using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Xml.Linq;

namespace HslCommunication.LogNet
{
    /*************************************************************************************
     * 
     *    目标：
     *        1. 高性能的日志类
     *        2. 灵活的配置
     *        3. 日志分级
     *        4. 控制输出
     *        5. 方便筛选
     *        6. 方便的配置按小时，天，月，年记录
     * 
     * 
     * 
     *************************************************************************************/


    /// <summary>
    /// 日志类的管理器
    /// </summary>
    public class LogNetManagment
    {


        /// <summary>
        /// 存储文件的时候指示单文件存储
        /// </summary>
        internal const int LogSaveModeBySingleFile = 1;
        /// <summary>
        /// 存储文件的时候指示根据文件大小存储
        /// </summary>
        internal const int LogSaveModeByFileSize = 2;
        /// <summary>
        /// 存储文件的时候指示根据日志时间来存储
        /// </summary>
        internal const int LogSaveModeByDateTime = 3;

        internal const string TextDebug = "调试";
        internal const string TextInfo = "信息";
        internal const string TextWarn = "警告";
        internal const string TextError = "错误";
        internal const string TextFatal = "致命";
        internal const string TextAbandon = "放弃";
        internal const string TextAll = "全部";


        /// <summary>
        /// 日志文件的头标志
        /// </summary>
        internal const string LogFileHeadString = "Logs_";


        internal static string GetDegreeDescription(HslMessageDegree degree)
        {
            switch (degree)
            {
                case HslMessageDegree.DEBUG: return TextDebug;
                case HslMessageDegree.INFO: return TextInfo;
                case HslMessageDegree.WARN: return TextWarn;
                case HslMessageDegree.ERROR: return TextError;
                case HslMessageDegree.FATAL: return TextFatal;
                case HslMessageDegree.None: return TextAbandon;
                default: return TextAbandon;
            }
        }


        /// <summary>
        /// 公开的一个静态变量，允许随意的设置
        /// </summary>
        public static ILogNet LogNet { get; set; }


        /// <summary>
        /// 通过异常文本格式化成字符串用于保存或发送
        /// </summary>
        /// <param name="text"></param>
        /// <param name="ex"></param>
        /// <returns></returns>
        public static string GetSaveStringFromException(string text, Exception ex)
        {
            StringBuilder builder = new StringBuilder(text);

            if (ex != null)
            {
                if (!string.IsNullOrEmpty(text))
                {
                    builder.Append(" : ");
                }
                builder.Append("错误消息：");
                builder.Append(ex.Message);
                builder.Append(Environment.NewLine);
                builder.Append("源：");
                builder.Append(ex.Source);
                builder.Append(Environment.NewLine);
                builder.Append("堆栈：");
                builder.Append(ex.StackTrace);
                builder.Append(Environment.NewLine);
                builder.Append("错误类型：");
                builder.Append(ex.GetType().ToString());
                builder.Append(Environment.NewLine);
                builder.Append("调用方法：");
                builder.Append(ex.TargetSite?.ToString());
                builder.Append(Environment.NewLine);
                builder.Append("\u0002/=================================================[    Exception    ]================================================/");
            }

            return builder.ToString();
        }
    }

}