using CommonAI.Data;
using CommonAI.Zone.Formula;
using CommonAI.Zone.Instance;
using CommonLang;
using System;
using XmdsCommon.Plugin;
using XmdsCommonServer.Plugin;
using XmdsCommonServer.Plugin.XmdsSkillTemplate.DamageCalculator;
using XmdsCommonServer.Plugin.XmdsSkillTemplate.Skills;

namespace XmdsCommonSkill.Plugin.Buffs
{
    public class XmdsBuff_Shield_IronMaiden : XmdsBuffBase
    {
        /// <summary>
        /// 反弹伤害百分比.
        /// </summary>
        public int IronMaidenPercent = 0;

        private int mHandleUUID = 0;

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


		public override void CopyTo(UnitBuff other)
		{
			var ret = other as XmdsBuff_Shield_IronMaiden;
			ret.IronMaidenPercent = this.IronMaidenPercent;

			base.CopyTo(other);
		}

		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}】增加反弹伤害.", 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}】失去反弹伤害.", hitter.mProp.ServerData.BaseInfo.name);
        }

        //单位被攻击时.反弹伤害计算.
        private float OnHandleHitDmage(float damage, XmdsVirtual hitted, XmdsVirtual attacker, AttackSource source, 
            ref XmdsVirtual.AtkResult result, DamageType damageType, GameSkill skill, ref bool isEndDispatch)
        {
			int reboundDamage = Math.Max(1, CUtils.CastInt(IronMaidenPercent * XmdsUnitProp.PER * damage));
			
			//反伤.
			if (reboundDamage > 0)
			{
				//根据属性计算反伤伤害.
				//d = XmdsDamageCalculator.GetDamage(d, hitted, attacker, source);
				//造成伤害并飘字.
				attacker.mUnit.AddHP(-reboundDamage, hitted.mUnit);
			}

			return damage - reboundDamage;
        }

    }
}