content: package de.danoeh.antennapod.actionbutton;
  
  import android.content.Context;
  import android.view.View;
  import android.widget.Toast;
  
  import androidx.annotation.DrawableRes;
  import androidx.annotation.NonNull;
  import androidx.annotation.StringRes;
  
  import com.google.android.material.dialog.MaterialAlertDialogBuilder;
  import de.danoeh.antennapod.R;
  import de.danoeh.antennapod.net.download.serviceinterface.DownloadServiceInterface;
  import de.danoeh.antennapod.model.feed.FeedItem;
  import de.danoeh.antennapod.model.feed.FeedMedia;
  import de.danoeh.antennapod.storage.preferences.UsageStatistics;
  import de.danoeh.antennapod.net.common.NetworkUtils;
  
  public class DownloadActionButton extends ItemActionButton {
      private static final int TIMEOUT_NETWORK_WARN_SECONDS = 300;
      private static final int BYPASS_TYPE_NOW = 1;
      private static final int BYPASS_TYPE_LATER = 2;
  
      private static int bypassCellularNetworkType = 0;
      private static long bypassCellularNetworkWarningTimer = 0;
  
      public DownloadActionButton(FeedItem item) {
          super(item);
      }
  
      @Override
      @StringRes
      public int getLabel() {
          return R.string.download_label;
      }
  
      @Override
      @DrawableRes
      public int getDrawable() {
          return R.drawable.ic_download;
      }
  
      @Override
      public int getVisibility() {
          return item.getFeed().isLocalFeed() ? View.INVISIBLE : View.VISIBLE;
      }
  
      @Override
      public void onClick(Context context) {
          final FeedMedia media = item.getMedia();
          if (media == null || shouldNotDownload(media)) {
              return;
          }
  
          UsageStatistics.logAction(UsageStatistics.ACTION_DOWNLOAD);
  
          long timeSinceBypass = System.currentTimeMillis() / 1000 - bypassCellularNetworkWarningTimer;
          boolean shouldBypass = timeSinceBypass < TIMEOUT_NETWORK_WARN_SECONDS;
          if (shouldBypass && bypassCellularNetworkType == BYPASS_TYPE_NOW) {
              Toast.makeText(context, context.getResources().getQuantityString(R.plurals.mobile_download_notice,
                      TIMEOUT_NETWORK_WARN_SECONDS / 60, TIMEOUT_NETWORK_WARN_SECONDS / 60), Toast.LENGTH_LONG).show();
          }
          if (NetworkUtils.isEpisodeDownloadAllowed() || shouldBypass) {
              DownloadServiceInterface.get().downloadNow(context, item, bypassCellularNetworkType == BYPASS_TYPE_NOW);
          } else {
              MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(context)
                      .setTitle(R.string.confirm_mobile_download_dialog_title)
                      .setPositiveButton(R.string.confirm_mobile_download_dialog_download_later,
                              (d, w) -> {
                                  bypassCellularNetworkType = BYPASS_TYPE_LATER;
                                  bypassCellularNetworkWarningTimer = System.currentTimeMillis() / 1000;
                                  DownloadServiceInterface.get().downloadNow(context, item, false);
                              })
                      .setNeutralButton(R.string.confirm_mobile_download_dialog_allow_this_time,
                              (d, w) -> {
                                  bypassCellularNetworkType = BYPASS_TYPE_NOW;
                                  bypassCellularNetworkWarningTimer = System.currentTimeMillis() / 1000;
                                  DownloadServiceInterface.get().downloadNow(context, item, true);
                              })
                      .setNegativeButton(R.string.cancel_label, null);
              if (NetworkUtils.isNetworkRestricted() && NetworkUtils.isVpnOverWifi()) {
                  builder.setMessage(context.getString(R.string.confirm_mobile_download_dialog_message)
                          + "\n\n" + context.getString(R.string.confirm_mobile_download_dialog_message_vpn));
              } else {
                  builder.setMessage(R.string.confirm_mobile_download_dialog_message);
              }
  
              builder.show();
          }
      }
  
      private boolean shouldNotDownload(@NonNull FeedMedia media) {
          boolean isDownloading = DownloadServiceInterface.get().isDownloadingEpisode(media.getDownloadUrl());
          return isDownloading || media.isDownloaded();
      }
  }
  