using log4net.Core;
using log4net.Layout.Pattern;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LogServer
{
    /// <summary>
    /// 一般操作
    /// </summary>
    public class ExceptionLogMessage
    {
        /// <summary>
        /// 操作人
        /// </summary>
        public string Operationer { get; set; }
        /// <summary>
        /// 客户端IP
        /// </summary>
        public string IP { get; set; }
        /// <summary>
        /// 浏览器请求头
        /// </summary>
        public string Header { get; set; }
        /// <summary>
        /// 请求地址
        /// </summary>
        public string Url { get; set; }
        /// <summary>
        /// 功能点名称
        /// </summary>
        public string ActionName { get; set; }

        public Exception exception { get; set; }

        public override string ToString()
        {
            return string.Format("功能点：{0} \n操作者：{1} \nIP：{2} \n头部信息：{3} \n来自页面：{4} 错误信息：{5}", ActionName, Operationer, IP, Header, Url, exception.ToString());
        }
    }
    public class ExceptionLayout : log4net.Layout.PatternLayout
    {
        public ExceptionLayout()
        {
            this.AddConverter("exceptionMessage", typeof(ExceptionPatternConverter));
            this.AddConverter("ActionName", typeof(ActionNameExceptionPatternConverter));
            this.AddConverter("Operationer", typeof(OperationerExceptionPatternConverter));
            this.AddConverter("IP", typeof(IPExceptionPatternConverter));
            this.AddConverter("Header", typeof(HeaderExceptionPatternConverter));
            this.AddConverter("Url", typeof(UrlExceptionPatternConverter));
        }
    }


    internal sealed class ActionNameExceptionPatternConverter : PatternLayoutConverter
    {
        override protected void Convert(TextWriter writer, LoggingEvent loggingEvent)
        {
            ExceptionLogMessage logMessage = loggingEvent.MessageObject as ExceptionLogMessage;

            if (logMessage != null)
                writer.Write(logMessage.ActionName);
        }
    }

    internal sealed class OperationerExceptionPatternConverter : PatternLayoutConverter
    {
        override protected void Convert(TextWriter writer, LoggingEvent loggingEvent)
        {
            ExceptionLogMessage logMessage = loggingEvent.MessageObject as ExceptionLogMessage;

            if (logMessage != null)
                writer.Write(logMessage.Operationer);
        }
    }

    internal sealed class IPExceptionPatternConverter : PatternLayoutConverter
    {
        override protected void Convert(TextWriter writer, LoggingEvent loggingEvent)
        {
            ExceptionLogMessage logMessage = loggingEvent.MessageObject as ExceptionLogMessage;

            if (logMessage != null)
                writer.Write(logMessage.IP);
        }
    }

    internal sealed class HeaderExceptionPatternConverter : PatternLayoutConverter
    {
        override protected void Convert(TextWriter writer, LoggingEvent loggingEvent)
        {
            ExceptionLogMessage logMessage = loggingEvent.MessageObject as ExceptionLogMessage;

            if (logMessage != null)
                writer.Write(logMessage.Header);
        }
    }

    internal sealed class UrlExceptionPatternConverter : PatternLayoutConverter
    {
        override protected void Convert(TextWriter writer, LoggingEvent loggingEvent)
        {
            ExceptionLogMessage logMessage = loggingEvent.MessageObject as ExceptionLogMessage;

            if (logMessage != null)
                writer.Write(logMessage.Url);
        }
    }

    internal sealed class ExceptionPatternConverter : PatternLayoutConverter
    {
        override protected void Convert(TextWriter writer, LoggingEvent loggingEvent)
        {
            ExceptionLogMessage logMessage = loggingEvent.MessageObject as ExceptionLogMessage;

            if (logMessage != null)
                writer.Write(logMessage.exception.ToString());
        }
    }
}