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

namespace parkMonitor.LOG
{
    /// <summary>
    /// 日志管理
    /// </summary>
    public class LogManager
    {
        public static string logAddressStr = "LogAddress";
        public static string logAddress;
        DateTime time;                                        //文件创建时间
        private string logFileExtName = "log";     //日志文件扩展名
        private Encoding logFileEncoding = Encoding.UTF8;   //日志文件编码格式
        private string logFileName = string.Empty;  //日志文件名
        private string logPath = "";            //日志文件路径
        private bool writeLogTime = true;     //log文件是否写时间
        private bool writeStatus = false;        //是否写入标志位
        private static object obj = new object();
        /// <summary>
        /// 配置文件初始化
        /// </summary>
        public static void Init()
        {
            try
            {
                logAddress = ConfigurationManager.AppSettings[logAddressStr];
            }
            catch
            {
                Console.WriteLine("配置文件有误");
            }
        }
        /// <summary>
        /// 日志文件路径
        /// </summary>
        public string CreateLogPath()
        {
            if (logPath == null || logPath == string.Empty || time.ToString("yyyy-MM-dd") != System.DateTime.Now.ToString("yyyy-MM-dd"))
            {
                try
                {
                    time = System.DateTime.Now;
                    logPath = System.IO.Path.Combine(logAddress, time.ToString("yyyy-MM-dd"));
                }
                catch
                {
                    Console.WriteLine("路径合成失败");
                }
            }
            if (!logPath.EndsWith(@"\"))
            {
                logPath += @"\";
            }
            if (!Directory.Exists(logPath))
            {
                try
                {
                    Directory.CreateDirectory(logPath);
                }
                catch
                {
                    Console.WriteLine("创建文件路径失败");
                }
            }
            return logPath;
        }
        /// <summary>
        /// 写日志
        /// </summary>
        public void WriteLog(LogType logType, string logFile, string msg)
        {
            CreateLogPath();
            lock (obj)
            {
                try
                {
                    //创建log文件
                    logFileName = string.Format("{0}{1}.{2}", logPath, logType, this.logFileExtName);
                    using (StreamWriter sw = new StreamWriter(logFileName, true, logFileEncoding))
                    {
                        //是否写时间
                        if (logType == LogType.database)
                        {
                            writeLogTime = false;
                        }
                        else
                        {
                            writeLogTime = true;
                        }
                        ////sql类型
                        //if (logType == LogType.DATABASE)
                        //{
                        //    writeStatus = true;
                        //}
                        //else
                        //{
                        //    writeStatus = false;
                        //}
                        if (writeLogTime)
                        {
                            sw.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:") + logFile + ":" + msg);
                        }
                        else
                        {
                            sw.WriteLine(logFile + ":" + msg);

                        }
                    }
                }
                catch { }
            }
        }
        /// <summary>
        /// log类型不定
        /// </summary>
        /// <param name="logType"></param>
        /// <param name="logFile"></param>
        /// <param name="msg"></param>
        public void WriteLog(LogType logType, LogFile logFile, string msg)
        {
            this.WriteLog(logType, logFile.ToString(), msg);
        }
        /// <summary>
        /// log类型为null
        /// </summary>
        /// <param name="logType"></param>
        /// <param name="msg"></param>
        public void WriteLog(LogType logType, string msg)
        {
            this.WriteLog(logType, string.Empty, msg);
        }
        /// <summary>
        /// 读日志文件
        /// </summary>
        /// <param name="sqlStatus"></param>
        /// <param name="sqlMsg"></param>
        public void ReadLog(out string sqlStatus, out string sqlMsg, out int count)
        {
            sqlStatus = null;
            sqlMsg = null;
            count = 0;
            string date = System.DateTime.Now.ToString("yyyy-MM-dd");
            string filePath = logAddress + "\\\\" + date + "\\\\" + "DATABASE.log";
            try
            {
                List<string> logLines = null;
                if (File.Exists(filePath))
                {
                    logLines = new List<string>(File.ReadAllLines(filePath));
                }
                if (logLines != null)
                {
                    count = logLines.Count;
                    string logLine = logLines[0];
                    sqlStatus = logLine.Substring(0, 1);
                    sqlMsg = logLine.Substring(2, logLine.Length - 2);
                    logLines.RemoveAt(0);
                    File.WriteAllLines(filePath, logLines.ToArray());
                }
            }
            catch (Exception e) { Console.WriteLine(e.Message); }
        }



    }
    /// <summary>
    /// log类型
    /// </summary>
    public enum LogFile
    {
        LOG,
        RESET,
        ERROR,
        WARNING,
        INFO,
        ERROR_NUMBERPLATE
    }
    /// <summary>
    /// log文件类型
    /// </summary>
    public enum LogType
    {
        database,
        process
    }
}