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

namespace RailLocalMeter
{
    public class Log
    {
        /// <summary>
        /// 禁止通过new创建实例
        /// </summary>
        private Log() { }

        private static Log log;

        // 定义一个标识确保线程同步
        private static readonly object locker = new object();

        public static Log GetInstance()
        {
            if (log == null)
            {
                lock (locker)
                {
                    if (log == null)
                    {
                        log = new Log();
                    }
                }
            }
            return log;
        }

        /// <summary>
        /// 写入日志
        /// </summary>
        /// <param name="iType">0智能终端  1数据采集 2网络状态 3计量实绩 4计量监控 5远程计量 6静态衡 7动态衡 8成品秤</param>
        /// <param name="str"></param>
        public void WriteLog(LogType iType, string str)
        {
            try
            {
                string strLogName = "";
                switch (iType)
                {
                    case LogType.PlcLog:
                        strLogName = "数据采集日志_";
                        break;
                    case LogType.MoxaLog:
                        strLogName = "重量采集日志_";
                        break;
                    case LogType.VoiceLog:
                        strLogName = "视频日志_";
                        break;
                    case LogType.RfidLoc:
                        strLogName = "rfid日志_";
                        break;
                    case LogType.LedLog:
                        strLogName = "Led日志_";
                        break;
                    case LogType.serverLog:
                        strLogName = "请求服务端日志_";
                        break;
                    case LogType.WriteDbLog:
                        strLogName = "本地计量日志_";
                        break;
                    default:
                        strLogName = "计量终端日志_";
                        break;
                }

                string m_szRunPath;
                m_szRunPath = System.Environment.CurrentDirectory;
                if (System.IO.Directory.Exists(m_szRunPath + "\\log") == false)
                {
                    System.IO.Directory.CreateDirectory(m_szRunPath + "\\log");
                }
                string strDate = System.DateTime.Now.ToString("yyyyMMdd");
                string strPathFile = m_szRunPath + "\\log\\" + strDate;
                if (!Directory.Exists(strPathFile))//如果不存在就创建file文件夹
                {
                    Directory.CreateDirectory(strPathFile);
                }
                System.IO.TextWriter tw = new System.IO.StreamWriter(strPathFile + "\\" + strLogName + strDate + ".log", true);

                tw.WriteLine(System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
                tw.WriteLine(str);
                tw.WriteLine("\r\n");

                tw.Close();
            }
            catch (Exception ex)
            {

            }
        }
    }

    public enum LogType 
    { 
        PlcLog,//Plc数据交互
        MoxaLog,//Moxa重量采集
        VoiceLog,//摄像头采集
        SystemLog,//程序本身抛出
        RfidLoc,//rfid异常
        serverLog,//服务端异常
        WriteDbLog,//写入数据异常
        LedLog,
    }
}