private void doWork(Context context, Intent intent) {
    DownloadSchedule job =
        (DownloadSchedule) intent.getExtras().getSerializable(AppCode.SEND_DOWNLOAD_SCHEDULE);
    assert job != null : "DownloadSchedule received is null";

    AppSettings.initialize(context);
    ScheduleManager dataManager = new ScheduleManager(context);
    if (!job.repeat) {
      Calendar calendar = Calendar.getInstance();
      int day = (calendar.get(Calendar.DAY_OF_WEEK) - Calendar.MONDAY + 7) % 7;

      job.days[day] = false;

      boolean maintain = false;
      for (boolean b : job.days)
        if (b) {
          maintain = true;
          dataManager.updateDownloadSchedule(job);
          break;
        }

      if (!maintain) dataManager.deleteDownloadSchedule(job);
    }
    ScheduledDownloadReceiver.scheduleDownloads(context, dataManager.getDownloadSchedules());

    NewsArray news = dataManager.getScheduledNews(job.sites_codes);

    if (job.notify && news != null && !news.isEmpty()) {
      int[] extras = new int[news.size()];
      String[] headlines = new String[job.sites_codes.length];

      int headlineIndex = 0;
      int currentSiteCode = -1;
      for (int index = 0; index < news.size(); index++) {
        News N = news.get(index);

        extras[index] = N.id;

        if (N.site_code != currentSiteCode) {
          Site site = AppData.getSiteByCode(N.site_code);

          headlines[headlineIndex++] = site.name + ": " + N.title;
          currentSiteCode = N.site_code;
        }
      }

      // build notification
      Intent notificationIntent = new Intent(this, Main.class);
      notificationIntent.putExtra(AppCode.SEND_NEWS_IDS, extras);

      NotificationBuilder.notifyUser(
          this, NotificationBuilder.build(this, notificationIntent, headlines));
    }
    if (news == null) {
      // todo
    }
  }
  @Override
  protected void onHandleIntent(Intent intent) {
    try {

      doWork(getApplicationContext(), intent);

    } catch (Exception e) {
      AppSettings.printerror("[SDS] Error executing service", e);
    }
  }
 @Override
 public void onReceive(Context context, Intent intent) {
   AppSettings.initialize(context);
   ScheduledDownloadReceiver.scheduleDownloads(
       context, new ScheduleManager(context).getDownloadSchedules());
 }