.cs

using UISchema.Attributes;
using System;
using System.Collections.Generic;
using System.Xml;

namespace UISchema.Builder;

public class UISchemaBuilder
{
    private readonly string _groupName;
    private readonly UISchemaBuilder _schemaBuilder;
    private readonly UISchemaSpecification _uiSchemaSpecification;

    public UISchemaBuilder() 
        : this(new UISchemaSpecification()) { }

    private UISchemaBuilder(UISchemaSpecification schemaSpecification)
    {
        _uiSchemaSpecification = schemaSpecification;
    }
        
    private UISchemaBuilder(
        string groupName,
        UISchemaBuilder schemaBuilder,
        UISchemaSpecification specification)
        : this(specification)
    {
        _groupName = groupName;
        _schemaBuilder = schemaBuilder;
    }

    public UISchemaBuilder StartGroup(string name)
    {
        _uiSchemaSpecification.ParsecMetadata ??= new();
        _uiSchemaSpecification.ParsecMetadata.Groups ??= new();
        _uiSchemaSpecification.ParsecMetadata.Groups.Add(new(name));

        return new UISchemaBuilder(name, this, _uiSchemaSpecification);
    }

    public UISchemaBuilder EndGroup() => _schemaBuilder;

    public UISchemaSpecification Build() => _uiSchemaSpecification;

    public UISchemaBuilder AddTextLine(
        NameLocalizedTitle nameTitle,
        uint? maxLength = null) =>
        AddText(nameTitle.Name, nameTitle.Title, maxLength, false);

    public UISchemaBuilder AddTextArea(
        NameLocalizedTitle nameTitle,
        uint? maxLength = null) =>
        AddText(nameTitle.Name, nameTitle.Title, maxLength, true);

    public UISchemaBuilder AddText(
        string fieldName,
        string fieldTitle,
        uint? maxLength,
        bool? multiline,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlStringAttribute
        {
            Parameters = new UISchemaStringFieldParameters
            {
                MaxLength = maxLength,
                Multiline = multiline
            }
        };

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    public UISchemaBuilder AddBoolean(
        NameLocalizedTitle nameTitle,
        bool? isReadonly = null,
        bool? isRequired = null) =>
        AddBoolean(nameTitle.Name, nameTitle.Title, isReadonly, isRequired);

    public UISchemaBuilder AddBoolean(
        string fieldName,
        string fieldTitle,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlBooleanAttribute();

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    public UISchemaBuilder AddCatalog(
        NameLocalizedTitle nameTitle,
        IEnumerable<(string, string)> values,
        bool? isReadonly = null,
        bool? isRequired = null) =>
        AddCatalog(nameTitle.Name, nameTitle.Title, values, isReadonly, isRequired);

    public UISchemaBuilder AddCatalog(
        string fieldName,
        string fieldTitle,
        IEnumerable<(string, string)> values,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlCatalogAttribute
        {
            Parameters = values,
        };

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    public UISchemaBuilder AddCatalogEditor(
        NameLocalizedTitle nameTitle,
        IEnumerable<string> values,
        bool? isReadonly = null,
        bool? isRequired = null) =>
        AddCatalogEditor(nameTitle.Name, nameTitle.Title, values, isReadonly, isRequired);

    public UISchemaBuilder AddCatalogEditor(
        string fieldName,
        string fieldTitle,
        IEnumerable<string> values = null,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlCatalogEditorAttribute
        {
            Values = values
        };

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    public UISchemaBuilder AddDate(
        NameLocalizedTitle nameTitle,
        bool? isReadonly = null,
        bool? isRequired = null) =>
        AddDate(nameTitle.Name, nameTitle.Title, isReadonly, isRequired);

    public UISchemaBuilder AddDate(
        string fieldName,
        string fieldTitle,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlDateAttribute();

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    public UISchemaBuilder AddDateTime(
        NameLocalizedTitle nameTitle,
        bool isLocalDateTime,
        bool? isReadonly = null,
        bool? isRequired = null) =>
        AddDateTime(nameTitle.Name, nameTitle.Title, isLocalDateTime, isReadonly, isRequired);

    public UISchemaBuilder AddDateTime(
        string fieldName,
        string fieldTitle,
        bool isLocalDateTime,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlDateTimeAttribute()
        {
            IsLocalDatetime = isLocalDateTime
        };

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    public UISchemaBuilder AddRangeDateTime(
        NameLocalizedTitle nameTitle,
        bool? isReadonly = null,
        bool? isRequired = null) =>
        AddRangeDateTime(nameTitle.Name, nameTitle.Title, isReadonly, isRequired);

    public UISchemaBuilder AddRangeDateTime(
        string fieldName,
        string fieldTitle,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlRangeDateTimeAttribute()
        {
            IntervalType = UIIntervalType.Variable
        };

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    public UISchemaBuilder AddEmail(
        NameLocalizedTitle nameTitle,
        bool? isReadonly = null,
        bool? isRequired = null) =>
        AddEmail(nameTitle.Name, nameTitle.Title, isReadonly, isRequired);

    public UISchemaBuilder AddEmail(
        string fieldName,
        string fieldTitle,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlEmailAttribute();

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    public UISchemaBuilder AddPhoneNumber(
        NameLocalizedTitle nameTitle,
        bool? isReadonly = null,
        bool? isRequired = null) =>
        AddPhoneNumber(nameTitle.Name, nameTitle.Title, isReadonly, isRequired);

    public UISchemaBuilder AddPhoneNumber(
        string fieldName,
        string fieldTitle,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlPhoneNumberAttribute();

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    public UISchemaBuilder AddNumber(
        NameLocalizedTitle nameTitle,
        decimal? min = null,
        decimal? max = null,
        bool? isReadonly = null,
        bool? isRequired = null) =>
        AddNumber(nameTitle.Name, nameTitle.Title, min, max, isReadonly, isRequired);

    public UISchemaBuilder AddNumber(
        string fieldName,
        string fieldTitle,
        decimal? min,
        decimal? max,
        bool? isReadonly = null,
        bool? isRequired = null)
    {
        var schemaControl = new UIControlNumberAttribute()
        {
            Parameters =
            {
                Min = min,
                Max = max
            }
        };

        CreateUISchemaItem(
            fieldName,
            fieldTitle,
            isRequired,
            isReadonly,
            schemaControl);

        return this;
    }

    private void CreateUISchemaItem(
        string fieldName,
        string fieldTitle,
        bool? isRequired,
        bool? isReadonly,
        UIControlAttribute schemaControl)
    {
        var schema = new UISchemaItem
        {
            Id = $"#/{fieldTitle}",
            Title = fieldTitle
        };

        if (isReadonly != null)
            schemaControl.IsReadonly = isReadonly;
        
        if (_groupName != null)
            schemaControl.Group = _groupName;

        if (isRequired.HasValue && isRequired.Value)
        {
            _uiSchemaSpecification.Required ??= new();
            _uiSchemaSpecification.Required.Add(fieldName);
        }

        schemaControl.FillSchema(schema, null, null);

        _uiSchemaSpecification.Properties[fieldName] = schema;
    }
}