Logger.cs

using System;
using Microsoft.Extensions.Logging;

namespace krrTools
{
    public static class Logger
    {
        private static ILogger? logger;
        private static bool consoleOutputEnabled = true;

        public static void Initialize(ILogger? logger)
        {
            Logger.logger = logger;
        }

        /// <summary>
        /// 启用或禁用控制台输出。在单元测试中可以禁用以减少日志噪音。
        /// </summary>
        public static void SetConsoleOutputEnabled(bool enabled)
        {
            consoleOutputEnabled = enabled;
        }

        /// <code>Logger.WriteLine(LogLevel.Information, "xxxx{0}, {1}", a, b);</code>
        /// <param name="level">日志等级</param>
        /// <param name="message">信息</param>
        /// <param name="args">lamda变量字段</param>
        public static void WriteLine(LogLevel level, string message, params object[] args)
        {
            logger?.Log(level, message, args);

            if (!consoleOutputEnabled)
                return;
#if !DEBUG
            if (level == LogLevel.Debug)
                return; // Debug 级别日志在非调试模式下不输出到控制台
#endif

            ConsoleColor color = level switch
                                 {
                                     LogLevel.Debug       => ConsoleColor.Magenta,
                                     LogLevel.Information => ConsoleColor.Green,
                                     LogLevel.Warning     => ConsoleColor.Yellow,
                                     LogLevel.Error       => ConsoleColor.Red,
                                     LogLevel.Critical    => ConsoleColor.Gray,
                                     _                    => ConsoleColor.Gray
                                 };

            string formatted = args.Length > 0 ? string.Format(message, args) : message;

            string levelString = level switch
                                 {
                                     LogLevel.Debug       => "Debug",
                                     LogLevel.Information => "Info",
                                     LogLevel.Warning     => "Warning",
                                     LogLevel.Error       => "Error",
                                     LogLevel.Critical    => "Critical",
                                     _                    => "unknow"
                                 };

            Console.ForegroundColor = color;
            Console.WriteLine($"{levelString}: {formatted}");
            Console.ResetColor();
        }
    }
}