using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Web;

namespace iWareWebservice.AppUtil
{
    public class LogHelper
    {
        private readonly string _logPath = ConfigurationManager.AppSettings["LogDir"].ToString();
        public static object Lock = new object();



        public static LogHelper Instance = null;

        ///<summary>
        ///获取单例的方法
        ///</summary>
        ///<returns>单例实体</returns>
        public static LogHelper GetInstance()
        {

            if (Instance == null)
            {
                lock (Lock)
                {
                    if (Instance == null)
                    {
                        Instance = new LogHelper();
                    }
                }
            }
            return Instance;
        }

        /// <summary>
        /// 添加日志
        /// </summary>
        /// <param name="folder">日志目录</param>
        /// <param name="methodName">方法名</param>
        /// <param name="format">内容格式</param>
        /// <param name="args">内容参数</param>
        public void WriteLog(string methodName, string format, params object[] args)
        {
            try
            {
                if (!Directory.Exists(_logPath))
                {
                    Directory.CreateDirectory(_logPath);
                }
                string message = string.Format("【{0}】【{1}】{2}\r\n", DateTime.Now.ToString("HH:mm:ss"), methodName,string.Format(format, args));
                File.AppendAllText(Path.Combine(_logPath, DateTime.Now.ToString("yyyyMMdd") + ".txt"), message);
            }
            catch (Exception) { }
        }
    }
}