using System.Text;
using Gameplay.Common;
using Gameplay.Effect;
using Gameplay.Pool;

namespace Gameplay.Buff
{
    using cfg.BuffCfg;

    public class BaseBuff: IPoolData
    {

        /// <summary>
        /// buff被挂载的对象
        /// </summary>
        public GameUnit owner;

        /// <summary>
        /// buff的创建者
        /// </summary>
        public GameUnit creator { get; private set; }

        public EBuffType buffType
        {
            get
            {
                return configData.BuffType;
            }
        }

        private bool _needRemove;
        public bool needRemove
        {
            get
            {
                switch (configData.ExistType)
                {
                    case EExistType.Once:
                        return true;
                    case EExistType.During:
                        return runtimeData.passTime >= configData.MaxExistTime;
                    case EExistType.Allways:
                        return false;
                    case EExistType.AfterReload:
                        return _needRemove;
                    default:
                        DebugUtil.LogError("暂未处理的buff existType:{0}",configData.ExistType);
                        return true;
                }
            }
        }

        public DataBuff configData;
        public BuffRuntimeData runtimeData;

        private float _remainTriggerTime;

        private EffectPlayingData _existEffectData;

        public virtual void Ctor(GameUnit creator,
            DataBuff configData)
        {
            this.creator = creator;
            this.configData = configData;
            if (runtimeData == null)
            {
                runtimeData = new BuffRuntimeData();
            }
            else
            {
                runtimeData.Reset();
            }
            if (configData.TriggerType == ETriggerType.ON_LOOP)
            {
                _remainTriggerTime = configData.TiggerUnitTime;
            }
        }
        
        public void Init()
        {
            _OnInit();
        }

        protected virtual void _OnInit()
        {

        }

        protected virtual void _OnTrigger()
        {

        }

        public void TriggerAdd()
        {
            _OnAdd();
            if (configData.TriggerType == ETriggerType.ON_ADD)
            {
                _OnTrigger();
            }

            if (configData.ExistType == EExistType.During ||
                configData.ExistType == EExistType.Allways)
            {
                if (configData.ExistEffectId != 0)
                {
                    var ownerTrans = owner.Node.transform;
                    _existEffectData = EffectManager.instance.PlayEffectById(configData.ExistEffectId,
                        ownerTrans.position, ownerTrans.rotation, ownerTrans);
                    _existEffectData.autoDestroy = false;
                }
            }
        }

        protected virtual void _OnAdd()
        {

        }

        protected virtual void _OnRemove()
        {

        }


        public void TriggerRemove()
        {
            _OnRemove();
            if (configData.TriggerType == ETriggerType.ON_REMOVE)
            {
                _OnTrigger();
            }

            if (_existEffectData != null)
            {
                EffectManager.instance.ReturnEffect(_existEffectData);
                _existEffectData = null;
            }
        }

        public void LogicUpdate(float dt)
        {
            runtimeData.passTime += dt;
            
            if (configData.TriggerType == ETriggerType.ON_LOOP)
            {
                _remainTriggerTime -= dt;
                if (_remainTriggerTime <= 0)
                {
                    _OnTrigger();
                    _remainTriggerTime += configData.TiggerUnitTime;
                }
            }
            
            _OnLogicUpdate(dt);
        }

        public void TriggerOnReload()
        {
            if (configData.TriggerType == ETriggerType.ON_RELOAD)
            {
                _OnTrigger();
            }
            if (configData.ExistType == EExistType.AfterReload)
            {
                _needRemove = true;
            }
            _OnReload();
        }

        protected virtual void _OnReload()
        {
            
        }

        protected virtual void _OnLogicUpdate(float dt)
        {

        }

        public override string ToString()
        {
            var sb = new StringBuilder();
            sb.AppendLine("ID:" + configData.ID);
            sb.AppendLine("Name:" + configData.Name);
            return sb.ToString();
        }

        public void OnGet()
        {
        }
        public void OnReturn()
        {
            _needRemove = false;
        }
        
        protected float _TryGetFloatParam(int index)
        {
            if (configData.FloatParams.Count > index)
            {
                return configData.FloatParams[index];
            }
            return 0;
        }
    }
}