using System;
using System.Collections.Generic;
using System.IO;
using System.Text;

namespace WIDESEA_Common.Tools
{
    /// <summary>
    /// 本地日志记录
    /// </summary>
    public class WriteLog
    {
        /// <summary>
        /// 文件大小
        /// </summary>
        private int fileSize;
        /// <summary>
        /// 日志文件名称
        /// </summary>
        private string logFileName;
        /// <summary>
        /// 日志内容
        /// </summary>
        public static WriteLog log;
        /// <summary>
        /// 设备名称
        /// </summary>
        static string EquipName;
        /// <summary>
        /// 获取日志
        /// </summary>
        /// <param name="equipName">设备名称</param>
        /// <returns></returns>
        public static WriteLog GetLog(string equipName)
        {
            EquipName = equipName;
            //if (log == null)
            log = new WriteLog(equipName);
            log.FileLogPath = AppContext.BaseDirectory + "\\log\\" + DateTime.Now.ToString("yyyyMMdd") /*+ "\\" + EquipName + "_" + DateTime.Now.ToString("yyyyMMdd")*/ + "\\";
            return log;
        }

        /// <summary>
        /// 信息
        /// </summary>
        /// <param name="equipName">设备名称</param>
        /// <returns></returns>
        public static WriteLog Info(string equipName)
        {
            EquipName = equipName;
            //if (log == null)
            log = new WriteLog("Info" + equipName);
            log.FileLogPath = AppContext.BaseDirectory + "\\log\\Info\\" + DateTime.Now.ToString("yyyyMMdd") /*+ "\\" + EquipName + "_" + DateTime.Now.ToString("yyyyMMdd")*/ + "\\";
            return log;
        }

        /// <summary>
        /// 错误
        /// </summary>
        /// <param name="equipName">设备名称</param>
        /// <returns></returns>
        public static WriteLog Error(string equipName)
        {
            EquipName = equipName;
            //if (log == null)
            log = new WriteLog("Error" + equipName);
            log.FileLogPath = AppContext.BaseDirectory + "\\log\\Error\\" + DateTime.Now.ToString("yyyyMMdd") /*+ "\\" + EquipName + "_" + DateTime.Now.ToString("yyyyMMdd")*/ + "\\";
            return log;
        }

        private WriteLog(string equipName)
        {
            //初始化大于399M日志文件将自动删除;

            this.fileSize = 2048 * 1024 * 200;//50M   2048 * 1024 * 200= 419430000字节(b)=399.9996185兆字节(mb)

            //默认路径

            //this.FileLogPath = AppContext.BaseDirectory + "\\log\\" + EquipName + "\\";
            EquipName = equipName;
            if (!string.IsNullOrEmpty(equipName))
                this.logFileName = equipName + "_log" + DateTime.Now.ToString("yyyyMMdd") + ".log";
            else
                this.logFileName = "log" + DateTime.Now.ToString("yyyyMMdd") + ".log";
            //this.logFileName = EquipName + "_log" + DateTime.Now.ToString("yyyyMMdd") + ".log";
        }

        public int FileSize
        {
            set
            {
                fileSize = value;
            }
            get
            {
                return fileSize;
            }
        }

        public string FileLogPath { set; get; } //= AppContext.BaseDirectory + "\\log\\" + EquipName + "\\";

        public string LogFileName
        {
            set
            {
                this.logFileName = value;
            }
            get
            {
                return this.logFileName;
            }
        }
        /// <summary>
        /// 方法锁
        /// </summary>
        private static readonly object flag = new object();
        /// <summary>
        /// 
        /// </summary>
        /// <param name="Message"></param>
        /// <param name="equipName"></param>
        public void Write(string Message, string equipName)
        {
            lock (flag)
            {
                if (!string.IsNullOrEmpty(equipName))
                    this.logFileName = equipName + "_log" + DateTime.Now.ToString("yyyyMMdd") + ".log";
                else
                    this.logFileName = "log" + DateTime.Now.ToString("yyyyMMdd") + ".log";
                this.Write(this.logFileName, Message, equipName);
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="LogFileName"></param>
        /// <param name="Message"></param>
        /// <param name="equipName"></param>
        public void Write(string LogFileName, string Message, string equipName)
        {

            //DirectoryInfo path=new DirectoryInfo(LogFileName);
            //如果日志文件目录不存在,则创建
            if (!Directory.Exists(this.FileLogPath))
            {
                Directory.CreateDirectory(this.FileLogPath);
            }

            FileInfo finfo = new FileInfo(this.FileLogPath + LogFileName);
            if (finfo.Exists && finfo.Length > fileSize)
            {
                finfo.Delete();
            }
            try
            {
                using (FileStream fs = new FileStream(this.FileLogPath + LogFileName, FileMode.Append))
                {
                    using (StreamWriter strwriter = new StreamWriter(fs))
                    {
                        strwriter.WriteLine(Message);
                        strwriter.Flush();
                        strwriter.Close();
                    }
                }
            }
            catch (Exception ee)
            {
                Console.Out.WriteLine("日志文件写入失败信息:" + ee.ToString());
            }
        }
    }
}