using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Net;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.UI;

public class GetVideoImage : MonoBehaviour
{
    public string url;
    RawImage rawImage;
    MeshRenderer render;
    AVProVideoPlayer ap;
    string localpath;
    private void OnEnable()
    {
        if (localpath != "" && localpath != null)
        {

            if (File.Exists(localpath))
            {
                this.GetComponent<AVProVideoPlayer>().SetUrl(localpath);

                this.GetComponent<AVProVideoPlayer>().Play();
            }
        }
    }

    private void Start()
    {
        localpath = Application.persistentDataPath + "/OOBE/" + url.Split('/')[url.Split('/').Length-1];
        ap = this.GetComponent<AVProVideoPlayer>();
        rawImage = this.GetComponent<RawImage>();
        render = this.GetComponent<MeshRenderer>();
        if(!File.Exists(localpath))
        {
            if(!Directory.Exists(Application.persistentDataPath + "/OOBE"))
                Directory.CreateDirectory(Application.persistentDataPath + "/OOBE");
            OnDownloadAssets();

        }
    }

    private void OnDownloadAssets()//下载资源
    {
        StartCoroutine(DownloadFormServer_IE(url));
    }

    //其他方法
    private IEnumerator DownloadFormServer_IE(string url)//从服务器下载资源
    {
        Debug.Log("正在下载" + url);
        UnityWebRequest request = UnityWebRequest.Get(url);

        //直接下载不显示进度
        yield return request.SendWebRequest();

        if (request.result == UnityWebRequest.Result.ProtocolError || request.result == UnityWebRequest.Result.ConnectionError)
        {
            yield break;
        }
        DownloadHandler downloadHandler = request.downloadHandler;
        if (!downloadHandler.isDone)
        {
            Debug.Log("正在下载");
            yield return downloadHandler;
        }
        else
        {
            Debug.Log("下载完成");
            byte[] data = request.downloadHandler.data;
            using (FileStream fs = new FileStream(localpath, FileMode.Create))
            {
                fs.Write(data, 0, data.Length);
                fs.Close();
                if (localpath != "" && localpath != null)
                {

                    if (File.Exists(localpath))
                    {
                        this.GetComponent<AVProVideoPlayer>().SetUrl(localpath);

                        this.GetComponent<AVProVideoPlayer>().Play();
                    }
                }
            }

        }
    }


    // Update is called once per frame
    void Update()
    {
        if (rawImage)
        {
            rawImage.texture = ap.getTexture();
        }
        if (render)
        {
            render.material.mainTexture = ap.getTexture();
        }
    }

    private void OnDisable()
    {

        this.GetComponent<AVProVideoPlayer>().Pause();
    }
}