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

namespace JinYuan.Helper
{
    /// <summary>
    /// 日志操作类
    /// </summary>
    public class LogHelper
    {
        private static object singleLock = new object();

        /// <summary>
        /// log日志文件路径
        /// </summary>
        public static string logFilePath = string.Empty;


        public static LogHelper _instance = null;
        public static LogHelper Instance
        {

            get
            {
                if (_instance == null)
                {
                    lock (singleLock)
                    {
                        if (_instance == null)
                        {
                            _instance = new LogHelper();
                        }
                    }
                }
                return _instance;
            }

        }


   

        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="configPath"></param>
        public void InitLog(string configPath)
        {
            logFilePath = configPath;
            if (!Directory.Exists(logFilePath))
            {
                Directory.CreateDirectory(logFilePath);
            }
            //if (!File.Exists(logFilePath))
            //{
            //    File.Create(logFilePath).Close();
            //}
        }


        /// <summary>
        /// 写日志文件数据库日志文件
        /// </summary>
        /// <param name="message">消息</param>  
        public  void WriteError(string message)
        {

            AddLog(message, "Error");
        }

        public void WriteEX(Exception ex)
        {
            AddLog(ex.Message + "\r\n" + ex.InnerException + "\r\n" + ex.StackTrace + "\r\n" + ex.Source, "SysErrorLog");
        }

        public void WriteEX(string ErrorName,Exception ex)
        {
            AddLog(ErrorName+ "\r\n"+ex.Message + "\r\n" + ex.InnerException + "\r\n" + ex.StackTrace + "\r\n" + ex.Source, "SysErrorLog");
        }
        /// <summary>
        /// 写日志文件数据库日志文件
        /// </summary>
        /// <param name="ex">消息</param> 
        /// <param name="direName">日志存储目录名称</param>
        public  void WriteError(Exception ex, string direName)
        {
            AddLog(ex.Message + "\r\n" + ex.InnerException + "\r\n" + ex.StackTrace + "\r\n" + ex.Source, direName);
        }

        /// <summary>
        /// /
        /// </summary>
        /// <param name="message"></param>
        /// <param name="direName"></param>
        public void WriteError(string message, string direName)
        {
            AddLog(message, direName);
        }
        /// <summary>
        /// 写日志文件数据库日志文件
        /// </summary>
        /// <param name="message">消息</param>  
        public  void WriteLog(string message)
        {

            AddLog(message, "Info");
        }
        /// <summary>
        /// 写日志文件数据库日志文件
        /// </summary>
        /// <param name="message">消息</param> 
        /// <param name="direName">日志存储目录名称</param>
        public  void WriteLog(string message, string direName)
        {

            AddLog(message, direName);
        }

        /// <summary>
        /// 写日志文件数据库日志文件
        /// </summary>
        /// <param name="message">消息</param>
        /// <param name="direName">日志存储目录名称</param>
        private  void AddLog(string message, string direName)
        {
            string fileLog = logFilePath;
            if (fileLog == "")
            {
                return;
            }
            try
            {
                var applicationName = direName;
                //从宿主配置文件中获取日志文件全路径
                //所有的接口日志文件放在一个目录下面，跟web站点的目录分开
                //日志文件一天放一个，按日期分开

                if (string.IsNullOrEmpty(applicationName))
                {
                    applicationName = "Log";
                }
                string logFullPath = fileLog + applicationName;

                if (!Directory.Exists(logFullPath))
                {
                    Directory.CreateDirectory(logFullPath);
                }
                //只保留30天的日志
                var deletePath = $@"{logFullPath}\{DateTime.Now.AddDays(-30):yyyyMMddHH}.txt";

                if (File.Exists(deletePath))
                {
                    File.Delete(deletePath);
                }

                logFullPath = $@"{logFullPath}\{DateTime.Now:yyyyMMddHH}.txt";
                if (!File.Exists(logFullPath))
                {
                    using (var fs = new FileStream(logFullPath, FileMode.Create, FileAccess.Write))
                    {
                        StreamWriter sw = new StreamWriter(fs);
                        sw.Close();
                        fs.Close();
                    }
                }
                
                    using (StreamWriter writer = new StreamWriter(logFullPath, true))
                    {
                        writer.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
                        writer.WriteLine(message);
                        writer.WriteLine(Environment.NewLine);

                    }
               
            }
            catch
            {
                // ignored
            }
        }

    }
}