using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PCRobot
{
    /// <summary>
    /// 日志参数类
    /// </summary>
    internal sealed class LogParameter
    {
        /// <summary>
        /// 日志等级
        /// </summary>
        public int LogGrade { get; set; }

        /// <summary>
                /// 日志类型
                /// </summary>
        public string LogType { get; set; }

        /// <summary>
                /// 日志记录类名和方法名（className/methodName）
                /// </summary>
        public string LogName { get; set; }

        /// <summary>
                /// 日志记录文本内容
                /// </summary>
        public string LogContent { get; set; }
    }

    /// <summary>
    /// 自定义之日助手
    /// </summary>
    internal sealed class LogHelper
    {
        #region 单利模式
        //创建私有静态字段，接收类的实例化对象  
        private static readonly LogHelper _LogHelper = null;
        //构造函数私有化  
        internal LogHelper() { }
        //静态构造函数，创建单利对象资源  
        static LogHelper()
        {
            _LogHelper = new LogHelper();
        }

        //获取单利对象资源  
        public static LogHelper GetSingleObj()
        {
            return _LogHelper;
        }
        #endregion

        /// <summary>
        /// 日志等级
        /// </summary>
        private enum LogType { ERROR = 1, INFO = 2, DEBUG = 3 };

        /// <summary>
        /// 指定日志文件夹（项目跟路劲文件夹）
        /// </summary>
        public string Path { get; set; }

        /// <summary>
        /// 向日志文件写入调试信息
        /// </summary>
        /// <param name="logName">类名/方法名</param>
        /// <param name="logContent">日志记录内容</param>
        public void Debug(string logName, string logContent)
        {
            try
            {
                WriteLog(new LogParameter() { LogGrade = (int)LogType.DEBUG, LogType = nameof(LogType.DEBUG), LogName = logName, LogContent = logContent });
            }
            catch (Exception)
            { }
        }

        /// <summary>
        /// 向日志文件写入运行时信息
        /// </summary>
        /// <param name="logName">类名/方法名</param>
        /// <param name="logContent">日志记录内容</param>
        public void Info(string logName, string logContent)
        {
            WriteLog(new LogParameter() { LogGrade = (int)LogType.INFO, LogType = nameof(LogType.INFO), LogName = logName, LogContent = logContent });
        }

        /// <summary>
        /// 向日志文件写入出错信息
        /// </summary>
        /// <param name="logName">类名/方法名</param>
        /// <param name="logContent">日志记录内容</param>
        public void Error(string logName, string logContent)
        {
            WriteLog(new LogParameter() { LogGrade = (int)LogType.ERROR, LogType = nameof(LogType.ERROR), LogName = logName, LogContent = logContent });
        }

        /// <summary>
        /// 实际的写日志操作
        /// </summary>
        /// <param name="logParameter">日志参数model</param>
        private void WriteLog(LogParameter _logParameter)
        {
            var logParameter = _logParameter;
            //var m = new Action(delegate ()
            //Task.Factory.StartNew(delegate ()
            //{
            try
            {
                string filename = string.Empty;
                filename = CsharpHttpHelper.HttpExtend.MapFile($"{DateTime.Now.ToString("yyyy-MM-dd HH")}.log", $"Cache\\{_logParameter.LogType}");

                #region 原始写法
                //创建或打开日志文件，向日志文件末尾追加记录
                //StreamWriter mySw = File.AppendText(filename);

                //向日志文件写入内容
                //string writeContent = time + "|" + typeGrade + ":" + type + "|" + className + ":" + content;
                //mySw.WriteLine(writeContent);

                //关闭日志文件
                //mySw.Close(); 
                #endregion

                //（优化写法）创建或打开日志文件，向日志文件末尾追加记录,关闭日志文件
                using (StreamWriter mySw = File.AppendText(filename))
                {
                    string writeContent = $"{DateTime.Now.ToString("HH:mm:ss")}---{logParameter.LogGrade}|{logParameter.LogType}|{logParameter.LogName}---{logParameter.LogContent}";
                    mySw.WriteLine(writeContent);//向日志文件写入内容
                    mySw.Close(); //关闭日志文件
                }
            }
            catch (Exception)
            {
            }
            //});
            //m.BeginInvoke(null, null);
        }
    }

}