using System;
using System.Collections;
using System.Collections.Generic;
using Spine.Unity;
using UnityEngine;
using Spine;
using UnityEngine.UI;

public class EffectPlayer : MonoBehaviour
{
    public int effectId;

    public EffectConfig effectConfig;

    public Action<EffectPlayer> onDestroy;

    public float speedRate = 1f;

    [HideInInspector] public Canvas canvas = null;

    [HideInInspector] public GameObject effectTarget = null;

    protected EffectPenetrationBlocker blocker = null;

    protected bool isInit = false;

    protected List<ParticleSystem> particleList = new List<ParticleSystem>();

    protected List<Animator> animatorList = new List<Animator>();

    protected List<Renderer> rendererList = new List<Renderer>();

    protected SkeletonGraphic spineComp;

    protected void Start()
    {
        ReStart();
    }

    protected void InitCompnent()
    {
        if (effectId <= 0)
        {
            effectConfig = null;
            Debug.LogError("EffectPlayer effectId is not set");
#if UNITY_EDITOR
            UnityEditor.Selection.activeGameObject = gameObject;
            UnityEditor.EditorGUIUtility.PingObject(gameObject);
#endif
            return;
        }

        effectConfig = EffectConfig.Get(effectId);

        if (null == effectConfig)
        {
            Debug.LogError("could not find effect config, effect id is " + effectId);
#if UNITY_EDITOR
            UnityEditor.Selection.activeGameObject = gameObject;
            UnityEditor.EditorGUIUtility.PingObject(gameObject);
#endif
            return;
        }


        particleList.Clear();
        animatorList.Clear();
        rendererList.Clear();
        spineComp = null;

        if (effectConfig.isSpine != 0)
        {
            spineComp = gameObject.GetComponentInChildren<SkeletonGraphic>(true);
        }
        else
        {
            //  收集组件
            particleList.AddRange(gameObject.GetComponentsInChildren<ParticleSystem>(true));
            animatorList.AddRange(gameObject.GetComponentsInChildren<Animator>(true));
        }
        rendererList.AddRange(gameObject.GetComponentsInChildren<Renderer>(true));
    }

    public void Stop()
    {
        if (null != effectTarget)
        {
            DestroyImmediate(effectTarget);
            effectTarget = null;
        }

        isInit = false;

        particleList.Clear();
        animatorList.Clear();
        rendererList.Clear();
        spineComp = null;
    }

    public void Play()
    {
        ReStart();
    }


    protected void ReStart()
    {
        if (!isInit)
        {
            isInit = true;
            InitCompnent();
        }

        if (EffectMgr.Instance.IsNotShowBySetting(effectId))
        {
            return;
        }

        if (null != effectTarget)
        {
            DestroyImmediate(effectTarget);
            effectTarget = null;
        }

        //	YYL TODO
        //	在这里考虑用池的话可能走配置好一点 原本的是无论如何都走池 但是实际上有些特效并不需要

        // 加载特效资源
        var effectPrefab = ResManager.Instance.LoadAsset<GameObject>("UIEffect/" + effectConfig.packageName, effectConfig.fxName);
        if (effectPrefab == null)
        {
            Debug.LogError($"加载UI特效失败: {effectConfig.packageName}");
            return;
        }

        // 实例化特效
        effectTarget = Instantiate(effectPrefab, transform);
        effectTarget.name = $"Effect_{effectConfig.fxName}";

        //  思考一下在没有挂在节点的时候
        if (null == canvas)
            canvas = GetComponentInParent<Canvas>();


        // 添加特效穿透阻挡器
        blocker = effectTarget.AddMissingComponent<EffectPenetrationBlocker>();

        //  如果没有canvas的话 正常是因为不在BattleWin下面的节点 意思就是当前没有显示 等到切回战斗的时候再通过BattleField.UpdateCanvas来更新
        if (canvas != null)
        {
            blocker.SetParentCanvas(canvas);
        }

        // 自动销毁
        if (effectConfig.autoDestroy != 0)
        {
            Destroy(effectTarget, effectConfig.destroyDelay);
        }
    }


    protected void OnDestroy()
    {
        if (onDestroy != null)
        {
            onDestroy.Invoke(this);
            onDestroy = null;
        }
    }

    //  创建后的特效会自动隐藏 需要手动调用Play才能播放
    public static EffectPlayer Create(int effectId, Transform parent, bool createNewChild = false)
    {
        EffectPlayer effectPlayer = null;

        if (createNewChild)
        {
            GameObject newGo = new GameObject("EffectPlayer_" + effectId);
            newGo.transform.SetParent(parent, false);
            effectPlayer = newGo.AddComponent<EffectPlayer>();
        }
        else
        {
            effectPlayer = parent.AddMissingComponent<EffectPlayer>();
            effectPlayer.effectId = effectId;
        }
        effectPlayer.SetActive(true);
        return effectPlayer;
    }

    public void Pause()
    {
        if (effectTarget == null) return;

        // Spine动画
        // var spineGraphics = effectTarget.GetComponentsInChildren<SkeletonGraphic>(true);
        // foreach (var sg in spineGraphics)
        if (spineComp != null)
        {
            spineComp.timeScale = 0f;
        }

        // Animator动画
        foreach (var animator in animatorList)
        {
            animator.speed = 0f;
        }

        // 粒子特效
        foreach (var ps in particleList)
        {
            ps.Pause();
        }
    }

    public void Resume()
    {
        if (effectTarget == null) return;

        if (spineComp != null)
        {
            spineComp.timeScale = speedRate;
        }

        // Animator动画
        foreach (var animator in animatorList)
        {
            animator.speed = speedRate;
        }

        // 粒子特效
        foreach (var ps in particleList)
        {
            ps.Play();
        }
    }

    public bool IsFinish()
    {
        if (effectTarget == null) return true;

        // Spine动画
        if (!spineComp.AnimationState.GetCurrent(0).IsComplete)
        {
            return false;
        }

        // Animator动画
        foreach (var animator in animatorList)
        {
            AnimatorStateInfo stateInfo = animator.GetCurrentAnimatorStateInfo(0);

            //  循环动画不考虑结束的问题
            if (!stateInfo.loop && stateInfo.normalizedTime < 1f)
            {
                return false;
            }
        }

        // 粒子特效
        foreach (var ps in particleList)
        {
            if (ps.IsAlive())
            {
                return false;
            }
        }

        return true;
    }

    /// <summary>
    /// 设置遮罩（支持RectMask2D、Mask、SmoothMask等）
    /// </summary>
    public void SetMask(RectTransform maskArea = null)
    {
        if (effectTarget == null || blocker == null)
            return;

        // 优先使用传入的maskArea
        if (maskArea != null)
        {
            blocker.PerformMask(maskArea);
            return;
        }
    }
}