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package me.chanjar.weixin.cp.api.impl;

import com.google.gson.JsonObject;
import lombok.RequiredArgsConstructor;
import me.chanjar.weixin.common.bean.result.WxMediaUploadResult;
import me.chanjar.weixin.common.error.WxErrorException;
import me.chanjar.weixin.common.error.WxRuntimeException;
import me.chanjar.weixin.common.util.fs.FileUtils;
import me.chanjar.weixin.common.util.http.BaseMediaDownloadRequestExecutor;
import me.chanjar.weixin.common.util.http.InputStreamData;
import me.chanjar.weixin.common.util.http.MediaInputStreamUploadRequestExecutor;
import me.chanjar.weixin.common.util.http.MediaUploadRequestExecutor;
import me.chanjar.weixin.common.util.json.GsonHelper;
import me.chanjar.weixin.common.util.json.GsonParser;
import me.chanjar.weixin.cp.api.WxCpMediaService;
import me.chanjar.weixin.cp.api.WxCpService;
import me.chanjar.weixin.cp.bean.media.MediaUploadByUrlReq;
import me.chanjar.weixin.cp.bean.media.MediaUploadByUrlResult;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.file.Files;
import java.util.UUID;

import static me.chanjar.weixin.cp.constant.WxCpApiPathConsts.Media.GET_UPLOAD_BY_URL_RESULT;
import static me.chanjar.weixin.cp.constant.WxCpApiPathConsts.Media.IMG_UPLOAD;
import static me.chanjar.weixin.cp.constant.WxCpApiPathConsts.Media.JSSDK_MEDIA_GET;
import static me.chanjar.weixin.cp.constant.WxCpApiPathConsts.Media.MEDIA_GET;
import static me.chanjar.weixin.cp.constant.WxCpApiPathConsts.Media.MEDIA_UPLOAD;
import static me.chanjar.weixin.cp.constant.WxCpApiPathConsts.Media.UPLOAD_BY_URL;

/**
 *  * 媒体管理接口.
 * Created by Binary Wang on 2017-6-25.
 * 
 *
 * @author Binary Wang
 */
@RequiredArgsConstructor
public class WxCpMediaServiceImpl implements WxCpMediaService {
  private final WxCpService mainService;

  @Override
  public WxMediaUploadResult upload(String mediaType, String fileType, InputStream inputStream)
    throws WxErrorException, IOException {
    return this.upload(mediaType, FileUtils.createTmpFile(inputStream, UUID.randomUUID().toString(), fileType));
  }

  @Override
  public WxMediaUploadResult upload(String mediaType, String filename, String url) throws WxErrorException,
    IOException {
    HttpURLConnection conn = null;
    InputStream inputStream = null;
    try {
      URL remote = new URL(url);
      conn = (HttpURLConnection) remote.openConnection();
      //设置超时间为3秒
      conn.setConnectTimeout(60 * 1000);
      //防止屏蔽程序抓取而返回403错误
      conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
      inputStream = conn.getInputStream();
      return this.mainService.execute(MediaInputStreamUploadRequestExecutor.create(this.mainService.getRequestHttp())
        , this.mainService.getWxCpConfigStorage().getApiUrl(MEDIA_UPLOAD + mediaType),
        new InputStreamData(inputStream, filename));
    } finally {
      if (inputStream != null) {
        try {
          inputStream.close();
        } catch (IOException e) {
        }
      }
      if (conn != null) {
        conn.disconnect();
      }
    }
  }

  @Override
  public WxMediaUploadResult upload(String mediaType, File file, String filename) throws WxErrorException {
    if(!file.exists()){
      throw new WxRuntimeException("文件[" + file.getAbsolutePath() + "]不存在");
    }
    try (InputStream inputStream = Files.newInputStream(file.toPath())) {
      return this.mainService.execute(MediaInputStreamUploadRequestExecutor.create(this.mainService.getRequestHttp())
        , this.mainService.getWxCpConfigStorage().getApiUrl(MEDIA_UPLOAD + mediaType),
        new InputStreamData(inputStream, filename));
    } catch (IOException e) {
      throw new WxRuntimeException(e);
    }
  }

  @Override
  public WxMediaUploadResult upload(String mediaType, InputStream inputStream, String filename) throws WxErrorException{
    return this.mainService.execute(MediaInputStreamUploadRequestExecutor.create(this.mainService.getRequestHttp())
      , this.mainService.getWxCpConfigStorage().getApiUrl(MEDIA_UPLOAD + mediaType),
      new InputStreamData(inputStream, filename));
  }


  @Override
  public WxMediaUploadResult upload(String mediaType, File file) throws WxErrorException {
    return this.mainService.execute(MediaUploadRequestExecutor.create(this.mainService.getRequestHttp()),
      this.mainService.getWxCpConfigStorage().getApiUrl(MEDIA_UPLOAD + mediaType), file);
  }

  @Override
  public File download(String mediaId) throws WxErrorException {
    return this.mainService.execute(
      BaseMediaDownloadRequestExecutor.create(this.mainService.getRequestHttp(),
        this.mainService.getWxCpConfigStorage().getTmpDirFile()),
      this.mainService.getWxCpConfigStorage().getApiUrl(MEDIA_GET), "media_id=" + mediaId);
  }

  @Override
  public File getJssdkFile(String mediaId) throws WxErrorException {
    return this.mainService.execute(
      BaseMediaDownloadRequestExecutor.create(this.mainService.getRequestHttp(),
        this.mainService.getWxCpConfigStorage().getTmpDirFile()),
      this.mainService.getWxCpConfigStorage().getApiUrl(JSSDK_MEDIA_GET), "media_id=" + mediaId);
  }

  @Override
  public String uploadImg(File file) throws WxErrorException {
    final String url = this.mainService.getWxCpConfigStorage().getApiUrl(IMG_UPLOAD);
    return this.mainService.execute(MediaUploadRequestExecutor.create(this.mainService.getRequestHttp()), url, file)
      .getUrl();
  }

  @Override
  public String uploadByUrl(MediaUploadByUrlReq req) throws WxErrorException {
    final String url = this.mainService.getWxCpConfigStorage().getApiUrl(UPLOAD_BY_URL);
    String responseContent = this.mainService.post(url, req.toJson());
    return GsonHelper.getString(GsonParser.parse(responseContent), "jobid");
  }

  @Override
  public MediaUploadByUrlResult uploadByUrl(String jobId) throws WxErrorException {
    final String url = this.mainService.getWxCpConfigStorage().getApiUrl(GET_UPLOAD_BY_URL_RESULT);
    JsonObject jsonObject = new JsonObject();
    jsonObject.addProperty("jobid", jobId);
    String post = this.mainService.post(url, jsonObject.toString());
    return MediaUploadByUrlResult.fromJson(post);
  }
}