using UnityEngine;
using System;
using CSNetwork;

namespace BrewMonster.Network
{
    public partial class EC_Game
    {
        private static uint m_AbsTickStart;
        private static int m_AbsTimeStart;
        private static int m_iTimeError;     // 服务器与本机时间差(秒) // Time error in seconds
        private static int m_iTimeZoneBias;  // 服务器时区偏移(秒) // Server timezone bias in seconds
        private static bool m_bServerTimeInited;
        public static int GetTimeZoneBias() { return m_iTimeZoneBias; }
        // 设置时间误差 // Set time error
        public static void SetServerTime(int iSevTime, int iTimeZoneBias)
        {
            Debug.Log($"SetServerTime, iSevTime = {iSevTime}, iTimeZoneBias = {iTimeZoneBias}");
            int iOldTimeError = m_iTimeError;
            int nowUnix = (int)DateTimeOffset.UtcNow.ToUnixTimeSeconds();
            m_iTimeError = iSevTime - nowUnix; // 记录与本机的时间差 // store delta with local
            m_iTimeZoneBias = iTimeZoneBias;   // 记录服务器时区偏移 // store server timezone bias

            // 计算服务器本地时间并设置昼夜 // Compute server local time and set time of day
            var serverLocal = DateTimeOffset.FromUnixTimeSeconds((long)iSevTime + iTimeZoneBias);
            int nTimeInDay = serverLocal.Hour * 3600 + serverLocal.Minute * 60 + serverLocal.Second;
            // GetGameRun()->GetWorld()->GetSunMoon()->SetTimeOfTheDay(nTimeInDay / (4.0f * 3600.0f));
            // 设置昼夜时间(原逻辑保留为注释) // Set time of day (original call left commented)

            // 防沉迷时长修正 // Anti-wallow playtime adjust
            // S2C::player_wallow_info wallowinfo = GetGameRun()->GetWallowInfo();
            // if (wallowinfo.anti_wallow_active)
            // {
            //     wallowinfo.play_time += m_iTimeError - iOldTimeError;
            //     GetGameRun()->SetWallowInfo(wallowinfo);
            // }

            // 初始化绝对时间参考点 // Initialize absolute time reference
            m_AbsTimeStart = iSevTime;
            m_AbsTickStart = (uint)(Time.realtimeSinceStartup * 1000.0f);
            m_bServerTimeInited = true;
            Debug.Log($"timeGetTime(), TickStart = {m_AbsTickStart}");
        }

        public static int GetServerAbsTime()
        {
            // Fallback: if server time was never initialized (SetServerTime not called),
            // return local unix time seconds so task timestamps (usually epoch seconds) still work.
            // This makes wait-time/countdown and timetable logic behave correctly even before server sync.
            if (!m_bServerTimeInited || m_AbsTimeStart == 0)
            {
                return (int)DateTimeOffset.UtcNow.ToUnixTimeSeconds() + m_iTimeError;
            }

            uint curTick = (uint)(Time.realtimeSinceStartup * 1000.0f);

            if (curTick < m_AbsTickStart)
            {
                // if player run this game more than 49.71 days...
                uint sec = (((uint)~0u - m_AbsTickStart + 1u) + curTick) / 1000u;
                m_AbsTickStart = curTick;
                m_AbsTimeStart += (int)sec;
                return m_AbsTimeStart;
            }
            else
            {
                uint sec = (curTick - m_AbsTickStart) / 1000u;
                return m_AbsTimeStart + (int)sec;
            }
        }
        
        
    }
}