using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;

public class LoadAssetBundle : MonoSingleton<LoadAssetBundle>
{

    private AssetBundleCreateRequest acr;
    // Start is called before the first frame update
    void Start()
    {
        StartCoroutine(DownLoadAssetBundle());

        
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    IEnumerator DownLoadAssetBundle()
    {
        string artUrl = "https://wx-model-1317557471.cos.ap-shanghai.myqcloud.com/HotUpdateLangChao/langchaostart";
        yield return DownLoadAssets(artUrl, "HotUpdateAssets", false);
    }

    public IEnumerator DownLoadAssets(string dllPath, string name, bool isRemote = true)
    {
     

        //if (!isRemote)
        //{
        //    dllPath = GetWebRequestPath(name);
        //}


        UnityWebRequest www = UnityWebRequest.Get(dllPath);
        www.SendWebRequest();
        while (!www.isDone)
        {
          
            yield return null;
        }

#if UNITY_2020_1_OR_NEWER
        if (www.result != UnityWebRequest.Result.Success)
        {
            Debug.Log(www.error);
        }
#else
        if (www.isHttpError || www.isNetworkError)
        {
            Debug.Log(www.error);
        }
#endif
        else
        {

          
            {

                acr = AssetBundle.LoadFromMemoryAsync(www.downloadHandler.data);

                while (!acr.isDone)
                {
                  
                    yield return null;
                }


                //AssetBundleRequest abr = acr.assetBundle.LoadAssetAsync<GameObject>("LangChaoStart");

                //while (!abr.isDone)
                //{

                //    yield return null;
                //}
                //Debug.Log(LoadByte("emqxsl-ca").Length);
                //this.gameObject.SetActive(false);           
            }

        }


     

    }

    private string GetWebRequestPath(string asset)
    {
        var path = $"{Application.streamingAssetsPath}/{asset}";
        if (!path.Contains("://"))
        {
            path = "file://" + path;
        }
        return path;
    }


    public byte[] LoadByte( string path)
    {
        acr.assetBundle.LoadAsset<TextAsset>(path);

        return  (acr.assetBundle.LoadAsset<TextAsset>(path)as TextAsset).bytes;
    }

    
}