/*
 Sog 游戏基础库
 2016 by zouwei
 */

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

using Sog;
using ProtoCSStruct;
using Sog.IO;

namespace Game
{
    public static class StopServerSvc
    {
        private static int STOP_SERVER_TIME_NOTICE = 15;
        private static long m_gmStartStopServerTime = 0;
        private static long m_gmStopServerTime = 0;
        private static int m_lastNoticeMintue = 0;

        private static long m_lastTimeForCheckAllDataSaveToQuit;

        public static void StartStopServer(int stopAfterMintue)
        {
            if(m_gmStartStopServerTime != 0)
            {
                TraceLog.Debug("StopServerSvc.StartStopServer already stop server at {0}"
                    , AppTime.ConvertUnixTimeToDateTime(m_gmStartStopServerTime*1000));
                return;
            }

            var notify = new SSGmStopServerNotify();
            GameServerUtils.GetPacketSender().SendToWorldServer((int)SSGameMsgID.GmStopServerNotify, ref notify, 0);
			
			GameServerUtils.GetApp().PrepareStop();

            STOP_SERVER_TIME_NOTICE = stopAfterMintue;

            m_gmStartStopServerTime = GameServerUtils.GetTimeSecond();

            // 正式停服时间
            m_gmStopServerTime = m_gmStartStopServerTime + STOP_SERVER_TIME_NOTICE * 60 - 1;

            TraceLog.Debug("StopServerSvc.StartStopServer stop server after {0} mintue, at {1}"
                , STOP_SERVER_TIME_NOTICE, AppTime.ConvertUnixTimeToDateTime(m_gmStopServerTime * 1000));

            m_lastNoticeMintue = STOP_SERVER_TIME_NOTICE;

            AddNotice(m_lastNoticeMintue);
        }

        private static void AddNotice(int mintue)
        {
	        SSSysNoticeLamp notify = new SSSysNoticeLamp();
	        notify.Id = 1;
	        notify.Params.Add(mintue.ToString());
	        GameServerUtils.GetPacketSender().SendToWorldServer((int)SSGameMsgID.SysNoticeLamp, ref notify, 0);
		}

        public static void Tick(long nowMs)
        {
            TickGmCmdStopCommand(nowMs);

            TickCheckAllDataSaveToExit(nowMs);
        }

        private static void TickGmCmdStopCommand(long nowMs)
        {
            if(m_gmStartStopServerTime == 0)
            {
                return;
            }

            int leftMintue = (int)(m_gmStopServerTime - GameServerUtils.GetTimeSecond()) / 60 + 1;

            if(leftMintue < m_lastNoticeMintue && leftMintue > 0)
            {
                m_lastNoticeMintue = leftMintue;

                AddNotice(m_lastNoticeMintue);
            }

            //执行停服,延迟1秒
            if(GameServerUtils.GetTimeSecond() >= m_gmStopServerTime + 1
                && GameServerUtils.GetApp().CurrStopStage != ServerStopStage.stopping)
            {
                TraceLog.Debug("StopServerSvc.TickGmCmdStopCommand do stop server now");

                GameServerUtils.GetApp().StopServer();
            }
        }

        private static void TickCheckAllDataSaveToExit(long nowMs)
        {
            //没有停服
            if (GameServerUtils.GetApp().CurrStopStage != ServerStopStage.stopping)
            {
                return;
            }

            //1秒检查一次
            if (nowMs - m_lastTimeForCheckAllDataSaveToQuit < 1000)
            {
                return;
            }

            m_lastTimeForCheckAllDataSaveToQuit = nowMs;

            if (IsAllPlayerSaveSuccess())
            {
                TraceLog.Debug("StopServerSvc:TickCheckAllDataSaveToQuit all player data save success");

                GameServerUtils.GetApp().SetStopSuccess();

                //保存文件数据库
                ServerDataFileDbSvc.SaveDataToFile();
            }
        }

        private static bool IsAllPlayerSaveSuccess()
        {
            int iPlayerCount = GameServerUtils.GetPlayerTableOp().Table.m_uidTable.Count;

            TraceLog.Trace("StopServerSvc:IsAllPlayerSaveSuccess player object count {0}", iPlayerCount);

            return iPlayerCount == 0;
        }

    }
}