using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using System;
using UnityEngine.U2D;
using LitJson;
using System.IO;
using UnityEngine.Networking;

#if UNITY_EDITOR
using UnityEditor;
#endif

using LaunchCommon;

public class ResManager : Singleton<ResManager>
{
    

    //不下载时本地安卓测试路径
    // public string assetBundlesPath = Application.dataPath + "/../AssetBundles/Android/";
    // public static string bytesFolderName = "logicbytes/";
    public string StreamingAssetPath
    {
        get
        {
            return ResourcesPath.Instance.StreamingAssetPath;
        }
    }
    public string ExternalStorePath 
    {
        get
        {
            return ResourcesPath.Instance.ExternalStorePath;
        }
    }

    //用于editor 下的资源路径
    public string ResourcesOutPath 
    {
        get
        {
            return ResourcesPath.ResourcesOutPath;
        }
    }

    public string CONFIG_FODLER
    {
        get
        {
            return ResourcesPath.CONFIG_FODLER;
        }
    }

    public string ResourcesOutAssetPath
    {
        get
        {
            return ResourcesPath.ResourcesOutAssetPath;
        }
    }
    


    public void Init()
    {

    }

    public void Release()
    {

    }
    
    private string GetExtension(Type type)
    {
        if (type == typeof(GameObject))
            return ".prefab";
        else if (type == typeof(Sprite))
            return ".png";
        else if (type == typeof(Texture2D))
            return ".png";
        else if (type == typeof(Shader))
            return ".shader";
        else if (type == typeof(TextAsset))
            return ".txt";
        else if (type == typeof(AudioClip))
            return ".wav";
        else if (type == typeof(Font))
            return ".ttf";
        else if (type == typeof(Material))
            return ".mat";
        else
        {
            Debug.LogErrorFormat("GetExtension() => 不支持的资源类型: {0}.", type.Name);
            return "";
        }
    }

    public T LoadAsset<T> (string directory, string name) where T : UnityEngine.Object
    {
        T asset = null;
#if UNITY_EDITOR
        var path = string.Concat($"Assets/ResourcesOut/{directory}/{name}", GetExtension(typeof(T)));
        asset = UnityEditor.AssetDatabase.LoadAssetAtPath<T>(path);
#else
        if (prefabBundle == null)
        {
            // string _path = GetAssetFilePath("builtin/prefabs");
            string _path = GetAssetFilePath($"builtin/{directory}");
            prefabBundle = AssetBundle.LoadFromFile(_path);
        }
        asset = prefabBundle.LoadAsset(name) as t;
#endif
        if (asset == null)
        {
            Debug.LogErrorFormat("LoadBuiltInPrefab() => 加载不到资源: {0}.", name);
        }

        return asset;
    }



    public void UnloadAsset(string assetBundleName)
    {
        
    }

    public string GetAssetFilePath(string _assetKey)
    {
        var path = Path.Combine(ExternalStorePath, _assetKey);
        if (!File.Exists(path))
        {
            path = Path.Combine(StreamingAssetPath, _assetKey);
        }

        return path;
    }


}