using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using DG.Tweening;
using UnityEngine;
using UnityEngine.UI;
using YooAsset;

namespace Stary.Evo.UIFarme
{
    public interface IBaseRenderPanel : IController
    {
        /// <summary>
        /// UI信息
        /// </summary>
        string UIName { get; set; }

        BaseRenderPanel.UITweenType TweenType { get; set; }
        /// <summary>
        /// 绑定这个面板的实例
        /// </summary>
        void Initialize(GameObject panelGo);

        /// <summary>
        /// 绑定这个面板的实例
        /// </summary>
        Task InitializeAsync(GameObject panelGo);

        /// <summary>
        /// 初始化面板管理器
        /// </summary>
        /// <param name="panelManager"></param>
        void Initialize(ISpriteRenderSystem sysytem);

        /// <summary>
        /// 初始化面板管理器
        /// </summary>
        /// <param name="panelManager"></param>
        Task InitializeAsync(ISpriteRenderSystem sysytem);

        /// <summary>
        /// 虚方法，UI进入时执行的操作，只会执行一次
        /// </summary>
        void OnEnter(Action complete = null);


        /// <summary>
        /// 虚方法，UI退出时执行的操作，只会执行一次
        /// </summary>
        void OnExit(float delay = 0f);

        void OnDestroy();


        /// <summary>
        /// 生成/获取一个UI对象
        /// </summary>
        /// <param name="type">ui信息</param>
        /// <returns></returns>
        Task<GameObject> CreatePanel(string packageName, string panelName);

        /// <summary>
        /// 销毁一个Ui对象
        /// </summary>
        /// <param name="type"></param>
        void DestoryUI();

        void SetPanelParent(Transform parent);
    }

    /// <summary>
    ///所有UI面板的父类，包含UI面板的状态信息
    /// </summary>
    public  class BaseRenderPanel : IBaseRenderPanel
    {
        /// <summary>
        /// UI信息
        /// </summary>
        public virtual string UIName { get; set; }

        public UITweenType TweenType { get; set; }


        /// <summary>
        /// 面板管理器
        /// </summary>
        protected ISpriteRenderSystem PanelSystem { get; private set; }

        /// <summary>
        /// 生成的父物体
        /// </summary>
        protected Transform panelParent { get; private set; }


        /// <summary>
        /// 缓存该面板所有的SpriteRenderer
        /// </summary>
        private Dictionary<string, SpriteRenderer> spriteRendererDict;


        protected GameObject activePanel { get; private set; }


        public virtual void Initialize(GameObject panelGo)
        {
            activePanel = panelGo;
            spriteRendererDict = new Dictionary<string, SpriteRenderer>();
            SpriteRenderer[] spriteRenderers = activePanel.GetComponentsInChildren<SpriteRenderer>(true);
            foreach (SpriteRenderer item in spriteRenderers)
            {
                spriteRendererDict.Add(item.name,item);
            }
        }

        public virtual Task InitializeAsync(GameObject panelGo)
        {
            Initialize(panelGo);
            return Task.CompletedTask;
        }

        public virtual void Initialize(ISpriteRenderSystem sysytem)
        {
            PanelSystem = sysytem;
        }

        public virtual Task InitializeAsync(ISpriteRenderSystem sysytem)
        {
            Initialize(sysytem);
            return Task.CompletedTask;
        }


        public virtual void OnEnter(Action complete = null)
        {
            activePanel.SetActive(true);


            SetCanvasGroupTween(1f, complete);
        }


        public virtual void OnExit(float delay = 0f)
        {
            SetCanvasGroupTween(0f, () => { activePanel.SetActive(false); });
        }

        public virtual void OnDestroy()
        {
            DestoryUI();
        }


        public async Task<GameObject> CreatePanel(string packageName, string panelName)
        {
            if (panelParent == null)
            {
                Debug.LogWarning($"UnityEvo:parent为空,{panelName}自动设置为root节点下，请检查是否正确！！！！！");
            }

            if (this.activePanel != null)
            {
                return activePanel.gameObject;
            }
           AssetHandle handle = null;
            if (packageName == null)
            {
                handle = YooAssets.LoadAssetAsync<GameObject>(panelName);
            }
            else
            {
                var package = YooAssets.TryGetPackage(packageName);
                if (package == null)
                {
                    handle = YooAssets.LoadAssetAsync<GameObject>(panelName);
                }
                else
                {
                    handle = package.LoadAssetAsync<GameObject>(panelName);
                }
            }

            await handle.Task;

            activePanel = GameObject.Instantiate(handle.AssetObject as GameObject, panelParent);

            activePanel.name = panelName;

            return activePanel;
        }

        public void DestoryUI()
        {
            if (activePanel != null)
            {
                GameObject.Destroy(activePanel);
                PanelSystem.Get_Dic().Remove(this.GetType().Name);
            }
        }

        public void SetPanelParent(Transform parent)
        {
            panelParent = parent;
        }

        private void SetCanvasGroup(float alpha)
        {
            foreach (var spriteRenderer in spriteRendererDict)
            {
                Color c = spriteRenderer.Value.color;
                c.a = alpha;
                spriteRenderer.Value.color = c;
            }
        }

        private void SetCanvasGroupTween(float alpha, Action complete = null)
        {

                // 创建一个新的序列
                Sequence sequence = DOTween.Sequence();


                foreach (var spriteRenderer in spriteRendererDict)
                {
                    if (TweenType == UITweenType.None)
                    {
                        Color c = spriteRenderer.Value.color;
                        c.a = alpha;
                        spriteRenderer.Value.color = c;
                    }
                    else if (TweenType == UITweenType.Fade)
                    {
                        sequence.Join(spriteRenderer.Value.DOFade(alpha, 1f));
                    }
                    // else if (TweenType == UITweenType.Yoyo)
                    // {
                    //     sequence.Join(spriteRenderer.Value.DOFade(alpha, 1f)
                    //         .SetLoops(-1, LoopType.Yoyo));
                    // }
                }

                if (TweenType == UITweenType.None)
                {
                    complete?.Invoke();
                }
                else
                {
                    sequence.OnComplete(() => complete?.Invoke());
                    sequence.Play();
                }

        }

        public IArchitecture GetArchitecture()
        {
            return PanelSystem.GetArchitecture();
        }

    public enum UITweenType
    {
        /// <summary>
        /// 无动画
        /// </summary>
        None,

        /// <summary>
        /// 淡入淡出
        /// </summary>
        Fade,
    }
     }
}