using log4net;
using log4net.Core;
using log4net.Layout;
using log4net.Layout.Pattern;

namespace IwbZero.ToolCommon.LogHelpers
{
    /// <summary>
    /// Log4Net扩展（扩展一个Engine的LOG LEVEL，输出Engine运行日志)
    /// </summary>
    public static class Log4NetExtend
    {
        public static readonly log4net.Core.Level EngineLevel = new Level(Level.Finer.Value, "ENGINE");

        private static void AddEngineLevel(ILog log)
        {
            if (!log.Logger.Repository.LevelMap.AllLevels.Contains(EngineLevel))
            {
                log.Logger.Repository.LevelMap.Add(EngineLevel);
            }
        }

        public static void Engine(this ILog log, object message)
        {
            AddEngineLevel(log);
            log.Logger.Log(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType,
                EngineLevel, message, null);
        }

        public static void EngineFormat(this ILog log, string message, params object[] args)
        {
            AddEngineLevel(log);
            string formattedMessage = string.Format(message, args);
            log.Logger.Log(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType,
                EngineLevel, formattedMessage, null);
        }
    }

    /// <summary>
    /// 输出当前进程名转换器
    /// </summary>
    public class ProcessPatternConvert : PatternLayoutConverter
    {
        private static readonly string ProcessName = System.Diagnostics.Process.GetCurrentProcess().ProcessName;

        protected override void Convert(System.IO.TextWriter writer, log4net.Core.LoggingEvent loggingEvent)
        {
            writer.Write(ProcessName);//输出当前进程名
        }
    }

    public class CustomPatternLayout : PatternLayout
    {
        public CustomPatternLayout()
        {
            AddConverter("Engine", typeof(ProcessPatternConvert));
        }
    }
}