using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using Game;
using YooAsset;

namespace Mono
{
    // 
    public class ResourceComponent
    {
        private static ResourceComponent instance;

        public static ResourceComponent Instance
        {
            get
            {
                if (instance == null)
                {
                    instance = new ResourceComponent();
                }

                return instance;
            }
        }

        private bool isLoadFinish;
        private EPlayMode playMode;

        ResourceUpdatePackageHandle handle;
        ResourcePackage _defaultPackage;

        public ResourceComponent()
        {
            isLoadFinish = false;
            EventManager.Instance.Subscribe(UpdaterDoneEventArgs.EventId, UpdaterDoneEvent);
            YooAssets.Initialize();
        }

        private void UpdaterDoneEvent(object sender, GameEventArgs e)
        {
            var args = e as UpdaterDoneEventArgs;
            isLoadFinish = true;
        }


        public async UniTask InitLoadModeAsync(EPlayMode playMode, string packageName)
        {
            this.playMode = playMode;
            handle = new ResourceUpdatePackageHandle(playMode, packageName, EDefaultBuildPipeline.BuiltinBuildPipeline.ToString());
            await handle.InitPackageAsync();

            while (!this.isLoadFinish)
            {
                await UniTask.Yield();
            }

            _defaultPackage = YooAssets.GetPackage("DefaultPackage");
            YooAssets.SetDefaultPackage(_defaultPackage);
        }

        /// <summary>
        /// 主要用来加载dll config aotdll，因为这时候纤程还没创建，无法使用ResourcesLoaderComponent。
        /// 游戏中的资源应该使用ResourcesLoaderComponent来加载
        /// </summary>
        public async UniTask<T> LoadAssetAsync<T>(string location) where T : UnityEngine.Object
        {
            AssetHandle handle = YooAssets.LoadAssetAsync<T>(location);
            await handle.Task;
            T t = (T)handle.AssetObject;
            handle.Release();
            return t;
        }

        /// <summary>
        /// 主要用来加载dll config aotdll，因为这时候纤程还没创建，无法使用ResourcesLoaderComponent。
        /// 游戏中的资源应该使用ResourcesLoaderComponent来加载
        /// </summary>
        public async UniTask<Dictionary<string, T>> LoadAllAssetsAsync<T>(string location) where T : UnityEngine.Object
        {
            AllAssetsHandle allAssetsOperationHandle = YooAssets.LoadAllAssetsAsync<T>(location);
            await allAssetsOperationHandle.Task;
            Dictionary<string, T> dictionary = new Dictionary<string, T>();
            foreach (UnityEngine.Object assetObj in allAssetsOperationHandle.AllAssetObjects)
            {
                T t = assetObj as T;
                dictionary.Add(t.name, t);
            }

            allAssetsOperationHandle.Release();
            return dictionary;
        }
    }
}