using CommonAI.Data;
using CommonAI.Zone.Formula;
using CommonAI.Zone.Helper;
using CommonAI.Zone.Instance;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using XmdsCommon.Plugin;
using XmdsCommonServer.Plugin;
using XmdsCommonServer.Plugin.Units;
using XmdsCommonServer.Plugin.XmdsSkillTemplate.DamageCalculator;
using XmdsCommonServer.Plugin.XmdsSkillTemplate.Skills;

namespace XmdsCommonSkill.Plugin.Buffs
{
    /// <summary>
    /// FileName: XmdsBuff_Mocking.cs
    /// Author: Alex.Yu
    /// Corporation:... 
    /// Description: 嘲讽BUFF.
    /// DateTime: 2015/6/16 17:43:44
    /// </summary>

    public class XmdsBuff_Mocking : XmdsBuffBase
    {
        //嘲讽目标.
        public XmdsVirtual BuffTarget = null;
        public int damageReduce = 5000;

        private uint senderId = 0;
        private int mHandleUUID = 0;
        private int mHandleUUID1 = 0;

        public override int GetAbilityID()
        {
            return (int)XmdsCommon.Plugin.XmdsBuffProperties.XmdsBuffAbility.Mocking;
        }

		public override void CopyTo(UnitBuff other)
		{
			var ret = other as XmdsBuff_Mocking;
			ret.BuffTarget = this.BuffTarget;
			this.BuffTarget = null;
			ret.damageReduce = this.damageReduce;
			ret.senderId = this.senderId;
			base.CopyTo(other);
		}

		protected override void OnBindTemplate(ref CommonAI.Zone.BuffTemplate buffTemplate)
        {

        }

		protected override void OnBuffBegin(XmdsCommonServer.Plugin.XmdsVirtual hitter, XmdsCommonServer.Plugin.XmdsVirtual attacker, CommonAI.Zone.Instance.InstanceUnit.BuffState state)
        {
            mHandleUUID = hitter.RegistGetAtkTarget(OnGetAtkTarget, null, true);

            if(this.damageReduce > 0)
            {
                senderId = attacker.mUnit.ID;
                mHandleUUID1 = hitter.RegistOnHitOther(OnHandleHitOther, null);
            }   
            
            if(hitter.mUnit.IsPlayer)
            {
                hitter.mUnit.AddActionSubState(UnitActionSubStatus.Mocking);
                XmdsInstancePlayer player = hitter.mUnit as XmdsInstancePlayer;
                player.setMocking(attacker.mUnit);
            }      
        }

         protected override void OnBuffEnd(XmdsCommonServer.Plugin.XmdsVirtual hitter, CommonAI.Zone.Instance.InstanceUnit.BuffState state, bool replace)
        {
            BuffTarget = null;
            hitter.UnRegistGetAtkTarget(mHandleUUID);

            if(this.damageReduce > 0 && mHandleUUID1 > 0)
            {
                hitter.UnRegistOnHitOther(mHandleUUID1);
            }

            if (hitter.mUnit.IsPlayer)
            {
                hitter.mUnit.RemoveActionSubState(UnitActionSubStatus.Mocking);
                XmdsInstancePlayer player = hitter.mUnit as XmdsInstancePlayer;
                player.setMocking(null);
            }
			else if(!replace)
			{
				//怪物嘲讽，且非替换才处理仇恨值相关逻辑
				hitter.mHateSystem.MockingInheritHatred((XmdsVirtual)state.Sender.Virtual);
			}

		}

		private XmdsVirtual OnGetAtkTarget(XmdsVirtual target, GameSkill gs)
        {
            //有嘲讽目标且目标仍然有效.
            if(BuffTarget != null && BuffTarget.mUnit.IsActive)
            {
                return BuffTarget;
            }

            return target;
        }

        private float OnHandleHitOther(float damage, XmdsVirtual hitted, XmdsVirtual attacker, AttackSource source, 
            ref XmdsVirtual.AtkResult result, DamageType damageType, GameSkill skill, ref bool isEndDispatch)
        {
			//2021.5.29,MMO-16539:修改成全部伤害减免
			if (hitted.mUnit.ID == this.senderId/* && source.FromSkillType == XmdsSkillType.normalAtk*/)
            {
                damage -= damage * XmdsUnitProp.PER * this.damageReduce;
            }
            return damage;
        }

        protected override void OnDispose()
        {
            BuffTarget = null;
            base.OnDispose();
        }
    }
}