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

namespace YTSoft.Common
{
    /// <summary>
    /// 记录系统错误日志类
    /// </summary>
    public class SysLog
    {
        #region 错误记录

        private static Exception EX = null;//错误消息
        private static string Leve = null;//错误级别
        private static string Position = null;//错误位置
        private static string SavePath = null; //保存位置




        /// <summary>
        /// 向文件中写错误日志,只写错误信息
        /// </summary>
        /// <param name="ex">错误信息</param>
        public static void WriteLog(Exception ex)
        {
            EX = ex;
            WriteDisk();//文件写入硬盘
        }

        /// <summary>
        /// 向文件中写错误日志,只写错误信息
        /// </summary>
        /// <param name="ex">错误信息</param>
        public static void WriteLog(Exception ex, string path)
        {
            SavePath = path;
            EX = ex;
            WriteDisk();//文件写入硬盘
        }

        /// <summary>
        /// 向文件中写错误日志,记录错误信息,发生错误位置
        /// </summary>
        /// <param name="ex">错误信息</param>
        /// <param name="position">发生错误位置</param>
        public static void WriteLog(Exception ex, string position, string path)
        {
            SavePath = path;
            EX = ex;
            Position = position;
            WriteDisk();//文件写入硬盘
        }

        /// <summary>
        /// 向文件中写错误日志,记录错误信息，发生错误位置，错误级别
        /// </summary>
        /// <param name="ex">错误信息</param>
        /// <param name="position">发生错误位置</param>
        /// <param name="type">错误级别</param>
        public static void WriteLog(Exception ex, string position, string leve, string path)
        {
            SavePath = path;
            EX = ex;
            Leve = leve;
            Position = position;
            WriteDisk();//文件写入硬盘
        }

        /// <summary>
        /// 文件写入硬盘
        /// </summary>
        /// <param name="str"></param>
        private static void WriteDisk()
        {
            FileStream fs = null;
            try
            {
                string str = "时间:" + System.DateTime.Now.ToString() + "\t";

                if (EX != null)
                {
                    str += "错误消息:" + EX.Message + "\t";

                    if (EX.HelpLink != null)
                    {
                        str += "与此关联的文件:" + EX.HelpLink + "\t";
                    }

                    str += "错误消息字符串表示:" + EX.StackTrace + "\t";
                }

                if (Position != null)
                {
                    str += "错误位置:" + Position + "\t";
                }

                if (Leve != null)
                {
                    str += "错误级别:" + Leve + "\t";
                }

                str += "\r\n\r\n\r\n";
                string path = SavePath + "/Logs/ErrorLogs/" + DateTime.Now.ToString("yyyyMM") + "/" + DateTime.Now.ToString("yyyyMMdd") + "Log.txt";

                if (!File.Exists(path))
                {
                    Directory.CreateDirectory(SavePath + "/Logs/ErrorLogs/" + DateTime.Now.ToString("yyyyMM") + "/");
                    File.Create(path).Close();
                }

                //字符串写入硬盘
                byte[] bytData = System.Text.Encoding.Default.GetBytes(str);
                fs = new FileStream(path, FileMode.Append, FileAccess.Write, FileShare.ReadWrite, 2048);
                fs.Write(bytData, 0, bytData.Length);
            }
            finally
            {
                if (fs != null)
                {
                    fs.Close();
                }

                EX = null;
                Position = null;
                Leve = null;
            }
        }

        /// <summary>
        /// 文件写入硬盘 操作日志
        /// </summary>
        /// <param name="str"></param>
        public static void WriteOptDisk(string info, string paths)
        {
            SavePath = paths;
            FileStream fs = null;
            try
            {
                string str = "时间:" + System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss ms") + "\t";

                str += "操作信息:" + info + "\t";
                str += "\r\n\r\n\r\n";
                string path = SavePath + "/Logs/OptLogs/" + DateTime.Now.ToString("yyyyMM") + "/" + DateTime.Now.ToString("yyyyMMdd") + "-" + DateTime.Now.Hour + "-" + DateTime.Now.Minute + "Log.txt";

                if (!File.Exists(path))
                {
                    Directory.CreateDirectory(SavePath + "/Logs/OptLogs/" + DateTime.Now.ToString("yyyyMM")+ "/");
                    File.Create(path).Close();
                }

                //字符串写入硬盘
                byte[] bytData = System.Text.Encoding.Default.GetBytes(str);
                fs = new FileStream(path, FileMode.Append, FileAccess.Write, FileShare.ReadWrite, 2048);
                fs.Write(bytData, 0, bytData.Length);
            }
            finally
            {
                if (fs != null)
                {
                    fs.Close();
                }
            }
        }

        #endregion
    }




}