using CommonAI.data;
using CommonAI.Data;
using CommonAI.Zone;
using CommonAI.Zone.Helper;
using CommonAI.Zone.Instance;
using CommonAI.Zone.ZoneEditor;
using CommonLang;
using System;
using XmdsCommonServer.Plugin;
using XmdsCommonServer.Plugin.Scene;
using XmdsCommonServer.Plugin.XmdsSkillTemplate.Skills;
using XmdsCommonSkill.Plugin.FunctionEvent;

namespace XmdsCommonZone.Zones
{
    [XmdsExtensionZone(91002)]
    public class Zone91002 : XmdsServerScene
    {
        private InstanceUnit.BuffState mFightBuff;
        public static int CheckIntervalMS = 5000;
        public static int StartFightBuffDelayMS = 60000;

        public enum FightBuffStatus
        {
            InVaild,
            CountDown,
            Vaild,
        }
        private FightBuffStatus mFightBuffState = FightBuffStatus.InVaild;
        public Zone91002(TemplateManager templates, InstanceZoneListener listener, SceneData data, GSCreateAreaData gsData, string bindGameSrvId)
            : base(templates, listener, data, gsData, bindGameSrvId)
        {
            OnUnitDead += Zone91002_OnUnitDead;
            OnUnitAdded += Zone91002_OnUnitAdded;
            OnUnitRebirth += Zone91002_OnUnitRebirth;
            OnUnitRemoved += Zone91002_OnUnitRemoved;
        }

        protected override void Disposing()
        {
            base.Disposing();
            OnUnitDead -= Zone91002_OnUnitDead;
            OnUnitAdded -= Zone91002_OnUnitAdded;
            OnUnitRebirth -= Zone91002_OnUnitRebirth;
            OnUnitRemoved -= Zone91002_OnUnitRemoved;
        }

        private void FightBuff_Tick(TimeTaskMS task)
        {
            if(mFightBuff != null && mFightBuff.IsEnd())
            {
                //转移战神buff
                AddFightBuffToRandom((p) =>{ return p != mFightBuff.Owner && !p.IsDead(); });
            }
            else if(mFightBuff == null && AllPlayersCount > 1)
            {
                AddFightBuffToRandom();
            }
        }

        private void StartFightBuff_Tick(TimeTaskMS task)
        {
            mFightBuffState = FightBuffStatus.Vaild;
            AddFightBuffToRandom();
            AddTimePeriodicMS(CheckIntervalMS, FightBuff_Tick);
        }

        private void Zone91002_OnUnitRemoved(InstanceZone zone, InstanceUnit obj)
        {
        }

        /// <summary>
        /// 给玩家上无敌buff，无敌是多么的寂寞
        /// 无敌buff：当玩家刚进入该场景或者死亡复活后，给予一个无敌的buff，
        /// 该buff除了无敌效果以外，在buff存在期间，拥有buff的玩家无法使用任何技能；        
        /// </summary>
        /// <param name="player"></param>
        private void AddInvincibleBuffTo(InstancePlayer player)
        {
            BattleFunction.GetInstance().TriggrBattleFunction(XmdsBattleFunctionEvent_10010.EventID, player.Virtual, player.Virtual);
        }

        /// <summary>
        /// -- 战神buff:开战1分钟后，通过战斗事件随机指定一名玩家获得战神buff，该buff会给玩家增加攻击、生命、防御。
        /// 持续时间结束或者携带buff的玩家死亡后，该buff会随机转移给另一位玩家，并且持续时间重置；
        /// </summary>
        /// <param name="player"></param>
        private void AddFightBuffTo(InstancePlayer player)
        {
            BattleFunction.GetInstance().TriggrBattleFunction(XmdsBattleFunctionEvent_10002.EventID, player.Virtual, player.Virtual);
        }

        private void AddFightBuffToRandom(Predicate<InstancePlayer> select = null)
        {
            if(select == null)
            {
                select = new Predicate<InstancePlayer>(p => { return true; });
            }
            var player = selectRandomUnit(select);
            if(player != null)
            {
                AddFightBuffTo(player);
            }
            else
            {
                mFightBuff = null;
            }
        }

        private void Zone91002_OnUnitRebirth(InstanceZone zone, InstanceUnit obj)
        {
            if (obj.IsPlayer)
            {
                AddInvincibleBuffTo(obj as InstancePlayer);
            }
        }


        private void Zone91002_OnUnitAdded(InstanceZone zone, InstanceUnit obj)
        {
            if (obj.IsPlayer)
            {
                if (mFightBuffState == FightBuffStatus.InVaild)
                {
                    mFightBuffState = FightBuffStatus.CountDown;
                    AddTimeDelayMS(StartFightBuffDelayMS, StartFightBuff_Tick);
                }
                //else if(mFightBuffState == FightBuffStatus.Vaild && mFightBuff == null)
                //{
                //    AddFightBuffToRandom();
                //}
                //监听战神buff
                obj.OnGotBuff += Obj_OnGotBuff;
                AddInvincibleBuffTo(obj as InstancePlayer);
            }
        }

        private void Obj_OnGotBuff(InstanceUnit obj, InstanceUnit.BuffState buff)
        {
            //if(buff.ID == XmdsBattleFunctionEvent_10002.Buff_ID)
            //{
            //    mFightBuff = buff;               
            //}
        }

        private void Zone91002_OnUnitDead(InstanceZone zone, InstanceUnit obj, InstanceUnit attacker)
        {
            
        }

    }
}