using System;
using UnityEngine;

namespace AibisDream.Kit
{
    internal class LogKit : MonoBehaviour
    {
        /// <summary>
        /// 文件名称格式
        /// 请注意，不要删除时间格式，否则会造成保存不成功
        /// </summary>
        public static string LogFileName => "Log{0:_yyyy_MM_dd}.txt";

        /// <summary>
        /// 日志文件路径
        /// </summary>
        public static string LogPath => Application.streamingAssetsPath + "/LogFile";

        /// <summary>
        /// 日志保存最近几天的内容
        /// </summary>
        public const int SaveDays = 30;

        /// <summary>
        /// 每一行的打印内容
        /// </summary>
        private static string LogContent => Time + ": {0}\n{1}";

        private FileLogger _fileLogger;

        private static string Time => DateTime.Now.ToString("[HH:mm:ss.fffd]");

        private void Awake()
        {
#if !UNITY_EDITOR
            DontDestroyOnLoad(gameObject);
            _fileLogger = new FileLogger(LogFileName, LogPath, SaveDays);
            LogMessage($"Ver.{Application.version}", "", LogType.Log);
            Application.logMessageReceivedThreaded += LogMessage;
#endif
        }

        private void LogMessage(string condition, string stackTrace, LogType type)
        {
            _fileLogger?.Write(string.Format(LogContent, condition, stackTrace));
        }

        private void OnDestroy()
        {
            _fileLogger?.OnDestroy();
            _fileLogger = null;
            Application.logMessageReceivedThreaded -= LogMessage;
        }
    }
}