CS2GSI/TestApp/Logger.cs

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C#
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2024-01-15 23:03:45 +01:00
using Microsoft.Extensions.Logging;
namespace CS2GSI.TestApp;
public class Logger : ILogger
{
private readonly LogLevel _enabledLoglevel;
private readonly ConsoleColor _defaultForegroundColor = Console.ForegroundColor;
private readonly ConsoleColor _defaultBackgroundColor = Console.BackgroundColor;
public Logger(LogLevel logLevel = LogLevel.Information)
{
_enabledLoglevel = logLevel;
}
public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception? exception, Func<TState, Exception?, string> formatter)
{
if (!IsEnabled(logLevel))
return;
Console.ForegroundColor = ForegroundColorForLogLevel(logLevel);
Console.BackgroundColor = BackgroundColorForLogLevel(logLevel);
Console.Write(logLevel.ToString()[..3].ToUpper());
Console.ResetColor();
// ReSharper disable once LocalizableElement
Console.Write($" [{DateTime.UtcNow:HH:mm:ss.fff}] ");
Console.WriteLine(formatter.Invoke(state, exception));
}
public bool IsEnabled(LogLevel logLevel)
{
return logLevel >= _enabledLoglevel;
}
public IDisposable? BeginScope<TState>(TState state) where TState : notnull
{
return null;
}
private ConsoleColor ForegroundColorForLogLevel(LogLevel logLevel)
{
return logLevel switch
{
LogLevel.Error or LogLevel.Critical => ConsoleColor.Black,
LogLevel.Debug => ConsoleColor.Black,
LogLevel.Information => ConsoleColor.White,
_ => _defaultForegroundColor
};
}
private ConsoleColor BackgroundColorForLogLevel(LogLevel logLevel)
{
return logLevel switch
{
LogLevel.Error or LogLevel.Critical => ConsoleColor.Red,
LogLevel.Debug => ConsoleColor.Yellow,
LogLevel.Information => ConsoleColor.Black,
_ => _defaultBackgroundColor
};
}
}