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

namespace XmdsCommonSkill.Plugin.Buffs
{
	//破甲
    public class XmdsBuff_SunderArmor : XmdsBuffBase
    {
        //被顶替的技能ID.
        public int ChangeValue;

		private int OverLayer = 0;
		private int mOpID = 0;

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

		public override void CopyTo(UnitBuff other)
		{
			var ret = other as XmdsBuff_SunderArmor;
			ret.ChangeValue = this.ChangeValue;
			ret.OverLayer = this.OverLayer;

			base.CopyTo(other);
		}

		protected override void OnBuffBegin(XmdsCommonServer.Plugin.XmdsVirtual hitter, XmdsCommonServer.Plugin.XmdsVirtual attacker, InstanceUnit.BuffState state)
        {
			OverLayer = state.OverlayLevel;

			XmdsVirtual.PropChangeOperation pco = hitter.CreatePropChangeOpertation(this);
			pco.Type = XmdsVirtual.UnitAttributeType.Defence;
			pco.Value = ChangeValue * state.OverlayLevel;
			pco.OpType = XmdsVirtual.PropChangeOperation.OperateType.Percent;
			mOpID = hitter.AddPropChangeOperation(pco);
		}

		protected override int OnBuffHit(XmdsVirtual hitter,
				XmdsVirtual attacker, CommonAI.Zone.Formula.AttackSource source,
				ref XmdsVirtual.AtkResult result)
		{
			XmdsVirtual.PropChangeOperation pco = hitter.CreatePropChangeOpertation(this);
			pco.Type = XmdsVirtual.UnitAttributeType.MoveSpeed;
			pco.Value = ChangeValue * OverLayer;
			pco.OpType = XmdsVirtual.PropChangeOperation.OperateType.Percent;

			//刷新数值
			hitter.UpdatePropChangeOperation(mOpID, pco);

			return base.OnBuffHit(hitter, attacker, source, ref result);
		}

		protected override void OnBuffEnd(XmdsCommonServer.Plugin.XmdsVirtual hitter, InstanceUnit.BuffState state, bool replace)
        {
			hitter.RemovePropChangeOperation(mOpID);

			base.BuffEnd(hitter, state, replace);
		}      
    }
}