonPropertyName("color_temp")]
-    public int? ColorTemperature { get; init; }
-    [JsonPropertyName("hue")]
-    public int? Hue { get; init; }
-    [JsonConverter(typeof(KasaNumericalBooleanJsonConverter))]
-    [JsonPropertyName("on_off")]
-    public bool IsOn { get; init; }
-    [JsonPropertyName("mode")]
-    public string? Mode { get; init; }
-    [JsonPropertyName("saturation")]
-    public int? Saturation { get; init; }
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol {
-  public enum ErrorCode : int {
-    Success = 0,
-  }
-
-  public sealed class KasaClient : IDisposable {
-    public const int DefaultPort = 9999;
-
-    public KasaClient(EndPoint endPoint, ILogger? logger = null) {}
-
-    public EndPoint EndPoint { get; }
-    public bool IsConnected { get; }
-
-    public void Dispose() {}
-    public ValueTask<TMethodResult> SendAsync<TMethodParameter, TMethodResult>(JsonEncodedText module, JsonEncodedText method, TMethodParameter parameter, Func<JsonElement, TMethodResult> composeResult, CancellationToken cancellationToken = default) {}
-  }
-
-  public abstract class KasaClientExceptionHandler {
-    internal protected static readonly KasaClientExceptionHandler Default; // = "Smdn.TPSmartHomeDevices.Kasa.Protocol.KasaClientDefaultExceptionHandler"
-
-    protected KasaClientExceptionHandler() {}
-
-    public abstract KasaClientExceptionHandling DetermineHandling(KasaDevice device, Exception exception, int attempt, ILogger? logger);
-  }
-
-  public static class KasaJsonSerializer {
-    public const byte InitialKey = 171;
-
-    public static void DecryptInPlace(Span<byte> body) {}
-    public static JsonElement Deserialize(ArrayBufferWriter<byte> buffer, JsonEncodedText module, JsonEncodedText method, ILogger? logger = null) {}
-    public static void EncryptInPlace(Span<byte> body) {}
-    public static void Serialize<TMethodParameter>(ArrayBufferWriter<byte> buffer, JsonEncodedText module, JsonEncodedText method, TMethodParameter parameter, ILogger? logger = null) {}
-  }
-
-  public class KasaMessageBodyTooShortException : KasaMessageException {
-    public KasaMessageBodyTooShortException(int indicatedLength, int actualLength) {}
-
-    public int ActualLength { get; }
-    public int IndicatedLength { get; }
-  }
-
-  public class KasaMessageException : SystemException {
-    public KasaMessageException(string message) {}
-  }
-
-  public class KasaMessageHeaderTooShortException : KasaMessageException {
-    public KasaMessageHeaderTooShortException(string message) {}
-  }
-
-  public readonly struct KasaClientExceptionHandling {
-    public static readonly KasaClientExceptionHandling InvalidateEndPointAndRetry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=True}"
-    public static readonly KasaClientExceptionHandling InvalidateEndPointAndThrow; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=True}"
-    public static readonly KasaClientExceptionHandling Retry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=False}"
-    public static readonly KasaClientExceptionHandling RetryAfterReconnect; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=True, ShouldInvalidateEndPoint=False}"
-    public static readonly KasaClientExceptionHandling Throw; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldInvalidateEndPoint=False}"
-
-    public static KasaClientExceptionHandling CreateRetry(TimeSpan retryAfter, bool shouldReconnect = false) {}
-
-    public TimeSpan RetryAfter { get; init; }
-    public bool ShouldInvalidateEndPoint { get; init; }
-    public bool ShouldReconnect { get; init; }
-    public bool ShouldRetry { get; init; }
-
-    public override string ToString() {}
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Tapo {
-  public class L530 : TapoDevice {
-    public L530(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public L530(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public L530(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public L530(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public L530(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public L530(string host, IServiceProvider serviceProvider) {}
-    public L530(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask SetBrightnessAsync(int brightness, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorAsync(int hue, int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorHueAsync(int hue, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorSaturationAsync(int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorTemperatureAsync(int colorTemperature, int? brightness = null, CancellationToken cancellationToken = default) {}
-  }
-
-  public class L900 : TapoDevice {
-    public L900(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public L900(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public L900(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public L900(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public L900(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public L900(string host, IServiceProvider serviceProvider) {}
-    public L900(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    public ValueTask SetBrightnessAsync(int brightness, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorAsync(int hue, int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorHueAsync(int hue, int? brightness, CancellationToken cancellationToken = default) {}
-    public ValueTask SetColorSaturationAsync(int saturation, int? brightness = null, CancellationToken cancellationToken = default) {}
-  }
-
-  public class P105 : TapoDevice {
-    public P105(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public P105(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public P105(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public P105(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public P105(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public P105(string host, IServiceProvider serviceProvider) {}
-    public P105(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-  }
-
-  public class TapoAuthenticationException : TapoProtocolException {
-    public TapoAuthenticationException(string message, Uri endPoint, Exception? innerException = null) {}
-  }
-
-  public static class TapoCredentailProviderServiceCollectionExtensions {
-    public static IServiceCollection AddTapoBase64EncodedCredential(this IServiceCollection services, string base64UserNameSHA1Digest, string base64Password) {}
-    public static IServiceCollection AddTapoCredential(this IServiceCollection services, string email, string password) {}
-    public static IServiceCollection AddTapoCredentialProvider(this IServiceCollection services, ITapoCredentialProvider credentialProvider) {}
-  }
-
-  public class TapoDevice :
-    IDisposable,
-    ITapoCredentialIdentity
-  {
-    public static TapoDevice Create(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, IServiceProvider? serviceProvider = null) {}
-    public static TapoDevice Create(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    public static TapoDevice Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(string host, IServiceProvider serviceProvider) {}
-    public static TapoDevice Create(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    protected TapoDevice(IDeviceEndPointProvider deviceEndPointProvider, ITapoCredentialProvider? credential = null, TapoClientExceptionHandler? exceptionHandler = null, IServiceProvider? serviceProvider = null) {}
-    protected TapoDevice(IPAddress ipAddress, IServiceProvider serviceProvider) {}
-    protected TapoDevice(IPAddress ipAddress, string email, string password, IServiceProvider? serviceProvider = null) {}
-    protected TapoDevice(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    protected TapoDevice(PhysicalAddress macAddress, string email, string password, IServiceProvider serviceProvider) {}
-    protected TapoDevice(string host, IServiceProvider serviceProvider) {}
-    protected TapoDevice(string host, string email, string password, IServiceProvider? serviceProvider = null) {}
-
-    protected bool IsDisposed { get; }
-    public TapoSession? Session { get; }
-    string ITapoCredentialIdentity.Name { get; }
-    public string TerminalUuidString { get; }
-    public TimeSpan? Timeout { get; set; }
-
-    protected virtual void Dispose(bool disposing) {}
-    public void Dispose() {}
-    protected ValueTask EnsureSessionEstablishedAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask<TapoDeviceInfo> GetDeviceInfoAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask<EndPoint> ResolveEndPointAsync(CancellationToken cancellationToken = default) {}
-    protected ValueTask SendRequestAsync<TRequest, TResponse>(TRequest request, CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest where TResponse : ITapoPassThroughResponse {}
-    protected ValueTask<TResult> SendRequestAsync<TRequest, TResponse, TResult>(TRequest request, Func<TResponse, TResult> composeResult, CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest where TResponse : ITapoPassThroughResponse {}
-    public ValueTask SetDeviceInfoAsync<TParameters>(TParameters parameters, CancellationToken cancellationToken = default) {}
-    public ValueTask SetOnOffStateAsync(bool newOnOffState, CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOffAsync(CancellationToken cancellationToken = default) {}
-    public ValueTask TurnOnAsync(CancellationToken cancellationToken = default) {}
-  }
-
-  public static class TapoDeviceEndPointProvider {
-    public static IDeviceEndPointProvider Create(IPAddress ipAddress) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IDeviceEndPointFactory<PhysicalAddress> endPointFactory) {}
-    public static IDeviceEndPointProvider Create(PhysicalAddress macAddress, IServiceProvider serviceProvider) {}
-    public static IDeviceEndPointProvider Create(string host) {}
-  }
-
-  public class TapoDeviceInfo {
-    public TapoDeviceInfo() {}
-
-    [JsonPropertyName("avatar")]
-    public string? Avatar { get; init; }
-    [JsonPropertyName("fw_id")]
-    public string? FirmwareId { get; init; }
-    [JsonPropertyName("fw_ver")]
-    public string? FirmwareVersion { get; init; }
-    [JsonConverter(typeof(GeolocationInDecimalDegreesJsonConverter))]
-    [JsonPropertyName("latitude")]
-    public decimal? GeolocationLatitude { get; init; }
-    [JsonConverter(typeof(GeolocationInDecimalDegreesJsonConverter))]
-    [JsonPropertyName("longitude")]
-    public decimal? GeolocationLongitude { get; init; }
-    [JsonPropertyName("hw_id")]
-    public string? HardwareId { get; init; }
-    [JsonPropertyName("specs")]
-    public string? HardwareSpecifications { get; init; }
-    [JsonPropertyName("hw_ver")]
-    public string? HardwareVersion { get; init; }
-    [JsonPropertyName("has_set_location_info")]
-    public bool HasGeolocationInfoSet { get; init; }
-    [JsonConverter(typeof(TapoIPAddressJsonConverter))]
-    [JsonPropertyName("ip")]
-    public IPAddress? IPAddress { get; init; }
-    [JsonPropertyName("device_id")]
-    public string? Id { get; init; }
-    [JsonPropertyName("device_on")]
-    public bool IsOn { get; init; }
-    [JsonPropertyName("overheated")]
-    public bool IsOverheated { get; init; }
-    [JsonPropertyName("lang")]
-    public string? Language { get; init; }
-    [JsonConverter(typeof(MacAddressJsonConverter))]
-    [JsonPropertyName("mac")]
-    public PhysicalAddress? MacAddress { get; init; }
-    [JsonPropertyName("model")]
-    public string? ModelName { get; init; }
-    [JsonPropertyName("rssi")]
-    public decimal? NetworkRssi { get; init; }
-    [JsonPropertyName("signal_level")]
-    public int? NetworkSignalLevel { get; init; }
-    [JsonConverter(typeof(TapoBase64StringJsonConverter))]
-    [JsonPropertyName("ssid")]
-    public string? NetworkSsid { get; init; }
-    [JsonConverter(typeof(TapoBase64StringJsonConverter))]
-    [JsonPropertyName("nickname")]
-    public string? NickName { get; init; }
-    [JsonPropertyName("oem_id")]
-    public string? OemId { get; init; }
-    [JsonConverter(typeof(TimeSpanInSecondsJsonConverter))]
-    [JsonPropertyName("on_time")]
-    public TimeSpan? OnTimeDuration { get; init; }
-    [JsonIgnore]
-    public DateTimeOffset TimeStamp { get; }
-    [JsonConverter(typeof(TimeSpanInMinutesJsonConverter))]
-    [JsonPropertyName("time_diff")]
-    public TimeSpan? TimeZoneOffset { get; init; }
-    [JsonPropertyName("region")]
-    public string? TimeZoneRegion { get; init; }
-    [JsonPropertyName("type")]
-    public string? TypeName { get; init; }
-  }
-
-  public class TapoErrorResponseException : TapoProtocolException {
-    public TapoErrorResponseException(Uri requestEndPoint, string requestMethod, ErrorCode errorCode) {}
-
-    public ErrorCode ErrorCode { get; }
-    public string RequestMethod { get; }
-  }
-
-  public static class TapoHttpClientFactoryServiceCollectionExtensions {
-    public static IServiceCollection AddTapoHttpClient(this IServiceCollection services, Action<HttpClient>? configureClient = null) {}
-  }
-
-  public class TapoProtocolException : InvalidOperationException {
-    internal protected TapoProtocolException(string message, Uri endPoint, Exception? innerException) {}
-
-    public Uri EndPoint { get; }
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Credentials {
-  public interface ITapoCredential : IDisposable {
-    [...] <unknown> WritePasswordPropertyValue(...);
-    [...] <unknown> WriteUsernamePropertyValue(...);
-  }
-
-  public interface ITapoCredentialIdentity {
-    string Name { get; }
-  }
-
-  public interface ITapoCredentialProvider {
-    ITapoCredential GetCredential(ITapoCredentialIdentity? identity);
-  }
-
-  public static class TapoCredentialUtils {
-    public const int HexSHA1HashSizeInBytes = 40;
-
-    public static string ToBase64EncodedSHA1DigestString(ReadOnlySpan<char> str) {}
-    public static string ToBase64EncodedString(ReadOnlySpan<char> str) {}
-    public static bool TryConvertToHexSHA1Hash(ReadOnlySpan<byte> input, Span<byte> destination, out int bytesWritten) {}
-  }
-}
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol {
-  public interface ITapoPassThroughRequest : ITapoRequest {
-  }
-
-  public interface ITapoPassThroughResponse : ITapoResponse {
-  }
-
-  public interface ITapoRequest {
-    string Method { get; }
-  }
-
-  public interface ITapoResponse {
-    ErrorCode ErrorCode { get; init; }
-  }
-
-  public enum ErrorCode : int {
-    Success = 0,
-  }
-
-  public class SecurePassThroughInvalidPaddingException : SystemException {
-    public SecurePassThroughInvalidPaddingException(string message, Exception? innerException) {}
-  }
-
-  public sealed class SecurePassThroughJsonConverterFactory :
-    JsonConverterFactory,
-    IDisposable
-  {
-    public SecurePassThroughJsonConverterFactory(ITapoCredentialIdentity? identity, ICryptoTransform? encryptorForPassThroughRequest, ICryptoTransform? decryptorForPassThroughResponse, JsonSerializerOptions? baseJsonSerializerOptionsForPassThroughMessage, ILogger? logger = null) {}
-
-    public override bool CanConvert(Type typeToConvert) {}
-    public override JsonConverter? CreateConverter(Type typeToConvert, JsonSerializerOptions options) {}
-    public void Dispose() {}
-  }
-
-  public sealed class TapoClient : IDisposable {
-    public const int DefaultPort = 80;
-
-    public TapoClient(EndPoint endPoint, IHttpClientFactory? httpClientFactory = null, ILogger? logger = null) {}
-
-    public Uri EndPointUri { get; }
-    public TapoSession? Session { get; }
-    public TimeSpan? Timeout { get; set; }
-
-    public ValueTask AuthenticateAsync(ITapoCredentialIdentity? identity, ITapoCredentialProvider credential, CancellationToken cancellationToken = default) {}
-    public void Dispose() {}
-    public ValueTask<TResponse> SendRequestAsync<TRequest, TResponse>(CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest, new() where TResponse : ITapoPassThroughResponse {}
-    public ValueTask<TResponse> SendRequestAsync<TRequest, TResponse>(TRequest request, CancellationToken cancellationToken = default) where TRequest : ITapoPassThroughRequest where TResponse : ITapoPassThroughResponse {}
-  }
-
-  public abstract class TapoClientExceptionHandler {
-    internal protected static readonly TapoClientExceptionHandler Default; // = "Smdn.TPSmartHomeDevices.Tapo.Protocol.TapoClientDefaultExceptionHandler"
-
-    protected TapoClientExceptionHandler() {}
-
-    public abstract TapoClientExceptionHandling DetermineHandling(TapoDevice device, Exception exception, int attempt, ILogger? logger);
-  }
-
-  public sealed class TapoSession : IDisposable {
-    public DateTime ExpiresOn { get; }
-    public bool HasExpired { get; }
-    public Uri RequestPathAndQuery { get; }
-    public string? SessionId { get; }
-    public string? Token { get; }
-
-    public void Dispose() {}
-  }
-
-  public static class TapoSessionCookieUtils {
-    public static bool TryGetCookie(HttpResponseMessage response, out string? sessionId, out int? sessionTimeout) {}
-    public static bool TryGetCookie(IEnumerable<string>? cookieValues, out string? sessionId, out int? sessionTimeout) {}
-    public static bool TryParseCookie(ReadOnlySpan<char> cookie, out string? id, out int? timeout) {}
-  }
-
-  public readonly struct GetDeviceInfoRequest : ITapoPassThroughRequest {
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds { get; }
-  }
-
-  public readonly struct GetDeviceInfoResponse : ITapoPassThroughResponse {
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public TapoDeviceInfo Result { get; init; }
-  }
-
-  public readonly struct HandshakeRequest : ITapoRequest {
-    public readonly struct RequestParameters : IEquatable<RequestParameters> {
-      [CompilerGenerated]
-      public static bool operator == (HandshakeRequest.RequestParameters left, HandshakeRequest.RequestParameters right) {}
-      [CompilerGenerated]
-      public static bool operator != (HandshakeRequest.RequestParameters left, HandshakeRequest.RequestParameters right) {}
-
-      public RequestParameters(string Key) {}
-
-      [JsonPropertyName("key")]
-      public string Key { get; init; }
-      [JsonPropertyName("requestTimeMils")]
-      public long RequestTimeMilliseconds { get; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out string Key) {}
-      [CompilerGenerated]
-      public bool Equals(HandshakeRequest.RequestParameters other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    public HandshakeRequest(string key) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public HandshakeRequest.RequestParameters Parameters { get; }
-  }
-
-  public readonly struct HandshakeResponse : ITapoResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> {
-      [CompilerGenerated]
-      public static bool operator == (HandshakeResponse.ResponseResult left, HandshakeResponse.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (HandshakeResponse.ResponseResult left, HandshakeResponse.ResponseResult right) {}
-
-      public ResponseResult(string? Key) {}
-
-      [JsonPropertyName("key")]
-      public string? Key { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out string? Key) {}
-      [CompilerGenerated]
-      public bool Equals(HandshakeResponse.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public HandshakeResponse.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct LoginDeviceRequest : ITapoPassThroughRequest {
-    public LoginDeviceRequest(ITapoCredentialProvider credential) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public ITapoCredentialProvider Parameters { get; }
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds { get; }
-  }
-
-  public readonly struct LoginDeviceResponse : ITapoPassThroughResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> {
-      [CompilerGenerated]
-      public static bool operator == (LoginDeviceResponse.ResponseResult left, LoginDeviceResponse.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (LoginDeviceResponse.ResponseResult left, LoginDeviceResponse.ResponseResult right) {}
-
-      public ResponseResult(string Token) {}
-
-      [JsonPropertyName("token")]
-      public string Token { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out string Token) {}
-      [CompilerGenerated]
-      public bool Equals(LoginDeviceResponse.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public LoginDeviceResponse.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct SecurePassThroughRequest<TPassThroughRequest> : ITapoRequest where TPassThroughRequest : ITapoPassThroughRequest {
-    public readonly struct RequestParams : IEquatable<RequestParams> where TPassThroughRequest : ITapoPassThroughRequest {
-      [CompilerGenerated]
-      public static bool operator == (SecurePassThroughRequest<TPassThroughRequest>.RequestParams left, SecurePassThroughRequest<TPassThroughRequest>.RequestParams right) {}
-      [CompilerGenerated]
-      public static bool operator != (SecurePassThroughRequest<TPassThroughRequest>.RequestParams left, SecurePassThroughRequest<TPassThroughRequest>.RequestParams right) {}
-
-      public RequestParams(TPassThroughRequest PassThroughRequest) {}
-
-      [JsonPropertyName("request")]
-      public TPassThroughRequest PassThroughRequest { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out TPassThroughRequest PassThroughRequest) {}
-      [CompilerGenerated]
-      public bool Equals(SecurePassThroughRequest<TPassThroughRequest>.RequestParams other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    public SecurePassThroughRequest(TPassThroughRequest passThroughRequest) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public SecurePassThroughRequest<TPassThroughRequest>.RequestParams Params { get; }
-  }
-
-  public readonly struct SecurePassThroughResponse<TPassThroughResponse> : ITapoResponse where TPassThroughResponse : ITapoPassThroughResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> where TPassThroughResponse : ITapoPassThroughResponse {
-      [CompilerGenerated]
-      public static bool operator == (SecurePassThroughResponse<TPassThroughResponse>.ResponseResult left, SecurePassThroughResponse<TPassThroughResponse>.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (SecurePassThroughResponse<TPassThroughResponse>.ResponseResult left, SecurePassThroughResponse<TPassThroughResponse>.ResponseResult right) {}
-
-      public ResponseResult(TPassThroughResponse PassThroughResponse) {}
-
-      [JsonPropertyName("response")]
-      public TPassThroughResponse PassThroughResponse { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out TPassThroughResponse PassThroughResponse) {}
-      [CompilerGenerated]
-      public bool Equals(SecurePassThroughResponse<TPassThroughResponse>.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    public SecurePassThroughResponse(ErrorCode errorCode, TPassThroughResponse passThroughResponse) {}
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public SecurePassThroughResponse<TPassThroughResponse>.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct SetDeviceInfoRequest<TParameters> : ITapoPassThroughRequest {
-    public SetDeviceInfoRequest(string terminalUuid, TParameters parameters) {}
-
-    [JsonPropertyName("method")]
-    [JsonPropertyOrder(0)]
-    public string Method { get; }
-    [JsonPropertyName("params")]
-    public TParameters Parameters { get; }
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds { get; }
-    [JsonPropertyName("terminalUUID")]
-    public string TerminalUuid { get; }
-  }
-
-  public readonly struct SetDeviceInfoResponse : ITapoPassThroughResponse {
-    public readonly struct ResponseResult : IEquatable<ResponseResult> {
-      [CompilerGenerated]
-      public static bool operator == (SetDeviceInfoResponse.ResponseResult left, SetDeviceInfoResponse.ResponseResult right) {}
-      [CompilerGenerated]
-      public static bool operator != (SetDeviceInfoResponse.ResponseResult left, SetDeviceInfoResponse.ResponseResult right) {}
-
-      public ResponseResult(IDictionary<string, object>? ExtraData) {}
-
-      [JsonExtensionData]
-      public IDictionary<string, object>? ExtraData { get; init; }
-
-      [CompilerGenerated]
-      public void Deconstruct(out IDictionary<string, object>? ExtraData) {}
-      [CompilerGenerated]
-      public bool Equals(SetDeviceInfoResponse.ResponseResult other) {}
-      [CompilerGenerated]
-      public override bool Equals(object obj) {}
-      [CompilerGenerated]
-      public override int GetHashCode() {}
-      [CompilerGenerated]
-      public override string ToString() {}
-    }
-
-    [JsonPropertyName("error_code")]
-    public ErrorCode ErrorCode { get; init; }
-    [JsonPropertyName("result")]
-    public SetDeviceInfoResponse.ResponseResult Result { get; init; }
-  }
-
-  public readonly struct TapoClientExceptionHandling {
-    public static readonly TapoClientExceptionHandling InvalidateEndPointAndRetry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=True}"
-    public static readonly TapoClientExceptionHandling InvalidateEndPointAndThrow; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=True}"
-    public static readonly TapoClientExceptionHandling Retry; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=False}"
-    public static readonly TapoClientExceptionHandling RetryAfterReconnect; // = "{ShouldRetry=True, RetryAfter=00:00:00, ShouldReconnect=True, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=False}"
-    public static readonly TapoClientExceptionHandling Throw; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=False, ShouldInvalidateEndPoint=False}"
-    public static readonly TapoClientExceptionHandling ThrowAsTapoProtocolException; // = "{ShouldRetry=False, RetryAfter=00:00:00, ShouldReconnect=False, ShouldWrapIntoTapoProtocolException=True, ShouldInvalidateEndPoint=False}"
-
-    public static TapoClientExceptionHandling CreateRetry(TimeSpan retryAfter, bool shouldReconnect = false) {}
-
-    public TimeSpan RetryAfter { get; init; }
-    public bool ShouldInvalidateEndPoint { get; init; }
-    public bool ShouldReconnect { get; init; }
-    public bool ShouldRetry { get; init; }
-    public bool ShouldWrapIntoTapoProtocolException { get; init; }
-
-    public override string ToString() {}
-  }
-}
-// API list generated by Smdn.Reflection.ReverseGenerating.ListApi.MSBuild.Tasks v1.2.2.0.
-// Smdn.Reflection.ReverseGenerating.ListApi.Core v1.2.0.0 (https://github.com/smdn/Smdn.Reflection.ReverseGenerating)

releasenote.section3.package-changes.diff

--- Smdn.TPSmartHomeDevices.latest.nuspec
+++ Smdn.TPSmartHomeDevices.1.0.0-rc1.nuspec
@@ -1,41 +1,30 @@
 <?xml version="1.0" encoding="utf-8"?>
-<package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
+<package xmlns="http://schemas.microsoft.com/packaging/2012/06/nuspec.xsd">
   <metadata>
     <id>Smdn.TPSmartHomeDevices</id>
-    <version>1.0.0-preview3</version>
+    <version>1.0.0-rc1</version>
     <title>Smdn.TPSmartHomeDevices</title>
     <authors>smdn</authors>
     <license type="expression">MIT</license>
     <licenseUrl>https://licenses.nuget.org/MIT</licenseUrl>
     <icon>Smdn.TPSmartHomeDevices.png</icon>
     <readme>README.md</readme>
     <projectUrl>https://github.com/smdn/Smdn.TPSmartHomeDevices/</projectUrl>
-    <description>.NET implementations for Kasa and Tapo, the TP-Link smart home devices.</description>
+    <description>A meta package that addes the dependency of Smdn.TPSmartHomeDevices.Kasa, Smdn.TPSmartHomeDevices.Tapo and Smdn.TPSmartHomeDevices.MacAddressEndPoint. This package is deprecated, use the individual packages instead.</description>
     <copyright>Copyright © 2022 smdn</copyright>
-    <tags>smdn.jp tplink-kasa,tplink-tapo,smarthome,homeautomation,smartdevice</tags>
-    <repository type="git" url="https://github.com/smdn/Smdn.TPSmartHomeDevices" branch="main" commit="ae327055c2651d84fffc372b481a72257af2a9d8" />
+    <tags>smdn.jp metapackage,tplink-kasa,tplink-tapo,smarthome,homeautomation,smartdevice</tags>
+    <repository type="git" url="https://github.com/smdn/Smdn.TPSmartHomeDevices" commit="18af508b38d77fa369978c80b2088c6b506a74e7" />
     <dependencies>
       <group targetFramework="net6.0">
-        <dependency id="Microsoft.Extensions.DependencyInjection" version="6.0.0" exclude="Build,Analyzers" />
-        <dependency id="Microsoft.Extensions.Http" version="6.0.0" exclude="Build,Analyzers" />
-        <dependency id="Smdn.Fundamental.PrintableEncoding.Hexadecimal" version="3.0.1" exclude="Build,Analyzers" />
-        <dependency id="Smdn.Net.AddressResolution" version="1.0.0-preview5" exclude="Build,Analyzers" />
-        <dependency id="System.Net.Http.Json" version="6.0.0" exclude="Build,Analyzers" />
-      </group>
-      <group targetFramework="net7.0">
-        <dependency id="Microsoft.Extensions.DependencyInjection" version="6.0.0" exclude="Build,Analyzers" />
-        <dependency id="Microsoft.Extensions.Http" version="6.0.0" exclude="Build,Analyzers" />
-        <dependency id="Smdn.Fundamental.PrintableEncoding.Hexadecimal" version="3.0.1" exclude="Build,Analyzers" />
-        <dependency id="Smdn.Net.AddressResolution" version="1.0.0-preview5" exclude="Build,Analyzers" />
-        <dependency id="System.Net.Http.Json" version="6.0.0" exclude="Build,Analyzers" />
+        <dependency id="Smdn.TPSmartHomeDevices.Kasa" version="[1.0.0-rc1, 1.0.0)" exclude="Build,Analyzers" />
+        <dependency id="Smdn.TPSmartHomeDevices.MacAddressEndPoint" version="[1.0.0-rc1, 1.0.0)" exclude="Build,Analyzers" />
+        <dependency id="Smdn.TPSmartHomeDevices.Tapo" version="[1.0.0-rc1, 1.0.0)" exclude="Build,Analyzers" />
       </group>
       <group targetFramework=".NETStandard2.1">
-        <dependency id="Microsoft.Extensions.DependencyInjection" version="6.0.0" exclude="Build,Analyzers" />
-        <dependency id="Microsoft.Extensions.Http" version="6.0.0" exclude="Build,Analyzers" />
-        <dependency id="Smdn.Fundamental.PrintableEncoding.Hexadecimal" version="3.0.1" exclude="Build,Analyzers" />
-        <dependency id="Smdn.Net.AddressResolution" version="1.0.0-preview5" exclude="Build,Analyzers" />
-        <dependency id="System.Net.Http.Json" version="6.0.0" exclude="Build,Analyzers" />
+        <dependency id="Smdn.TPSmartHomeDevices.Kasa" version="[1.0.0-rc1, 1.0.0)" exclude="Build,Analyzers" />
+        <dependency id="Smdn.TPSmartHomeDevices.MacAddressEndPoint" version="[1.0.0-rc1, 1.0.0)" exclude="Build,Analyzers" />
+        <dependency id="Smdn.TPSmartHomeDevices.Tapo" version="[1.0.0-rc1, 1.0.0)" exclude="Build,Analyzers" />
       </group>
     </dependencies>
   </metadata>
 </package>
\ No newline at end of file

releasenote.section4.full-changes.diff

diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/GeolocationInDecimalDegreesJsonConverter.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/GeolocationInDecimalDegreesJsonConverter.cs
deleted file mode 100644
index 7445a17..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/GeolocationInDecimalDegreesJsonConverter.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Json;
-
-internal sealed class GeolocationInDecimalDegreesJsonConverter : JsonConverter<decimal?> {
-  private const decimal Scaler = 10000m;
-
-  public override decimal? Read(
-    ref Utf8JsonReader reader,
-    Type typeToConvert,
-    JsonSerializerOptions options
-  )
-    => reader.TryGetDecimal(out var scaledDecimalDegrees)
-      ? scaledDecimalDegrees / Scaler
-      : null;
-
-  public override void Write(
-    Utf8JsonWriter writer,
-    decimal? value,
-    JsonSerializerOptions options
-  )
-    => throw new NotImplementedException();
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/MacAddressJsonConverter.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/MacAddressJsonConverter.cs
deleted file mode 100644
index 989c75a..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/MacAddressJsonConverter.cs
+++ /dev/null
@@ -1,42 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net.NetworkInformation;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Json;
-
-internal sealed class MacAddressJsonConverter : JsonConverter<PhysicalAddress> {
-  public override PhysicalAddress? Read(
-    ref Utf8JsonReader reader,
-    Type typeToConvert,
-    JsonSerializerOptions options
-  )
-  {
-    var str = reader.GetString();
-
-    if (str is null)
-      return null;
-
-#if SYSTEM_NET_NETWORKINFORMATION_PHYSICALADDRESS_TRYPARSE
-    return PhysicalAddress.TryParse(str, out var ret)
-      ? ret
-      : null;
-#else
-    try {
-      return PhysicalAddress.Parse(str);
-    }
-    catch (FormatException) {
-      return null;
-    }
-#endif
-  }
-
-  public override void Write(
-    Utf8JsonWriter writer,
-    PhysicalAddress value,
-    JsonSerializerOptions options
-  )
-    => throw new NotImplementedException();
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/TimeSpanInMinutesJsonConverter.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/TimeSpanInMinutesJsonConverter.cs
deleted file mode 100644
index d8cf379..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/TimeSpanInMinutesJsonConverter.cs
+++ /dev/null
@@ -1,25 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Json;
-
-internal sealed class TimeSpanInMinutesJsonConverter : JsonConverter<TimeSpan?> {
-  public override TimeSpan? Read(
-    ref Utf8JsonReader reader,
-    Type typeToConvert,
-    JsonSerializerOptions options
-  )
-    => reader.TryGetInt32(out var timeDiff)
-      ? TimeSpan.FromMinutes(timeDiff)
-      : null;
-
-  public override void Write(
-    Utf8JsonWriter writer,
-    TimeSpan? value,
-    JsonSerializerOptions options
-  )
-    => throw new NotImplementedException();
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/TimeSpanInSecondsJsonConverter.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/TimeSpanInSecondsJsonConverter.cs
deleted file mode 100644
index 35f6793..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Json/TimeSpanInSecondsJsonConverter.cs
+++ /dev/null
@@ -1,25 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Json;
-
-internal sealed class TimeSpanInSecondsJsonConverter : JsonConverter<TimeSpan?> {
-  public override TimeSpan? Read(
-    ref Utf8JsonReader reader,
-    Type typeToConvert,
-    JsonSerializerOptions options
-  )
-    => reader.TryGetInt32(out var onTime)
-      ? TimeSpan.FromSeconds(onTime)
-      : null;
-
-  public override void Write(
-    Utf8JsonWriter writer,
-    TimeSpan? value,
-    JsonSerializerOptions options
-  )
-    => throw new NotImplementedException();
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Json/KasaNumericalBooleanJsonConverter.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Json/KasaNumericalBooleanJsonConverter.cs
deleted file mode 100644
index c53f246..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Json/KasaNumericalBooleanJsonConverter.cs
+++ /dev/null
@@ -1,23 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Json;
-
-internal sealed class KasaNumericalBooleanJsonConverter : JsonConverter<bool> {
-  public override bool Read(
-    ref Utf8JsonReader reader,
-    Type typeToConvert,
-    JsonSerializerOptions options
-  )
-    => reader.TryGetInt32(out var numericalBool) && numericalBool != 0;
-
-  public override void Write(
-    Utf8JsonWriter writer,
-    bool value,
-    JsonSerializerOptions options
-  )
-    => writer.WriteNumberValue(value ? 1 : 0);
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/ErrorCode.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/ErrorCode.cs
deleted file mode 100644
index 66b11c5..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/ErrorCode.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-public enum ErrorCode : int {
-  Success = 0,
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClient.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClient.cs
deleted file mode 100644
index e6c7476..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClient.cs
+++ /dev/null
@@ -1,314 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Buffers;
-using System.Net;
-using System.Net.Sockets;
-using System.Text;
-using System.Text.Json;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.Logging;
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-/// <remarks>
-/// This implementation is based on and ported from the following implementation: <see href="https://github.com/plasticrake/tplink-smarthome-api">plasticrake/tplink-smarthome-api</see>.
-/// </remarks>
-public sealed partial class KasaClient : IDisposable {
-  public const int DefaultPort = 9999;
-  internal const int DefaultBufferCapacity = 1536; // 1.5 [kB]
-  private static readonly JsonEncodedText PropertyNameForErrorCode = JsonEncodedText.Encode(
-#if LANG_VERSION_11_OR_GREATER
-    "err_code"u8
-#else
-    "err_code"
-#endif
-  );
-
-  private bool IsDisposed => endPoint is null;
-
-  private EndPoint? endPoint; // if null, it indicates a 'disposed' state.
-  private Socket? socket;
-  private readonly ILogger? logger;
-  private readonly ArrayBufferWriter<byte> buffer;
-
-  public bool IsConnected {
-    get {
-      ThrowIfDisposed();
-      return socket is not null && socket.Connected;
-    }
-  }
-
-  public EndPoint EndPoint {
-    get {
-      ThrowIfDisposed();
-      return endPoint;
-    }
-  }
-
-  internal ILogger? Logger {
-    get {
-      ThrowIfDisposed();
-      return logger;
-    }
-  }
-
-  public KasaClient(
-    EndPoint endPoint,
-    ILogger? logger = null
-  )
-    : this(
-      endPoint: endPoint ?? throw new ArgumentNullException(nameof(endPoint)),
-      buffer: new(initialCapacity: DefaultBufferCapacity),
-      logger: logger
-    )
-  {
-  }
-
-  internal KasaClient(
-    EndPoint endPoint,
-    ArrayBufferWriter<byte> buffer,
-    ILogger? logger
-  )
-  {
-    this.endPoint = endPoint switch {
-      null => throw new ArgumentNullException(nameof(endPoint)),
-      DnsEndPoint dnsEndPoint => dnsEndPoint.Port == 0
-        ? new DnsEndPoint(
-          host: dnsEndPoint.Host,
-          port: DefaultPort
-        )
-        : dnsEndPoint,
-      IPEndPoint ipEndPoint => ipEndPoint.Port == 0
-        ? new IPEndPoint(
-          address: ipEndPoint.Address,
-          port: DefaultPort
-        )
-        : ipEndPoint,
-      EndPoint ep => ep, // TODO: should throw exception?
-    };
-
-    this.buffer = buffer;
-    this.logger = logger;
-    this.logger?.LogTrace("Device end point: {DeviceEndPoint} ({DeviceEndPointAddressFamily})", endPoint, endPoint.AddressFamily);
-  }
-
-  private void Dispose(bool disposing)
-  {
-    if (!disposing)
-      return;
-
-    endPoint = null;
-
-    socket?.Dispose();
-    socket = null;
-  }
-
-  public void Dispose()
-  {
-    Dispose(true);
-    GC.SuppressFinalize(this);
-  }
-
-  private void ThrowIfDisposed()
-  {
-    if (IsDisposed)
-      throw new ObjectDisposedException(GetType().FullName);
-  }
-
-  private async ValueTask<Socket> ConnectAsync(
-    CancellationToken cancellationToken
-  )
-  {
-    var s = new Socket(endPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
-
-    try {
-      logger?.LogDebug("Connecting");
-
-      await s.ConnectAsync(
-        remoteEP: endPoint
-        // TODO: cancellationToken
-      ).ConfigureAwait(false);
-
-      logger?.LogDebug("Connected");
-
-      return s;
-    }
-    catch (Exception ex) {
-      s.Dispose();
-
-      if (ex is SocketException exSocket)
-        logger?.LogError(ex, "Connection failed (NativeErrorCode = {NativeErrorCode})", exSocket.NativeErrorCode);
-      else
-        logger?.LogCritical(ex, "Connection failed with unexpected exception");
-      throw;
-    }
-  }
-
-  public ValueTask<TMethodResult> SendAsync<TMethodParameter, TMethodResult>(
-    JsonEncodedText module,
-    JsonEncodedText method,
-    TMethodParameter parameter,
-    Func<JsonElement, TMethodResult> composeResult,
-    CancellationToken cancellationToken = default
-  )
-  {
-    if (parameter is null)
-      throw new ArgumentNullException(nameof(parameter));
-    if (composeResult is null)
-      throw new ArgumentNullException(nameof(composeResult));
-
-    ThrowIfDisposed();
-
-    return SendAsyncCore(
-      module: module,
-      method: method,
-      parameter: parameter,
-      composeResult: composeResult,
-      cancellationToken: cancellationToken
-    );
-  }
-
-  private async ValueTask<TMethodResult> SendAsyncCore<TMethodParameter, TMethodResult>(
-    JsonEncodedText module,
-    JsonEncodedText method,
-    TMethodParameter parameter,
-    Func<JsonElement, TMethodResult> composeResult,
-    CancellationToken cancellationToken = default
-  )
-  {
-    if (socket is null) {
-      // ensure socket created and connected
-      socket = await ConnectAsync(cancellationToken);
-
-      // clear buffer for the initial use
-      buffer.Clear();
-    }
-
-    /*
-     * send
-     */
-    try {
-      const SocketFlags sendSocketFlags = default;
-
-      KasaJsonSerializer.Serialize(buffer, module, method, parameter, logger);
-
-      logger?.LogTrace("Sending request {RequestSize} bytes", buffer.WrittenCount);
-
-      try {
-        await socket.SendAsync(
-          buffer.WrittenMemory,
-          sendSocketFlags,
-          cancellationToken: cancellationToken
-        ).ConfigureAwait(false);
-      }
-      catch (SocketException ex) when (
-        ex.SocketErrorCode is
-          SocketError.Shutdown or // EPIPE
-          SocketError.ConnectionReset or // ECONNRESET
-          SocketError.ConnectionAborted // WSAECONNABORTED
-      ) {
-        throw new KasaDisconnectedException(ex.Message, endPoint, ex);
-      }
-    }
-    finally {
-      buffer.Clear(); // clear buffer state for next use
-    }
-
-    /*
-    * receive
-    */
-    try {
-      const SocketFlags receiveSocketFlags = default;
-      const int receiveBlockSize = 0x100;
-
-      for (; ;) {
-        var buf = buffer.GetMemory(receiveBlockSize);
-
-        int len = default;
-
-        try {
-          len = await socket.ReceiveAsync(
-            buf,
-            receiveSocketFlags,
-            cancellationToken: cancellationToken
-          ).ConfigureAwait(false);
-        }
-        catch (SocketException ex) when (
-          ex.SocketErrorCode is
-            SocketError.ConnectionReset // ECONNRESET
-        ) {
-          throw new KasaDisconnectedException(ex.Message, endPoint, ex);
-        }
-
-        if (len <= 0)
-          break;
-
-        buffer.Advance(len);
-
-        if (len < buf.Length)
-          break;
-      }
-
-      if (buffer.WrittenCount == 0)
-        throw new KasaDisconnectedException("The peer may have dropped connection", endPoint, innerException: null);
-
-      logger?.LogTrace("Received response {ResponseSize} bytes", buffer.WrittenCount);
-      logger?.LogTrace("Buffer capacity: {Capacity} bytes", buffer.Capacity);
-
-      JsonElement result = default;
-
-      try {
-        result = KasaJsonSerializer.Deserialize(buffer, module, method, logger);
-      }
-      catch (KasaMessageBodyTooShortException ex) {
-        throw new KasaIncompleteResponseException(
-          message: "Received incomplete response: " + ex.Message,
-          deviceEndPoint: endPoint,
-          requestModule: Encoding.UTF8.GetString(module.EncodedUtf8Bytes),
-          requestMethod: Encoding.UTF8.GetString(method.EncodedUtf8Bytes),
-          innerException: ex
-        );
-      }
-      catch (KasaMessageException ex) {
-        throw new KasaUnexpectedResponseException(
-          message: "Received unexpected or invalid response",
-          deviceEndPoint: endPoint,
-          requestModule: Encoding.UTF8.GetString(module.EncodedUtf8Bytes),
-          requestMethod: Encoding.UTF8.GetString(method.EncodedUtf8Bytes),
-          innerException: ex
-        );
-      }
-
-      if (
-        result.TryGetProperty(PropertyNameForErrorCode.EncodedUtf8Bytes, out var propErrorCode) &&
-        propErrorCode.TryGetInt32(out var errorCode) &&
-        errorCode != 0
-      ) {
-        throw new KasaErrorResponseException(
-          deviceEndPoint: endPoint,
-          requestModule: Encoding.UTF8.GetString(module.EncodedUtf8Bytes),
-          requestMethod: Encoding.UTF8.GetString(method.EncodedUtf8Bytes),
-          errorCode: (ErrorCode)errorCode
-        );
-      }
-
-      try {
-        return composeResult(result);
-      }
-      catch (Exception ex) {
-        throw new KasaUnexpectedResponseException(
-          message: "Unexpected method result: " + JsonSerializer.Serialize(result),
-          deviceEndPoint: endPoint,
-          requestModule: Encoding.UTF8.GetString(module.EncodedUtf8Bytes),
-          requestMethod: Encoding.UTF8.GetString(method.EncodedUtf8Bytes),
-          ex
-        );
-      }
-    }
-    finally {
-      buffer.Clear(); // clear buffer state for next use
-    }
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClientDefaultExceptionHandler.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClientDefaultExceptionHandler.cs
deleted file mode 100644
index 0e3ee1b..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClientDefaultExceptionHandler.cs
+++ /dev/null
@@ -1,77 +0,0 @@
-using System;
-using System.Net.Sockets;
-using Microsoft.Extensions.Logging;
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-internal class KasaClientDefaultExceptionHandler : KasaClientExceptionHandler {
-  public override KasaClientExceptionHandling DetermineHandling(
-    KasaDevice device,
-    Exception exception,
-    int attempt,
-    ILogger? logger
-  )
-  {
-    switch (exception) {
-      case SocketException socketException: {
-        var socketErrorCode = socketException.SocketErrorCode;
-
-        if (
-          socketErrorCode is
-            SocketError.ConnectionRefused or // ECONNREFUSED
-            SocketError.HostUnreachable or // EHOSTUNREACH
-            SocketError.NetworkUnreachable // ENETUNREACH
-        ) {
-          if (attempt == 0 /* retry just once */) {
-            // The end point may have changed.
-            logger?.LogInformation($"Endpoint may have changed ({nameof(SocketError)}: {(int)socketErrorCode} {socketErrorCode})");
-
-            return KasaClientExceptionHandling.InvalidateEndPointAndRetry;
-          }
-          else {
-            logger?.LogError($"Endpoint unreachable ({nameof(SocketError)}: {(int)socketErrorCode} {socketErrorCode})");
-
-            return KasaClientExceptionHandling.InvalidateEndPointAndThrow;
-          }
-        }
-
-        // The client may have been invalid due to an exception at the transport layer.
-        logger?.LogError(socketException, $"Unexpected socket exception ({nameof(SocketError)}: {(int)socketErrorCode} {socketErrorCode})");
-
-        return KasaClientExceptionHandling.Throw;
-      }
-
-      case KasaDisconnectedException disconnectedException:
-        if (attempt == 0) { // retry just once
-          // The peer device disconnected the connection, or may have dropped the connection.
-          if (disconnectedException.InnerException is SocketException innerSocketException)
-            logger?.LogDebug($"Disconnected ({nameof(SocketError)}: {(int)innerSocketException.SocketErrorCode} {innerSocketException.SocketErrorCode})");
-          else
-            logger?.LogDebug($"Disconnected ({disconnectedException.Message})");
-
-          return KasaClientExceptionHandling.RetryAfterReconnect;
-        }
-
-        return KasaClientExceptionHandling.Throw;
-
-      case KasaIncompleteResponseException ex:
-        // The peer has been in invalid state(?) and returnd incomplete response.
-        const int maxRetryIncompleteResponse = 3;
-        var nextAttempt = attempt + 1;
-
-        if (nextAttempt < maxRetryIncompleteResponse) { // retry up to max attempts
-          logger?.LogWarning(ex.Message);
-          return KasaClientExceptionHandling.CreateRetry(
-            retryAfter: TimeSpan.FromSeconds(2.0),
-            shouldReconnect: true
-          );
-        }
-
-        return KasaClientExceptionHandling.Throw;
-
-      default:
-        logger?.LogError(exception, $"Unhandled exception ({exception.GetType().FullName})");
-        return KasaClientExceptionHandling.Throw;
-    }
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClientExceptionHandler.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClientExceptionHandler.cs
deleted file mode 100644
index 274f0d6..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClientExceptionHandler.cs
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using Microsoft.Extensions.Logging;
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-public abstract class KasaClientExceptionHandler {
-  protected internal static readonly KasaClientExceptionHandler Default = new KasaClientDefaultExceptionHandler();
-
-  public abstract KasaClientExceptionHandling DetermineHandling(
-    KasaDevice device,
-    Exception exception,
-    int attempt,
-    ILogger? logger
-  );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClientExceptionHandling.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClientExceptionHandling.cs
deleted file mode 100644
index 2415c4f..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaClientExceptionHandling.cs
+++ /dev/null
@@ -1,31 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-public readonly struct KasaClientExceptionHandling {
-  public static readonly KasaClientExceptionHandling Throw = default;
-  public static readonly KasaClientExceptionHandling InvalidateEndPointAndThrow = new() { ShouldInvalidateEndPoint = true };
-
-  public static readonly KasaClientExceptionHandling Retry = new() { ShouldRetry = true };
-  public static readonly KasaClientExceptionHandling RetryAfterReconnect = new() { ShouldRetry = true, ShouldReconnect = true };
-  public static readonly KasaClientExceptionHandling InvalidateEndPointAndRetry = new() { ShouldRetry = true, ShouldInvalidateEndPoint = true, };
-
-  public static KasaClientExceptionHandling CreateRetry(
-    TimeSpan retryAfter,
-    bool shouldReconnect = false
-  )
-    => new() {
-      ShouldRetry = true,
-      RetryAfter = retryAfter,
-      ShouldReconnect = shouldReconnect,
-    };
-
-  public bool ShouldRetry { get; init; }
-  public TimeSpan RetryAfter { get; init; }
-  public bool ShouldReconnect { get; init; }
-  public bool ShouldInvalidateEndPoint { get; init; }
-
-  public override string ToString() => $"{{{nameof(ShouldRetry)}={ShouldRetry}, {nameof(RetryAfter)}={RetryAfter}, {nameof(ShouldReconnect)}={ShouldReconnect}, {nameof(ShouldInvalidateEndPoint)}={ShouldInvalidateEndPoint}}}";
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaJsonSerializer.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaJsonSerializer.cs
deleted file mode 100644
index ffd4c5a..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaJsonSerializer.cs
+++ /dev/null
@@ -1,136 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Buffers;
-using System.Buffers.Binary;
-using System.Runtime.InteropServices;
-using System.Text;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using Microsoft.Extensions.Logging;
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-/// <remarks>
-/// This implementation is based on and ported from the following implementation: <see href="https://github.com/plasticrake/tplink-smarthome-api">plasticrake/tplink-smarthome-api</see>.
-/// </remarks>
-public static class KasaJsonSerializer {
-  public const byte InitialKey = 0xAB;
-  private const int SizeOfHeaderInBytes = 4;
-
-  private static readonly JsonSerializerOptions serializerOptions = new() {
-    DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
-  };
-
-  public static void Serialize<TMethodParameter>(
-    ArrayBufferWriter<byte> buffer,
-    JsonEncodedText module,
-    JsonEncodedText method,
-    TMethodParameter? parameter,
-    ILogger? logger = null
-  )
-  {
-    if (buffer is null)
-      throw new ArgumentNullException(nameof(buffer));
-
-    // reserve placeholder for header
-    buffer.GetSpan(SizeOfHeaderInBytes);
-    buffer.Advance(SizeOfHeaderInBytes);
-
-    // write json body after header placeholder
-    using var writer = new Utf8JsonWriter(buffer);
-
-    writer.WriteStartObject();
-    writer.WriteStartObject(module);
-    writer.WritePropertyName(method);
-
-    JsonSerializer.Serialize(
-      writer,
-      parameter,
-      options: serializerOptions
-    );
-
-    writer.WriteEndObject(); // method
-    writer.WriteEndObject(); // module
-    writer.Flush();
-
-    if (!MemoryMarshal.TryGetArray(buffer.WrittenMemory, out var writtenArraySegment))
-      throw new NotSupportedException("cannot get underlying array segment");
-
-    // write header
-    BinaryPrimitives.WriteInt32BigEndian(
-      writtenArraySegment.AsSpan(0, SizeOfHeaderInBytes),
-      (int)writer.BytesCommitted
-    );
-
-    logger?.LogTrace(
-      "Request: {Request}",
-      Encoding.UTF8.GetString(writtenArraySegment.AsSpan(SizeOfHeaderInBytes))
-    );
-
-    // encrypt body
-    EncryptInPlace(writtenArraySegment.AsSpan(SizeOfHeaderInBytes));
-  }
-
-  public static void EncryptInPlace(Span<byte> body)
-  {
-    var key = InitialKey;
-
-    for (var i = 0; i < body.Length; i++) {
-      key = body[i] = (byte)(body[i] ^ key);
-    }
-  }
-
-  public static JsonElement Deserialize(
-    ArrayBufferWriter<byte> buffer,
-    JsonEncodedText module,
-    JsonEncodedText method,
-    ILogger? logger = null
-  )
-  {
-    if (buffer is null)
-      throw new ArgumentNullException(nameof(buffer));
-
-    var buf = buffer.WrittenMemory;
-
-    if (buf.Length < 4)
-      throw new KasaMessageHeaderTooShortException($"input too short (expects at least 4 bytes of header but was {buf.Length})");
-
-    var length = BinaryPrimitives.ReadInt32BigEndian(buf.Slice(0, 4).Span);
-    var body = buf.Slice(4);
-
-    if (body.Length < length)
-      throw new KasaMessageBodyTooShortException(indicatedLength: length, actualLength: body.Length);
-
-    body = body.Slice(0, length);
-
-    if (!MemoryMarshal.TryGetArray(body, out var bodyArraySegment))
-      throw new NotSupportedException("cannot get underlying array segment");
-
-    DecryptInPlace(bodyArraySegment.AsSpan());
-
-    logger?.LogTrace(
-      "Response: {Response}",
-      Encoding.UTF8.GetString(bodyArraySegment.AsSpan())
-    );
-
-    var doc = JsonDocument.Parse(bodyArraySegment.AsMemory());
-
-    if (!doc.RootElement.TryGetProperty(module.EncodedUtf8Bytes, out var propModule))
-      throw new KasaMessageException($"The response JSON does not contain the expected property for the module '{module}'.");
-
-    if (!propModule.TryGetProperty(method.EncodedUtf8Bytes, out var propMethod))
-      throw new KasaMessageException($"The response JSON does not contain the expected property for the method '{method}'.");
-
-    return propMethod;
-  }
-
-  public static void DecryptInPlace(Span<byte> body)
-  {
-    var key = InitialKey;
-
-    for (var i = 0; i < body.Length; i++) {
-      (key, body[i]) = (body[i], (byte)(body[i] ^ key));
-    }
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaMessageBodyTooShortException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaMessageBodyTooShortException.cs
deleted file mode 100644
index 880307d..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaMessageBodyTooShortException.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-public class KasaMessageBodyTooShortException : KasaMessageException {
-  public int IndicatedLength { get; }
-  public int ActualLength { get; }
-
-  public KasaMessageBodyTooShortException(
-    int indicatedLength,
-    int actualLength
-  )
-    : base(
-      message: $"length of body is {actualLength} bytes but falls short of {indicatedLength} bytes which is indicated in the header."
-    )
-  {
-    IndicatedLength = indicatedLength;
-    ActualLength = actualLength;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaMessageException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaMessageException.cs
deleted file mode 100644
index 405ff02..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaMessageException.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-public class KasaMessageException : SystemException {
-  public KasaMessageException(string message)
-    : base(message: message)
-  {
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaMessageHeaderTooShortException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaMessageHeaderTooShortException.cs
deleted file mode 100644
index 4b2ea5d..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa.Protocol/KasaMessageHeaderTooShortException.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-public class KasaMessageHeaderTooShortException : KasaMessageException {
-  public KasaMessageHeaderTooShortException(string message)
-    : base(message: message)
-  {
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/HS105.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/HS105.cs
deleted file mode 100644
index 48f11cb..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/HS105.cs
+++ /dev/null
@@ -1,145 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-using Smdn.TPSmartHomeDevices.Kasa.Json;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public class HS105 : KasaDevice {
-  private static readonly JsonEncodedText MethodTextSetRelayState = JsonEncodedText.Encode(
-#if LANG_VERSION_11_OR_GREATER
-    "set_relay_state"u8
-#else
-    "set_relay_state"
-#endif
-  );
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="HS105"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <inheritdoc cref="KasaDevice(string, IServiceProvider?)" />
-  public HS105(
-    string host,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      host: host,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="HS105"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <inheritdoc cref="KasaDevice(IPAddress, IServiceProvider?)" />
-  public HS105(
-    IPAddress ipAddress,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      ipAddress: ipAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="HS105"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <inheritdoc cref="KasaDevice(PhysicalAddress, IServiceProvider)" />
-  public HS105(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      macAddress: macAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="HS105"/> class.
-  /// </summary>
-  /// <inheritdoc cref="KasaDevice(IDeviceEndPointProvider, IServiceProvider?)" />
-  public HS105(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      deviceEndPointProvider: deviceEndPointProvider,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  private readonly struct SetRelayStateParameter {
-    public static readonly SetRelayStateParameter SetOff = new(false);
-    public static readonly SetRelayStateParameter SetOn = new(true);
-
-    [JsonPropertyName("state")]
-    [JsonConverter(typeof(KasaNumericalBooleanJsonConverter))]
-    public bool State { get; }
-
-    public SetRelayStateParameter(bool state)
-    {
-      State = state;
-    }
-  }
-
-  public ValueTask TurnOnAsync(CancellationToken cancellationToken = default)
-    => SendRequestAsync(
-      module: ModuleTextSystem,
-      method: MethodTextSetRelayState,
-      parameters: SetRelayStateParameter.SetOn,
-      cancellationToken: cancellationToken
-    );
-
-  public ValueTask TurnOffAsync(CancellationToken cancellationToken = default)
-    => SendRequestAsync(
-      module: ModuleTextSystem,
-      method: MethodTextSetRelayState,
-      parameters: SetRelayStateParameter.SetOff,
-      cancellationToken: cancellationToken
-    );
-
-  /// <summary>
-  /// Sets the on/off state of the device according to the parameter <paramref name="newOnOffState" />.
-  /// </summary>
-  /// <param name="newOnOffState">
-  /// The value that indicates new on/off state to be set. <see langword="true"/> for on, otherwise off.
-  /// </param>
-  public ValueTask SetOnOffStateAsync(
-    bool newOnOffState,
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync(
-      module: ModuleTextSystem,
-      method: MethodTextSetRelayState,
-      parameters: newOnOffState ? SetRelayStateParameter.SetOn : SetRelayStateParameter.SetOff,
-      cancellationToken: cancellationToken
-    );
-
-  private readonly struct GetSysInfoRelayStateParameter {
-    [JsonPropertyName("relay_state")]
-    [JsonConverter(typeof(KasaNumericalBooleanJsonConverter))]
-    public bool RelayState { get; init; }
-  }
-
-  public ValueTask<bool> GetOnOffStateAsync(
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync(
-      module: ModuleTextSystem,
-      method: MethodTextGetSysInfo,
-      composeResult: static result => JsonSerializer.Deserialize<GetSysInfoRelayStateParameter>(result).RelayState,
-      cancellationToken: cancellationToken
-    );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KL130.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KL130.cs
deleted file mode 100644
index 949f691..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KL130.cs
+++ /dev/null
@@ -1,273 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-using Smdn.TPSmartHomeDevices.Kasa.Json;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public class KL130 : KasaDevice {
-  private static readonly JsonEncodedText ModuleTextLightingService = JsonEncodedText.Encode(
-#if LANG_VERSION_11_OR_GREATER
-    "smartlife.iot.smartbulb.lightingservice"u8
-#else
-    "smartlife.iot.smartbulb.lightingservice"
-#endif
-  );
-  private static readonly JsonEncodedText MethodTextTransitionLightState = JsonEncodedText.Encode(
-#if LANG_VERSION_11_OR_GREATER
-    "transition_light_state"u8
-#else
-    "transition_light_state"
-#endif
-  );
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="KL130"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <inheritdoc cref="KasaDevice(string, IServiceProvider?)" />
-  public KL130(
-    string host,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      host: host,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="KL130"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <inheritdoc cref="KasaDevice(IPAddress, IServiceProvider?)" />
-  public KL130(
-    IPAddress ipAddress,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      ipAddress: ipAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="KL130"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <inheritdoc cref="KasaDevice(PhysicalAddress, IServiceProvider)" />
-  public KL130(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      macAddress: macAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="KL130"/> class.
-  /// </summary>
-  /// <inheritdoc cref="KasaDevice(IDeviceEndPointProvider, IServiceProvider?)" />
-  public KL130(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      deviceEndPointProvider: deviceEndPointProvider,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  private static TimeSpan ValidateTransitionPeriod(TimeSpan? value, string paramName)
-  {
-    if (value == null)
-      return TimeSpan.Zero;
-
-    if (value.Value < TimeSpan.Zero)
-      throw new ArgumentOutOfRangeException(paramName: paramName, actualValue: value, message: "The value for transition period must be zero or positive value.");
-
-    return value.Value;
-  }
-
-  private readonly record struct SetOnOffStateParameter(
-    [property: JsonPropertyName("on_off")]
-    [property: JsonConverter(typeof(KasaNumericalBooleanJsonConverter))]
-    bool OnOff,
-    [property: JsonPropertyName("transition_period")]
-    int TransitionPeriodInMilliseconds
-  ) {
-    [JsonPropertyName("ignore_default")]
-    public int IgnoreDefault => 0; // turn on/off with the default configuration
-  }
-
-  public ValueTask TurnOnAsync(
-    TimeSpan? transitionPeriod = null,
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync(
-      module: ModuleTextLightingService,
-      method: MethodTextTransitionLightState,
-      parameters: new SetOnOffStateParameter(
-        OnOff: true, // on
-        TransitionPeriodInMilliseconds: (int)ValidateTransitionPeriod(transitionPeriod, nameof(transitionPeriod)).TotalMilliseconds
-      ),
-      cancellationToken: cancellationToken
-    );
-
-  public ValueTask TurnOffAsync(
-    TimeSpan? transitionPeriod = null,
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync(
-      module: ModuleTextLightingService,
-      method: MethodTextTransitionLightState,
-      parameters: new SetOnOffStateParameter(
-        OnOff: false, // off
-        TransitionPeriodInMilliseconds: (int)ValidateTransitionPeriod(transitionPeriod, nameof(transitionPeriod)).TotalMilliseconds
-      ),
-      cancellationToken: cancellationToken
-    );
-
-  /// <summary>
-  /// Sets the on/off state of the device according to the parameter <paramref name="newOnOffState" />.
-  /// </summary>
-  /// <param name="newOnOffState">
-  /// The value that indicates new on/off state to be set. <see langword="true"/> for on, otherwise off.
-  /// </param>
-  public ValueTask SetOnOffStateAsync(
-    bool newOnOffState,
-    TimeSpan? transitionPeriod = null,
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync(
-      module: ModuleTextLightingService,
-      method: MethodTextTransitionLightState,
-      parameters: new SetOnOffStateParameter(
-        OnOff: newOnOffState,
-        TransitionPeriodInMilliseconds: (int)ValidateTransitionPeriod(transitionPeriod, nameof(transitionPeriod)).TotalMilliseconds
-      ),
-      cancellationToken: cancellationToken
-    );
-
-  private readonly struct GetSysInfoLightStateParameter {
-    [JsonPropertyName("light_state")]
-    public KL130LightState LightState { get; init; }
-  }
-
-  public ValueTask<KL130LightState> GetLightStateAsync(
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync(
-      module: ModuleTextSystem,
-      method: MethodTextGetSysInfo,
-      composeResult: static result => JsonSerializer.Deserialize<GetSysInfoLightStateParameter>(result).LightState,
-      cancellationToken: cancellationToken
-    );
-
-  public ValueTask<bool> GetOnOffStateAsync(
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync(
-      module: ModuleTextSystem,
-      method: MethodTextGetSysInfo,
-      composeResult: static result => JsonSerializer.Deserialize<GetSysInfoLightStateParameter>(result).LightState.IsOn,
-      cancellationToken: cancellationToken
-    );
-
-  private readonly record struct SetColorTemperatureParameter(
-    [property: JsonPropertyName("color_temp")]
-    int ColorTemperature,
-    [property: JsonPropertyName("brightness")]
-    int? Brightness,
-    [property: JsonPropertyName("transition_period")]
-    int TransitionPeriodInMilliseconds
-  ) {
-    [JsonPropertyName("on_off")]
-    [JsonConverter(typeof(KasaNumericalBooleanJsonConverter))]
-    public bool OnOff => true; // on
-
-    [JsonPropertyName("ignore_default")]
-    public int IgnoreDefault => 1; // ignore the default configuration
-  }
-
-  /// <param name="colorTemperature">
-  /// The color temperature in kelvin, in range of 2500~9000[K].
-  /// </param>
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%]. If <see langword="null"/>, the current brightness will be kept.
-  /// </param>
-  public ValueTask SetColorTemperatureAsync(
-    int colorTemperature,
-    int? brightness = null,
-    TimeSpan? transitionPeriod = null,
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync(
-      module: ModuleTextLightingService,
-      method: MethodTextTransitionLightState,
-      new SetColorTemperatureParameter(
-        ColorTemperature: colorTemperature, // TODO: validation
-        Brightness: brightness, // TODO: validation
-        TransitionPeriodInMilliseconds: (int)ValidateTransitionPeriod(transitionPeriod, nameof(transitionPeriod)).TotalMilliseconds
-      ),
-      cancellationToken
-    );
-
-  private readonly record struct SetColorParameter(
-    [property: JsonPropertyName("hue")]
-    int? Hue,
-    [property: JsonPropertyName("saturation")]
-    int? Saturation,
-    [property: JsonPropertyName("brightness")]
-    int? Brightness,
-    [property: JsonPropertyName("transition_period")]
-    int TransitionPeriodInMilliseconds
-  ) {
-    [JsonPropertyName("color_temp")]
-    public int ColorTemperature => 0; // set color with hue and saturation
-
-    [JsonPropertyName("on_off")]
-    [JsonConverter(typeof(KasaNumericalBooleanJsonConverter))]
-    public bool OnOff => true; // on
-
-    [JsonPropertyName("ignore_default")]
-    public int IgnoreDefault => 1; // ignore the default configuration
-  }
-
-  /// <param name="hue">
-  /// The hue of the color in degree, in range of 0~360[°].
-  /// </param>
-  /// <param name="saturation">
-  /// The saturation of the color in percent value, in range of 0~100[%].
-  /// </param>
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%]. If <see langword="null"/>, the current brightness will be kept.
-  /// </param>
-  public ValueTask SetColorAsync(
-    int hue,
-    int saturation,
-    int? brightness = null,
-    TimeSpan? transitionPeriod = null,
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync(
-      module: ModuleTextLightingService,
-      method: MethodTextTransitionLightState,
-      new SetColorParameter(
-        Hue: hue, // TODO: validation
-        Saturation: saturation, // TODO: validation
-        Brightness: brightness, // TODO: validation
-        TransitionPeriodInMilliseconds: (int)ValidateTransitionPeriod(transitionPeriod, nameof(transitionPeriod)).TotalMilliseconds
-      ),
-      cancellationToken
-    );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KL130LightState.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KL130LightState.cs
deleted file mode 100644
index d7cc5f6..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KL130LightState.cs
+++ /dev/null
@@ -1,55 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-#if SYSTEM_DIAGNOSTICS_CODEANALYSIS_MEMBERNOTNULLWHENATTRIBUTE
-using System.Diagnostics.CodeAnalysis;
-#endif
-using System.Text.Json.Serialization;
-using Smdn.TPSmartHomeDevices.Kasa.Json;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public readonly struct KL130LightState {
-  [JsonPropertyName("on_off")]
-  [JsonConverter(typeof(KasaNumericalBooleanJsonConverter))]
-  public bool IsOn { get; init; }
-
-  /// <summary>Gets the current mode string of the light bulb.</summary>
-  /// <value>If light is off, the value will be <see langword="null"/>.</value>
-#if SYSTEM_DIAGNOSTICS_CODEANALYSIS_MEMBERNOTNULLWHENATTRIBUTE
-  [MemberNotNullWhenAttribute(true, nameof(IsOn))]
-#endif
-  [JsonPropertyName("mode")]
-  public string? Mode { get; init; }
-
-  /// <summary>Gets the current hue value of the light bulb.</summary>
-  /// <value>If light is off, the value will be <see langword="null"/>.</value>
-#if SYSTEM_DIAGNOSTICS_CODEANALYSIS_MEMBERNOTNULLWHENATTRIBUTE
-  [MemberNotNullWhenAttribute(true, nameof(IsOn))]
-#endif
-  [JsonPropertyName("hue")]
-  public int? Hue { get; init; }
-
-  /// <summary>Gets the current saturation value of the light bulb.</summary>
-  /// <value>If light is off, the value will be <see langword="null"/>.</value>
-#if SYSTEM_DIAGNOSTICS_CODEANALYSIS_MEMBERNOTNULLWHENATTRIBUTE
-  [MemberNotNullWhenAttribute(true, nameof(IsOn))]
-#endif
-  [JsonPropertyName("saturation")]
-  public int? Saturation { get; init; }
-
-  /// <summary>Gets the current color temperature value of the light bulb.</summary>
-  /// <value>If light is off, the value will be <see langword="null"/>.</value>
-#if SYSTEM_DIAGNOSTICS_CODEANALYSIS_MEMBERNOTNULLWHENATTRIBUTE
-  [MemberNotNullWhenAttribute(true, nameof(IsOn))]
-#endif
-  [JsonPropertyName("color_temp")]
-  public int? ColorTemperature { get; init; }
-
-  /// <summary>Gets the current brightness value of the light bulb.</summary>
-  /// <value>If light is off, the value will be <see langword="null"/>.</value>
-#if SYSTEM_DIAGNOSTICS_CODEANALYSIS_MEMBERNOTNULLWHENATTRIBUTE
-  [MemberNotNullWhenAttribute(true, nameof(IsOn))]
-#endif
-  [JsonPropertyName("brightness")]
-  public int? Brightness { get; init; }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDevice.Create.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDevice.Create.cs
deleted file mode 100644
index e7e5f2e..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDevice.Create.cs
+++ /dev/null
@@ -1,51 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-#pragma warning disable IDE0040
-partial class KasaDevice {
-#pragma warning restore IDE0040
-  /// <inheritdoc cref="KasaDevice(string, IServiceProvider?)" />
-  public static KasaDevice Create(
-    string host,
-    IServiceProvider? serviceProvider = null
-  )
-    => new(
-      host: host,
-      serviceProvider: serviceProvider
-    );
-
-  /// <inheritdoc cref="KasaDevice(IPAddress, IServiceProvider?)" />
-  public static KasaDevice Create(
-    IPAddress ipAddress,
-    IServiceProvider? serviceProvider = null
-  )
-    => new(
-      ipAddress: ipAddress,
-      serviceProvider: serviceProvider
-    );
-
-  /// <inheritdoc cref="KasaDevice(PhysicalAddress, IServiceProvider)" />
-  public static KasaDevice Create(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    => new(
-      macAddress: macAddress,
-      serviceProvider: serviceProvider
-    );
-
-  /// <inheritdoc cref="KasaDevice(IDeviceEndPointProvider, IServiceProvider?)" />
-  public static KasaDevice Create(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    IServiceProvider? serviceProvider = null
-  )
-    => new(
-      deviceEndPointProvider: deviceEndPointProvider,
-      serviceProvider: serviceProvider
-    );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDevice.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDevice.cs
deleted file mode 100644
index 854662c..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDevice.cs
+++ /dev/null
@@ -1,396 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Buffers;
-#if SYSTEM_DIAGNOSTICS_UNREACHABLEEXCEPTION
-using System.Diagnostics;
-#endif
-using System.Net;
-using System.Net.NetworkInformation;
-using System.Text.Json;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
-using Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public partial class KasaDevice : IDisposable {
-  protected static readonly JsonEncodedText ModuleTextSystem = JsonEncodedText.Encode(
-#if LANG_VERSION_11_OR_GREATER
-    "system"u8
-#else
-    "system"
-#endif
-  );
-  protected static readonly JsonEncodedText MethodTextGetSysInfo = JsonEncodedText.Encode(
-#if LANG_VERSION_11_OR_GREATER
-    "get_sysinfo"u8
-#else
-    "get_sysinfo"
-#endif
-  );
-
-  protected readonly struct NullParameter { }
-
-  private IDeviceEndPointProvider? deviceEndPointProvider; // if null, it indicates a 'disposed' state.
-  protected bool IsDisposed => deviceEndPointProvider is null;
-
-  private readonly KasaClientExceptionHandler exceptionHandler;
-  private readonly ArrayBufferWriter<byte> buffer = new(initialCapacity: KasaClient.DefaultBufferCapacity);
-  private readonly IServiceProvider? serviceProvider;
-
-  private KasaClient? client;
-
-  public bool IsConnected {
-    get {
-      ThrowIfDisposed();
-      return client is not null && client.IsConnected;
-    }
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="KasaDevice"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <param name="host">
-  /// A <see cref="string"/> that holds the host name or IP address string, representing the device endpoint.
-  /// </param>
-  /// <param name="serviceProvider">
-  /// A <see cref="IServiceProvider"/>.
-  /// </param>
-  protected KasaDevice(
-    string host,
-    IServiceProvider? serviceProvider = null
-  )
-    : this(
-      deviceEndPointProvider: KasaDeviceEndPointProvider.Create(host),
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="KasaDevice"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <param name="ipAddress">
-  /// A <see cref="IPAddress"/> that holds the IP address representing the device end point.
-  /// </param>
-  /// <param name="serviceProvider">
-  /// A <see cref="IServiceProvider"/>.
-  /// </param>
-  protected KasaDevice(
-    IPAddress ipAddress,
-    IServiceProvider? serviceProvider = null
-  )
-    : this(
-      deviceEndPointProvider: KasaDeviceEndPointProvider.Create(ipAddress),
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="KasaDevice"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <param name="macAddress">
-  /// A <see cref="PhysicalAddress"/> that holds the MAC address representing the device end point.
-  /// </param>
-  /// <param name="serviceProvider">
-  /// A <see cref="IServiceProvider"/>.
-  /// <see cref="IDeviceEndPointFactory{PhysicalAddress}"/> must be registered to create an end point from the <paramref name="macAddress"/>.
-  /// </param>
-  /// <exception cref="InvalidOperationException">No service for type <see cref="IDeviceEndPointFactory{PhysicalAddress}"/> has been registered for <paramref name="serviceProvider"/>.</exception>
-  protected KasaDevice(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    : this(
-      deviceEndPointProvider: KasaDeviceEndPointProvider.Create(macAddress, serviceProvider),
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="KasaDevice"/> class.
-  /// </summary>
-  /// <param name="deviceEndPointProvider">
-  /// A <see cref="IDeviceEndPointProvider"/> that provides the device end point.
-  /// </param>
-  /// <param name="serviceProvider">
-  /// A <see cref="IServiceProvider"/>.
-  /// </param>
-  /// <exception cref="InvalidOperationException">No service for type <see cref="IDeviceEndPointFactory{PhysicalAddress}"/> has been registered for <paramref name="serviceProvider"/>.</exception>
-  /// <exception cref="ArgumentNullException">
-  /// <paramref name="deviceEndPointProvider"/> is <see langword="null"/>.
-  /// </exception>
-  protected KasaDevice(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    IServiceProvider? serviceProvider = null
-  )
-  {
-    this.deviceEndPointProvider = deviceEndPointProvider ?? throw new ArgumentNullException(nameof(deviceEndPointProvider));
-    this.serviceProvider = serviceProvider;
-
-    exceptionHandler = serviceProvider?.GetService<KasaClientExceptionHandler>() ?? KasaClientExceptionHandler.Default;
-  }
-
-  public void Dispose()
-  {
-    Dispose(true);
-    GC.SuppressFinalize(this);
-  }
-
-  protected virtual void Dispose(bool disposing)
-  {
-    if (!disposing)
-      return;
-
-    deviceEndPointProvider = null; // mark as disposed
-
-    client?.Dispose();
-    client = null;
-  }
-
-  private void ThrowIfDisposed()
-  {
-    if (IsDisposed)
-      throw new ObjectDisposedException(GetType().FullName);
-  }
-
-  public ValueTask<EndPoint> ResolveEndPointAsync(
-    CancellationToken cancellationToken = default
-  )
-  {
-    ThrowIfDisposed();
-
-    return cancellationToken.IsCancellationRequested
-      ?
-#if SYSTEM_THREADING_TASKS_VALUETASK_FROMCANCELED
-        ValueTask.FromCanceled<EndPoint>(cancellationToken)
-#else
-        ValueTaskShim.FromCanceled<EndPoint>(cancellationToken)
-#endif
-      : deviceEndPointProvider.ResolveOrThrowAsync(
-        defaultPort: KasaClient.DefaultPort,
-        cancellationToken: cancellationToken
-      );
-  }
-
-  protected ValueTask SendRequestAsync<TMethodParameter>(
-    JsonEncodedText module,
-    JsonEncodedText method,
-    TMethodParameter parameters,
-    CancellationToken cancellationToken
-  )
-  {
-    if (parameters is null)
-      throw new ArgumentNullException(nameof(parameters));
-
-    ThrowIfDisposed();
-
-    return cancellationToken.IsCancellationRequested
-      ?
-#if SYSTEM_THREADING_TASKS_VALUETASK_FROMCANCELED
-        ValueTask.FromCanceled(cancellationToken)
-#else
-        ValueTaskShim.FromCanceled(cancellationToken)
-#endif
-      : SendRequestAsyncCore(
-        module: module,
-        method: method,
-        parameters: parameters,
-        cancellationToken: cancellationToken
-      );
-  }
-
-  protected ValueTask<TMethodResult> SendRequestAsync<TMethodResult>(
-    JsonEncodedText module,
-    JsonEncodedText method,
-    Func<JsonElement, TMethodResult> composeResult,
-    CancellationToken cancellationToken
-  )
-  {
-    if (composeResult is null)
-      throw new ArgumentNullException(nameof(composeResult));
-
-    ThrowIfDisposed();
-
-    return cancellationToken.IsCancellationRequested
-      ?
-#if SYSTEM_THREADING_TASKS_VALUETASK_FROMCANCELED
-        ValueTask.FromCanceled<TMethodResult>(cancellationToken)
-#else
-        ValueTaskShim.FromCanceled<TMethodResult>(cancellationToken)
-#endif
-      : SendRequestAsyncCore<NullParameter, TMethodResult>(
-        module: module,
-        method: method,
-        parameters: default,
-        composeResult: composeResult,
-        cancellationToken: cancellationToken
-      );
-  }
-
-  protected ValueTask<TMethodResult> SendRequestAsync<TMethodParameter, TMethodResult>(
-    JsonEncodedText module,
-    JsonEncodedText method,
-    TMethodParameter parameters,
-    Func<JsonElement, TMethodResult> composeResult,
-    CancellationToken cancellationToken
-  )
-  {
-    if (parameters is null)
-      throw new ArgumentNullException(nameof(parameters));
-    if (composeResult is null)
-      throw new ArgumentNullException(nameof(composeResult));
-
-    ThrowIfDisposed();
-
-    return cancellationToken.IsCancellationRequested
-      ?
-#if SYSTEM_THREADING_TASKS_VALUETASK_FROMCANCELED
-        ValueTask.FromCanceled<TMethodResult>(cancellationToken)
-#else
-        ValueTaskShim.FromCanceled<TMethodResult>(cancellationToken)
-#endif
-      : SendRequestAsyncCore(
-        module: module,
-        method: method,
-        parameters: parameters,
-        composeResult: composeResult,
-        cancellationToken: cancellationToken
-      );
-  }
-
-  private async ValueTask SendRequestAsyncCore<TMethodParameter>(
-    JsonEncodedText module,
-    JsonEncodedText method,
-    TMethodParameter parameters,
-    CancellationToken cancellationToken
-  )
-    => await SendRequestAsyncCore<TMethodParameter, None /* as an alternative to System.Void */>(
-      module: module,
-      method: method,
-      parameters: parameters,
-      composeResult: static _ => default,
-      cancellationToken: cancellationToken
-    ).ConfigureAwait(false);
-
-  private async ValueTask<TMethodResult> SendRequestAsyncCore<TMethodParameter, TMethodResult>(
-    JsonEncodedText module,
-    JsonEncodedText method,
-    TMethodParameter parameters,
-    Func<JsonElement, TMethodResult> composeResult,
-    CancellationToken cancellationToken
-  )
-  {
-    const int maxAttempts = 5;
-    var delay = TimeSpan.Zero;
-    EndPoint? endPoint = null;
-
-    for (var attempt = 0; attempt < maxAttempts; attempt++) {
-      if (TimeSpan.Zero < delay)
-        await Task.Delay(delay, cancellationToken).ConfigureAwait(false);
-
-      if (endPoint is null) {
-        endPoint = await ResolveEndPointAsync(cancellationToken).ConfigureAwait(false);
-
-        if (client is not null && !client.EndPoint.Equals(endPoint)) {
-          // endpoint has changed, recreate client with new endpoint
-          client.Logger?.LogInformation($"Endpoint has changed: {client.EndPoint} -> {endPoint}");
-          client.Dispose();
-          client = null;
-        }
-      }
-
-      cancellationToken.ThrowIfCancellationRequested();
-
-      client ??= new KasaClient(
-        endPoint: endPoint,
-        buffer: buffer,
-        logger: serviceProvider?.GetService<ILoggerFactory>()?.CreateLogger(GenerateLoggerCategoryName())
-      );
-
-      string GenerateLoggerCategoryName()
-        => deviceEndPointProvider is IDynamicDeviceEndPointProvider
-          ? $"{nameof(KasaClient)}({endPoint}, {deviceEndPointProvider})"
-          : $"{nameof(KasaClient)}({endPoint})";
-
-      try {
-        return await client.SendAsync(
-          module: module,
-          method: method,
-          parameter: parameters,
-          composeResult: composeResult,
-          cancellationToken: cancellationToken
-        ).ConfigureAwait(false);
-      }
-      catch (Exception ex) {
-        // OperationCanceledException and TaskCanceledException due to a cancel
-        // request triggered by a given CancellationToken must not be handled
-        // by exception handler, just rethrow instead.
-        var handling = (
-          ex is OperationCanceledException exOperationCanceled &&
-          exOperationCanceled.CancellationToken.Equals(cancellationToken)
-        )
-          ? KasaClientExceptionHandling.Throw
-          : exceptionHandler.DetermineHandling(this, ex, attempt, client.Logger);
-
-        static void LogRequest(ILogger logger, JsonEncodedText mod, JsonEncodedText meth, TMethodParameter param)
-          => logger.LogError($"{{{mod}:{{{meth}:{{{JsonSerializer.Serialize(param)}}}}}}}");
-
-        client.Logger?.LogTrace(
-          "Exception handling for {TypeOfException}: {ExceptionHandling}",
-          ex.GetType().FullName,
-          handling
-        );
-
-        if (client.Logger is not null && !handling.ShouldRetry)
-          LogRequest(client.Logger, module, method, parameters);
-
-        if (handling.ShouldInvalidateEndPoint) {
-          if (deviceEndPointProvider is IDynamicDeviceEndPointProvider dynamicEndPoint) {
-            // mark end point as invalid to have the end point refreshed or rescanned
-            dynamicEndPoint.InvalidateEndPoint();
-
-            endPoint = null; // should resolve end point
-          }
-          else {
-            // disallow retry
-            handling = handling with { ShouldRetry = false };
-          }
-        }
-
-        if (handling.ShouldRetry) {
-          /*
-           * retry
-           */
-          delay = handling.RetryAfter;
-
-          if (handling.ShouldReconnect) {
-            client.Dispose();
-            client = null;
-          }
-
-          continue;
-        }
-
-        /*
-         * rethrow
-         */
-        client.Dispose();
-        client = null;
-
-        throw;
-      } // try
-    } // for
-
-#if SYSTEM_DIAGNOSTICS_UNREACHABLEEXCEPTION
-    throw new UnreachableException();
-#else
-    throw new NotImplementedException("unreachable");
-#endif
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDeviceEndPointProvider.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDeviceEndPointProvider.cs
deleted file mode 100644
index 1c029da..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDeviceEndPointProvider.cs
+++ /dev/null
@@ -1,28 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public static class KasaDeviceEndPointProvider {
-  public static IDeviceEndPointProvider Create(string host)
-    => DeviceEndPointProvider.Create(host, KasaClient.DefaultPort);
-
-  public static IDeviceEndPointProvider Create(IPAddress ipAddress)
-    => DeviceEndPointProvider.Create(ipAddress, KasaClient.DefaultPort);
-
-  public static IDeviceEndPointProvider Create(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    => DeviceEndPointProvider.Create(macAddress, KasaClient.DefaultPort, serviceProvider);
-
-  public static IDeviceEndPointProvider Create(
-    PhysicalAddress macAddress,
-    IDeviceEndPointFactory<PhysicalAddress> endPointFactory
-  )
-    => DeviceEndPointProvider.Create(macAddress, KasaClient.DefaultPort, endPointFactory);
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDisconnectedException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDisconnectedException.cs
deleted file mode 100644
index ebd8161..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaDisconnectedException.cs
+++ /dev/null
@@ -1,21 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public class KasaDisconnectedException : KasaProtocolException {
-  public KasaDisconnectedException(
-    string message,
-    EndPoint deviceEndPoint,
-    Exception? innerException
-  )
-    : base(
-      message: message,
-      deviceEndPoint: deviceEndPoint,
-      innerException: innerException
-    )
-  {
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaErrorResponseException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaErrorResponseException.cs
deleted file mode 100644
index 0ca6785..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaErrorResponseException.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.Net;
-using Smdn.TPSmartHomeDevices.Kasa.Protocol;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public class KasaErrorResponseException : KasaUnexpectedResponseException {
-  public ErrorCode ErrorCode { get; }
-
-  public KasaErrorResponseException(
-    EndPoint deviceEndPoint,
-    string requestModule,
-    string requestMethod,
-    ErrorCode errorCode
-  )
-    : base(
-      message: $"Request '{requestModule}:{requestMethod}' failed with error code {(int)errorCode}. (Device end point: {deviceEndPoint})",
-      deviceEndPoint: deviceEndPoint,
-      requestModule: requestModule,
-      requestMethod: requestMethod,
-      innerException: null
-    )
-  {
-    ErrorCode = errorCode;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaIncompleteResponseException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaIncompleteResponseException.cs
deleted file mode 100644
index 954aa05..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaIncompleteResponseException.cs
+++ /dev/null
@@ -1,25 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public class KasaIncompleteResponseException : KasaUnexpectedResponseException {
-  public KasaIncompleteResponseException(
-    string message,
-    EndPoint deviceEndPoint,
-    string requestModule,
-    string requestMethod,
-    Exception? innerException
-  )
-    : base(
-      message: message,
-      deviceEndPoint: deviceEndPoint,
-      requestModule: requestModule,
-      requestMethod: requestMethod,
-      innerException: innerException
-    )
-  {
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaProtocolException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaProtocolException.cs
deleted file mode 100644
index a0e4b91..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaProtocolException.cs
+++ /dev/null
@@ -1,23 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public abstract class KasaProtocolException : InvalidOperationException {
-  public EndPoint DeviceEndPoint { get; }
-
-  protected KasaProtocolException(
-    string message,
-    EndPoint deviceEndPoint,
-    Exception? innerException
-  )
-    : base(
-      message: message,
-      innerException: innerException
-    )
-  {
-    DeviceEndPoint = deviceEndPoint;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaUnexpectedResponseException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaUnexpectedResponseException.cs
deleted file mode 100644
index c3d54f4..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Kasa/KasaUnexpectedResponseException.cs
+++ /dev/null
@@ -1,28 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-
-namespace Smdn.TPSmartHomeDevices.Kasa;
-
-public class KasaUnexpectedResponseException : KasaProtocolException {
-  public string RequestModule { get; }
-  public string RequestMethod { get; }
-
-  public KasaUnexpectedResponseException(
-    string message,
-    EndPoint deviceEndPoint,
-    string requestModule,
-    string requestMethod,
-    Exception? innerException
-  )
-    : base(
-      message: message,
-      deviceEndPoint: deviceEndPoint,
-      innerException: innerException
-    )
-  {
-    RequestModule = requestModule;
-    RequestMethod = requestMethod;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/ITapoCredential.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/ITapoCredential.cs
deleted file mode 100644
index cb398bd..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/ITapoCredential.cs
+++ /dev/null
@@ -1,11 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Text.Json;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-public interface ITapoCredential : IDisposable {
-  void WritePasswordPropertyValue(Utf8JsonWriter writer);
-  void WriteUsernamePropertyValue(Utf8JsonWriter writer);
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/ITapoCredentialIdentity.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/ITapoCredentialIdentity.cs
deleted file mode 100644
index 224a5fd..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/ITapoCredentialIdentity.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-public interface ITapoCredentialIdentity {
-  string Name { get; }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/ITapoCredentialProvider.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/ITapoCredentialProvider.cs
deleted file mode 100644
index d4707cf..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/ITapoCredentialProvider.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-public interface ITapoCredentialProvider {
-  ITapoCredential GetCredential(ITapoCredentialIdentity? identity);
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/TapoCredentialUtils.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/TapoCredentialUtils.cs
deleted file mode 100644
index 9f42fbf..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Credentials/TapoCredentialUtils.cs
+++ /dev/null
@@ -1,121 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Buffers;
-using System.Security.Cryptography;
-using System.Text;
-using Smdn.Formats;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-/// <remarks>
-/// This implementation is based on and ported from the following implementation: <see href="https://github.com/fishbigger/TapoP100">fishbigger/TapoP100</see>.
-/// </remarks>
-public static class TapoCredentialUtils {
-#if SYSTEM_SECURITY_CRYPTOGRAPHY_SHA1_HASHSIZEINBYTES
-  private const int SHA1HashSizeInBytes = SHA1.HashSizeInBytes;
-#else
-  private const int SHA1HashSizeInBytes = 160/*bits*/ / 8;
-#endif
-  public const int HexSHA1HashSizeInBytes = SHA1HashSizeInBytes * 2; // byte array -> hex byte array
-
-  /// <summary>
-  /// Hash the string passed by the <paramref name="str"/> with SHA-1 algorithm and converts to the base64 format used for authentication of Tapo devices.
-  /// </summary>
-  /// <param name="str">The string to convert.</param>
-  /// <returns>The <see cref="string"/> containing the result of the conversion.</returns>
-  public static string ToBase64EncodedSHA1DigestString(ReadOnlySpan<char> str)
-  {
-    byte[]? bytes = null;
-
-    try {
-      // string -> UTF-8 byte array
-      var length = Encoding.UTF8.GetByteCount(str);
-
-      bytes = ArrayPool<byte>.Shared.Rent(length);
-
-      Encoding.UTF8.GetBytes(str, bytes);
-
-      // UTF-8 byte array -> hex SHA-1 hash byte array
-      Span<byte> hexSHA1Hash = stackalloc byte[HexSHA1HashSizeInBytes];
-
-      if (!TryConvertToHexSHA1Hash(bytes.AsSpan(0, length), hexSHA1Hash, out _))
-        throw new InvalidOperationException("failed to convert hex SHA-1 hash");
-
-      // hex SHA-1 hash byte array -> base64 string
-      return Convert.ToBase64String(hexSHA1Hash, Base64FormattingOptions.None);
-    }
-    finally {
-      if (bytes is not null)
-        ArrayPool<byte>.Shared.Return(bytes, clearArray: true);
-    }
-  }
-
-  /// <summary>
-  /// Attempts to convert the UTF-8 string passed by the <paramref name="input"/> to the SHA-1 hash represented in the hexadecimal format (base16).
-  /// </summary>
-  /// <param name="input">The UTF-8 string to convert.</param>
-  /// <param name="destination">The buffer to receive the converted value.</param>
-  /// <param name="bytesWritten">When this method returns, the total number of bytes written into destination.</param>
-  /// <returns><see langword="false"/> if <paramref name="destination"/> is too small to hold the calculated hash, <see langword="true"/> otherwise.</returns>
-  public static bool TryConvertToHexSHA1Hash(
-    ReadOnlySpan<byte> input,
-    Span<byte> destination,
-    out int bytesWritten
-  )
-  {
-    bytesWritten = 0;
-
-    if (destination.Length < HexSHA1HashSizeInBytes)
-      return false;
-
-    Span<byte> sha1hash = stackalloc byte[SHA1HashSizeInBytes];
-
-    try {
-#if SYSTEM_SECURITY_CRYPTOGRAPHY_SHA1_TRYHASHDATA
-      if (!SHA1.TryHashData(input, sha1hash, out var bytesWrittenSHA1))
-        return false; // destination too short
-#else
-#pragma warning disable CA5350
-      using var sha1 = SHA1.Create();
-#pragma warning restore CA5350
-
-      if (!sha1.TryComputeHash(input, sha1hash, out var bytesWrittenSHA1))
-        return false; // destination too short
-#endif
-
-      if (bytesWrittenSHA1 != SHA1HashSizeInBytes)
-        return false; // unexpected state
-
-      /*
-        * SHA-1 hash byte array -> hex byte array
-        */
-      if (!Hexadecimal.TryEncodeLowerCase(sha1hash, destination, out bytesWritten))
-        return false; // destination too short
-
-      return true;
-    }
-    finally {
-      sha1hash.Clear();
-    }
-  }
-
-  public static string ToBase64EncodedString(ReadOnlySpan<char> str)
-  {
-    byte[]? bytes = null;
-
-    try {
-      var length = Encoding.UTF8.GetByteCount(str);
-
-      bytes = ArrayPool<byte>.Shared.Rent(length);
-
-      var bytesWritten = Encoding.UTF8.GetBytes(str, bytes);
-
-      return Convert.ToBase64String(bytes.AsSpan(0, bytesWritten), Base64FormattingOptions.None);
-    }
-    finally {
-      if (bytes is not null)
-        ArrayPool<byte>.Shared.Return(bytes, clearArray: true);
-    }
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Json/TapoBase64StringJsonConverter.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Json/TapoBase64StringJsonConverter.cs
deleted file mode 100644
index 6bce9ec..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Json/TapoBase64StringJsonConverter.cs
+++ /dev/null
@@ -1,26 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Text;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Json;
-
-internal sealed class TapoBase64StringJsonConverter : JsonConverter<string?> {
-  public override string? Read(
-    ref Utf8JsonReader reader,
-    Type typeToConvert,
-    JsonSerializerOptions options
-  )
-    => reader.TryGetBytesFromBase64(out var base64) && base64 is not null
-      ? Encoding.UTF8.GetString(base64)
-      : null;
-
-  public override void Write(
-    Utf8JsonWriter writer,
-    string? value,
-    JsonSerializerOptions options
-  )
-    => throw new NotImplementedException();
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Json/TapoIPAddressJsonConverter.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Json/TapoIPAddressJsonConverter.cs
deleted file mode 100644
index efed510..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Json/TapoIPAddressJsonConverter.cs
+++ /dev/null
@@ -1,33 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Json;
-
-internal sealed class TapoIPAddressJsonConverter : JsonConverter<IPAddress> {
-  public override IPAddress? Read(
-    ref Utf8JsonReader reader,
-    Type typeToConvert,
-    JsonSerializerOptions options
-  )
-  {
-    var str = reader.GetString();
-
-    if (str is null)
-      return null;
-
-    return IPAddress.TryParse(str, out var ret)
-      ? ret
-      : null;
-  }
-
-  public override void Write(
-    Utf8JsonWriter writer,
-    IPAddress value,
-    JsonSerializerOptions options
-  )
-    => throw new NotImplementedException();
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ErrorCode.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ErrorCode.cs
deleted file mode 100644
index d2f8e0a..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ErrorCode.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public enum ErrorCode {
-  Success = 0,
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/GetDeviceInfoRequest.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/GetDeviceInfoRequest.cs
deleted file mode 100644
index bbc8544..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/GetDeviceInfoRequest.cs
+++ /dev/null
@@ -1,16 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct GetDeviceInfoRequest : ITapoPassThroughRequest {
-  [JsonPropertyName("method")]
-  [JsonPropertyOrder(0)]
-  public string Method => "get_device_info";
-
-#pragma warning disable CA1822
-  [JsonPropertyName("requestTimeMils")]
-  public long RequestTimeMilliseconds => 0L; // DateTimeOffset.Now.ToUnixTimeMilliseconds();
-#pragma warning restore CA1822
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/GetDeviceInfoResponse.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/GetDeviceInfoResponse.cs
deleted file mode 100644
index ecb2f39..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/GetDeviceInfoResponse.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-#pragma warning disable SA1313
-
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct GetDeviceInfoResponse : ITapoPassThroughResponse {
-  [JsonPropertyName("error_code")]
-  public ErrorCode ErrorCode { get; init; }
-
-  [JsonPropertyName("result")]
-  public TapoDeviceInfo Result { get; init; }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/HandshakeRequest.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/HandshakeRequest.cs
deleted file mode 100644
index 90fe240..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/HandshakeRequest.cs
+++ /dev/null
@@ -1,30 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct HandshakeRequest : ITapoRequest {
-  [JsonPropertyName("method")]
-  [JsonPropertyOrder(0)]
-  public string Method => "handshake";
-
-  [JsonPropertyName("params")]
-  public RequestParameters Parameters { get; }
-
-  public HandshakeRequest(string key)
-  {
-    Parameters = new(key);
-  }
-
-  public readonly record struct RequestParameters(
-#pragma warning disable SA1313
-    [property: JsonPropertyName("key")] string Key
-#pragma warning restore SA1313
-  ) {
-#pragma warning disable CA1822
-    [JsonPropertyName("requestTimeMils")]
-    public long RequestTimeMilliseconds => 0L; // DateTimeOffset.Now.ToUnixTimeMilliseconds();
-#pragma warning restore CA1822
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/HandshakeResponse.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/HandshakeResponse.cs
deleted file mode 100644
index 8939a70..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/HandshakeResponse.cs
+++ /dev/null
@@ -1,19 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-#pragma warning disable SA1313
-
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct HandshakeResponse : ITapoResponse {
-  [JsonPropertyName("error_code")]
-  public ErrorCode ErrorCode { get; init; }
-
-  [JsonPropertyName("result")]
-  public ResponseResult Result { get; init; }
-
-  public readonly record struct ResponseResult(
-    [property: JsonPropertyName("key")] string? Key
-  );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoPassThroughRequest.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoPassThroughRequest.cs
deleted file mode 100644
index 598543d..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoPassThroughRequest.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public interface ITapoPassThroughRequest : ITapoRequest {
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoPassThroughResponse.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoPassThroughResponse.cs
deleted file mode 100644
index 93705a5..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoPassThroughResponse.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public interface ITapoPassThroughResponse : ITapoResponse {
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoRequest.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoRequest.cs
deleted file mode 100644
index ed9ffda..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoRequest.cs
+++ /dev/null
@@ -1,11 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public interface ITapoRequest {
-/*
-  [JsonPropertyName("method")]
-  [JsonPropertyOrder(int.MinValue)]
-*/
-  string Method { get; }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoResponse.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoResponse.cs
deleted file mode 100644
index 22eee02..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/ITapoResponse.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public interface ITapoResponse {
-/*
-  [JsonPropertyName("error_code")]
-*/
-  public ErrorCode ErrorCode { get; init; }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceRequest.TapoCredentialJsonConverter.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceRequest.TapoCredentialJsonConverter.cs
deleted file mode 100644
index a26abeb..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceRequest.TapoCredentialJsonConverter.cs
+++ /dev/null
@@ -1,67 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-#pragma warning disable IDE0040
-partial struct LoginDeviceRequest {
-#pragma warning restore IDE0040
-  private static readonly JsonEncodedText PropertyNamePassword = JsonEncodedText.Encode(
-#if LANG_VERSION_11_OR_GREATER
-    "password"u8
-#else
-    "password"
-#endif
-  );
-  private static readonly JsonEncodedText PropertyNameUsername = JsonEncodedText.Encode(
-#if LANG_VERSION_11_OR_GREATER
-    "username"u8
-#else
-    "username"
-#endif
-  );
-
-  internal sealed class TapoCredentialJsonConverter : JsonConverter<ITapoCredentialProvider> {
-    private readonly ITapoCredentialIdentity? identity;
-
-    internal TapoCredentialJsonConverter(ITapoCredentialIdentity? identity)
-    {
-      this.identity = identity;
-    }
-
-    public override ITapoCredentialProvider? Read(
-      ref Utf8JsonReader reader,
-      Type typeToConvert,
-      JsonSerializerOptions options
-    )
-      => throw new NotSupportedException();
-
-    public override void Write(
-      Utf8JsonWriter writer,
-      ITapoCredentialProvider value,
-      JsonSerializerOptions options
-    )
-    {
-      using var credential = value.GetCredential(identity);
-
-      if (credential is null)
-        throw new InvalidOperationException($"Could not get a credential for an identity '{identity?.Name ?? "(null)"}'");
-
-      writer.WriteStartObject();
-
-      writer.WritePropertyName(PropertyNamePassword);
-
-      credential.WritePasswordPropertyValue(writer);
-
-      writer.WritePropertyName(PropertyNameUsername);
-
-      credential.WriteUsernamePropertyValue(writer);
-
-      writer.WriteEndObject();
-    }
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceRequest.TapoCredentialMaskingJsonConverter.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceRequest.TapoCredentialMaskingJsonConverter.cs
deleted file mode 100644
index a94e827..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceRequest.TapoCredentialMaskingJsonConverter.cs
+++ /dev/null
@@ -1,47 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-#pragma warning disable IDE0040
-partial struct LoginDeviceRequest {
-#pragma warning restore IDE0040
-  internal sealed class TapoCredentialMaskingJsonConverter : JsonConverter<ITapoCredentialProvider> {
-    private static readonly JsonEncodedText PropertyValueMaskedCredential = JsonEncodedText.Encode(
-#if LANG_VERSION_11_OR_GREATER
-      "****"u8
-#else
-      "****"
-#endif
-    );
-
-    public static readonly JsonConverter<ITapoCredentialProvider> Instance = new TapoCredentialMaskingJsonConverter();
-
-    private TapoCredentialMaskingJsonConverter()
-    {
-    }
-
-    public override ITapoCredentialProvider? Read(
-      ref Utf8JsonReader reader,
-      Type typeToConvert,
-      JsonSerializerOptions options
-    )
-      => throw new NotSupportedException();
-
-    public override void Write(
-      Utf8JsonWriter writer,
-      ITapoCredentialProvider value,
-      JsonSerializerOptions options
-    )
-    {
-      writer.WriteStartObject();
-      writer.WriteString(PropertyNamePassword, PropertyValueMaskedCredential);
-      writer.WriteString(PropertyNameUsername, PropertyValueMaskedCredential);
-      writer.WriteEndObject();
-    }
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceRequest.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceRequest.cs
deleted file mode 100644
index 56ff224..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceRequest.cs
+++ /dev/null
@@ -1,25 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.Text.Json.Serialization;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly partial struct LoginDeviceRequest : ITapoPassThroughRequest {
-  [JsonPropertyName("method")]
-  [JsonPropertyOrder(0)]
-  public string Method => "login_device";
-
-  [JsonPropertyName("params")]
-  public ITapoCredentialProvider Parameters { get; }
-
-#pragma warning disable CA1822
-  [JsonPropertyName("requestTimeMils")]
-  public long RequestTimeMilliseconds => 0L; // DateTimeOffset.Now.ToUnixTimeMilliseconds();
-#pragma warning restore CA1822
-
-  public LoginDeviceRequest(ITapoCredentialProvider credential)
-  {
-    Parameters = credential;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceResponse.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceResponse.cs
deleted file mode 100644
index ec5c298..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/LoginDeviceResponse.cs
+++ /dev/null
@@ -1,19 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-#pragma warning disable SA1313
-
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct LoginDeviceResponse : ITapoPassThroughResponse {
-  [JsonPropertyName("error_code")]
-  public ErrorCode ErrorCode { get; init; }
-
-  [JsonPropertyName("result")]
-  public ResponseResult Result { get; init; }
-
-  public readonly record struct ResponseResult(
-    [property: JsonPropertyName("token")] string Token
-  );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughInvalidPaddingException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughInvalidPaddingException.cs
deleted file mode 100644
index a851592..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughInvalidPaddingException.cs
+++ /dev/null
@@ -1,18 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public class SecurePassThroughInvalidPaddingException : SystemException {
-  public SecurePassThroughInvalidPaddingException(
-    string message,
-    Exception? innerException
-  )
-    : base(
-      message: message,
-      innerException: innerException
-    )
-  {
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughJsonConverterFactory.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughJsonConverterFactory.cs
deleted file mode 100644
index a393794..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughJsonConverterFactory.cs
+++ /dev/null
@@ -1,233 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.IO;
-using System.Reflection;
-using System.Security.Cryptography;
-using System.Text;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-using Microsoft.Extensions.Logging;
-
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-/// <remarks>
-/// This implementation is based on and ported from the following implementation: <see href="https://github.com/fishbigger/TapoP100">fishbigger/TapoP100</see>.
-/// </remarks>
-public sealed class SecurePassThroughJsonConverterFactory :
-  JsonConverterFactory,
-  IDisposable,
-  SecurePassThroughJsonConverterFactory.IPassThroughObjectJsonConverter
-{
-  private interface IPassThroughObjectJsonConverter {
-    void WriteEncryptedValue<TValue>(
-      Utf8JsonWriter writer,
-      TValue value
-    );
-    TValue ReadDecryptedValue<TValue>(
-      ref Utf8JsonReader reader,
-      Type typeToConvert
-    );
-  }
-
-  private ICryptoTransform? encryptorForPassThroughRequest;
-  private ICryptoTransform? decryptorForPassThroughResponse;
-
-  // used for avoiding JsonSerializer to (de)serialize recursively
-  private readonly JsonSerializerOptions jsonSerializerOptionsForPassThroughMessage;
-  private readonly JsonSerializerOptions? jsonSerializerOptionsForPassThroughMessageLogger;
-
-  private readonly ILogger? logger;
-  private bool disposed;
-
-  public SecurePassThroughJsonConverterFactory(
-    ITapoCredentialIdentity? identity,
-    ICryptoTransform? encryptorForPassThroughRequest,
-    ICryptoTransform? decryptorForPassThroughResponse,
-    JsonSerializerOptions? baseJsonSerializerOptionsForPassThroughMessage,
-    ILogger? logger = null
-  )
-  {
-    this.encryptorForPassThroughRequest = encryptorForPassThroughRequest;
-    this.decryptorForPassThroughResponse = decryptorForPassThroughResponse;
-    this.logger = logger;
-
-    jsonSerializerOptionsForPassThroughMessage = baseJsonSerializerOptionsForPassThroughMessage is null
-      ? new()
-      : new(baseJsonSerializerOptionsForPassThroughMessage);
-    jsonSerializerOptionsForPassThroughMessage.Converters.Add(
-      new LoginDeviceRequest.TapoCredentialJsonConverter(identity: identity)
-    );
-
-    if (logger is not null) {
-      jsonSerializerOptionsForPassThroughMessageLogger = baseJsonSerializerOptionsForPassThroughMessage is null
-        ? new()
-        : new(baseJsonSerializerOptionsForPassThroughMessage);
-      jsonSerializerOptionsForPassThroughMessageLogger.Converters.Add(
-        LoginDeviceRequest.TapoCredentialMaskingJsonConverter.Instance // mask credentials for logger output
-      );
-    }
-  }
-
-  public void Dispose()
-  {
-    encryptorForPassThroughRequest?.Dispose();
-    encryptorForPassThroughRequest = null;
-
-    decryptorForPassThroughResponse?.Dispose();
-    decryptorForPassThroughResponse = null;
-
-    disposed = true;
-  }
-
-  private Stream CreateEncryptingStream(Stream stream)
-    => disposed
-      ? throw new ObjectDisposedException(GetType().FullName)
-      : new CryptoStream(
-        stream: stream ?? throw new ArgumentNullException(nameof(stream)),
-        transform: encryptorForPassThroughRequest ?? throw new NotSupportedException("encryption not supported"),
-        mode: CryptoStreamMode.Write,
-        leaveOpen: true
-      );
-
-  private Stream CreateDecryptingStream(Stream stream)
-    => disposed
-      ? throw new ObjectDisposedException(GetType().FullName)
-      : new CryptoStream(
-        stream: stream ?? throw new ArgumentNullException(nameof(stream)),
-        transform: decryptorForPassThroughResponse ?? throw new NotSupportedException("decryption not supported"),
-        mode: CryptoStreamMode.Read,
-        leaveOpen: true
-      );
-
-  public override bool CanConvert(Type typeToConvert)
-    =>
-      typeof(ITapoPassThroughRequest).IsAssignableFrom(typeToConvert) ||
-      typeof(ITapoPassThroughResponse).IsAssignableFrom(typeToConvert);
-
-  public override JsonConverter? CreateConverter(
-    Type typeToConvert,
-    JsonSerializerOptions options
-  )
-    => CanConvert(typeToConvert)
-      ? (JsonConverter)Activator.CreateInstance(
-          type: typeof(PassThroughObjectJsonConverter<>).MakeGenericType(typeToConvert),
-          bindingAttr: BindingFlags.Instance | BindingFlags.Public,
-          binder: null,
-          args: new object[] { this },
-          culture: null
-        )!
-      // should throw exception?
-      //   throw new NotSupportedException($"unexpected type to convert: {typeToConvert.FullName}");
-      : null;
-
-  void IPassThroughObjectJsonConverter.WriteEncryptedValue<TValue>(
-    Utf8JsonWriter writer,
-    TValue value
-  )
-  {
-    logger?.LogTrace(
-      "PassThroughRequest: {RawJson} ({TypeFullName})",
-      JsonSerializer.Serialize(value: value, options: jsonSerializerOptionsForPassThroughMessageLogger),
-      typeof(TValue).FullName
-    );
-
-    var stream = new MemoryStream(capacity: 256); // TODO: IMemoryAllocator
-
-    using var encryptingStream = CreateEncryptingStream(stream);
-
-    JsonSerializer.Serialize(
-      utf8Json: encryptingStream,
-      value: value,
-      options: jsonSerializerOptionsForPassThroughMessage
-    );
-
-    encryptingStream.Close();
-
-    if (!stream.TryGetBuffer(out var buffer))
-      throw new InvalidOperationException("cannot get buffer from MemoryStream");
-
-    writer.WriteBase64StringValue(buffer.AsSpan());
-  }
-
-  TValue IPassThroughObjectJsonConverter.ReadDecryptedValue<TValue>(
-    ref Utf8JsonReader reader,
-    Type typeToConvert
-  )
-  {
-    if (!reader.TryGetBytesFromBase64(out var base64))
-      throw new JsonException("could not read base64 string");
-
-    var cryptographicExceptionThrown = false;
-
-    try {
-      using var stream = new MemoryStream(base64, writable: false);
-      using var decryptingStream = CreateDecryptingStream(stream);
-
-      try {
-        return (TValue?)JsonSerializer.Deserialize(
-          utf8Json: decryptingStream,
-          returnType: typeToConvert,
-          options: jsonSerializerOptionsForPassThroughMessage
-        );
-      }
-      catch (CryptographicException ex) when (IsInvalidPaddingException(ex)) {
-        cryptographicExceptionThrown = true;
-        throw new SecurePassThroughInvalidPaddingException("Invalid padding detected in encrypted JSON", ex);
-      }
-      catch (CryptographicException ex) {
-        cryptographicExceptionThrown = true;
-        throw;
-      }
-
-      static bool IsInvalidPaddingException(CryptographicException ex)
-      {
-        // https://github.com/dotnet/runtime/blob/main/src/libraries/System.Security.Cryptography/src/Resources/Strings.resx
-        const string SR_Cryptography_InvalidPadding = "Padding is invalid and cannot be removed.";
-
-        return SR_Cryptography_InvalidPadding.AsSpan().SequenceEqual(ex.Message); // TODO: consider localized message strings
-      }
-    }
-    finally {
-      if (!cryptographicExceptionThrown && logger is not null) {
-        using var stream = new MemoryStream(base64, writable: false);
-        using var decryptingStream = CreateDecryptingStream(stream);
-
-        logger.LogTrace(
-          "PassThroughResponse: {RawJson} ({TypeFullName})",
-          new StreamReader(decryptingStream, Encoding.UTF8).ReadToEnd(),
-          typeof(TValue).FullName
-        );
-      }
-    }
-  }
-
-  private class PassThroughObjectJsonConverter<TPassThroughObject>
-    : JsonConverter<TPassThroughObject>
-    // where TPassThroughObject : ITapoPassThroughRequest or ITapoPassThroughResponse
-  {
-    private readonly IPassThroughObjectJsonConverter converter;
-
-    public PassThroughObjectJsonConverter(IPassThroughObjectJsonConverter converter)
-    {
-      this.converter = converter;
-    }
-
-    public override void Write(
-      Utf8JsonWriter writer,
-      TPassThroughObject value,
-      JsonSerializerOptions options
-    )
-      => converter.WriteEncryptedValue(writer, value);
-
-    public override TPassThroughObject? Read(
-      ref Utf8JsonReader reader,
-      Type typeToConvert,
-      JsonSerializerOptions options
-    )
-      => converter.ReadDecryptedValue<TPassThroughObject>(ref reader, typeToConvert);
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughRequest.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughRequest.cs
deleted file mode 100644
index 22451b4..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughRequest.cs
+++ /dev/null
@@ -1,29 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct SecurePassThroughRequest<TPassThroughRequest> :
-  ITapoRequest
-  where TPassThroughRequest : ITapoPassThroughRequest
-{
-  [JsonPropertyName("method")]
-  [JsonPropertyOrder(0)]
-  public string Method => "securePassthrough";
-
-  [JsonPropertyName("params")]
-  public RequestParams Params { get; }
-
-  public readonly record struct RequestParams(
-#pragma warning disable SA1313
-    [property: JsonPropertyName("request")]
-    TPassThroughRequest PassThroughRequest
-#pragma warning restore SA1313
-  );
-
-  public SecurePassThroughRequest(TPassThroughRequest passThroughRequest)
-  {
-    Params = new(passThroughRequest);
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughResponse.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughResponse.cs
deleted file mode 100644
index 697c0a4..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SecurePassThroughResponse.cs
+++ /dev/null
@@ -1,32 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct SecurePassThroughResponse<TPassThroughResponse> :
-  ITapoResponse
-  where TPassThroughResponse : ITapoPassThroughResponse
-{
-  [JsonPropertyName("error_code")]
-  public ErrorCode ErrorCode { get; init; }
-
-  [JsonPropertyName("result")]
-  public ResponseResult Result { get; init; }
-
-  public SecurePassThroughResponse(
-    ErrorCode errorCode,
-    TPassThroughResponse passThroughResponse
-  )
-  {
-    ErrorCode = errorCode;
-    Result = new(passThroughResponse);
-  }
-
-  public readonly record struct ResponseResult(
-#pragma warning disable SA1313
-    [property: JsonPropertyName("response")]
-    TPassThroughResponse PassThroughResponse
-#pragma warning restore SA1313
-  );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SetDeviceInfoRequest.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SetDeviceInfoRequest.cs
deleted file mode 100644
index f89a90d..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SetDeviceInfoRequest.cs
+++ /dev/null
@@ -1,31 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct SetDeviceInfoRequest<TParameters> : ITapoPassThroughRequest {
-  [JsonPropertyName("method")]
-  [JsonPropertyOrder(0)]
-  public string Method => "set_device_info";
-
-#pragma warning disable CA1822
-  [JsonPropertyName("requestTimeMils")]
-  public long RequestTimeMilliseconds => 0L; // DateTimeOffset.Now.ToUnixTimeMilliseconds();
-#pragma warning restore CA1822
-
-  [JsonPropertyName("terminalUUID")]
-  public string TerminalUuid { get; }
-
-  [JsonPropertyName("params")]
-  public TParameters Parameters { get; }
-
-  public SetDeviceInfoRequest(
-    string terminalUuid,
-    TParameters parameters
-  )
-  {
-    TerminalUuid = terminalUuid;
-    Parameters = parameters;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SetDeviceInfoResponse.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SetDeviceInfoResponse.cs
deleted file mode 100644
index 7cced70..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/SetDeviceInfoResponse.cs
+++ /dev/null
@@ -1,19 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-#pragma warning disable SA1313
-using System.Collections.Generic;
-using System.Text.Json.Serialization;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct SetDeviceInfoResponse : ITapoPassThroughResponse {
-  [JsonPropertyName("error_code")]
-  public ErrorCode ErrorCode { get; init; }
-
-  [JsonPropertyName("result")]
-  public ResponseResult Result { get; init; }
-
-  public readonly record struct ResponseResult(
-    [property: JsonExtensionData] IDictionary<string, object>? ExtraData
-  );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClient.Authentication.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClient.Authentication.cs
deleted file mode 100644
index fe60a62..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClient.Authentication.cs
+++ /dev/null
@@ -1,237 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.Logging;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-#pragma warning disable IDE0040
-partial class TapoClient {
-#pragma warning restore IDE0040
-  private const int KeyExchangeAlgorithmKeySizeInBytes = 128;
-
-  private async ValueTask AuthenticateAsyncCore(
-    ITapoCredentialIdentity identity,
-    ITapoCredentialProvider credential,
-    CancellationToken cancellationToken
-  )
-  {
-    cancellationToken.ThrowIfCancellationRequested();
-
-    var prevSession = session;
-
-    try {
-      /*
-       * handshake
-       */
-      logger?.LogDebug("Handshake starting: {EndPointUri}", endPointUri);
-
-      session = await HandshakeAsync(identity, cancellationToken).ConfigureAwait(false);
-
-      logger?.LogDebug("Handshake completed.");
-
-      /*
-       * login_device
-       */
-      logger?.LogDebug("Login starting: {EndPointUri}", endPointUri);
-
-      var token = await LoginDeviceAsync(credential, cancellationToken).ConfigureAwait(false);
-
-      logger?.LogDebug("Login completed, access token has issued: {Token}", token);
-
-      /*
-       * session established
-       */
-      session.SetToken(token);
-
-      logger?.LogDebug("Request path and query for the session: '{PathAndQuery}'", session.RequestPathAndQuery);
-
-      logger?.LogInformation(
-        "Session established: {SessionRequestPathAndQuery}; {SessionIDPrefix}{SessionID}; expires on {ExpiresOn}",
-        session.RequestPathAndQuery,
-        TapoSessionCookieUtils.HttpCookiePrefixForSessionId,
-        session.SessionId,
-        session.ExpiresOn.ToString("o", provider: null)
-      );
-
-      prevSession?.Dispose();
-    }
-    catch {
-      session?.Dispose();
-      session = null;
-
-      throw;
-    }
-  }
-
-  private async ValueTask<TapoSession> HandshakeAsync(
-    ITapoCredentialIdentity? identity,
-    CancellationToken cancellationToken
-  )
-  {
-    cancellationToken.ThrowIfCancellationRequested();
-
-    using var keyExchangeAlgorithm = RSA.Create(keySizeInBits: KeyExchangeAlgorithmKeySizeInBytes * 8);
-
-    var publicKeyInfoPem =
-#if SYSTEM_SECURITY_CRYPTOGRAPHY_ASYMMETRICALGORITHM_EXPORTSUBJECTPUBLICKEYINFOPEM
-      keyExchangeAlgorithm.ExportSubjectPublicKeyInfoPem();
-#else
-      AsymmetricAlgorithmShim.ExportSubjectPublicKeyInfoPem(keyExchangeAlgorithm!);
-#endif
-
-    logger?.LogTrace("[Handshake] Public key: {PublicKeyInfoPem}", publicKeyInfoPem);
-
-    var baseTimeForExpiration = DateTime.Now;
-    string base64EncryptedKey;
-    string? sessionId;
-    int? sessionTimeout;
-
-    try {
-      (var response, (sessionId, sessionTimeout)) = await PostPlainTextRequestAsync<
-        HandshakeRequest,
-        HandshakeResponse,
-        (string?, int?)
-      >(
-        request: new(key: publicKeyInfoPem),
-        jsonSerializerOptions: CommonJsonSerializerOptions,
-        processHttpResponse: ParseSessionCookie,
-        cancellationToken: cancellationToken
-      ).ConfigureAwait(false);
-
-      if (response.Result.Key is null) {
-        logger?.LogCritical("Could not exchange the key during handshaking.");
-        throw new TapoAuthenticationException(
-          message: $"Could not exchange the key during handshaking with the device at '{endPointUri}'.",
-          endPoint: endPointUri
-        );
-      }
-
-      base64EncryptedKey = response.Result.Key;
-    }
-    catch (TapoErrorResponseException ex) {
-      logger?.LogCritical("Failed to handshake with error code {ErrorCode}.", (int)ex.ErrorCode);
-      throw new TapoAuthenticationException(
-        message: $"Failed to handshake with the device at '{endPointUri}' with error code {(int)ex.ErrorCode}.",
-        endPoint: endPointUri,
-        innerException: ex
-      );
-    }
-    catch (TaskCanceledException ex) when (ex.InnerException is TimeoutException exTimeout) {
-      logger?.LogCritical("Failed to handshake due to timeout. ({ExceptionMessage})", ex.Message);
-      throw new TapoAuthenticationException(
-        message: $"Failed to handshake with the device at '{endPointUri}' due to timeout. ({ex.Message})",
-        endPoint: endPointUri,
-        innerException: exTimeout
-      );
-    }
-
-    logger?.LogTrace("[Handshake] Exchanged key: {Key}", base64EncryptedKey);
-    logger?.LogTrace("[Handshake] Session ID: {SessionId}", sessionId);
-    logger?.LogTrace("[Handshake] Session timeout: {SessionTimeout}", sessionTimeout);
-
-    var encryptedKey = Convert.FromBase64String(base64EncryptedKey);
-
-    if (encryptedKey.Length != KeyExchangeAlgorithmKeySizeInBytes) {
-      logger?.LogCritical("Exchanged unexpecting length of key");
-      throw new TapoAuthenticationException(
-        message: $"Exchanged unexpecting length of key from the device at '{endPointUri}'.",
-        endPoint: endPointUri
-      );
-    }
-
-    var keyBytes = keyExchangeAlgorithm.Decrypt(
-      data: encryptedKey,
-      padding: RSAEncryptionPadding.Pkcs1
-    );
-    var expiresOn = sessionTimeout.HasValue
-      ? baseTimeForExpiration + TimeSpan.FromMinutes(sessionTimeout.Value)
-      : DateTime.MaxValue;
-
-    logger?.LogTrace(
-      "[Handshake] Session expires on: {ExpiresOn}",
-      expiresOn.ToString("o", provider: null)
-    );
-    logger?.LogTrace(
-      "[Handshake] Key: {Key}",
-#if SYSTEM_CONVERT_TOHEXSTRING
-      Convert.ToHexString(keyBytes.AsSpan(0, 16))
-#else
-      Smdn.Formats.Hexadecimal.ToUpperCaseString(keyBytes.AsSpan(0, 16))
-#endif
-    );
-    logger?.LogTrace(
-      "[Handshake] IV: {IV}",
-#if SYSTEM_CONVERT_TOHEXSTRING
-      Convert.ToHexString(keyBytes.AsSpan(16, 16))
-#else
-      Smdn.Formats.Hexadecimal.ToUpperCaseString(keyBytes.AsSpan(16, 16))
-#endif
-    );
-
-    return new(
-      identity: identity,
-      sessionId: sessionId,
-      expiresOn: expiresOn,
-      key: keyBytes.AsSpan(0, 16),
-      iv: keyBytes.AsSpan(16, 16),
-      baseJsonSerializerOptions: CommonJsonSerializerOptions,
-      logger: logger
-    );
-
-    // TODO: logger
-    static (string? SessionId, int? SessionTimeout) ParseSessionCookie(HttpResponseMessage response)
-      => TapoSessionCookieUtils.TryGetCookie(response, out var sessionId, out var sessionTimeout)
-        ? (sessionId, sessionTimeout)
-        : default;
-  }
-
-  private async ValueTask<string> LoginDeviceAsync(
-    ITapoCredentialProvider credential,
-    CancellationToken cancellationToken
-  )
-  {
-    cancellationToken.ThrowIfCancellationRequested();
-
-    string token;
-
-    try {
-      var loginDeviceResponse = await SendRequestAsync<LoginDeviceRequest, LoginDeviceResponse>(
-        request: new(credential: credential),
-        cancellationToken: cancellationToken
-      ).ConfigureAwait(false);
-
-      token = loginDeviceResponse.Result.Token;
-    }
-    catch (TapoErrorResponseException ex) {
-      throw new TapoAuthenticationException(
-        message: $"Denied to initiate authorized session with the device at '{endPointUri}'. (error code: {(int)ex.ErrorCode})",
-        endPoint: endPointUri,
-        innerException: ex
-      );
-    }
-    catch (TaskCanceledException ex) when (ex.InnerException is TimeoutException exTimeout) {
-      logger?.LogCritical("Failed to initiate authorized session due to timeout. ({ExceptionMessage})", ex.Message);
-      throw new TapoAuthenticationException(
-        message: $"Failed to initiate authorized session with the device at '{endPointUri}' due to timeout. ({ex.Message})",
-        endPoint: endPointUri,
-        innerException: exTimeout
-      );
-    }
-
-    if (string.IsNullOrEmpty(token)) {
-      logger?.LogError("Access token has not been issued.");
-      throw new TapoAuthenticationException(
-        message: $"An access token was not issued from the device at '{endPointUri}'.",
-        endPoint: endPointUri
-      );
-    }
-
-    return token;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClient.Http.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClient.Http.cs
deleted file mode 100644
index 4643604..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClient.Http.cs
+++ /dev/null
@@ -1,156 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Linq;
-using System.Net.Http;
-using System.Net.Http.Headers;
-using System.Net.Http.Json;
-using System.Text.Json;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.Logging;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-#pragma warning disable IDE0040
-partial class TapoClient {
-#pragma warning restore IDE0040
-  private static readonly MediaTypeHeaderValue mediaTypeJson = new(mediaType: "application/json");
-
-  public TimeSpan? Timeout { get; set; }
-
-  private async ValueTask<TResponse> PostSecurePassThroughRequestAsync<TRequest, TResponse>(
-    TRequest request,
-    JsonSerializerOptions jsonSerializerOptions,
-    CancellationToken cancellationToken
-  )
-    where TRequest : ITapoPassThroughRequest
-    where TResponse : ITapoPassThroughResponse
-  {
-    cancellationToken.ThrowIfCancellationRequested();
-
-    logger?.LogDebug("Request: {Request}", JsonSerializer.Serialize(request, jsonSerializerOptions));
-
-    var (securePassThroughResponse, requestUri) = await PostPlainTextRequestAsync<
-      SecurePassThroughRequest<TRequest>,
-      SecurePassThroughResponse<TResponse>,
-      Uri
-    >(
-      request: new(passThroughRequest: request),
-      jsonSerializerOptions: jsonSerializerOptions,
-      processHttpResponse: static httpResponse => httpResponse.RequestMessage.RequestUri,
-      cancellationToken: cancellationToken
-    ).ConfigureAwait(false);
-
-    var response = securePassThroughResponse.Result.PassThroughResponse;
-
-    logger?.LogDebug("Respose error code: {ErrorCode}", (int)response.ErrorCode);
-
-    TapoErrorResponseException.ThrowIfError(
-      requestUri,
-      request.Method,
-      response.ErrorCode
-    );
-
-    return response;
-  }
-
-  private async ValueTask<(
-    TResponse? Response,
-    THttpResult? HttpResult
-  )>
-  PostPlainTextRequestAsync<TRequest, TResponse, THttpResult>(
-    TRequest request,
-    JsonSerializerOptions jsonSerializerOptions,
-    Func<HttpResponseMessage, THttpResult?>? processHttpResponse,
-    CancellationToken cancellationToken
-  )
-    where TRequest : ITapoRequest
-    where TResponse : ITapoResponse
-  {
-    cancellationToken.ThrowIfCancellationRequested();
-
-    logger?.LogDebug("HTTP Transaction: Session={SessionId}, Token={Token}", session?.SessionId, session?.Token);
-
-    using var requestContent = JsonContent.Create(
-      inputValue: request,
-      mediaType: mediaTypeJson,
-      options: jsonSerializerOptions
-    );
-
-    if (session?.SessionId is not null) {
-      requestContent.Headers.Add(
-        "Cookie",
-        string.Concat(TapoSessionCookieUtils.HttpCookiePrefixForSessionId, session.SessionId)
-      );
-    }
-
-    // Disables 'chunked' transfer encoding
-    //   The HTTP server inside of the Tapo devices does not seem to support 'chunked' transfer encoding.
-    //   To prevent content from being transferred by 'chunked', serialize the content onto a memory buffer
-    //   and ensure the HttpClient to calculate Content-Length before transferring.
-    //
-    // ref:
-    //   https://github.com/dotnet/runtime/issues/49357
-    //   https://github.com/dotnet/runtime/issues/70793
-    await requestContent.LoadIntoBufferAsync().ConfigureAwait(false);
-
-    var requestUri = session is null ? TapoSession.RequestPath : session.RequestPathAndQuery;
-
-    logger?.LogTrace("HTTP Request URI: {RequestUri}", requestUri);
-    logger?.LogTrace(
-      "HTTP Request headers: {RequestHeaders}",
-      string.Join(" ", requestContent.Headers.Select(static header => string.Concat(header.Key, ": ", string.Join("; ", header.Value))))
-    );
-    logger?.LogTrace(
-      "HTTP Request content: {RequestContent}",
-      await requestContent.ReadAsStringAsync().ConfigureAwait(false)
-    );
-
-    using var httpClient = httpClientFactory.CreateClient(
-      name: string.Concat(nameof(TapoClient), " (", endPointUri, ")")
-    );
-
-    httpClient.BaseAddress = endPointUri;
-
-    if (Timeout.HasValue)
-      // override timeout value configured by IHttpClientFactory
-      httpClient.Timeout = Timeout.Value;
-
-    using var httpResponse = await httpClient.PostAsync(
-      requestUri: requestUri,
-      content: requestContent,
-      cancellationToken: cancellationToken
-    ).ConfigureAwait(false);
-
-    var httpResult = processHttpResponse is null
-      ? default
-      : processHttpResponse(httpResponse);
-
-    logger?.LogTrace(
-      "HTTP Response status: {ResponseStatusCode} {ResponseReasonPhrase}",
-      (int)httpResponse.StatusCode,
-      httpResponse.ReasonPhrase
-    );
-    logger?.LogTrace(
-      "HTTP Response headers: {ResponseHeaders}",
-      string.Join(" ", httpResponse.Content.Headers.Concat(httpResponse.Headers).Select(static header => string.Concat(header.Key, ": ", string.Join("; ", header.Value))))
-    );
-    logger?.LogTrace("HTTP Response content: {ResponseContent}", await httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false));
-
-    httpResponse.EnsureSuccessStatusCode();
-
-    var response = await httpResponse.Content.ReadFromJsonAsync<TResponse>(
-      cancellationToken: cancellationToken,
-      options: jsonSerializerOptions
-    ).ConfigureAwait(false);
-
-    TapoErrorResponseException.ThrowIfError(
-      httpResponse.RequestMessage.RequestUri,
-      request.Method,
-      response.ErrorCode
-    );
-
-    return (response, httpResult);
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClient.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClient.cs
deleted file mode 100644
index 0bb2d04..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClient.cs
+++ /dev/null
@@ -1,184 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.Http;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.Logging;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-/// <remarks>
-/// This implementation is based on and ported from the following implementation: <see href="https://github.com/fishbigger/TapoP100">fishbigger/TapoP100</see>.
-/// </remarks>
-public sealed partial class TapoClient : IDisposable {
-  public const int DefaultPort = 80; // HTTP
-
-  internal static Uri GetEndPointUri(EndPoint endPoint)
-  {
-    // 'http://<endPoint.Host>:<endPoint.Port>/'
-    var uriBuilder = endPoint switch {
-      null => throw new ArgumentNullException(nameof(endPoint)),
-      DnsEndPoint dnsEndPoint => new UriBuilder() {
-        Host = dnsEndPoint.Host,
-        Port = dnsEndPoint.Port == 0 ? -1 : dnsEndPoint.Port,
-      },
-      IPEndPoint ipEndPoint => new UriBuilder() {
-        Host = ipEndPoint.Address.ToString(),
-        Port = ipEndPoint.Port == 0 ? -1 : ipEndPoint.Port,
-      },
-      _ => new UriBuilder() {
-        Host = endPoint.ToString(), // XXX
-        Port = -1,
-      },
-    };
-
-    uriBuilder.Scheme = Uri.UriSchemeHttp;
-
-    return uriBuilder.Uri;
-  }
-
-  private static readonly JsonSerializerOptions CommonJsonSerializerOptions = new() {
-    DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
-
-#if false
-    // disable encoding '+' in base64 strings
-    // ref: https://github.com/dotnet/runtime/issues/35281
-    // Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
-#endif
-  };
-
-  /*
-   * instance members
-   */
-  private bool IsDisposed => httpClientFactory is null;
-
-  private IHttpClientFactory? httpClientFactory; // if null, it indicates a 'disposed' state.
-  private readonly Uri endPointUri;
-  private readonly EndPoint endPoint;
-  private readonly ILogger? logger;
-  private TapoSession? session;
-
-  public TapoSession? Session {
-    get {
-      ThrowIfDisposed();
-      return session;
-    }
-  }
-
-  public Uri EndPointUri {
-    get {
-      ThrowIfDisposed();
-      return endPointUri;
-    }
-  }
-
-  internal EndPoint EndPoint {
-    get {
-      ThrowIfDisposed();
-      return endPoint;
-    }
-  }
-
-  internal ILogger? Logger {
-    get {
-      ThrowIfDisposed();
-      return logger;
-    }
-  }
-
-  public TapoClient(
-    EndPoint endPoint,
-    IHttpClientFactory? httpClientFactory = null,
-    ILogger? logger = null
-  )
-  {
-    this.endPoint = endPoint ?? throw new ArgumentNullException(nameof(endPoint));
-    this.logger = logger;
-
-    endPointUri = GetEndPointUri(endPoint);
-
-    logger?.LogTrace("Device end point: {DeviceEndPointUri}", endPointUri);
-
-    this.httpClientFactory = httpClientFactory ?? TapoHttpClientFactory.Default;
-
-    logger?.LogTrace("IHttpClientFactory: {IHttpClientFactory}", this.httpClientFactory.GetType().FullName);
-  }
-
-  private void Dispose(bool disposing)
-  {
-    if (!disposing)
-      return;
-
-    session?.Dispose();
-    session = null;
-
-    httpClientFactory = null;
-  }
-
-  public void Dispose()
-  {
-    Dispose(true);
-    GC.SuppressFinalize(this);
-  }
-
-  private void ThrowIfDisposed()
-  {
-    if (IsDisposed)
-      throw new ObjectDisposedException(GetType().FullName);
-  }
-
-  public ValueTask AuthenticateAsync(
-    ITapoCredentialIdentity? identity,
-    ITapoCredentialProvider credential,
-    CancellationToken cancellationToken = default
-  )
-  {
-    if (credential is null)
-      throw new ArgumentNullException(nameof(credential));
-
-    ThrowIfDisposed();
-
-    return AuthenticateAsyncCore(
-      identity,
-      credential,
-      cancellationToken
-    );
-  }
-
-  public ValueTask<TResponse> SendRequestAsync<TRequest, TResponse>(
-    CancellationToken cancellationToken = default
-  )
-    where TRequest : ITapoPassThroughRequest, new()
-    where TResponse : ITapoPassThroughResponse
-    => SendRequestAsync<TRequest, TResponse>(
-      request: new(),
-      cancellationToken: cancellationToken
-    );
-
-  public ValueTask<TResponse> SendRequestAsync<TRequest, TResponse>(
-    TRequest request,
-    CancellationToken cancellationToken = default
-  )
-    where TRequest : ITapoPassThroughRequest
-    where TResponse : ITapoPassThroughResponse
-  {
-    if (request is null)
-      throw new ArgumentNullException(nameof(request));
-
-    ThrowIfDisposed();
-
-    if (session is null)
-      throw new InvalidOperationException("The session for this instance has not been established.");
-
-    return PostSecurePassThroughRequestAsync<TRequest, TResponse>(
-      request: request,
-      jsonSerializerOptions: session.SecurePassThroughJsonSerializerOptions,
-      cancellationToken: cancellationToken
-    );
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClientDefaultExceptionHandler.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClientDefaultExceptionHandler.cs
deleted file mode 100644
index 9b4999c..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClientDefaultExceptionHandler.cs
+++ /dev/null
@@ -1,104 +0,0 @@
-using System;
-using System.Net.Http;
-using System.Net.Sockets;
-using System.Threading.Tasks;
-using Microsoft.Extensions.Logging;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-internal class TapoClientDefaultExceptionHandler : TapoClientExceptionHandler {
-  public override TapoClientExceptionHandling DetermineHandling(
-    TapoDevice device,
-    Exception exception,
-    int attempt,
-    ILogger? logger
-  )
-  {
-    switch (exception) {
-      case HttpRequestException httpRequestException:
-        if (httpRequestException.InnerException is SocketException innerSocketException) {
-          var socketErrorCode = innerSocketException.SocketErrorCode;
-
-          if (
-            socketErrorCode is
-              SocketError.ConnectionRefused or // ECONNREFUSED
-              SocketError.HostUnreachable or // EHOSTUNREACH
-              SocketError.NetworkUnreachable // ENETUNREACH
-          ) {
-            if (attempt == 0 /* retry just once */) {
-              // The end point may have changed.
-              logger?.LogInformation($"Endpoint may have changed ({nameof(SocketError)}: {(int)socketErrorCode} {socketErrorCode})");
-
-              return TapoClientExceptionHandling.InvalidateEndPointAndRetry;
-            }
-            else {
-              logger?.LogError($"Endpoint unreachable ({nameof(SocketError)}: {(int)socketErrorCode} {socketErrorCode})");
-
-              return TapoClientExceptionHandling.InvalidateEndPointAndThrow;
-            }
-          }
-
-          // The HTTP client may have been invalid due to an exception at the transport layer.
-          logger?.LogError(innerSocketException, $"Unexpected socket exception ({nameof(SocketError)}: {(int)socketErrorCode} {socketErrorCode})");
-
-          return TapoClientExceptionHandling.Throw;
-        }
-
-        return TapoClientExceptionHandling.Throw;
-
-      case SecurePassThroughInvalidPaddingException securePassThroughInvalidPaddingException:
-        if (attempt == 0 /* retry just once */) {
-          logger?.LogWarning(securePassThroughInvalidPaddingException.Message);
-
-          // The session might have been in invalid state(?)
-          return TapoClientExceptionHandling.RetryAfterReconnect;
-        }
-
-        return TapoClientExceptionHandling.ThrowAsTapoProtocolException;
-
-      case TapoErrorResponseException errorResponseException:
-        if (attempt == 0 /* retry just once */) {
-          switch (errorResponseException.ErrorCode) {
-            case TapoErrorCodes.DeviceBusy:
-              logger?.LogWarning(errorResponseException.Message);
-
-              // The session might have been in invalid state(?)
-              return TapoClientExceptionHandling.CreateRetry(
-                retryAfter: TimeSpan.FromSeconds(2.0),
-                shouldReconnect: true
-              );
-
-            case TapoErrorCodes.RequestParameterError:
-              logger?.LogWarning(errorResponseException.Message);
-              return TapoClientExceptionHandling.Throw;
-
-            default:
-              logger?.LogWarning($"Unexpected error ({nameof(errorResponseException.ErrorCode)}: {(int)errorResponseException.ErrorCode})");
-
-              // The session might have been in invalid state(?)
-              return TapoClientExceptionHandling.RetryAfterReconnect;
-          }
-        }
-
-        return TapoClientExceptionHandling.Throw;
-
-      case TaskCanceledException taskCanceledException:
-        if (taskCanceledException.InnerException is TimeoutException) {
-          if (attempt < 2 /* retry up to 3 times */) {
-            logger?.LogWarning("Request timed out; {ExceptionMessage}", taskCanceledException.Message);
-            return TapoClientExceptionHandling.Retry;
-          }
-
-          logger?.LogError(taskCanceledException, "Request timed out");
-
-          return TapoClientExceptionHandling.ThrowAsTapoProtocolException;
-        }
-
-        return TapoClientExceptionHandling.Throw;
-
-      default:
-        logger?.LogError(exception, $"Unhandled exception ({exception.GetType().FullName})");
-        return TapoClientExceptionHandling.Throw;
-    }
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClientExceptionHandler.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClientExceptionHandler.cs
deleted file mode 100644
index e74f149..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClientExceptionHandler.cs
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using Microsoft.Extensions.Logging;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public abstract class TapoClientExceptionHandler {
-  protected internal static readonly TapoClientExceptionHandler Default = new TapoClientDefaultExceptionHandler();
-
-  public abstract TapoClientExceptionHandling DetermineHandling(
-    TapoDevice device,
-    Exception exception,
-    int attempt,
-    ILogger? logger
-  );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClientExceptionHandling.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClientExceptionHandling.cs
deleted file mode 100644
index 03b40a4..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoClientExceptionHandling.cs
+++ /dev/null
@@ -1,33 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public readonly struct TapoClientExceptionHandling {
-  public static readonly TapoClientExceptionHandling Throw = default;
-  public static readonly TapoClientExceptionHandling ThrowAsTapoProtocolException = new() { ShouldWrapIntoTapoProtocolException = true };
-  public static readonly TapoClientExceptionHandling InvalidateEndPointAndThrow = new() { ShouldInvalidateEndPoint = true };
-
-  public static readonly TapoClientExceptionHandling Retry = new() { ShouldRetry = true };
-  public static readonly TapoClientExceptionHandling RetryAfterReconnect = new() { ShouldRetry = true, ShouldReconnect = true };
-  public static readonly TapoClientExceptionHandling InvalidateEndPointAndRetry = new() { ShouldRetry = true, ShouldInvalidateEndPoint = true, };
-
-  public static TapoClientExceptionHandling CreateRetry(
-    TimeSpan retryAfter,
-    bool shouldReconnect = false
-  )
-    => new() {
-      ShouldRetry = true,
-      RetryAfter = retryAfter,
-      ShouldReconnect = shouldReconnect,
-    };
-
-  public bool ShouldRetry { get; init; }
-  public TimeSpan RetryAfter { get; init; }
-  public bool ShouldReconnect { get; init; }
-  public bool ShouldWrapIntoTapoProtocolException { get; init; }
-  public bool ShouldInvalidateEndPoint { get; init; }
-
-  public override string ToString() => $"{{{nameof(ShouldRetry)}={ShouldRetry}, {nameof(RetryAfter)}={RetryAfter}, {nameof(ShouldReconnect)}={ShouldReconnect}, {nameof(ShouldWrapIntoTapoProtocolException)}={ShouldWrapIntoTapoProtocolException}, {nameof(ShouldInvalidateEndPoint)}={ShouldInvalidateEndPoint}}}";
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoErrorCodes.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoErrorCodes.cs
deleted file mode 100644
index fac7838..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoErrorCodes.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-// The situation represented by the following error codes are not well-confirmed.
-// Therefore, these error codes cannot be made public APIs.
-internal static class TapoErrorCodes {
-  public const ErrorCode DeviceBusy = (ErrorCode)(-1301);
-  public const ErrorCode RequestParameterError = (ErrorCode)(-1008);
-  // -1012: ???
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoHttpClientFactory.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoHttpClientFactory.cs
deleted file mode 100644
index 5d3682d..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoHttpClientFactory.cs
+++ /dev/null
@@ -1,55 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.Http;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-internal class TapoHttpClientFactory : IHttpClientFactory {
-  private static HttpMessageHandler CreateHandler()
-    =>
-#if NETCOREAPP2_1_OR_GREATER || NET5_0_OR_GREATER
-      new SocketsHttpHandler()
-#else
-      new HttpClientHandler()
-#endif
-      {
-        AllowAutoRedirect = false,
-        AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate,
-        MaxConnectionsPerServer = 1,
-        UseCookies = false,
-      };
-
-  private static HttpMessageHandler DefaultHandler { get; } = CreateHandler();
-
-  public static IHttpClientFactory Default { get; } = new TapoHttpClientFactory(
-    configureClient: null
-  );
-
-  /*
-   * instance members
-   */
-  private readonly Action<HttpClient>? configureClient;
-
-  internal TapoHttpClientFactory(
-    Action<HttpClient>? configureClient
-  )
-  {
-    this.configureClient = configureClient;
-  }
-
-  public HttpClient CreateClient(string name)
-  {
-    var client = new HttpClient(
-      handler: DefaultHandler,
-      disposeHandler: false
-    ) {
-      Timeout = TimeSpan.FromSeconds(20),
-    };
-
-    configureClient?.Invoke(client);
-
-    return client;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoSession.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoSession.cs
deleted file mode 100644
index 85fb0e8..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoSession.cs
+++ /dev/null
@@ -1,79 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Security.Cryptography;
-using System.Text.Json;
-using Microsoft.Extensions.Logging;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public sealed class TapoSession : IDisposable {
-  internal static readonly Uri RequestPath = new("/app", UriKind.Relative);
-
-  public Uri RequestPathAndQuery { get; private set; } = RequestPath;
-  public string? Token { get; private set; }
-  public string? SessionId { get; }
-  public DateTime ExpiresOn { get; }
-  public bool HasExpired => ExpiresOn <= DateTime.Now;
-
-  private Aes? aes;
-  private SecurePassThroughJsonConverterFactory? securePassThroughJsonConverterFactory;
-
-  internal JsonSerializerOptions SecurePassThroughJsonSerializerOptions { get; }
-
-  internal TapoSession(
-    ITapoCredentialIdentity? identity,
-    string? sessionId,
-    DateTime expiresOn,
-    ReadOnlySpan<byte> key,
-    ReadOnlySpan<byte> iv,
-    JsonSerializerOptions baseJsonSerializerOptions,
-    ILogger? logger
-  )
-  {
-    SessionId = sessionId;
-    ExpiresOn = expiresOn;
-
-    aes = Aes.Create();
-    aes.Mode = CipherMode.CBC;
-    aes.Padding = PaddingMode.PKCS7;
-    aes.Key = key.ToArray();
-    aes.IV = iv.ToArray();
-
-    securePassThroughJsonConverterFactory = new(
-      identity: identity,
-      encryptorForPassThroughRequest: aes.CreateEncryptor(),
-      decryptorForPassThroughResponse: aes.CreateDecryptor(),
-      baseJsonSerializerOptionsForPassThroughMessage: baseJsonSerializerOptions,
-      logger: logger
-    );
-
-    SecurePassThroughJsonSerializerOptions = new(baseJsonSerializerOptions);
-    SecurePassThroughJsonSerializerOptions.Converters.Add(securePassThroughJsonConverterFactory);
-  }
-
-  public void Dispose()
-  {
-    securePassThroughJsonConverterFactory?.Dispose();
-    securePassThroughJsonConverterFactory = null;
-
-    aes?.Dispose();
-    aes = null;
-  }
-
-  internal void SetToken(string token)
-  {
-    Token = token;
-
-    // append issued token to the request path query
-    RequestPathAndQuery = new Uri(
-      string.Concat(
-        RequestPath.ToString(), // only path
-        "?token=",
-        token
-      ),
-      UriKind.Relative
-    );
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoSessionCookieUtils.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoSessionCookieUtils.cs
deleted file mode 100644
index 279ae37..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo.Protocol/TapoSessionCookieUtils.cs
+++ /dev/null
@@ -1,110 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.Linq;
-using System.Net.Http;
-
-namespace Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-public static class TapoSessionCookieUtils {
-  private const string HeaderNameSetCookie = "Set-Cookie";
-
-  // Format and example of Set-Cookie header sent back by the Tapo HTTP server.
-  //   Set-Cookie: TP_SESSIONID=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX;TIMEOUT=1440
-  internal static readonly string HttpCookiePrefixForSessionId = "TP_SESSIONID="; // TP_SESSIONID=XXXXXX
-  internal static readonly string HttpCookieAttributePrefixForTimeout = "TIMEOUT="; // TIMEOUT=xxxx
-
-  public static bool TryGetCookie(
-    HttpResponseMessage response,
-    out string? sessionId,
-    out int? sessionTimeout
-  )
-  {
-    sessionId = default;
-    sessionTimeout = default;
-
-    return
-      response.Headers.TryGetValues(HeaderNameSetCookie, out var setCookieValues) &&
-      TryGetCookie(setCookieValues, out sessionId, out sessionTimeout);
-  }
-
-  public static bool TryGetCookie(
-    IEnumerable<string>? cookieValues,
-    out string? sessionId,
-    out int? sessionTimeout
-  )
-  {
-    sessionId = default;
-    sessionTimeout = default;
-
-    var cookieValueOfTPSessionId = cookieValues?.FirstOrDefault(
-      static val => val.StartsWith(HttpCookiePrefixForSessionId, StringComparison.Ordinal)
-    );
-
-    return
-      cookieValueOfTPSessionId is not null &&
-      TryParseCookie(
-        cookieValueOfTPSessionId,
-        id: out sessionId,
-        timeout: out sessionTimeout
-      );
-  }
-
-  // We cannot use System.Net.Cookie and its relevant collection classes to handle cookies
-  // since the Tapo HTTP server uses non-standard cookie attribute 'TIMEOUT'.
-  public static bool TryParseCookie(
-    ReadOnlySpan<char> cookie,
-    out string? id,
-    out int? timeout
-  )
-  {
-    id = default;
-    timeout = default;
-
-    var indexOfSessionIdPrefix = cookie.IndexOf(HttpCookiePrefixForSessionId, StringComparison.Ordinal);
-
-    if (indexOfSessionIdPrefix < 0)
-      return false;
-
-    var cookieName = cookie.Slice(indexOfSessionIdPrefix + HttpCookiePrefixForSessionId.Length);
-    var indexOfCookieNameTerminator = cookieName.IndexOf(';');
-
-    ReadOnlySpan<char> cookieAttributes;
-
-    if (0 <= indexOfCookieNameTerminator) {
-      id = cookieName.Slice(0, indexOfCookieNameTerminator).TrimEnd().ToString(); // for the case of "TP_SESSIONID=XXXXXXXXXX ;"
-
-      if (id.Length == 0)
-        return false;
-
-      cookieAttributes = cookie.Slice(indexOfSessionIdPrefix + HttpCookiePrefixForSessionId.Length + indexOfCookieNameTerminator);
-    }
-    else {
-      id = cookieName.TrimEnd().ToString(); // for the case of "TP_SESSIONID=XXXXXXXXXX"
-      return id.Length != 0; // no attributes
-    }
-
-    var indexOfTimeoutPrefix = cookieAttributes.IndexOf(HttpCookieAttributePrefixForTimeout, StringComparison.Ordinal);
-
-    if (0 <= indexOfTimeoutPrefix) {
-      var timeoutAttributeValue = cookieAttributes.Slice(indexOfTimeoutPrefix + HttpCookieAttributePrefixForTimeout.Length);
-      var indexOfTimeoutTerminator = timeoutAttributeValue.IndexOf(';');
-
-      if (0 <= indexOfTimeoutTerminator)
-        // for the case of "TIMEOUT=XXXXXXXXXX ;"
-        // no need to trim whitespaces here since NumberStyles.Integer trims leading and trailing white spaces
-        timeoutAttributeValue = timeoutAttributeValue.Slice(0, indexOfTimeoutTerminator);
-      else
-        timeoutAttributeValue = timeoutAttributeValue.TrimEnd(); // for the case of "TIMEOUT=XXXXXXXXXX"
-
-      const NumberStyles timeoutNumberStyles = NumberStyles.AllowTrailingWhite;
-
-      if (int.TryParse(timeoutAttributeValue, timeoutNumberStyles, provider: null, out var to))
-        timeout = to;
-    }
-
-    return true;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/L530.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/L530.cs
deleted file mode 100644
index c949754..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/L530.cs
+++ /dev/null
@@ -1,258 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public class L530 : TapoDevice {
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L530"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)" />
-  public L530(
-    string host,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      host: host,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L530"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(string, IServiceProvider)" />
-  public L530(
-    string host,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      host: host,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L530"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)" />
-  public L530(
-    IPAddress ipAddress,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      ipAddress: ipAddress,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L530"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(IPAddress, IServiceProvider)" />
-  public L530(
-    IPAddress ipAddress,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      ipAddress: ipAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L530"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(PhysicalAddress, string, string, IServiceProvider?)" />
-  public L530(
-    PhysicalAddress macAddress,
-    string email,
-    string password,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      macAddress: macAddress,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L530"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(PhysicalAddress, IServiceProvider)" />
-  public L530(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      macAddress: macAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L530"/> class.
-  /// </summary>
-  /// <inheritdoc
-  ///   cref="TapoDevice(IDeviceEndPointProvider, ITapoCredentialProvider?, Protocol.TapoClientExceptionHandler?, IServiceProvider?)"
-  ///   path="/exception | /param[@name='deviceEndPointProvider' or @name='credential' or @name='serviceProvider']"
-  /// />
-  public L530(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    ITapoCredentialProvider? credential = null,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      deviceEndPointProvider: deviceEndPointProvider,
-      credential: credential,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-#pragma warning disable SA1313, CA1822
-  private readonly record struct SetBrightnessParameter(
-    [property: JsonPropertyName("brightness")] int Brightness
-  ) {
-    [JsonPropertyName("device_on")]
-    public bool DeviceOn => true;
-  }
-
-  private readonly record struct SetColorTemperatureParameter(
-    [property: JsonPropertyName("color_temp")] int Temperature,
-    [property: JsonPropertyName("brightness")] int? Brightness
-  ) {
-    [JsonPropertyName("device_on")]
-    public bool DeviceOn => true;
-  }
-
-  private readonly record struct SetColorParameter(
-    [property: JsonPropertyName("hue")] int? Hue,
-    [property: JsonPropertyName("saturation")] int? Saturation,
-    [property: JsonPropertyName("brightness")] int? Brightness
-  ) {
-    [JsonPropertyName("device_on")]
-    public bool DeviceOn => true;
-  }
-#pragma warning restore SA1313, CA1822
-
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%].
-  /// </param>
-  public ValueTask SetBrightnessAsync(
-    int brightness,
-    CancellationToken cancellationToken = default
-  )
-    => SetDeviceInfoAsync(
-      new SetBrightnessParameter(
-        Brightness: MulticolorLightUtils.ValidateBrightnessValue(brightness, nameof(brightness)).Value
-      ),
-      cancellationToken
-    );
-
-  /// <param name="colorTemperature">
-  /// The color temperature in kelvin, in range of 2500~6500[K].
-  /// </param>
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%]. If <see langword="null"/>, the current brightness will be kept.
-  /// </param>
-  public ValueTask SetColorTemperatureAsync(
-    int colorTemperature,
-    int? brightness = null,
-    CancellationToken cancellationToken = default
-  )
-    => SetDeviceInfoAsync(
-      new SetColorTemperatureParameter(
-        Temperature: MulticolorLightUtils.ValidateColorTemperatureValue(colorTemperature, nameof(colorTemperature)),
-        Brightness: MulticolorLightUtils.ValidateBrightnessValue(brightness, nameof(brightness))
-      ),
-      cancellationToken
-    );
-
-  /// <param name="hue">
-  /// The hue of the color in degree, in range of 0~360[°].
-  /// </param>
-  /// <param name="saturation">
-  /// The saturation of the color in percent value, in range of 0~100[%].
-  /// </param>
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%]. If <see langword="null"/>, the current brightness will be kept.
-  /// </param>
-  public ValueTask SetColorAsync(
-    int hue,
-    int saturation,
-    int? brightness = null,
-    CancellationToken cancellationToken = default
-  )
-    => SetDeviceInfoAsync(
-      new SetColorParameter(
-        Hue: MulticolorLightUtils.ValidateHueValue(hue, nameof(hue)),
-        Saturation: MulticolorLightUtils.ValidateSaturationValue(saturation, nameof(saturation)),
-        Brightness: MulticolorLightUtils.ValidateBrightnessValue(brightness, nameof(brightness))
-      ),
-      cancellationToken
-    );
-
-  /// <param name="hue">
-  /// The hue of the color in degree, in range of 0~360[°].
-  /// </param>
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%]. If <see langword="null"/>, the current brightness will be kept.
-  /// </param>
-  public ValueTask SetColorHueAsync(
-    int hue,
-    int? brightness = null,
-    CancellationToken cancellationToken = default
-  )
-    => SetDeviceInfoAsync(
-      new SetColorParameter(
-        Hue: MulticolorLightUtils.ValidateHueValue(hue, nameof(hue)),
-        Saturation: null,
-        Brightness: MulticolorLightUtils.ValidateBrightnessValue(brightness, nameof(brightness))
-      ),
-      cancellationToken
-    );
-
-  /// <param name="saturation">
-  /// The saturation of the color in percent value, in range of 0~100[%].
-  /// </param>
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%]. If <see langword="null"/>, the current brightness will be kept.
-  /// </param>
-  public ValueTask SetColorSaturationAsync(
-    int saturation,
-    int? brightness = null,
-    CancellationToken cancellationToken = default
-  )
-    => SetDeviceInfoAsync(
-      new SetColorParameter(
-        Hue: null,
-        Saturation: MulticolorLightUtils.ValidateSaturationValue(saturation, nameof(saturation)),
-        Brightness: MulticolorLightUtils.ValidateBrightnessValue(brightness, nameof(brightness))
-      ),
-      cancellationToken
-    );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/L900.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/L900.cs
deleted file mode 100644
index 501b03e..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/L900.cs
+++ /dev/null
@@ -1,243 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public class L900 : TapoDevice {
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L900"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)" />
-  public L900(
-    string host,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      host: host,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L900"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(string, IServiceProvider)" />
-  public L900(
-    string host,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      host: host,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L900"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)" />
-  public L900(
-    IPAddress ipAddress,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      ipAddress: ipAddress,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L900"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(IPAddress, IServiceProvider)" />
-  public L900(
-    IPAddress ipAddress,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      ipAddress: ipAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L900"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(PhysicalAddress, string, string, IServiceProvider?)" />
-  public L900(
-    PhysicalAddress macAddress,
-    string email,
-    string password,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      macAddress: macAddress,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L900"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(PhysicalAddress, IServiceProvider)" />
-  public L900(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      macAddress: macAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="L900"/> class.
-  /// </summary>
-  /// <inheritdoc
-  ///   cref="TapoDevice(IDeviceEndPointProvider, ITapoCredentialProvider?, Protocol.TapoClientExceptionHandler?, IServiceProvider?)"
-  ///   path="/exception | /param[@name='deviceEndPointProvider' or @name='credential' or @name='serviceProvider']"
-  /// />
-  public L900(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    ITapoCredentialProvider? credential = null,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      deviceEndPointProvider: deviceEndPointProvider,
-      credential: credential,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-#pragma warning disable SA1313, CA1822
-  internal readonly record struct LightingEffectParameter(
-    [property: JsonPropertyName("enable")] int Enable
-  ) {
-    public static readonly LightingEffectParameter Disabled = new(0);
-  }
-
-  private readonly record struct SetBrightnessParameter(
-    [property: JsonPropertyName("brightness")] int Brightness
-  ) {
-    [JsonPropertyName("device_on")]
-    public bool DeviceOn => true;
-
-    [JsonPropertyName("lighting_effect")]
-    public LightingEffectParameter LightingEffect => LightingEffectParameter.Disabled;
-  }
-
-  private readonly record struct SetColorParameter(
-    [property: JsonPropertyName("hue")] int? Hue,
-    [property: JsonPropertyName("saturation")] int? Saturation,
-    [property: JsonPropertyName("brightness")] int? Brightness
-  ) {
-    [JsonPropertyName("device_on")]
-    public bool DeviceOn => true;
-
-    [JsonPropertyName("lighting_effect")]
-    public LightingEffectParameter LightingEffect => LightingEffectParameter.Disabled;
-  }
-#pragma warning restore SA1313, CA1822
-
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%].
-  /// </param>
-  public ValueTask SetBrightnessAsync(
-    int brightness,
-    CancellationToken cancellationToken = default
-  )
-    => SetDeviceInfoAsync(
-      new SetBrightnessParameter(
-        Brightness: MulticolorLightUtils.ValidateBrightnessValue(brightness, nameof(brightness)).Value
-      ),
-      cancellationToken
-    );
-
-  /// <param name="hue">
-  /// The hue of the color in degree, in range of 0~360[°].
-  /// </param>
-  /// <param name="saturation">
-  /// The saturation of the color in percent value, in range of 0~100[%].
-  /// </param>
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%]. If <see langword="null"/>, the current brightness will be kept.
-  /// </param>
-  public ValueTask SetColorAsync(
-    int hue,
-    int saturation,
-    int? brightness = null,
-    CancellationToken cancellationToken = default
-  )
-    => SetDeviceInfoAsync(
-      new SetColorParameter(
-        Hue: MulticolorLightUtils.ValidateHueValue(hue, nameof(hue)),
-        Saturation: MulticolorLightUtils.ValidateSaturationValue(saturation, nameof(saturation)),
-        Brightness: MulticolorLightUtils.ValidateBrightnessValue(brightness, nameof(brightness))
-      ),
-      cancellationToken
-    );
-
-  /// <param name="hue">
-  /// The hue of the color in degree, in range of 0~360[°].
-  /// </param>
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%]. If <see langword="null"/>, the current brightness will be kept.
-  /// </param>
-  public ValueTask SetColorHueAsync(
-    int hue,
-    int? brightness,
-    CancellationToken cancellationToken = default
-  )
-    => SetDeviceInfoAsync(
-      new SetColorParameter(
-        Hue: MulticolorLightUtils.ValidateHueValue(hue, nameof(hue)),
-        Saturation: null,
-        Brightness: MulticolorLightUtils.ValidateBrightnessValue(brightness, nameof(brightness))
-      ),
-      cancellationToken
-    );
-
-  /// <param name="saturation">
-  /// The saturation of the color in percent value, in range of 0~100[%].
-  /// </param>
-  /// <param name="brightness">
-  /// The brightness in percent value, in range of 1~100[%]. If <see langword="null"/>, the current brightness will be kept.
-  /// </param>
-  public ValueTask SetColorSaturationAsync(
-    int saturation,
-    int? brightness = null,
-    CancellationToken cancellationToken = default
-  )
-    => SetDeviceInfoAsync(
-      new SetColorParameter(
-        Hue: null,
-        Saturation: MulticolorLightUtils.ValidateSaturationValue(saturation, nameof(saturation)),
-        Brightness: MulticolorLightUtils.ValidateBrightnessValue(brightness, nameof(brightness))
-      ),
-      cancellationToken
-    );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/MulticolorLightUtils.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/MulticolorLightUtils.cs
deleted file mode 100644
index 6a720e7..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/MulticolorLightUtils.cs
+++ /dev/null
@@ -1,108 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-#if NULL_STATE_STATIC_ANALYSIS_ATTRIBUTES
-using System.Diagnostics.CodeAnalysis;
-#endif
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-internal static class MulticolorLightUtils {
-  private const int BrightnessMinValue = 1;
-  private const int BrightnessMaxValue = 100;
-
-  private const int HueMinValue = 0;
-  private const int HueMaxValue = 360;
-
-  private const int SaturationMinValue = 0;
-  private const int SaturationMaxValue = 100;
-
-  private static readonly string BrightnessVallueOutOfRangeExceptionMessage =
-    $"The value for brightness must be in range of {BrightnessMinValue}~{BrightnessMaxValue}";
-
-  private static readonly string HueValueOutOfRangeExceptionMessage =
-    $"The value for hue must be in range of {HueMinValue}~{HueMaxValue}";
-
-  private static readonly string SaturationValueOutOfRangeExceptionMessage =
-    $"The value for saturation must be in range of {SaturationMinValue}~{SaturationMaxValue}";
-
-#if false // TODO
-  private static readonly string ColorTemperatureValueOutOfRangeExceptionMessage =
-    "The value for saturation must be in range of {ColorTemperatureMinValue}~{ColorTemperatureMaxValue}";
-#endif
-
-#if LANG_VERSION_11_OR_GREATER && NULL_STATE_STATIC_ANALYSIS_ATTRIBUTES
-  [return: NotNullIfNotNull(nameof(newValue))]
-#endif
-  public static int? ValidateBrightnessValue(int? newValue, string paramName)
-  {
-    if (newValue == null)
-      return null;
-
-    if (newValue.Value is < BrightnessMinValue or > BrightnessMaxValue) {
-      throw new ArgumentOutOfRangeException(
-        paramName: paramName,
-        actualValue: newValue.Value,
-        message: BrightnessVallueOutOfRangeExceptionMessage
-      );
-    }
-
-    return newValue;
-  }
-
-#if LANG_VERSION_11_OR_GREATER && NULL_STATE_STATIC_ANALYSIS_ATTRIBUTES
-  [return: NotNullIfNotNull(nameof(newValue))]
-#endif
-  public static int? ValidateHueValue(int? newValue, string paramName)
-  {
-    if (newValue == null)
-      return null;
-
-    if (newValue.Value is < HueMinValue or > HueMaxValue) {
-      throw new ArgumentOutOfRangeException(
-        paramName: paramName,
-        actualValue: newValue.Value,
-        message: HueValueOutOfRangeExceptionMessage
-      );
-    }
-
-    return newValue;
-  }
-
-#if LANG_VERSION_11_OR_GREATER && NULL_STATE_STATIC_ANALYSIS_ATTRIBUTES
-  [return: NotNullIfNotNull(nameof(newValue))]
-#endif
-  public static int? ValidateSaturationValue(int? newValue, string paramName)
-  {
-    if (newValue == null)
-      return null;
-
-    if (newValue.Value is < SaturationMinValue or > SaturationMaxValue) {
-      throw new ArgumentOutOfRangeException(
-        paramName: paramName,
-        actualValue: newValue.Value,
-        message: SaturationValueOutOfRangeExceptionMessage
-      );
-    }
-
-    return newValue;
-  }
-
-#if LANG_VERSION_11_OR_GREATER && NULL_STATE_STATIC_ANALYSIS_ATTRIBUTES
-  [return: NotNullIfNotNull(nameof(newValue))]
-#endif
-  public static int ValidateColorTemperatureValue(int newValue, string paramName)
-  {
-#if false // TODO
-    if (newValue is < ColorTemperatureMinValue or > ColorTemperatureMaxValue) {
-      throw new ArgumentOutOfRangeException(
-        paramName: paramName,
-        actualValue: newValue,
-        message: ColorTemperatureValueOutOfRangeExceptionMessage
-      );
-    }
-#endif
-
-    return newValue;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/P105.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/P105.cs
deleted file mode 100644
index 80b86b7..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/P105.cs
+++ /dev/null
@@ -1,132 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public class P105 : TapoDevice {
-  /// <summary>
-  /// Initializes a new instance of the <see cref="P105"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)" />
-  public P105(
-    string host,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      host: host,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="P105"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(string, IServiceProvider)" />
-  public P105(
-    string host,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      host: host,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="P105"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)" />
-  public P105(
-    IPAddress ipAddress,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      ipAddress: ipAddress,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="P105"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(IPAddress, IServiceProvider)" />
-  public P105(
-    IPAddress ipAddress,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      ipAddress: ipAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="P105"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(PhysicalAddress, string, string, IServiceProvider?)" />
-  public P105(
-    PhysicalAddress macAddress,
-    string email,
-    string password,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      macAddress: macAddress,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="P105"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(PhysicalAddress, IServiceProvider)" />
-  public P105(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    : base(
-      macAddress: macAddress,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="P105"/> class.
-  /// </summary>
-  /// <inheritdoc
-  ///   cref="TapoDevice(IDeviceEndPointProvider, ITapoCredentialProvider?, Protocol.TapoClientExceptionHandler?, IServiceProvider?)"
-  ///   path="/exception | /param[@name='deviceEndPointProvider' or @name='credential' or @name='serviceProvider']"
-  /// />
-  public P105(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    ITapoCredentialProvider? credential = null,
-    IServiceProvider? serviceProvider = null
-  )
-    : base(
-      deviceEndPointProvider: deviceEndPointProvider,
-      credential: credential,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoAuthenticationException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoAuthenticationException.cs
deleted file mode 100644
index 6a6b968..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoAuthenticationException.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public class TapoAuthenticationException : TapoProtocolException {
-  public TapoAuthenticationException(
-    string message,
-    Uri endPoint,
-    Exception? innerException = null
-  )
-    : base(
-      message: message,
-      endPoint: endPoint,
-      innerException: innerException
-    )
-  {
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoCredentailProviderServiceCollectionExtensions.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoCredentailProviderServiceCollectionExtensions.cs
deleted file mode 100644
index 161d777..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoCredentailProviderServiceCollectionExtensions.cs
+++ /dev/null
@@ -1,65 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.DependencyInjection.Extensions;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public static class TapoCredentailProviderServiceCollectionExtensions {
-  public static IServiceCollection AddTapoCredential(
-    this IServiceCollection services,
-    string email,
-    string password
-  )
-  {
-    if (services is null)
-      throw new ArgumentNullException(nameof(services));
-
-    services.TryAdd(
-      ServiceDescriptor.Singleton(
-        typeof(ITapoCredentialProvider),
-        TapoCredentialProviderFactory.CreateFromPlainText(email, password)
-      )
-    );
-
-    return services;
-  }
-
-  public static IServiceCollection AddTapoBase64EncodedCredential(
-    this IServiceCollection services,
-    string base64UserNameSHA1Digest,
-    string base64Password
-  )
-  {
-    if (services is null)
-      throw new ArgumentNullException(nameof(services));
-
-    services.TryAdd(
-      ServiceDescriptor.Singleton(
-        typeof(ITapoCredentialProvider),
-        TapoCredentialProviderFactory.CreateFromBase64EncodedText(base64UserNameSHA1Digest, base64Password)
-      )
-    );
-
-    return services;
-  }
-
-  public static IServiceCollection AddTapoCredentialProvider(
-    this IServiceCollection services,
-    ITapoCredentialProvider credentialProvider
-  )
-  {
-    if (services is null)
-      throw new ArgumentNullException(nameof(services));
-    if (credentialProvider is null)
-      throw new ArgumentNullException(nameof(credentialProvider));
-
-    services.TryAdd(
-      ServiceDescriptor.Singleton(typeof(ITapoCredentialProvider), credentialProvider)
-    );
-
-    return services;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoCredentialProviderFactory.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoCredentialProviderFactory.cs
deleted file mode 100644
index 65ef672..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoCredentialProviderFactory.cs
+++ /dev/null
@@ -1,76 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Text;
-using System.Text.Json;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-internal static class TapoCredentialProviderFactory {
-  public static ITapoCredentialProvider CreateFromPlainText(string email, string password)
-    => new SingleIdentityStringCredentialProvider(
-      username: email ?? throw new ArgumentNullException(nameof(email)),
-      password: password ?? throw new ArgumentNullException(nameof(password)),
-      isPlainText: true
-    );
-
-  public static ITapoCredentialProvider CreateFromBase64EncodedText(
-    string base64UserNameSHA1Digest,
-    string base64Password
-  )
-    => new SingleIdentityStringCredentialProvider(
-      username: base64UserNameSHA1Digest ?? throw new ArgumentNullException(nameof(base64UserNameSHA1Digest)),
-      password: base64Password ?? throw new ArgumentNullException(nameof(base64Password)),
-      isPlainText: false
-    );
-
-  private sealed class SingleIdentityStringCredentialProvider : ITapoCredentialProvider, ITapoCredential {
-    private readonly byte[] utf8Username;
-    private readonly byte[] utf8Password;
-    private readonly bool isPlainText;
-
-    public SingleIdentityStringCredentialProvider(
-      string username,
-      string password,
-      bool isPlainText
-    )
-    {
-      utf8Username = Encoding.UTF8.GetBytes(username);
-      utf8Password = Encoding.UTF8.GetBytes(password);
-      this.isPlainText = isPlainText;
-    }
-
-    ITapoCredential ITapoCredentialProvider.GetCredential(ITapoCredentialIdentity? identity) => this;
-
-    void IDisposable.Dispose() { /* nothing to do */ }
-
-    void ITapoCredential.WritePasswordPropertyValue(Utf8JsonWriter writer)
-    {
-      if (isPlainText)
-        writer.WriteBase64StringValue(utf8Password);
-      else
-        writer.WriteStringValue(utf8Password);
-    }
-
-    void ITapoCredential.WriteUsernamePropertyValue(Utf8JsonWriter writer)
-    {
-      if (isPlainText) {
-        Span<byte> buffer = stackalloc byte[TapoCredentialUtils.HexSHA1HashSizeInBytes];
-
-        try {
-          if (!TapoCredentialUtils.TryConvertToHexSHA1Hash(utf8Username, buffer, out _))
-            throw new InvalidOperationException("failed to encode username property");
-
-          writer.WriteBase64StringValue(buffer);
-        }
-        finally {
-          buffer.Clear();
-        }
-      }
-      else {
-        writer.WriteStringValue(utf8Username);
-      }
-    }
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDevice.Create.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDevice.Create.cs
deleted file mode 100644
index e6e13e1..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDevice.Create.cs
+++ /dev/null
@@ -1,99 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-#pragma warning disable IDE0040
-partial class TapoDevice {
-#pragma warning restore IDE0040
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)"/>
-  public static TapoDevice Create(
-    string host,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    => new(
-      host: host,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    );
-
-  /// <inheritdoc cref="TapoDevice(string, IServiceProvider)"/>
-  public static TapoDevice Create(
-    string host,
-    IServiceProvider serviceProvider
-  )
-    => new(
-      host: host,
-      serviceProvider: serviceProvider
-    );
-
-  /// <inheritdoc cref="TapoDevice(IPAddress, string, string, IServiceProvider?)"/>
-  public static TapoDevice Create(
-    IPAddress ipAddress,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    => new(
-      ipAddress: ipAddress,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    );
-
-  /// <inheritdoc cref="TapoDevice(IPAddress, IServiceProvider)"/>
-  public static TapoDevice Create(
-    IPAddress ipAddress,
-    IServiceProvider serviceProvider
-  )
-    => new(
-      ipAddress: ipAddress,
-      serviceProvider: serviceProvider
-    );
-
-  /// <inheritdoc cref="TapoDevice(PhysicalAddress, string, string, IServiceProvider)"/>
-  public static TapoDevice Create(
-    PhysicalAddress macAddress,
-    string email,
-    string password,
-    IServiceProvider serviceProvider
-  )
-    => new(
-      macAddress: macAddress,
-      email: email,
-      password: password,
-      serviceProvider: serviceProvider
-    );
-
-  /// <inheritdoc cref="TapoDevice(PhysicalAddress, IServiceProvider)"/>
-  public static TapoDevice Create(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    => new(
-      macAddress: macAddress,
-      serviceProvider: serviceProvider
-    );
-
-  /// <inheritdoc
-  ///   cref="TapoDevice(IDeviceEndPointProvider, ITapoCredentialProvider?, Protocol.TapoClientExceptionHandler?, IServiceProvider?)"
-  ///   path="/summary | /exception | /param[@name='deviceEndPointProvider' or @name='credential' or @name='serviceProvider']"
-  /// />
-  public static TapoDevice Create(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    ITapoCredentialProvider? credential = null,
-    IServiceProvider? serviceProvider = null
-  )
-    => new(
-      deviceEndPointProvider: deviceEndPointProvider,
-      credential: credential,
-      serviceProvider: serviceProvider
-    );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDevice.SetDeviceInfo.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDevice.SetDeviceInfo.cs
deleted file mode 100644
index 0524214..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDevice.SetDeviceInfo.cs
+++ /dev/null
@@ -1,46 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.Text.Json.Serialization;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-#pragma warning disable IDE0040
-partial class TapoDevice {
-#pragma warning restore IDE0040
-#pragma warning disable CA1822
-  private readonly struct TurnOnParameter {
-    [JsonPropertyName("device_on")]
-    public bool DeviceOn => true;
-  }
-
-  private readonly struct TurnOffParameter {
-    [JsonPropertyName("device_on")]
-    public bool DeviceOn => false;
-  }
-#pragma warning restore CA1822
-
-  public ValueTask TurnOnAsync(CancellationToken cancellationToken = default)
-    => SetDeviceInfoAsync(
-      default(TurnOnParameter),
-      cancellationToken
-    );
-
-  public ValueTask TurnOffAsync(CancellationToken cancellationToken = default)
-    => SetDeviceInfoAsync(
-      default(TurnOffParameter),
-      cancellationToken
-    );
-
-  /// <summary>
-  /// Sets the on/off state of the device according to the parameter <paramref name="newOnOffState" />.
-  /// </summary>
-  /// <param name="newOnOffState">
-  /// The value that indicates new on/off state to be set. <see langword="true"/> for on, otherwise off.
-  /// </param>
-  public ValueTask SetOnOffStateAsync(bool newOnOffState, CancellationToken cancellationToken = default)
-    => newOnOffState
-      ? TurnOnAsync(cancellationToken)
-      : TurnOffAsync(cancellationToken);
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDevice.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDevice.cs
deleted file mode 100644
index 96fed05..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDevice.cs
+++ /dev/null
@@ -1,509 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-#if SYSTEM_DIAGNOSTICS_UNREACHABLEEXCEPTION
-using System.Diagnostics;
-#endif
-using System.Net;
-using System.Net.Http;
-using System.Net.NetworkInformation;
-using System.Text.Json;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
-using Smdn.TPSmartHomeDevices.Tapo.Credentials;
-using Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public partial class TapoDevice : ITapoCredentialIdentity, IDisposable {
-  private IDeviceEndPointProvider? deviceEndPointProvider; // if null, it indicates a 'disposed' state.
-  protected bool IsDisposed => deviceEndPointProvider is null;
-
-  private readonly ITapoCredentialProvider? credential;
-  private readonly TapoClientExceptionHandler exceptionHandler;
-  private readonly IServiceProvider? serviceProvider;
-  public string TerminalUuidString { get; } // must be in the format of 00000000-0000-0000-0000-000000000000
-
-  private TapoClient? client;
-
-  /// <summary>
-  /// Gets a current session information represented by <see cref="TapoSession" />.
-  /// </summary>
-  /// <value>
-  /// The <see cref="TapoSession" />. <see langword="null"/> if the session for this instance has not been established or been disposed.
-  /// </value>
-  public TapoSession? Session => client?.Session;
-
-  string ITapoCredentialIdentity.Name {
-    get {
-      ThrowIfDisposed();
-      return $"{GetType().FullName} ({deviceEndPointProvider})";
-    }
-  }
-
-  /// <summary>
-  /// Gets or sets the timeout value for HTTP requests.
-  /// </summary>
-  /// <value>
-  /// <para>If the value is <see langword="null"/>, the timeout value configured by the <see cref="IHttpClientFactory"/> is used. Otherwise, the specified <see cref="TimeSpan"/> is used for the timeout value for this instance.</para>
-  /// <para>Therefore, even if the value is <see langword="null"/>, a timeout may still occur. If you do not want to timeout for this instance, specify <see cref="Timeout.InfiniteTimeSpan"/> explicitly.</para>
-  /// </value>
-  public TimeSpan? Timeout { get; set; }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="TapoDevice"/> class with specifying the device endpoint by host name.
-  /// </summary>
-  /// <param name="host">
-  /// A <see cref="string"/> that holds the host name or IP address string, representing the device endpoint.
-  /// </param>
-  /// <param name="email">
-  /// A <see cref="string"/> that holds the e-mail address of the Tapo account used for authentication.
-  /// </param>
-  /// <param name="password">
-  /// A <see cref="string"/> that holds the password of the Tapo account used for authentication.
-  /// </param>
-  /// <param name="serviceProvider">
-  /// A <see cref="IServiceProvider"/>.
-  /// </param>
-  protected TapoDevice(
-    string host,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    : this(
-      deviceEndPointProvider: TapoDeviceEndPointProvider.Create(host),
-      credential: TapoCredentialProviderFactory.CreateFromPlainText(email, password),
-      exceptionHandler: null,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <param name="host">
-  /// A <see cref="string"/> that holds the host name or IP address string, representing the device endpoint.
-  /// </param>
-  /// <param name="serviceProvider">
-  /// A <see cref="IServiceProvider"/>.
-  /// <see cref="ITapoCredentialProvider"/> must be registered in order to retrieve the credentials required for authentication.
-  /// </param>
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)" path="/summary"/>
-  protected TapoDevice(
-    string host,
-    IServiceProvider serviceProvider
-  )
-    : this(
-      deviceEndPointProvider: TapoDeviceEndPointProvider.Create(host),
-      credential: null,
-      exceptionHandler: null,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="TapoDevice"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <param name="ipAddress">
-  /// A <see cref="IPAddress"/> that holds the IP address representing the device end point.
-  /// </param>
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)" path="/param[@name='email' or @name='password' or @name='serviceProvider']"/>
-  protected TapoDevice(
-    IPAddress ipAddress,
-    string email,
-    string password,
-    IServiceProvider? serviceProvider = null
-  )
-    : this(
-      deviceEndPointProvider: TapoDeviceEndPointProvider.Create(ipAddress),
-      credential: TapoCredentialProviderFactory.CreateFromPlainText(email, password),
-      exceptionHandler: null,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="TapoDevice"/> class with specifying the device endpoint by IP address.
-  /// </summary>
-  /// <inheritdoc cref="TapoDevice(IPAddress, string, string, IServiceProvider?)" path="/summary | /param[@name='ipAddress']"/>
-  /// <inheritdoc cref="TapoDevice(string, IServiceProvider)" path="/param[@name='serviceProvider']"/>
-  protected TapoDevice(
-    IPAddress ipAddress,
-    IServiceProvider serviceProvider
-  )
-    : this(
-      deviceEndPointProvider: TapoDeviceEndPointProvider.Create(ipAddress),
-      credential: null,
-      exceptionHandler: null,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="TapoDevice"/> class with specifying the device endpoint by MAC address.
-  /// </summary>
-  /// <param name="macAddress">
-  /// A <see cref="PhysicalAddress"/> that holds the MAC address representing the device end point.
-  /// </param>
-  /// <param name="serviceProvider">
-  /// A <see cref="IServiceProvider"/>.
-  /// <see cref="IDeviceEndPointFactory{PhysicalAddress}"/> must be registered to create an end point from the <paramref name="macAddress"/>.
-  /// </param>
-  /// <exception cref="InvalidOperationException">No service for type <see cref="IDeviceEndPointFactory{PhysicalAddress}"/> has been registered for <paramref name="serviceProvider"/>.</exception>
-  /// <inheritdoc cref="TapoDevice(string, string, string, IServiceProvider?)" path="/param[@name='email' or @name='password']"/>
-  protected TapoDevice(
-    PhysicalAddress macAddress,
-    string email,
-    string password,
-    IServiceProvider serviceProvider
-  )
-    : this(
-      deviceEndPointProvider: TapoDeviceEndPointProvider.Create(macAddress, serviceProvider),
-      credential: TapoCredentialProviderFactory.CreateFromPlainText(email, password),
-      exceptionHandler: null,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <param name="serviceProvider">
-  /// A <see cref="IServiceProvider"/>.
-  /// <see cref="ITapoCredentialProvider"/> must be registered in order to retrieve the credentials required for authentication.
-  /// <see cref="IDeviceEndPointFactory&lt;PhysicalAddress&gt;"/> must also be registered to create an <see cref="IDeviceEndPointProvider" />, corresponding to the <paramref name="macAddress"/>.
-  /// </param>
-  /// <exception cref="InvalidOperationException">No service for type <see cref="ITapoCredentialProvider"/> and/or <see cref="IDeviceEndPointFactory{PhysicalAddress}"/> has been registered for <paramref name="serviceProvider"/>.</exception>
-  /// <inheritdoc cref="TapoDevice(PhysicalAddress, string, string, IServiceProvider?)" path="/summary | /param[@name='macAddress']"/>
-  protected TapoDevice(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    : this(
-      deviceEndPointProvider: TapoDeviceEndPointProvider.Create(macAddress, serviceProvider),
-      credential: null,
-      exceptionHandler: null,
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  /// <summary>
-  /// Initializes a new instance of the <see cref="TapoDevice"/> class.
-  /// </summary>
-  /// <param name="deviceEndPointProvider">
-  /// A <see cref="IDeviceEndPointProvider"/> that provides the device end point.
-  /// </param>
-  /// <param name="credential">
-  /// A <see cref="ITapoCredentialProvider"/> that provides the credentials required for authentication.
-  /// </param>
-  /// <param name="exceptionHandler">
-  /// A <see cref="TapoClientExceptionHandler"/> that determines the handling of the exception thrown by the <see cref="TapoClient"/>.
-  /// </param>
-  /// <param name="serviceProvider">
-  /// A <see cref="IServiceProvider"/>.
-  /// </param>
-  /// <exception cref="InvalidOperationException">No service for type <see cref="ITapoCredentialProvider"/> and/or <see cref="IDeviceEndPointFactory{PhysicalAddress}"/> has been registered for <paramref name="serviceProvider"/>.</exception>
-  /// <exception cref="ArgumentNullException">
-  /// <paramref name="deviceEndPointProvider"/> is <see langword="null"/>, or both <paramref name="credential"/> and <paramref name="serviceProvider"/> are <see langword="null"/>.
-  /// </exception>
-  protected TapoDevice(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    ITapoCredentialProvider? credential = null,
-    TapoClientExceptionHandler? exceptionHandler = null,
-    IServiceProvider? serviceProvider = null
-  )
-  {
-    this.deviceEndPointProvider = deviceEndPointProvider ?? throw new ArgumentNullException(nameof(deviceEndPointProvider));
-    this.credential = credential
-      ?? (serviceProvider ?? throw new ArgumentNullException(nameof(serviceProvider))).GetRequiredService<ITapoCredentialProvider>();
-    this.exceptionHandler = exceptionHandler
-      ?? serviceProvider?.GetService<TapoClientExceptionHandler>()
-      ?? TapoClientExceptionHandler.Default;
-    this.serviceProvider = serviceProvider;
-
-    TerminalUuidString = Guid.NewGuid().ToString("D", provider: null); // TODO: support DI
-  }
-
-  public void Dispose()
-  {
-    Dispose(true);
-    GC.SuppressFinalize(this);
-  }
-
-  protected virtual void Dispose(bool disposing)
-  {
-    if (!disposing)
-      return;
-
-    deviceEndPointProvider = null; // mark as disposed
-
-    client?.Dispose();
-    client = null;
-  }
-
-  private void ThrowIfDisposed()
-  {
-    if (IsDisposed)
-      throw new ObjectDisposedException(GetType().FullName);
-  }
-
-  public ValueTask<EndPoint> ResolveEndPointAsync(
-    CancellationToken cancellationToken = default
-  )
-  {
-    ThrowIfDisposed();
-
-    return cancellationToken.IsCancellationRequested
-      ?
-#if SYSTEM_THREADING_TASKS_VALUETASK_FROMCANCELED
-        ValueTask.FromCanceled<EndPoint>(cancellationToken)
-#else
-        ValueTaskShim.FromCanceled<EndPoint>(cancellationToken)
-#endif
-      : deviceEndPointProvider.ResolveOrThrowAsync(
-        defaultPort: TapoClient.DefaultPort,
-        cancellationToken: cancellationToken
-      );
-  }
-
-  protected ValueTask EnsureSessionEstablishedAsync(
-    CancellationToken cancellationToken = default
-  )
-  {
-    ThrowIfDisposed();
-
-    return EnsureSessionEstablishedAsyncCore(
-      cancellationToken: cancellationToken
-    );
-  }
-
-  private async ValueTask EnsureSessionEstablishedAsyncCore(
-    CancellationToken cancellationToken
-  )
-  {
-    cancellationToken.ThrowIfCancellationRequested();
-
-    var endPoint = await ResolveEndPointAsync(cancellationToken).ConfigureAwait(false);
-
-    if (client is not null && !client.EndPoint.Equals(endPoint)) {
-      // endpoint has changed, recreate client with new endpoint
-      client.Logger?.LogInformation($"Endpoint has changed: {client.EndPoint} -> {endPoint}");
-      client.Dispose();
-      client = null;
-    }
-
-    client ??= new TapoClient(
-      endPoint: endPoint,
-      httpClientFactory: serviceProvider?.GetService<IHttpClientFactory>(),
-      logger: serviceProvider?.GetService<ILoggerFactory>()?.CreateLogger(GenerateLoggerCategoryName())
-    );
-
-    string GenerateLoggerCategoryName()
-      => deviceEndPointProvider is IDynamicDeviceEndPointProvider
-        ? $"{nameof(TapoClient)}({endPoint}, {deviceEndPointProvider})"
-        : $"{nameof(TapoClient)}({endPoint})";
-
-    if (client.Session is not null)
-      return;
-
-    cancellationToken.ThrowIfCancellationRequested();
-
-    try {
-      await client.AuthenticateAsync(
-        identity: this,
-        credential: credential,
-        cancellationToken: cancellationToken
-      ).ConfigureAwait(false);
-    }
-    catch {
-      client.Dispose();
-      client = null;
-
-      throw;
-    }
-  }
-
-  protected ValueTask SendRequestAsync<TRequest, TResponse>(
-    TRequest request,
-    CancellationToken cancellationToken = default
-  )
-    where TRequest : ITapoPassThroughRequest
-    where TResponse : ITapoPassThroughResponse
-  {
-    if (request is null)
-      throw new ArgumentNullException(nameof(request));
-
-    ThrowIfDisposed();
-
-    return SendRequestAsyncCore(request, cancellationToken);
-
-    async ValueTask SendRequestAsyncCore(TRequest req, CancellationToken ct)
-      => await SendRequestAsync<TRequest, TResponse, None /* as an alternative to System.Void */>(
-        request: req,
-        composeResult: static _ => default,
-        cancellationToken: ct
-      ).ConfigureAwait(false);
-  }
-
-  protected ValueTask<TResult> SendRequestAsync<TRequest, TResponse, TResult>(
-    TRequest request,
-    Func<TResponse, TResult> composeResult,
-    CancellationToken cancellationToken = default
-  )
-    where TRequest : ITapoPassThroughRequest
-    where TResponse : ITapoPassThroughResponse
-  {
-    if (request is null)
-      throw new ArgumentNullException(nameof(request));
-    if (composeResult is null)
-      throw new ArgumentNullException(nameof(composeResult));
-
-    ThrowIfDisposed();
-
-    return SendRequestAsyncCore(
-      request: request,
-      composeResult: composeResult,
-      cancellationToken: cancellationToken
-    );
-  }
-
-  private async ValueTask<TResult> SendRequestAsyncCore<TRequest, TResponse, TResult>(
-    TRequest request,
-    Func<TResponse, TResult> composeResult,
-    CancellationToken cancellationToken = default
-  )
-    where TRequest : ITapoPassThroughRequest
-    where TResponse : ITapoPassThroughResponse
-  {
-    const int maxAttempts = 5;
-    var delay = TimeSpan.Zero;
-
-    for (var attempt = 0; attempt < maxAttempts; attempt++) {
-      if (TimeSpan.Zero < delay)
-        await Task.Delay(delay, cancellationToken).ConfigureAwait(false);
-
-      await EnsureSessionEstablishedAsync(cancellationToken).ConfigureAwait(false);
-
-      cancellationToken.ThrowIfCancellationRequested();
-
-      client.Timeout = Timeout;
-
-      try {
-        var response = await client.SendRequestAsync<TRequest, TResponse>(
-          request: request,
-          cancellationToken: cancellationToken
-        ).ConfigureAwait(false);
-
-        return composeResult(response);
-      }
-      catch (Exception ex) {
-        // OperationCanceledException and TaskCanceledException due to a cancel
-        // request triggered by a given CancellationToken must not be handled
-        // by exception handler, just rethrow instead.
-        var handling = (
-          ex is OperationCanceledException exOperationCanceled &&
-          exOperationCanceled.CancellationToken.Equals(cancellationToken)
-        )
-          ? TapoClientExceptionHandling.Throw
-          : exceptionHandler.DetermineHandling(this, ex, attempt, client.Logger);
-
-        static void LogRequest(ILogger logger, TRequest req)
-          => logger.LogError(JsonSerializer.Serialize(req));
-
-        client.Logger?.LogTrace(
-          "Exception handling for {TypeOfException}: {ExceptionHandling}",
-          ex.GetType().FullName,
-          handling
-        );
-
-        if (client.Logger is not null && !handling.ShouldRetry)
-          LogRequest(client.Logger, request);
-
-        if (handling.ShouldInvalidateEndPoint) {
-          if (deviceEndPointProvider is IDynamicDeviceEndPointProvider dynamicEndPoint) {
-            // mark end point as invalid to have the end point refreshed or rescanned
-            dynamicEndPoint.InvalidateEndPoint();
-          }
-          else {
-            // disallow retry
-            handling = handling with { ShouldRetry = false };
-          }
-        }
-
-        if (handling.ShouldRetry) {
-          /*
-           * retry
-           */
-          delay = handling.RetryAfter;
-
-          if (handling.ShouldReconnect) {
-            client.Dispose();
-            client = null;
-          }
-
-          continue;
-        }
-
-        /*
-         * rethrow
-         */
-        var endPointUri = client.EndPointUri;
-
-        client.Dispose();
-        client = null;
-
-        if (handling.ShouldWrapIntoTapoProtocolException) {
-          if (
-            ex is TaskCanceledException exTaskCanceled &&
-            exTaskCanceled.InnerException is TimeoutException exInnerTimeout
-          ) {
-            throw new TapoProtocolException(
-              message: $"Request timed out; {ex.Message}",
-              endPoint: endPointUri,
-              innerException: exInnerTimeout
-            );
-          }
-          else {
-            throw new TapoProtocolException(
-              message: "Unhandled exception",
-              endPoint: endPointUri,
-              innerException: ex
-            );
-          }
-        }
-
-        throw;
-      } // try
-    } // for
-
-#if SYSTEM_DIAGNOSTICS_UNREACHABLEEXCEPTION
-    throw new UnreachableException();
-#else
-    throw new NotImplementedException("unreachable");
-#endif
-  }
-
-  public ValueTask<TapoDeviceInfo> GetDeviceInfoAsync(
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync<GetDeviceInfoRequest, GetDeviceInfoResponse, TapoDeviceInfo>(
-      request: default,
-      composeResult: static resp => resp.Result,
-      cancellationToken: cancellationToken
-    );
-
-  public ValueTask SetDeviceInfoAsync<TParameters>(
-    TParameters parameters,
-    CancellationToken cancellationToken = default
-  )
-    => SendRequestAsync<SetDeviceInfoRequest<TParameters>, SetDeviceInfoResponse>(
-      request: new(
-        terminalUuid: TerminalUuidString,
-        parameters: parameters
-      ),
-      cancellationToken: cancellationToken
-    );
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDeviceEndPointProvider.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDeviceEndPointProvider.cs
deleted file mode 100644
index 876e6e5..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDeviceEndPointProvider.cs
+++ /dev/null
@@ -1,28 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public static class TapoDeviceEndPointProvider {
-  public static IDeviceEndPointProvider Create(string host)
-    => DeviceEndPointProvider.Create(host, TapoClient.DefaultPort);
-
-  public static IDeviceEndPointProvider Create(IPAddress ipAddress)
-    => DeviceEndPointProvider.Create(ipAddress, TapoClient.DefaultPort);
-
-  public static IDeviceEndPointProvider Create(
-    PhysicalAddress macAddress,
-    IServiceProvider serviceProvider
-  )
-    => DeviceEndPointProvider.Create(macAddress, TapoClient.DefaultPort, serviceProvider);
-
-  public static IDeviceEndPointProvider Create(
-    PhysicalAddress macAddress,
-    IDeviceEndPointFactory<PhysicalAddress> endPointFactory
-  )
-    => DeviceEndPointProvider.Create(macAddress, TapoClient.DefaultPort, endPointFactory);
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDeviceInfo.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDeviceInfo.cs
deleted file mode 100644
index a6a8110..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoDeviceInfo.cs
+++ /dev/null
@@ -1,110 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Collections.Generic;
-using System.Net;
-using System.Net.NetworkInformation;
-using System.Text.Json.Serialization;
-using Smdn.TPSmartHomeDevices.Json;
-using Smdn.TPSmartHomeDevices.Tapo.Json;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public class TapoDeviceInfo {
-  [JsonIgnore]
-  public DateTimeOffset TimeStamp { get; } = DateTimeOffset.Now;
-
-  /*
-   * storage for the device-specific informations
-   */
-  [JsonExtensionData]
-  internal IDictionary<string, object>? ExtraData { get; init; }
-
-  /*
-   * properties for the informations common to the devices
-   */
-  [JsonPropertyName("device_id")]
-  public string? Id { get; init; }
-
-  [JsonPropertyName("type")]
-  public string? TypeName { get; init; }
-
-  [JsonPropertyName("model")]
-  public string? ModelName { get; init; }
-
-  [JsonPropertyName("fw_id")]
-  public string? FirmwareId { get; init; }
-
-  [JsonPropertyName("fw_ver")]
-  public string? FirmwareVersion { get; init; }
-
-  [JsonPropertyName("hw_id")]
-  public string? HardwareId { get; init; }
-
-  [JsonPropertyName("hw_ver")]
-  public string? HardwareVersion { get; init; }
-
-  [JsonPropertyName("oem_id")]
-  public string? OemId { get; init; }
-
-  [JsonPropertyName("mac")]
-  [JsonConverter(typeof(MacAddressJsonConverter))]
-  public PhysicalAddress? MacAddress { get; init; }
-
-  [JsonPropertyName("specs")]
-  public string? HardwareSpecifications { get; init; }
-
-  [JsonPropertyName("lang")]
-  public string? Language { get; init; }
-
-  [JsonPropertyName("device_on")]
-  public bool IsOn { get; init; }
-
-  [JsonPropertyName("on_time")]
-  [JsonConverter(typeof(TimeSpanInSecondsJsonConverter))]
-  public TimeSpan? OnTimeDuration { get; init; }
-
-  [JsonPropertyName("overheated")]
-  public bool IsOverheated { get; init; }
-
-  [JsonPropertyName("nickname")]
-  [JsonConverter(typeof(TapoBase64StringJsonConverter))]
-  public string? NickName { get; init; }
-
-  [JsonPropertyName("avatar")]
-  public string? Avatar { get; init; }
-
-  [JsonPropertyName("time_diff")]
-  [JsonConverter(typeof(TimeSpanInMinutesJsonConverter))]
-  public TimeSpan? TimeZoneOffset { get; init; }
-
-  [JsonPropertyName("region")]
-  public string? TimeZoneRegion { get; init; }
-
-  /// <summary>Gets a value that indicates a longitude in decimal degrees.</summary>
-  [JsonPropertyName("longitude")]
-  [JsonConverter(typeof(GeolocationInDecimalDegreesJsonConverter))]
-  public decimal? GeolocationLongitude { get; init; }
-
-  /// <summary>Gets a value that indicates a latitude in decimal degrees.</summary>
-  [JsonPropertyName("latitude")]
-  [JsonConverter(typeof(GeolocationInDecimalDegreesJsonConverter))]
-  public decimal? GeolocationLatitude { get; init; }
-
-  [JsonPropertyName("has_set_location_info")]
-  public bool HasGeolocationInfoSet { get; init; }
-
-  [JsonPropertyName("ip")]
-  [JsonConverter(typeof(TapoIPAddressJsonConverter))]
-  public IPAddress? IPAddress { get; init; }
-
-  [JsonPropertyName("ssid")]
-  [JsonConverter(typeof(TapoBase64StringJsonConverter))]
-  public string? NetworkSsid { get; init; }
-
-  [JsonPropertyName("signal_level")]
-  public int? NetworkSignalLevel { get; init; }
-
-  [JsonPropertyName("rssi")]
-  public decimal? NetworkRssi { get; init; }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoErrorResponseException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoErrorResponseException.cs
deleted file mode 100644
index 34d207c..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoErrorResponseException.cs
+++ /dev/null
@@ -1,32 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public class TapoErrorResponseException : TapoProtocolException {
-  internal static void ThrowIfError(Uri requestUri, string requestMethod, ErrorCode errorCode)
-  {
-    if (errorCode != ErrorCode.Success)
-      throw new TapoErrorResponseException(requestUri, requestMethod, errorCode);
-  }
-
-  public string RequestMethod { get; }
-  public ErrorCode ErrorCode { get; }
-
-  public TapoErrorResponseException(
-    Uri requestEndPoint,
-    string requestMethod,
-    ErrorCode errorCode
-  )
-    : base(
-      message: $"Request '{requestMethod}' failed with error code {(int)errorCode}. (Request URI: {requestEndPoint})",
-      endPoint: requestEndPoint,
-      innerException: null
-    )
-  {
-    RequestMethod = requestMethod;
-    ErrorCode = errorCode;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoHttpClientFactoryServiceCollectionExtensions.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoHttpClientFactoryServiceCollectionExtensions.cs
deleted file mode 100644
index b07944c..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoHttpClientFactoryServiceCollectionExtensions.cs
+++ /dev/null
@@ -1,31 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net.Http;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.DependencyInjection.Extensions;
-using Smdn.TPSmartHomeDevices.Tapo.Protocol;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public static class TapoHttpClientFactoryServiceCollectionExtensions {
-  public static IServiceCollection AddTapoHttpClient(
-    this IServiceCollection services,
-    Action<HttpClient>? configureClient = null
-  )
-  {
-    if (services is null)
-      throw new ArgumentNullException(nameof(services));
-
-    services.TryAdd(
-      ServiceDescriptor.Singleton(
-        typeof(IHttpClientFactory),
-        new TapoHttpClientFactory(
-          configureClient: configureClient
-        )
-      )
-    );
-
-    return services;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoProtocolException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoProtocolException.cs
deleted file mode 100644
index e9f9924..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.Tapo/TapoProtocolException.cs
+++ /dev/null
@@ -1,22 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-
-namespace Smdn.TPSmartHomeDevices.Tapo;
-
-public class TapoProtocolException : InvalidOperationException {
-  public Uri EndPoint { get; }
-
-  protected internal TapoProtocolException(
-    string message,
-    Uri endPoint,
-    Exception? innerException
-  )
-    : base(
-      message: message,
-      innerException: innerException
-    )
-  {
-    EndPoint = endPoint;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.csproj b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.csproj
index ab416f3..926c695 100644
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.csproj
+++ b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices.csproj
@@ -5,40 +5,40 @@ SPDX-License-Identifier: MIT
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFrameworks>netstandard2.1;net6.0</TargetFrameworks>
-    <TargetFrameworks Condition="$([MSBuild]::VersionGreaterThanOrEquals('$(NETCoreSdkVersion)', '7.0.0'))">net7.0;$(TargetFrameworks)</TargetFrameworks>
     <VersionPrefix>1.0.0</VersionPrefix>
-    <VersionSuffix>preview3</VersionSuffix>
-    <!-- <PackageValidationBaselineVersion>1.0.0</PackageValidationBaselineVersion> -->
-    <Nullable>enable</Nullable>
-    <DefineConstants
-      Condition="$([MSBuild]::VersionGreaterThanOrEquals('$(NETCoreSdkVersion)', '7.0.0'))"
-    >$(DefineConstants);LANG_VERSION_11_OR_GREATER</DefineConstants> <!-- required to use the UTF-8 string literals in C# 11 -->
-    <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <VersionSuffix>rc1</VersionSuffix>
+    <!-- exclude build output assembly from packing -->
+    <IncludeBuildOutput>false</IncludeBuildOutput>
+    <!-- ignore warning NU5128 -->
+    <NoWarn>NU5128;$(NoWarn)</NoWarn>
   </PropertyGroup>
 
   <PropertyGroup Label="assembly attributes">
     <Description>
-<![CDATA[.NET implementations for Kasa and Tapo, the TP-Link smart home devices.
+<![CDATA[A meta package that addes the dependency of Smdn.TPSmartHomeDevices.Kasa, Smdn.TPSmartHomeDevices.Tapo and Smdn.TPSmartHomeDevices.MacAddressEndPoint.
+This package is deprecated, use the individual packages instead.
 ]]>
     </Description>
     <CopyrightYear>2022</CopyrightYear>
   </PropertyGroup>
 
   <PropertyGroup Label="package properties">
-    <PackageTags>tplink-kasa,tplink-tapo,smarthome,homeautomation,smartdevice</PackageTags>
+    <PackageTags>metapackage,tplink-kasa,tplink-tapo,$(PackageCommonTags)</PackageTags>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Net.Http.Json" Version="6.0.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Http" Version="6.0.0" />
-    <PackageReference Include="Smdn.Fundamental.PrintableEncoding.Hexadecimal" Version="3.0.1" />
-    <PackageReference Include="Smdn.Net.AddressResolution" Version="1.0.0-preview5" />
+    <PackageReference Version="[1.0.0-*,1.0.0)" Include="Smdn.TPSmartHomeDevices.Kasa" />
+    <PackageReference Version="[1.0.0-*,1.0.0)" Include="Smdn.TPSmartHomeDevices.Tapo" />
+    <PackageReference Version="[1.0.0-*,1.0.0)" Include="Smdn.TPSmartHomeDevices.MacAddressEndPoint" />
   </ItemGroup>
 
-  <PropertyGroup>
-    <NoWarn>CS1573;CS1591;$(NoWarn)</NoWarn> <!-- XML docs-->
-    <NoWarn>CS8618;SA1027;SA1507;SA1005;$(NoWarn)</NoWarn>
-  </PropertyGroup>
-
+  <ItemGroup>
+    <!-- Third party notice -->
+    <None
+      Include="$(MSBuildThisFileDirectory)..\..\ThirdPartyNotices.md"
+      Pack="true"
+      PackagePath="ThirdPartyNotices.md"
+      CopyToOutputDirectory="None"
+    />
+  </ItemGroup>
 </Project>
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/DeviceEndPointFactoryServiceCollectionExtensions.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/DeviceEndPointFactoryServiceCollectionExtensions.cs
deleted file mode 100644
index 648e9b6..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/DeviceEndPointFactoryServiceCollectionExtensions.cs
+++ /dev/null
@@ -1,23 +0,0 @@
-using System;
-
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.DependencyInjection.Extensions;
-
-namespace Smdn.TPSmartHomeDevices;
-
-public static class DeviceEndPointFactoryServiceCollectionExtensions {
-  public static IServiceCollection AddDeviceEndPointFactory<TAddress>(
-    this IServiceCollection services,
-    IDeviceEndPointFactory<TAddress> endPointFactory
-  )
-  {
-    if (services is null)
-      throw new ArgumentNullException(nameof(services));
-    if (endPointFactory is null)
-      throw new ArgumentNullException(nameof(endPointFactory));
-
-    services.TryAdd(ServiceDescriptor.Singleton(typeof(IDeviceEndPointFactory<TAddress>), endPointFactory));
-
-    return services;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/DeviceEndPointProvider.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/DeviceEndPointProvider.cs
deleted file mode 100644
index 3270e8f..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/DeviceEndPointProvider.cs
+++ /dev/null
@@ -1,104 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.DependencyInjection;
-
-namespace Smdn.TPSmartHomeDevices;
-
-internal static class DeviceEndPointProvider {
-  private sealed class StaticDeviceEndPointProvider : IDeviceEndPointProvider {
-    private readonly ValueTask<EndPoint?> staticEndPointValueTaskResult;
-
-    public StaticDeviceEndPointProvider(EndPoint endPoint)
-    {
-      staticEndPointValueTaskResult = new ValueTask<EndPoint?>(endPoint);
-    }
-
-    public ValueTask<EndPoint?> GetEndPointAsync(CancellationToken cancellationToken)
-      => cancellationToken.IsCancellationRequested
-        ?
-#if SYSTEM_THREADING_TASKS_VALUETASK_FROMCANCELED
-          ValueTask.FromCanceled<EndPoint?>(cancellationToken)
-#else
-          ValueTaskShim.FromCanceled<EndPoint?>(cancellationToken)
-#endif
-        : staticEndPointValueTaskResult;
-
-    public override string ToString()
-      => staticEndPointValueTaskResult.Result!.ToString();
-  }
-
-  public static IDeviceEndPointProvider Create(string host, int port)
-    => Create(
-      new DnsEndPoint(
-        host: host ?? throw new ArgumentNullException(nameof(host)),
-        port: port
-      )
-    );
-
-  public static IDeviceEndPointProvider Create(IPAddress ipAddress, int port)
-    => Create(
-      new IPEndPoint(
-        address: ipAddress ?? throw new ArgumentNullException(nameof(ipAddress)),
-        port: port
-      )
-    );
-
-  public static IDeviceEndPointProvider Create(EndPoint endPoint)
-    => new StaticDeviceEndPointProvider(
-      endPoint ?? throw new ArgumentNullException(nameof(endPoint))
-    );
-
-  public static IDeviceEndPointProvider Create(
-    PhysicalAddress macAddress,
-    int port,
-    IServiceProvider serviceProvider
-  )
-    => Create(
-      macAddress: macAddress ?? throw new ArgumentNullException(nameof(macAddress)),
-      port: port,
-      endPointFactory: (serviceProvider ?? throw new ArgumentNullException(nameof(serviceProvider)))
-        .GetRequiredService<IDeviceEndPointFactory<PhysicalAddress>>()
-    );
-
-  public static IDeviceEndPointProvider Create(
-    PhysicalAddress macAddress,
-    int port,
-    IDeviceEndPointFactory<PhysicalAddress> endPointFactory
-  )
-    => (endPointFactory ?? throw new ArgumentNullException(nameof(endPointFactory)))
-      .Create(
-        address: macAddress ?? throw new ArgumentNullException(nameof(macAddress)),
-        port: port
-      );
-
-  internal static async ValueTask<EndPoint> ResolveOrThrowAsync(
-    this IDeviceEndPointProvider provider,
-    int defaultPort,
-    CancellationToken cancellationToken
-  )
-  {
-    var endPoint = await provider.GetEndPointAsync(cancellationToken);
-
-    if (endPoint is null && provider is IDynamicDeviceEndPointProvider dynamicEndPoint)
-      dynamicEndPoint.InvalidateEndPoint();
-
-    return endPoint switch {
-      IPEndPoint ipEndPoint => ipEndPoint.Port == 0
-        ? new IPEndPoint(ipEndPoint.Address, defaultPort)
-        : ipEndPoint,
-
-      DnsEndPoint dnsEndPoint => dnsEndPoint.Port == 0
-        ? new DnsEndPoint(dnsEndPoint.Host, defaultPort)
-        : dnsEndPoint,
-
-      EndPoint ep => ep,
-
-      null => throw new DeviceEndPointResolutionException(provider),
-    };
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/DeviceEndPointResolutionException.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/DeviceEndPointResolutionException.cs
deleted file mode 100644
index baba5a3..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/DeviceEndPointResolutionException.cs
+++ /dev/null
@@ -1,33 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-
-namespace Smdn.TPSmartHomeDevices;
-
-public class DeviceEndPointResolutionException : Exception {
-  public IDeviceEndPointProvider EndPointProvider { get; }
-
-  public DeviceEndPointResolutionException(
-    IDeviceEndPointProvider deviceEndPointProvider
-  )
-    : this(
-      deviceEndPointProvider: deviceEndPointProvider,
-      message: "Could not get or resolve the device endpoint.",
-      innerException: null
-    )
-  {
-  }
-
-  public DeviceEndPointResolutionException(
-    IDeviceEndPointProvider deviceEndPointProvider,
-    string message,
-    Exception? innerException
-  )
-    : base(
-      message: message,
-      innerException: innerException
-    )
-  {
-    EndPointProvider = deviceEndPointProvider;
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/IDeviceEndPointFactory.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/IDeviceEndPointFactory.cs
deleted file mode 100644
index 8a4daf9..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/IDeviceEndPointFactory.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices;
-
-public interface IDeviceEndPointFactory<TAddress> {
-  IDeviceEndPointProvider Create(TAddress address, int port = 0);
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/IDeviceEndPointProvider.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/IDeviceEndPointProvider.cs
deleted file mode 100644
index d2d77af..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/IDeviceEndPointProvider.cs
+++ /dev/null
@@ -1,11 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.Net;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace Smdn.TPSmartHomeDevices;
-
-public interface IDeviceEndPointProvider {
-  ValueTask<EndPoint?> GetEndPointAsync(CancellationToken cancellationToken = default);
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/IDynamicDeviceEndPointProvider.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/IDynamicDeviceEndPointProvider.cs
deleted file mode 100644
index 1f38438..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/IDynamicDeviceEndPointProvider.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices;
-
-public interface IDynamicDeviceEndPointProvider : IDeviceEndPointProvider {
-  void InvalidateEndPoint();
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/MacAddressDeviceEndPointFactory.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/MacAddressDeviceEndPointFactory.cs
deleted file mode 100644
index 27196b2..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/MacAddressDeviceEndPointFactory.cs
+++ /dev/null
@@ -1,126 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System;
-using System.Net;
-using System.Net.NetworkInformation;
-using System.Threading;
-using System.Threading.Tasks;
-using Smdn.Net;
-using Smdn.Net.AddressResolution;
-
-namespace Smdn.TPSmartHomeDevices;
-
-public class MacAddressDeviceEndPointFactory : IDeviceEndPointFactory<PhysicalAddress>, IDisposable {
-  protected class MacAddressDeviceEndPointProvider : IDynamicDeviceEndPointProvider {
-    private readonly IAddressResolver<PhysicalAddress, IPAddress> resolver;
-    private readonly PhysicalAddress address;
-    private readonly int port;
-
-    public MacAddressDeviceEndPointProvider(
-      IAddressResolver<PhysicalAddress, IPAddress> resolver,
-      PhysicalAddress address,
-      int port
-    )
-    {
-      this.resolver = resolver ?? throw new ArgumentNullException(nameof(resolver));
-      this.address = address ?? throw new ArgumentNullException(nameof(address));
-      this.port = port;
-    }
-
-    public async ValueTask<EndPoint?> GetEndPointAsync(CancellationToken cancellationToken)
-    {
-      var resolvedAddress = await resolver.ResolveAsync(
-        address: address,
-        cancellationToken: cancellationToken
-      ).ConfigureAwait(false);
-
-      return resolvedAddress is null
-        ? null
-        : new IPEndPoint(
-            address: resolvedAddress,
-            port: port
-          );
-    }
-
-    public void InvalidateEndPoint()
-      => resolver.Invalidate(address);
-
-    public override string ToString()
-      => address.ToMacAddressString();
-  }
-
-  /*
-   * instance members
-   */
-  private IAddressResolver<PhysicalAddress, IPAddress>? resolver; // if null, it indicates a 'disposed' state.
-
-  public MacAddressDeviceEndPointFactory(
-    MacAddressResolverOptions? options = null,
-    IServiceProvider? serviceProvider = null
-  )
-    : this(
-      resolver: (IAddressResolver<PhysicalAddress, IPAddress>)MacAddressResolver.Create(
-        options: options,
-        serviceProvider: serviceProvider
-      ),
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-  public MacAddressDeviceEndPointFactory(
-    MacAddressResolver resolver,
-    IServiceProvider? serviceProvider = null
-  )
-    : this(
-      resolver: (IAddressResolver<PhysicalAddress, IPAddress>)(resolver ?? throw new ArgumentNullException(nameof(resolver))),
-      serviceProvider: serviceProvider
-    )
-  {
-  }
-
-#pragma warning disable IDE0060
-  protected MacAddressDeviceEndPointFactory(
-    IAddressResolver<PhysicalAddress, IPAddress> resolver,
-    IServiceProvider? serviceProvider = null
-  )
-#pragma warning restore IDE0060
-  {
-    this.resolver = resolver ?? throw new ArgumentNullException(nameof(resolver));
-  }
-
-  public void Dispose()
-  {
-    Dispose(true);
-    GC.SuppressFinalize(this);
-  }
-
-  protected virtual void Dispose(bool disposing)
-  {
-    if (!disposing)
-      return;
-
-    (resolver as IDisposable)?.Dispose();
-    resolver = null; // mark as disposed
-  }
-
-  protected void ThrowIfDisposed()
-  {
-    if (resolver is null)
-      throw new ObjectDisposedException(GetType().FullName);
-  }
-
-  public virtual IDeviceEndPointProvider Create(
-    PhysicalAddress address,
-    int port = 0
-  )
-  {
-    ThrowIfDisposed();
-
-    return new MacAddressDeviceEndPointProvider(
-      resolver: resolver,
-      address: address ?? throw new ArgumentNullException(nameof(address)),
-      port: port
-    );
-  }
-}
diff --git a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/None.cs b/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/None.cs
deleted file mode 100644
index e7d21e2..0000000
--- a/src/Smdn.TPSmartHomeDevices/Smdn.TPSmartHomeDevices/None.cs
+++ /dev/null
@@ -1,5 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace Smdn.TPSmartHomeDevices;
-
-internal readonly struct None { }
diff --git a/src/Smdn.TPSmartHomeDevices/System.Runtime.CompilerServices/IsExternalInit.cs b/src/Smdn.TPSmartHomeDevices/System.Runtime.CompilerServices/IsExternalInit.cs
deleted file mode 100644
index 5971d2c..0000000
--- a/src/Smdn.TPSmartHomeDevices/System.Runtime.CompilerServices/IsExternalInit.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-FileCopyrightText: 2022 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-
-#if !SYSTEM_RUNTIME_COMPILERSERVICES_ISEXTERNALINIT
-namespace System.Runtime.CompilerServices;
-
-internal sealed class IsExternalInit { }
-#endif
diff --git a/src/Smdn.TPSmartHomeDevices/System.Security.Cryptography/AsymmetricAlgorithmShim.cs b/src/Smdn.TPSmartHomeDevices/System.Security.Cryptography/AsymmetricAlgorithmShim.cs
deleted file mode 100644
index 743537c..0000000
--- a/src/Smdn.TPSmartHomeDevices/System.Security.Cryptography/AsymmetricAlgorithmShim.cs
+++ /dev/null
@@ -1,50 +0,0 @@
-// SPDX-FileCopyrightText: 2023 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-using System.IO;
-using System.Text;
-
-namespace System.Security.Cryptography;
-
-internal static class AsymmetricAlgorithmShim {
-#if !SYSTEM_SECURITY_CRYPTOGRAPHY_ASYMMETRICALGORITHM_EXPORTSUBJECTPUBLICKEYINFOPEM
-  public static string ExportSubjectPublicKeyInfoPem(AsymmetricAlgorithm algorithm)
-    => ExportPem(
-      header: "-----BEGIN PUBLIC KEY-----",
-      footer: "-----END PUBLIC KEY-----",
-      key: (algorithm ?? throw new ArgumentNullException(nameof(algorithm))).ExportSubjectPublicKeyInfo()
-    );
-
-  private static string ExportPem(string header, string footer, byte[] key)
-  {
-    using var stream = new MemoryStream(capacity: header.Length + footer.Length + (key.Length * 2));
-    var writer = new StreamWriter(stream: stream, encoding: Encoding.ASCII, leaveOpen: true, bufferSize: 1024) {
-      NewLine = "\n",
-    };
-
-    writer.WriteLine(header);
-    writer.Flush();
-
-    using var base64Stream = new CryptoStream(
-      stream,
-      new ToBase64Transform(),
-      CryptoStreamMode.Write,
-      leaveOpen: true
-    );
-
-    // TODO: write newline per 48 bytes
-    base64Stream.Write(key, 0, key.Length);
-    base64Stream.Close();
-
-    writer.WriteLine();
-
-    writer.WriteLine(footer);
-    writer.Close();
-
-    stream.Position = 0L;
-
-    using var reader = new StreamReader(stream, Encoding.ASCII);
-
-    return reader.ReadToEnd();
-  }
-#endif
-}
diff --git a/src/Smdn.TPSmartHomeDevices/System.Threading.Tasks/ValueTaskShim.cs b/src/Smdn.TPSmartHomeDevices/System.Threading.Tasks/ValueTaskShim.cs
deleted file mode 100644
index 36d6b7a..0000000
--- a/src/Smdn.TPSmartHomeDevices/System.Threading.Tasks/ValueTaskShim.cs
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-FileCopyrightText: 2022 smdn <smdn@smdn.jp>
-// SPDX-License-Identifier: MIT
-namespace System.Threading.Tasks;
-
-internal static class ValueTaskShim {
-#if !SYSTEM_THREADING_TASKS_VALUETASK_FROMCANCELED
-  public static ValueTask FromCanceled(CancellationToken cancellationToken)
-    => new(Task.FromCanceled(cancellationToken));
-
-  public static ValueTask<TResult> FromCanceled<TResult>(CancellationToken cancellationToken)
-    => new(Task.FromCanceled<TResult>(cancellationToken));
-#endif
-
-#if !SYSTEM_THREADING_TASKS_VALUETASK_FROMRESULT
-  public static ValueTask<TResult> FromResult<TResult>(TResult result) => new(result);
-#endif
-}