Avalonia SerilogSink

SerilogSink.cs

using Avalonia.Logging;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Serilog;

public class SerilogSink : ILogSink
{
	private readonly LogEventLevel _level;
	private readonly IList<string>? _areas;

	public SerilogSink(
		LogEventLevel minimumLevel,
		IList<string>? areas = null)
	{
		_level = minimumLevel;
		_areas = areas?.Count > 0 ? areas : null;
	}

	public bool IsEnabled(LogEventLevel level, string area)
	{
		return level >= _level && (_areas?.Contains(area) ?? true);
	}

	public void Log(LogEventLevel level, string area, object? source, string messageTemplate)
	{
		if (IsEnabled(level, area))
		{
			Serilog.Log.Write(LogLevelToSerilogLevel(level), $"[{area} {source}] {messageTemplate}");
		}
	}

	public void Log(LogEventLevel level, string area, object? source, string messageTemplate, params object?[] propertyValues)
	{
		if (IsEnabled(level, area))
		{
			Serilog.Log.Write(LogLevelToSerilogLevel(level), $"[{area} {source}] {messageTemplate}", propertyValues);
		}
	}

	private static Serilog.Events.LogEventLevel LogLevelToSerilogLevel(LogEventLevel level)
	{
		switch (level)
		{
			case LogEventLevel.Verbose:
				return Serilog.Events.LogEventLevel.Verbose;
			case LogEventLevel.Debug:
				return Serilog.Events.LogEventLevel.Debug;
			case LogEventLevel.Information:
				return Serilog.Events.LogEventLevel.Information;
			case LogEventLevel.Warning:
				return Serilog.Events.LogEventLevel.Warning;
			case LogEventLevel.Error:
				return Serilog.Events.LogEventLevel.Error;
			case LogEventLevel.Fatal:
				return Serilog.Events.LogEventLevel.Fatal;
			default:
				return Serilog.Events.LogEventLevel.Verbose;
		}
	}
}

SerilogSinkExtensions.cs

using Avalonia.Controls;
using Avalonia.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

public static class SerilogSinkExtensions
{
	public static T LogToSerilog<T>(
		this T builder,
		LogEventLevel level = LogEventLevel.Warning,
		params string[] areas)
			where T : AppBuilderBase<T>, new()
	{
		Logger.Sink = new SerilogSink(level, areas);
		return builder;
	}
}