Implemented auto-delete feature

3 files changed, 88 insertions, 9 deletions

diff --git a/src/de/danoeh/antennapod/PodcastApp.java b/src/de/danoeh/antennapod/PodcastApp.java
index e79be2c07..9bca9a5e2 100644
--- a/src/de/danoeh/antennapod/PodcastApp.java
+++ b/src/de/danoeh/antennapod/PodcastApp.java
@@ -16,7 +16,9 @@ import android.util.Log;
 import de.danoeh.antennapod.activity.OpmlImportActivity;
 import de.danoeh.antennapod.asynctask.FeedImageLoader;
 import de.danoeh.antennapod.feed.FeedManager;
+import de.danoeh.antennapod.feed.FeedMedia;
 import de.danoeh.antennapod.receiver.FeedUpdateReceiver;
+import de.danoeh.antennapod.service.PlaybackService;
 
 /** Main application class. */
 public class PodcastApp extends Application implements
@@ -32,6 +34,7 @@ public class PodcastApp extends Application implements
 	public static final String PREF_MOBILE_UPDATE = "prefMobileUpdate";
 	public static final String PREF_AUTO_QUEUE = "prefAutoQueue";
 	public static final String PREF_DISPLAY_ONLY_EPISODES = "prefDisplayOnlyEpisodes";
+	public static final String PREF_AUTO_DELETE = "prefAutoDelete";
 
 	private static float LOGICAL_DENSITY;
 
@@ -129,6 +132,16 @@ public class PodcastApp extends Application implements
 		} else if (key.equals(PREF_DISPLAY_ONLY_EPISODES)) {
 			if (AppConfig.DEBUG) Log.d(TAG, "PREF_DISPLAY_ONLY_EPISODES changed");
 			displayOnlyEpisodes = sharedPreferences.getBoolean(PREF_DISPLAY_ONLY_EPISODES, false);
+		} else if (key.equals(PlaybackService.PREF_LAST_PLAYED_ID)) {
+			if (AppConfig.DEBUG) Log.d(TAG, "PREF_LAST_PLAYED_ID changed");
+			long mediaId = sharedPreferences.getLong(PlaybackService.PREF_AUTODELETE_MEDIA_ID, -1);
+			if (mediaId != -1) {
+				FeedManager manager = FeedManager.getInstance();
+				FeedMedia media = manager.getFeedMedia(mediaId);
+				if (media != null) {
+					manager.autoDeleteIfPossible(this, media);
+				}
+			}
 		}
 	}
 
diff --git a/src/de/danoeh/antennapod/feed/FeedManager.java b/src/de/danoeh/antennapod/feed/FeedManager.java
index 134feb6b5..370c515f6 100644
--- a/src/de/danoeh/antennapod/feed/FeedManager.java
+++ b/src/de/danoeh/antennapod/feed/FeedManager.java
@@ -12,6 +12,7 @@ import java.util.concurrent.ThreadFactory;
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.database.Cursor;
 import android.os.AsyncTask;
 import android.os.Handler;
@@ -461,6 +462,7 @@ public class FeedManager {
 	public void removeQueueItem(final Context context, FeedItem item) {
 		boolean removed = queue.remove(item);
 		if (removed) {
+			autoDeleteIfPossible(context, item.getMedia());
 			dbExec.execute(new Runnable() {
 
 				@Override
@@ -476,6 +478,49 @@ public class FeedManager {
 		sendQueueUpdateBroadcast(context, item);
 	}
 
+	/**
+	 * Delete the episode of this FeedMedia object if auto-delete is enabled and
+	 * it is not the last played media or it is the last played media and
+	 * playback has been completed.
+	 */
+	public void autoDeleteIfPossible(Context context, FeedMedia media) {
+		if (media != null) {
+			SharedPreferences prefs = PreferenceManager
+					.getDefaultSharedPreferences(context
+							.getApplicationContext());
+			boolean autoDelete = prefs.getBoolean(PodcastApp.PREF_AUTO_DELETE,
+					false);
+			if (autoDelete) {
+				long lastPlayedId = prefs.getLong(
+						PlaybackService.PREF_LAST_PLAYED_ID, -1);
+				long autoDeleteId = prefs.getLong(
+						PlaybackService.PREF_AUTODELETE_MEDIA_ID, -1);
+				boolean playbackCompleted = prefs
+						.getBoolean(
+								PlaybackService.PREF_AUTO_DELETE_MEDIA_PLAYBACK_COMPLETED,
+								false);
+				if ((media.getId() != lastPlayedId)
+						&& ((media.getId() != autoDeleteId) || (media.getId() == autoDeleteId && playbackCompleted))) {
+					if (AppConfig.DEBUG)
+						Log.d(TAG, "Performing auto-cleanup");
+					deleteFeedMedia(context, media);
+
+					SharedPreferences.Editor editor = prefs.edit();
+					editor.putLong(PlaybackService.PREF_AUTODELETE_MEDIA_ID, -1);
+					editor.commit();
+				} else {
+					if (AppConfig.DEBUG)
+						Log.d(TAG, "Didn't do auto-cleanup");
+				}
+			} else {
+				if (AppConfig.DEBUG)
+					Log.d(TAG, "Auto-delete preference is disabled");
+			}
+		} else {
+			Log.e(TAG, "Could not do auto-cleanup: media was null");
+		}
+	}
+
 	public void moveQueueItem(final Context context, FeedItem item, int delta) {
 		if (AppConfig.DEBUG)
 			Log.d(TAG, "Moving queue item");
diff --git a/src/de/danoeh/antennapod/service/PlaybackService.java b/src/de/danoeh/antennapod/service/PlaybackService.java
index 83104edc8..dcd157719 100644
--- a/src/de/danoeh/antennapod/service/PlaybackService.java
+++ b/src/de/danoeh/antennapod/service/PlaybackService.java
@@ -61,7 +61,12 @@ public class PlaybackService extends Service {
 	/** True if last played media was a video. */
 	public static final String PREF_LAST_IS_VIDEO = "de.danoeh.antennapod.preferences.lastIsVideo";
 	/** True if playback of last played media has been completed. */
-	public static final String PREF_LAST_PLAYBACK_COMPLETED = "de.danoeh.antennapod.preferences.lastPlaybackCompleted";
+	public static final String PREF_AUTO_DELETE_MEDIA_PLAYBACK_COMPLETED = "de.danoeh.antennapod.preferences.lastPlaybackCompleted";
+	/**
+	 * ID of the last played media which should be auto-deleted as soon as
+	 * PREF_LAST_PLAYED_ID changes.
+	 */
+	public static final String PREF_AUTODELETE_MEDIA_ID = "de.danoeh.antennapod.preferences.autoDeleteMediaId";
 
 	/** Contains the id of the FeedMedia object. */
 	public static final String EXTRA_MEDIA_ID = "extra.de.danoeh.antennapod.service.mediaId";
@@ -185,7 +190,7 @@ public class PlaybackService extends Service {
 			return new Intent(context, AudioplayerActivity.class);
 		}
 	}
-	
+
 	/** Get last played FeedMedia object or null if it doesn't exist. */
 	public static FeedMedia getLastPlayedMediaFromPreferences(Context context) {
 		SharedPreferences prefs = PreferenceManager
@@ -203,6 +208,18 @@ public class PlaybackService extends Service {
 		return null;
 	}
 
+	private void setLastPlayedMediaId(long mediaId) {
+		SharedPreferences prefs = PreferenceManager
+				.getDefaultSharedPreferences(getApplicationContext());
+		long autoDeleteId = prefs.getLong(PREF_AUTODELETE_MEDIA_ID, -1);
+		SharedPreferences.Editor editor = prefs.edit();
+		if (mediaId == autoDeleteId) {
+			editor.putBoolean(PREF_AUTO_DELETE_MEDIA_PLAYBACK_COMPLETED, false);
+		}
+		editor.putLong(PREF_LAST_PLAYED_ID, mediaId);
+		editor.commit();
+	}
+
 	@SuppressLint("NewApi")
 	@Override
 	public void onCreate() {
@@ -466,7 +483,7 @@ public class PlaybackService extends Service {
 					player.setDataSource(media.getDownload_url());
 					setStatus(PlayerStatus.PREPARING);
 					player.prepareAsync();
-				} else {
+				} else if (media.getFile_url() != null){
 					player.setDataSource(media.getFile_url());
 					setStatus(PlayerStatus.PREPARING);
 					player.prepare();
@@ -610,11 +627,17 @@ public class PlaybackService extends Service {
 				manager.removeQueueItem(PlaybackService.this, media.getItem());
 			}
 			manager.setFeedMedia(PlaybackService.this, media);
-			
+
+			long autoDeleteMediaId = media.getId();
+
+			if (shouldStream) {
+				autoDeleteMediaId = -1;
+			}
 			SharedPreferences.Editor editor = prefs.edit();
-			editor.putBoolean(PREF_LAST_PLAYBACK_COMPLETED, true);
+			editor.putLong(PREF_AUTODELETE_MEDIA_ID, autoDeleteMediaId);
+			editor.putBoolean(PREF_AUTO_DELETE_MEDIA_PLAYBACK_COMPLETED, true);
 			editor.commit();
-			
+
 			// Prepare for playing next item
 			boolean followQueue = prefs.getBoolean(
 					PodcastApp.PREF_FOLLOW_QUEUE, false);
@@ -723,13 +746,11 @@ public class PlaybackService extends Service {
 				SharedPreferences.Editor editor = PreferenceManager
 						.getDefaultSharedPreferences(getApplicationContext())
 						.edit();
-				editor.putLong(PREF_LAST_PLAYED_ID, media.getId());
 				editor.putLong(PREF_LAST_PLAYED_FEED_ID, feed.getId());
 				editor.putBoolean(PREF_LAST_IS_STREAM, shouldStream);
 				editor.putBoolean(PREF_LAST_IS_VIDEO, playingVideo);
-				editor.putBoolean(PREF_LAST_PLAYBACK_COMPLETED, false);
 				editor.commit();
-
+				setLastPlayedMediaId(media.getId());
 				player.start();
 				if (status != PlayerStatus.PAUSED) {
 					player.seekTo((int) media.getPosition());