using Cysharp.Threading.Tasks;
using System.Collections.Generic;
using System.Threading.Tasks;
using UnityEngine;
using UnityEngine.SceneManagement;
using YooAsset;

public class YooAssetManager : MonoBehaviour
{
    public static YooAssetManager Instance { get; private set; }
    /// <summary> 资源包 </summary>
    public ResourcePackage package;
    /// <summary> Asset句柄 </summary>
    public Dictionary<string, AssetHandle> handles = new Dictionary<string, AssetHandle>();
    /// <summary> AllAsset句柄 </summary>
    public Dictionary<string,AllAssetsHandle>allHandles=new Dictionary<string,AllAssetsHandle>();
    /// <summary> SceneAsset句柄 </summary>
    public Dictionary<string, SceneHandle> sceneHandles = new Dictionary<string, SceneHandle>();

    private void Awake()
    {
        Instance = this;
        package = YooAssets.GetPackage("DefaultPackage");
        //await this.gameObject.AddComponent<Boot>().InitYooAsset();
        //package = YooAssets.GetPackage("DefaultPackage");
        //var ui = await LoadAsset<GameObject>("DlgFaceBuildUI");
        //var go =GameObject.Instantiate(ui);
        //go.transform.SetParent(GameObject.Find("Canvas").transform);
        //go.transform.localPosition = Vector3.zero;
    }

    /// <summary>
    /// 加载资源
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="location"></param>
    /// <returns></returns>
    public async UniTask<T> LoadAsset<T>(string location) where T : Object
    {
        AssetHandle handler;
        if (!handles.TryGetValue(location,out handler))
        {
            handler = package.LoadAssetAsync<T>(location);
            await handler.Task;
            handles.Add(location, handler);
        }
        return (T)((AssetHandle)handler).AssetObject;
    }

    /// <summary>
    /// 加载所有资源
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="location"></param>
    /// <returns></returns>
    public async UniTask<Dictionary<string, T>> LoadAllAsset<T>(string location) where T : Object
    {
        AllAssetsHandle handler;
        if (!allHandles.TryGetValue(location, out handler))
        {
            handler = package.LoadAllAssetsAsync<T>(location);
            await handler.Task;
            allHandles.Add(location, handler);
        }
        Dictionary<string, T> dictionary = new Dictionary<string, T>();
        foreach (UnityEngine.Object assetObj in ((AllAssetsHandle)handler).AllAssetObjects)
        {
            T t = assetObj as T;
            dictionary.Add(t.name, t);
        }
        return dictionary;
    }

    /// <summary>
    /// 加载场景
    /// </summary>
    /// <param name="location"></param>
    /// <returns></returns>
    public async UniTask LoadScene(string location)
    {
        if (handles.ContainsKey(location))
            return;
        bool activeOnLoad = true;
        SceneHandle handle = package.LoadSceneAsync(location, LoadSceneMode.Additive, activeOnLoad);
        ScenesManager.Instance.handle = handle;
        sceneHandles.Add(location, handle);
        await handle.Task;
    }

    public async UniTask ActivateScene(SceneHandle handle)
    {
        if (handle.Progress >= 0.9)
        {
            handle.ActivateScene();
            await handle.Task;
        }
    }



}