using System;
using CoreGame;
using GAS.Runtime;

namespace CoreGame.Render
{
    /// <summary>
    /// 护盾组件
    /// </summary>
    [Serializable]
    public class GEComponent_HpShield : GameplayEffectComponent
    {
        public void OnWillChangeHp(object self, int eventId, object arg1)
        {
            var partSelf = (GameplayEffectComponentSpec)self;
            var hurtData = (HurtData)arg1;
            if ((hurtData.hurtRet & HurtRet.Miss) == HurtRet.Miss)
                return;
            
            if (hurtData.hpShieldAcc >= 0)
                return;

            var geSpec = partSelf.GESpec;
            var hangMagnitude = (long)(geSpec.hangMagnitude + hurtData.hpShieldAcc);
            geSpec.hangMagnitude = hangMagnitude;
            if (hangMagnitude <= 0)
            {
                hurtData.hpShieldAcc = (long)geSpec.hangMagnitude;
                geSpec.hangMagnitude = 0;// ???
                hurtData.hurtRet |= HurtRet.ShieldBreak;
                // 清除护盾
                geSpec.RemoveSelf();

                var entity = geSpec.Owner.owner;
                if (entity.hasRefreshableHpShield)
                {
                    entity.AddReload(entity.refreshableHpShield.refreshInterval);
                }
            }
            else
            {
                hurtData.hpShieldAcc = 0;
            }
        }
        public override void OnGameplayEffectApplied(GameplayEffectComponentSpec partSelf, GameplayEffectSpec GESpec)
        {
            var triggerSpec = SptPool<TriggerSpec>.Malloc();
            triggerSpec.Awake(null, GESpec);
            partSelf.triggerSpec = triggerSpec;
            triggerSpec.callbackWrapper = CallbackWrapper.New(OnWillChangeHp, partSelf);
            triggerSpec.owner.AddEventCallBack(ClientEvent.OnReduceHpShield, triggerSpec.callbackWrapper);
        }

        public override void OnGameplayEffectDisApplied(GameplayEffectComponentSpec partSelf, GameplayEffectSpec GESpec)
        {
            partSelf.triggerSpec.owner.RemoveCallback(ClientEvent.OnReduceHpShield, ref partSelf.triggerSpec.callbackWrapper);
            SptPool<TriggerSpec>.Free(ref partSelf.triggerSpec);
        }
    }
}