using System;
using Gameplay.Level;
using Gameplay.Pause;
using Gameplay.Pool;
using Gameplay.Unit;
using PhxhSDK;

namespace Gameplay.Effect
{
    using Framework;
    using UnityEngine;
    using Gameplay.Skill;

    public class EffectPlayingData
    {

        /// <summary>
        /// pauser信息直接放这里
        /// </summary>
        public DataEffectPauser pauserData;

        public GameUnit owner;

        public GameObject rootObj;
        
        public Action onLoaded;

        public Transform transform
        {
            get
            {
                if (rootObj == null)
                {
                    return null;
                }
                return rootObj.transform;
            }
        }

        public float remainTime;

        public bool autoDestroy = false;

        public EEffectState state = EEffectState.Error;

        public bool needReturn
        {
            get
            {
                return (autoDestroy && remainTime <= 0) || state == EEffectState.Destroied || state == EEffectState.Returned;
            }
        }

        private BaseEffectLogic _logic;

        public readonly int effectId;

        public EffectPlayingData(int effectId)
        {
            this.effectId = effectId;
        }

        public async void Load(string prefabPath)
        {
            if (state != EEffectState.Error) return;

            state = EEffectState.Loading;

            if (SROptions.Current != null)
            {
                if (!SROptions.Current.EnableEffect)
                {
                    state = EEffectState.Destroied;
                    return;
                }
            }


            var sampleObj = await AssetManager.Instance.LoadAssetAsync<GameObject>(prefabPath);
            if (sampleObj == null)
            {
                DebugUtil.LogError("特效不存在:{0}", prefabPath);
                return;
            }

            if (rootObj == null)
            {
                // 说明已经被销毁了
                return;
            }

            var obj = await AssetManager.Instance.InstanceAsync<GameObject>(prefabPath);

            if (rootObj == null)
            {
                // 说明已经被销毁了
                obj.Destroy();
                return;
            }


            obj.transform.SetParent(rootObj.transform);
            obj.transform.ResetLocals();
            state = EEffectState.Playing;

            rootObj.SetLayerEx(rootObj.layer);
            
            if (onLoaded != null)
            {
                onLoaded();
            }

            EventManager.Instance.Send(EventManager.EventName.EFFECT_INST_FINISHED, this);
        }
        
        public void AddLogic(BaseEffectLogic logic)
        {
            if (_logic != null)
            {
                ObjPoolManager.instance.Return(logic);
            }
            _logic = logic;
            _logic.effect = this;
        }

        public void LogicUpdate(float dt)
        {
            if (LevelManager.Instance.CurrentLevel?.isInBattle ?? false)
            {
                if (SkillManager.instance != null)
                {
                    if (SkillManager.instance.inSkillingUnit != owner)
                    {
                        dt *= SkillManager.instance.needSkillPaused ? 0 : 1;
                    }
                }
            }

            if (autoDestroy)
            {
                remainTime -= dt;
            }

            if (_logic != null)
            {
                _logic.LogicUpdate(dt);
            }
        }

        public void Destroy()
        {
            if (state == EEffectState.Returned
                || state == EEffectState.Destroied) return;
            state = EEffectState.Returned;
            EventManager.Instance.Send(EventManager.EventName.EFFECT_INST_RETURN, this);
            if (_logic != null)
            {
                ObjPoolManager.instance.Return(_logic);
                _logic = null;
            }
            EffectManager.instance.ReturnEffect(this);
        }

        public void RealDestroy()
        {
            state = EEffectState.Destroied;
            if (rootObj != null)
            {
                rootObj.Destroy();
                rootObj = null;
            }
        }

        public void SetActive(bool active)
        {
            if (rootObj == null) return;
            rootObj.SetActive(active);
        }

    }
}