using System;
using System.Text;
using UnityEngine;

public static class TimeUtility
{
    private static DateTime s_ServerTime = DateTime.Now;

    private static float _checkTime = 0;
    /// <summary>
    /// 当前服务器时间
    /// </summary>
    public static DateTime ServerNow
    {
        get
        {
            float tick = Time.realtimeSinceStartup - _checkTime;
            DateTime real = s_ServerTime.AddSeconds(tick);
            return real;
        }
        private set
        {
            s_ServerTime = value;
        }
    }

    //A0 04 同步客户端时间 #tagServerDateTime 中的 CrossServerTime 为玩家在子服中收到的跨服时间
    static DateTime s_CrossServerTime = DateTime.Now;
    static float _crossCheckTime = 0;
    public static DateTime CrossServerNow
    {
        get
        {
            float tick = Time.realtimeSinceStartup - _crossCheckTime;
            DateTime real = s_CrossServerTime.AddSeconds(tick);
            return real;
        }
        private set { s_CrossServerTime = value; }
    }

    /// <summary>
    /// 年份
    /// </summary>
    public static int Year
    {
        get { return ServerNow.Year; }
    }
    /// <summary>
    /// 月份
    /// </summary>
    public static int Month
    {
        get { return ServerNow.Month; }
    }
    /// <summary>
    /// 天
    /// </summary>
    public static int Day
    {
        get { return ServerNow.Day; }
    }
    /// <summary>
    /// 小时
    /// </summary>
    public static int Hour
    {
        get { return ServerNow.Hour; }
    }
    /// <summary>
    /// 分钟
    /// </summary>
    public static int Minute
    {
        get { return ServerNow.Minute; }
    }
    /// <summary>
    /// 秒
    /// </summary>
    public static int Second
    {
        get { return ServerNow.Second; }
    }

    // 风险点1 System.TimeZone.CurrentTimeZone.ToLocalTime 为本机, ServerNow为服务器,如果不存在同一个时区会造成时间差
    // 风险点2 OriginalTime固定写死中国时区,可根据utc计算出时区,方便海外各个版本使用
    /// <summary>
    /// 服务器起始时间
    /// </summary>
    public static readonly DateTime OriginalTime = new DateTime(1970, 1, 1, 8, 0, 0);
    public static readonly DateTime ClientOriginalTime = new DateTime(1, 1, 1, 0, 0, 0);
    /// <summary>
    /// 服务器时间相比起始时间的秒数(即服务器的时间戳)
    /// </summary>
    public static int AllSeconds
    {
        get
        {
            TimeSpan t = ServerNow - OriginalTime;
            return (int)t.TotalSeconds;
        }
    }

    //1年中的第几周，以服务端为准，python和c#算出来不一样
    public static int WeekOfYear
    {
        get; private set;
    }
    //开服第几天 从0开始 
    public static int OpenDay
    {
        get; private set;
    }

    public static bool IsMixServer
    {
        get; private set;
    }

    public static int MixOpenDay
    {
        get; private set;
    }

    public static DayOfWeek openServerDayOfWeek;

    public static int OpenWeekCnt
    {
        get
        {
            var _openDay = ServerNow.AddDays(-OpenDay);
            var _opendayOfWeek = _openDay.DayOfWeek == DayOfWeek.Sunday ? 7 : (int)_openDay.DayOfWeek;
            _openDay = _openDay.AddDays(7 - _opendayOfWeek + 1);
            var _openTime = new DateTime(_openDay.Year, _openDay.Month, _openDay.Day, 0, 0, 0);
            var _total = Mathf.Max(0, (float)ServerNow.Subtract(_openTime).TotalDays);
            return Mathf.CeilToInt((float)_total / 7);
        }
    }

    static StringBuilder stringBuilder = new StringBuilder();

    public static DateTime createRoleTime { get; private set; }
    private static DateTime createRoleTimeTail = DateTime.Now;

    //从1开始
    public static int CreateDays
    {
        get
        {
            return Mathf.CeilToInt((float)(ServerNow - createRoleTimeTail).TotalDays);
        }
    }

    public static int CreateSeconds
    {
        get
        {
            return (int)(createRoleTime - OriginalTime).TotalSeconds;
        }
    }

    public static event Action OnCreateRoleTimeRefresh;
    // public static void OnRefreshCreateRoleTime(HA124_tagMCPlayerInfo _package)
    // {


    //     createRoleTime = Convert.ToDateTime(UIHelper.GetTime(_package.CreateRoleTime));
    //     createRoleTimeTail = new DateTime(createRoleTime.Year, createRoleTime.Month, createRoleTime.Day);
    //     if (OnCreateRoleTimeRefresh != null)
    //     {
    //         OnCreateRoleTimeRefresh();
    //     }
    //     Debug.LogFormat("CreateRoleTime {0}  CreateDays {1}", createRoleTimeTail, CreateDays);
    // }

    public static event Action OnServerTimeRefresh;
    public static void OnRefreshServerTime(HA004_tagServerDateTime vNetData)
    {
        var dateTime = new DateTime(vNetData.Year, vNetData.Month, vNetData.Day, vNetData.Hour, vNetData.Minute, vNetData.Second);

        s_ServerTime = dateTime;
        _checkTime = Time.realtimeSinceStartup;
        if (OnServerTimeRefresh != null)
        {
            OnServerTimeRefresh();
        }

        s_CrossServerTime = Convert.ToDateTime(vNetData.CrossServerTime);
        _crossCheckTime = Time.realtimeSinceStartup;

        TimeDownMgr.Instance.Begin(TimeDownMgr.CoolTimeType.SyncServerTime, 60, (float tick) =>
        {
            SyncServerTime();
        }, 60);
    }

    public static event Action OnServerOpenDayRefresh;
    public static void OnRefreshServerOpenDay(HA005_tagOpenServerDay package)
    {
        {
            OpenDay = package.Day;
            IsMixServer = package.IsMixServer == 1;
            MixOpenDay = package.MixDay;
            openServerDayOfWeek = package.OpenWeekday == 7 ? DayOfWeek.Sunday : (DayOfWeek)package.OpenWeekday;
            WeekOfYear = package.WeekOfYear;
        }

        OnRefreshServerTime(new HA004_tagServerDateTime()
        {
            Year = package.NowYear,
            Month = package.NowMonth,
            Day = package.NowDay,
            Hour = package.NowHour,
            Minute = package.NowMinute,
            Second = package.NowSecond,
            MicSecond = package.NowMicSecond,
            socketType = package.socketType,
        });


        if (OnServerOpenDayRefresh != null)
        {
            OnServerOpenDayRefresh();
        }
    }

    public static void SyncServerTime()
    {
        CA002_tagClientRequestServerTime pak = new CA002_tagClientRequestServerTime();
        GameNetSystem.Instance.SendInfo(pak);

    }

    /// <summary>
    /// 根据服务器下发的秒数获取时间
    /// </summary>
    /// <param name="seconds"></param>
    /// <returns></returns>
    public static DateTime GetTime(uint seconds)
    {
        DateTime d = OriginalTime.AddTicks(seconds * TimeSpan.TicksPerSecond);
        return d;
    }

    //时：分：秒
    //例子
    //xx:xx:xx
    public static string SecondsToHMS(int _seconds)
    {
        int hours = _seconds / 3600;
        int mins = _seconds % 3600 / 60;
        int seconds = _seconds % 60;
        return StringUtility.Contact(hours.ToString("D2"), ":", mins.ToString("D2"), ":", seconds.ToString("D2"));
    }

    //详细显示
    //xx小时xx分XX秒
    //xx分XX秒
    //xx秒
    public static string SecondsToHMSEx(int _seconds)
    {
        int hours = _seconds % 86400 / 3600;
        int mins = _seconds % 3600 / 60;
        int seconds = _seconds % 60;
        if (hours > 0)
        {
            return StringUtility.Contact(hours, Language.Get("L1072"), mins, Language.Get("L1073"), seconds, Language.Get("L1075"));
        }
        else if (mins > 0)
        {
            return StringUtility.Contact(mins, Language.Get("L1073"), seconds, Language.Get("L1075"));
        }
        else
        {
            return StringUtility.Contact(seconds, Language.Get("L1075"));
        }
    }


    //例子；分：秒
    //xx:xx
    public static string SecondsToMS(int _seconds)
    {
        int mins = _seconds % 3600 / 60;
        int seconds = _seconds % 60;
        return StringUtility.Contact(mins.ToString("D2"), ":", seconds.ToString("D2"));
    }

    //例子；不足的不显示 如0天0:xx:xx:,显示为xx:xx
    //x天xx:xx:xx秒
    public static string SecondsToDHMSCHS(int _seconds)
    {
        int days = _seconds / 86400;
        int hours = _seconds % 86400 / 3600;
        int mins = _seconds % 3600 / 60;
        int seconds = _seconds % 60;
        return StringUtility.Contact(days > 0 ? days.ToString() : string.Empty,
            days > 0 ? Language.Get("L1074") + " " : string.Empty, hours > 0 ? hours.ToString() : string.Empty,
            hours > 0 ? ":" : string.Empty, mins >= 0 ? mins.ToString("D2") : string.Empty,
            mins >= 0 ? ":" : string.Empty, seconds >= 0 ? seconds.ToString("D2") : string.Empty,
            seconds >= 0 ? string.Empty : string.Empty);
    }


    //例子
    //x天
    //x时
    //x分 最小1分
    public static string SecondsToTitleDHMS(int _seconds)
    {
        int days = _seconds / 86400;
        if (days > 0)
        {
            return StringUtility.Contact(days, Language.Get("L1074"));
        }
        int hours = _seconds % 86400 / 3600;
        if (hours > 0)
        {
            return StringUtility.Contact(hours, Language.Get("Hour"));
        }
        int mins = Mathf.CeilToInt(_seconds % 3600 / 60.0f);
        if (mins > 0)
        {
            return StringUtility.Contact(mins, Language.Get("Minute"));
        }
        return StringUtility.Contact(1, Language.Get("Minute"));
    }


    //例子；
    //xx:xx:xx
    public static string SecondsToHMSCHSRetain(int _seconds, bool _hour = true, bool _min = true, bool _sec = true)
    {
        stringBuilder.Length = 0;
        int hours = _seconds / 3600;
        int mins = _seconds % 3600 / 60;
        int seconds = _seconds % 60;
        if (hours > 0 || _hour)
        {
            stringBuilder.Append(hours);
            stringBuilder.Append(":");
        }
        if (mins > 0 || _min)
        {
            stringBuilder.Append(mins);
            stringBuilder.Append(":");
        }
        if (seconds > 0 || _sec)
        {
            stringBuilder.Append(seconds);
            //stringBuilder.Append(":");
        }
        return stringBuilder.ToString();
    }

    //例子
    //大于1天的显示：x天xx:xx:xx
    //xx:xx:xx
    public static string SecondsToDHMS(int _seconds)
    {
        int days = _seconds / 86400;
        int hours = _seconds % 86400 / 3600;
        int mins = _seconds % 3600 / 60;
        int seconds = _seconds % 60;
        if (days > 0)
        {
            return StringUtility.Contact(days, Language.Get("L1074"), " ", hours.ToString("D2"), ":", mins.ToString("D2"), ":", seconds.ToString("D2"));
        }
        return StringUtility.Contact(hours.ToString("D2"), ":", mins.ToString("D2"), ":", seconds.ToString("D2"));
    }

    //极简显示
    // x天 或者 x天x小时
    // x小时 或者 x小时x分
    // x分
    // x秒
    public static string SecondsToShortDHMS(int _seconds)
    {
        int days = _seconds / 86400;
        int hours = _seconds % 86400 / 3600;
        int mins = _seconds % 3600 / 60;
        int seconds = _seconds % 60;
        if (days > 0)
        {
            if (hours == 0)
            {
                return StringUtility.Contact(days, Language.Get("L1074"));
            }
            return StringUtility.Contact(days, Language.Get("L1074"), hours, Language.Get("L1072"));
        }
        else if (hours > 0)
        {
            if (mins == 0)
            {
                return StringUtility.Contact(hours, Language.Get("L1072"));
            }
            return StringUtility.Contact(hours, Language.Get("L1072"), mins, Language.Get("L1073"));
        }
        else if (mins > 0)
        { 
            return StringUtility.Contact(mins, Language.Get("L1073"));
        }
        return StringUtility.Contact(seconds, Language.Get("L1075"));
    }



    //例子
    //大于24小时显示：x天xx小时xx分
    //小于24小时显示：xx:xx:xx
    public static string SecondsToDHMSEx(int _seconds)
    {
        int days = _seconds / 86400;
        int hours = _seconds % 86400 / 3600;
        int mins = _seconds % 3600 / 60;
        int seconds = _seconds % 60;
        if (days > 0)
        {
            return StringUtility.Contact(days, Language.Get("L1074"), hours.ToString("D2"), Language.Get("L1072"), mins.ToString("D2"), Language.Get("L1073"));
        }
        return StringUtility.Contact(hours.ToString("D2"), ":", mins.ToString("D2"), ":", seconds.ToString("D2"));
    }


    //例子
    //x天
    //x时
    //x分
    //x秒
    public static string SecondsToConsumeRebate(int _seconds)
    {
        float days = (float)_seconds / 86400;
        float hours = (float)_seconds % 86400 / 3600;
        int mins = _seconds % 3600 / 60;
        float seconds = (float)_seconds % 60;
        if (days >= 1)
        {
            return StringUtility.Contact(Mathf.CeilToInt(days), Language.Get("L1074"));
        }
        else if (hours >= 1)
        {
            return StringUtility.Contact(Mathf.CeilToInt(hours), Language.Get("L1072"));
        }
        else if (mins >= 1)
        {
            return StringUtility.Contact(mins, Language.Get("L1073"));
        }
        else
        {
            return StringUtility.Contact(seconds, Language.Get("L1075"));
        }
    }

    /// <summary>
    /// 获取一天的0点时间
    /// </summary>
    /// <param name="now"></param>
    /// <returns></returns>
    public static DateTime GetDayStartTime(int year, int month, int day)
    {
        return new DateTime(year, month, day);
    }

    /// <summary>
    /// 获取当天的0点时间
    /// </summary>
    /// <returns></returns>
    public static DateTime GetTodayStartTime()
    {
        var now = ServerNow;
        return new DateTime(now.Year, now.Month, now.Day);
    }

    /// <summary>
    /// 获取当天的24点时间
    /// </summary>
    /// <returns></returns>
    public static DateTime GetTodayEndTime()
    {
        var now = ServerNow.AddDays(1);
        return new DateTime(now.Year, now.Month, now.Day);
    }

    /// <summary>
    /// 获取下一个凌晨5点的时间
    /// </summary>
    /// <returns></returns>
    public static DateTime GetNext5Time()
    {
        var now = ServerNow;
        if (now.Hour < 5)
        {
            return new DateTime(now.Year, now.Month, now.Day, 5, 0, 0);
        }
        return new DateTime(now.Year, now.Month, now.Day, 5, 0, 0).AddDays(1);

    }

    //开服天结束倒计时；单位秒
    public static int GetRemindTimeByOpenDay(int days)
    {
        if (days <= OpenDay)
            return 0;

        return (days - OpenDay) * 86400 - (int)(ServerNow - GetTodayStartTime()).TotalSeconds;

    }

    //获得已过了多少天（0点过天整数，第一天为0）
    // seconds 为时间戳
    public static int GetPassDays(int seconds)
    {
        DateTime d = OriginalTime.AddTicks(seconds * TimeSpan.TicksPerSecond);
        DateTime startTime = new DateTime(d.Year, d.Month, d.Day);

        return (ServerNow - startTime).Days;
    }

    //今日剩余秒数
    public static int GetTodayRemainSeconds()
    {
        return (int)(GetTodayEndTime() - ServerNow).TotalSeconds;
    }
}