SimpleConsoleLogger.cs

// Licensed under the Apache License, Version 2.0 (the "License").
// See the LICENSE file in the project root for more information.

using System;
using System.Reactive.Disposables;
using Microsoft.Extensions.Logging;

namespace HIDDevices.Sample;

public class SimpleConsoleLogger<T> : ILogger<T>
{
    public readonly string Name;

    public SimpleConsoleLogger(LogLevel logLevel, string? name = null)
    {
        Name = name ?? typeof(T).Name;
        LogLevel = logLevel;
    }

    public LogLevel LogLevel { get; set; }

    /// <inheritdoc />
    public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception? exception,
        Func<TState, Exception?, string> formatter)
    {
        if (!IsEnabled(logLevel))
        {
            return;
        }

        var message = formatter(state, exception);

        if (!string.IsNullOrEmpty(message))
        {
            Console.WriteLine(message);
        }
    }

    /// <inheritdoc />
    public bool IsEnabled(LogLevel logLevel) => LogLevel <= logLevel;

    /// <inheritdoc />
    public IDisposable BeginScope<TState>(TState state) where TState : notnull => Disposable.Empty;
}