using asap.core;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AddressableAssets;
using UnityEngine.U2D;
using UnityEngine.UI;
using UniRx;
using System.Threading.Tasks;
using game;
using UnityEngine.ResourceManagement.AsyncOperations;

public class GetSpriteEvent
{
    public string spriteName;
    public string panelName;
    public Sprite sprite;
    public GetSpriteEvent()
    {

    }
    public GetSpriteEvent(string spriteName, string panelName = "")
    {
        this.spriteName = spriteName;
        this.panelName = panelName;
    }
}

public interface IShowImageData
{
    public string spriteName { set; get; }

    public Image image { set; get; }

    public void SetImage(Sprite sprite);
}

public interface IUIService
{
    Task LoadAtlas();
    Task SetImageSprite(Image image, string spriteName, string panelName = "");
    /// <summary>
    /// 同一个 image 组件 重复赋值，使用此方法
    /// </summary>
    /// <param name="imageData"></param>
    /// <param name="panelName"></param>
    /// <returns></returns>
    Task SetImageSprite(IShowImageData imageData, string panelName = "");
    void ReleaseSpriteDic(string dicName);
    Task SetHeadImage(Image image, string spriteName);
    Sprite GetSprite(string spriteName, string panelName = "");
}
public class AtlasReference
{
    public AsyncOperationHandle<SpriteAtlas> handle;
    public SpriteAtlas spriteAtlas;
    public int referenceCount;
}
public class UIService : IUIService
{
    private Dictionary<string, Dictionary<string, Sprite>> _spriteDict = new Dictionary<string, Dictionary<string, Sprite>>();
    Dictionary<string, AtlasReference> atlasReference = new Dictionary<string, AtlasReference>();
    SpriteAtlas atlasDic;
    string preloadAtlasName = "UIResAtlas";
    string defaultAvatar;
    public async Task LoadAtlas()
    {
        cfg.Tables table = GContext.container.Resolve<cfg.Tables>();

        var tbAvatar = table.TbUserAvatar.GetOrDefault(table.TbGlobalConfig.InitAvatar);
        if (tbAvatar != null)
        {
            defaultAvatar = tbAvatar.Avatar;
        }
        else
        {
            defaultAvatar = table.TbUserAvatar.DataMap[0].Avatar;
        }

        if (atlasDic != null)
        {
            Addressables.Release(atlasDic);
        }
        var atlas = await Addressables.LoadAssetAsync<SpriteAtlas>(preloadAtlasName).Task;
        if (atlas != null)
        {
            atlasDic = atlas;
        }
        GContext.OnEvent<GetSpriteEvent>().Subscribe(OnGetSprite);
        GetAvatarDataEvent getAvatarDataEvent = new GetAvatarDataEvent();
        getAvatarDataEvent.url = GContext.container.Resolve<IUserService>().AvatarUrl;
        GContext.Publish(getAvatarDataEvent);
    }
    /// <summary>
    /// 设置头像 存在网图
    /// </summary>
    /// <param name="icon_head">Image 组件</param>
    /// <param name="url">头像网址 或者本地名称</param>
    public async Task SetHeadImage(Image icon_head, string url)
    {
        if (icon_head == null)
        {
            Debug.LogError("SetHeadImage icon_head null");
            return;
        }
        if (string.IsNullOrEmpty(url))
        {
            url = defaultAvatar;
        }
        if (icon_head != null && url.Contains("http"))
        {
            icon_head.sprite = GetSprite(defaultAvatar);
        }

        GetAvatarDataEvent getAvatarDataEvent = new GetAvatarDataEvent();
        getAvatarDataEvent.url = url;
        GContext.Publish(getAvatarDataEvent);
        var sprite = await getAvatarDataEvent.taskCompletionSource.Task;
        if (icon_head != null && sprite != null)
        {
            icon_head.sprite = sprite;
        }
    }
    void OnGetSprite(GetSpriteEvent getSpriteEvent)
    {
        if (!string.IsNullOrEmpty(getSpriteEvent.spriteName))
        {
            getSpriteEvent.sprite = GetSprite(getSpriteEvent.spriteName, getSpriteEvent.panelName);
        }
    }

    public void ReleaseSpriteDic(string dicName)
    {
        if (string.IsNullOrEmpty(dicName) || !_spriteDict.TryGetValue(dicName, out var value))
        {
            return;
        }
        foreach (var item in value)
        {
            string[] spriteNames = item.Key.Split('_');
            if (spriteNames.Length > 1 && spriteNames[0] == "separate")
            {
                Addressables.Release(item.Value);
            }
            else if (spriteNames.Length > 2 && spriteNames[0] == "atlas")
            {
                if (atlasReference.TryGetValue(spriteNames[1], out var AR))
                {
                    AR.referenceCount--;
                    if (AR.referenceCount == 0)
                    {
                        AR.spriteAtlas = null;
                        Addressables.Release(AR.handle);
                        atlasReference.Remove(spriteNames[1]);
                    }
                }
            }
        }
        value.Clear();
        _spriteDict.Remove(dicName);
    }

    public async Task SetImageSprite(Image image, string spriteName, string panelName = "")
    {
        if (image == null)
        {
            Debug.LogError($"image null spriteName {spriteName}");
            return;
        }
        ShowImageData imageData = new ShowImageData(image, spriteName);
        await SetImageSprite(imageData, panelName);
    }
    public async Task SetImageSprite(IShowImageData imageData, string panelName = "")
    {
        if (imageData == null || imageData.image == null)
        {
            Debug.LogError($"image null spriteName {imageData?.spriteName}");
            return;
        }
        if (string.IsNullOrEmpty(panelName))
        {
            panelName = BasePanel.PanelName;
        }
        if (!string.IsNullOrEmpty(imageData.spriteName))
        {
            try
            {
                await SetSprite(imageData, panelName);
            }
            catch (System.Exception e)
            {
                Debug.LogError($"SetImageSprite error: {e.Message}");
            }
        }
    }
    /// <summary>
    /// 获取默认图集里面的图片
    /// </summary>
    /// <param name="spriteName"></param>
    /// <param name="panelName"></param>
    /// <returns></returns>
    public Sprite GetSprite(string spriteName, string panelName = "")
    {
        if (string.IsNullOrEmpty(panelName))
        {
            panelName = BasePanel.PanelName;
        }
        Sprite value;
        if (_spriteDict.TryGetValue(panelName, out var sprites))
        {
            if (sprites.TryGetValue(spriteName, out value))
            {
                return value;
            }
        }
        else
        {
            sprites = new Dictionary<string, Sprite>();
            _spriteDict.Add(panelName, sprites);
        }

        value = atlasDic?.GetSprite(spriteName);
        if (value != null)
        {
            sprites[spriteName] = value;
            return value;
        }
        GameDebug.LogWarning("spriteName===>" + spriteName + "  panelName===>" + panelName);
        return null;
    }
    async Task SetSprite(IShowImageData imageData, string panelName)
    {
        string spriteName = imageData.spriteName;
        string[] spriteNames = spriteName.Split('_');
        if (spriteNames.Length > 1 && spriteNames[0] == "separate" && spriteNames[1] == "icon")
        {
            panelName = "icon";
        }
        if (string.IsNullOrEmpty(panelName))
        {
            panelName = "HomePanel";
        }
        Sprite value;
        if (_spriteDict.TryGetValue(panelName, out var sprites))
        {
            if (sprites.TryGetValue(spriteName, out value))
            {
                imageData.SetImage(value);
                return;
            }
        }
        else
        {
            sprites = new Dictionary<string, Sprite>();
            _spriteDict.Add(panelName, sprites);
        }


        if (spriteNames.Length > 1 && spriteNames[0] == "separate")
        {
            await LoadSprite(imageData, sprites);
            return;
        }
        else if (spriteNames.Length > 2 && spriteNames[0] == "atlas")
        {
            LoadSpriteAtlas(imageData, spriteNames[1], sprites);
            return;
        }
        else
        {
            value = atlasDic?.GetSprite(spriteName);
            if (value != null)
            {
                sprites[spriteName] = value;
                imageData.SetImage(value);
                return;
            }
            Debug.LogWarning("spriteName===>" + spriteName + "  panelName===>" + panelName);
        }
    }
    async Task LoadSprite(IShowImageData imageData, Dictionary<string, Sprite> sprites)
    {
        string spriteName = imageData.spriteName;
        var sprite = await Addressables.LoadAssetAsync<Sprite>(spriteName).Task;
        if (sprite != null)
        {
            sprites[spriteName] = sprite;

            imageData.SetImage(sprite);
        }
        else
        {
            Debug.LogWarning("spriteName===>" + spriteName);
        }
    }
    void LoadSpriteAtlas(IShowImageData imageData, string sName, Dictionary<string, Sprite> sprites)
    {
        if (!atlasReference.TryGetValue(sName, out var AR))
        {
            AR = new AtlasReference();
            atlasReference.Add(sName, AR);
            AR.handle = Addressables.LoadAssetAsync<SpriteAtlas>("UIResAtlas_" + sName);
            AR.handle.Completed += (handle) =>
            {
                if (handle.Status == AsyncOperationStatus.Succeeded)
                {
                    if (AR.spriteAtlas == null)
                    {
                        AR.spriteAtlas = handle.Result;
                    }
                    SetSpriteSpriteName(imageData, AR, sprites);
                }
                else
                {
                    Debug.LogError("ReleaseAtlas Load Failed ===>" + sName);
                    Addressables.Release(AR.handle);
                    atlasReference.Remove(sName);
                }
            };
        }
        else
        {
            if (AR.spriteAtlas != null)
            {
                SetSpriteSpriteName(imageData, AR, sprites);
            }
            else
            {
                AR.handle.Completed += (handle) =>
                {
                    if (handle.Status == AsyncOperationStatus.Succeeded)
                    {
                        if (AR.spriteAtlas == null)
                        {
                            AR.spriteAtlas = handle.Result;
                        }
                        SetSpriteSpriteName(imageData, AR, sprites);
                    }
                    else
                    {
                        Debug.LogError("ReleaseAtlas Completed Failed ===>" + sName);

                    }
                };
            }
        }
    }
    void SetSpriteSpriteName(IShowImageData imageData, AtlasReference AR, Dictionary<string, Sprite> sprites)
    {
        string spriteName = imageData.spriteName;
        if (imageData.image != null)
        {
            if (!sprites.ContainsKey(spriteName))
            {
                var value = AR.spriteAtlas.GetSprite(spriteName);
                if (value != null)
                {
                    sprites[spriteName] = value;
                    AR.referenceCount++;

                    imageData.SetImage(sprites[spriteName]);
                }
                else
                {
                    Debug.LogWarning("spriteName===>" + spriteName + "  spriteAtlas===>" + AR.spriteAtlas.name);
                }
            }
            else
            {
                imageData.SetImage(sprites[spriteName]);
            }
        }
    }
}