using CommonAI.Data;
using CommonAI.Zone;
using CommonAI.Zone.Formula;
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.XmdsSkillTemplate.Skills;

namespace XmdsCommonSkill.Plugin.Buffs
{

    /// <summary>
    /// 单位收到伤害回调.
    /// </summary>
    public class XmdsBuff_Event_OnHitDamage : XmdsBuffBase
    {
        private int mHandleUUID = 0;
        //绑定的技能信息
        public GameSkill bindSkill = null;
        public XmdsCommonServer.Plugin.XmdsSkillTemplate.Skills.IOnHit OnHitDamageEvent;

        public override int GetAbilityID()
        {
            return (int)XmdsBuffProperties.XmdsBuffAbility.Event_OnHitDamageEvent;
        }

		public override void CopyTo(UnitBuff other)
		{
			var ret = other as XmdsBuff_Event_OnHitDamage;
			ret.bindSkill = this.bindSkill;
			ret.OnHitDamageEvent = this.OnHitDamageEvent;
			base.CopyTo(other);
		}

		protected override void OnBindTemplate(ref BuffTemplate buffTemplate)
        {
            //关联性BUFF必须在施放者死亡后清除.
            buffTemplate.IsRemoveOnSenderRemoved = true;
            base.OnBindTemplate(ref buffTemplate);
        }

        protected override void OnBuffBegin(XmdsCommonServer.Plugin.XmdsVirtual hitter, XmdsCommonServer.Plugin.XmdsVirtual attacker, InstanceUnit.BuffState state)
        {
            //注册监听.
            mHandleUUID = hitter.RegistOnHitDamage(OnHandleHitDmage, null);
            XmdsVirtual.FormatLog("BuffBegin : 单位【{0}】增加OnHandleHitDmage事件监听.", hitter.mProp.ServerData.BaseInfo.name);
        }

        protected override void OnBuffEnd(XmdsCommonServer.Plugin.XmdsVirtual hitter, InstanceUnit.BuffState state, bool replace)
        {
            //取消监听.
            hitter.UnRegistOnHitDamage(mHandleUUID);
            XmdsVirtual.FormatLog("BuffBegin : 单位【{0}】去除OnHandleHitDmage事件监听.", hitter.mProp.ServerData.BaseInfo.name);
        }

        private float OnHandleHitDmage(float damage, XmdsVirtual hitted, XmdsVirtual attacker, AttackSource source, 
            ref XmdsVirtual.AtkResult result, DamageType damageType, GameSkill skill, ref bool isEndDispatch)
        {
            if (OnHitDamageEvent != null)
            {
                OnHitDamageEvent.Invoke(damage, hitted, attacker, source, ref result, 
                    damageType, bindSkill, ref isEndDispatch);
            }

            return damage;
        }

        protected override void OnDispose()
        {
            //OnHitDamageEvent = null;

            base.OnDispose();
        }
    }
}