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

namespace IOT.Show.Common
{
    /// <summary>
    /// 日志类
    /// </summary>
    public class LogHelper
    {
        //GetLogger表示log4net配置文件中logger标签中name属性，此处要一致 不然无log输出
        public static readonly log4net.ILog loginfo = log4net.LogManager.GetLogger("loginfo");
        public static readonly log4net.ILog logerror = log4net.LogManager.GetLogger("logerror");

        /// <summary>
        /// 记录Info日志
        /// </summary>
        /// <param name="msg"></param>
        /// <param name="ex"></param>
        public static void Info(string msg)
        {
            if (loginfo.IsInfoEnabled)
            {
                loginfo.Info(msg);
            }
        }
        /// <summary>
        /// 记录Error日志
        /// </summary>
        /// <param name="errorMsg"></param>
        /// <param name="ex"></param>
        public static void Error(string info, Exception ex = null)
        {
            if (!string.IsNullOrEmpty(info) && ex == null)
            {
                logerror.ErrorFormat("【附加信息】 : {0}<br>", new object[] { info });
            }
            else if (!string.IsNullOrEmpty(info) && ex != null)
            {
                string errorMsg = BeautyErrorMsg(ex);
                logerror.ErrorFormat("【附加信息】 : {0}<br>{1}", new object[] { info, errorMsg });
            }
            else if (string.IsNullOrEmpty(info) && ex != null)
            {
                string errorMsg = BeautyErrorMsg(ex);
                logerror.Error(errorMsg);
            }
        }

        /// <summary>
        /// 美化错误信息
        /// </summary>
        /// <param name="ex">异常</param>
        /// <returns>错误信息</returns>
        private static string BeautyErrorMsg(Exception ex)
        {
            string errorMsg = string.Format("【异常类型】：{0} <br>【异常信息】：{1} <br>【堆栈调用】：{2}", new object[] { ex.GetType().Name, ex.Message, ex.StackTrace });
            errorMsg = errorMsg.Replace("\r\n", "<br>");
            errorMsg = errorMsg.Replace("位置", "<strong style=\"color:red\">位置</strong>");
            return errorMsg;
        }
    }
}