/*
  This file is part of Subsonic.
	Subsonic is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.
	Subsonic is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.
	You should have received a copy of the GNU General Public License
	along with Subsonic. If not, see <http://www.gnu.org/licenses/>.
	Copyright 2014 (C) Scott Jackson
*/
package github.daneren2005.dsub.fragments;

import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

import android.annotation.TargetApi;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.MediaRouteButton;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.helper.ItemTouchHelper;
import android.util.Log;
import android.view.ContextMenu;
import android.view.Display;
import android.view.GestureDetector;
import android.view.GestureDetector.OnGestureListener;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.ViewFlipper;
import github.daneren2005.dsub.R;
import github.daneren2005.dsub.activity.SubsonicFragmentActivity;
import github.daneren2005.dsub.adapter.SectionAdapter;
import github.daneren2005.dsub.audiofx.EqualizerController;
import github.daneren2005.dsub.domain.Bookmark;
import github.daneren2005.dsub.domain.PlayerState;
import github.daneren2005.dsub.domain.RepeatMode;
import github.daneren2005.dsub.domain.ServerInfo;
import github.daneren2005.dsub.service.DownloadFile;
import github.daneren2005.dsub.service.DownloadService;
import github.daneren2005.dsub.service.MusicService;
import github.daneren2005.dsub.service.MusicServiceFactory;
import github.daneren2005.dsub.service.OfflineException;
import github.daneren2005.dsub.service.ServerTooOldException;
import github.daneren2005.dsub.util.Constants;
import github.daneren2005.dsub.util.SilentBackgroundTask;
import github.daneren2005.dsub.adapter.DownloadFileAdapter;
import github.daneren2005.dsub.view.FadeOutAnimation;
import github.daneren2005.dsub.view.SongView;
import github.daneren2005.dsub.view.UpdateView;
import github.daneren2005.dsub.util.Util;

import static github.daneren2005.dsub.domain.MusicDirectory.Entry;
import static github.daneren2005.dsub.domain.PlayerState.*;
import github.daneren2005.dsub.util.*;
import github.daneren2005.dsub.view.AutoRepeatButton;
import java.util.ArrayList;
import java.util.concurrent.ScheduledFuture;
import github.daneren2005.dsub.activity.SubsonicActivity;

public class NowPlayingFragment extends SubsonicFragment implements OnGestureListener, SectionAdapter.OnItemClickedListener<DownloadFile> {
	private static final String TAG = NowPlayingFragment.class.getSimpleName();
	private static final int PERCENTAGE_OF_SCREEN_FOR_SWIPE = 10;
	private static final int INCREMENT_TIME = 5000;
	private static final int SERVICE_BACKOFF = 200;

	private static final int ACTION_PREVIOUS = 1;
	private static final int ACTION_NEXT = 2;
	private static final int ACTION_REWIND = 3;
	private static final int ACTION_FORWARD = 4;

	private ViewFlipper playlistFlipper;
	private TextView emptyTextView;
	private TextView songTitleTextView;
	private ImageView albumArtImageView;
	private RecyclerView playlistView;
	private TextView positionTextView;
	private TextView durationTextView;
	private TextView statusTextView;
	private SeekBar progressBar;
	private AutoRepeatButton previousButton;
	private AutoRepeatButton nextButton;
	private View pauseButton;
	private View stopButton;
	private View startButton;
	private ImageButton repeatButton;
	private View toggleListButton;
	private ImageButton starButton;
	private ImageButton bookmarkButton;
	private ImageButton rateBadButton;
	private ImageButton rateGoodButton;
	private View mainLayout;
	private ScheduledExecutorService executorService;
	private DownloadFile currentPlaying;
	private long currentRevision;
	private int swipeDistance;
	private int swipeVelocity;
	private ScheduledFuture<?> hideControlsFuture;
	private List<DownloadFile> songList;
	private DownloadFileAdapter songListAdapter;
	private SilentBackgroundTask<Void> onProgressChangedTask;
	private SilentBackgroundTask<Void> onCurrentChangedTask;
	private SilentBackgroundTask<Void> onDownloadListChangedTask;
	private boolean seekInProgress = false;
	private boolean startFlipped = false;
	private boolean scrollWhenLoaded = false;
	private int lastY = 0;

	/**
	 * Called when the activity is first created.
	 */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		if(savedInstanceState != null) {
			if(savedInstanceState.getInt(Constants.FRAGMENT_DOWNLOAD_FLIPPER) == 1) {
				startFlipped = true;
			}
		}
		primaryFragment = false;
	}

	@Override
	public void onSaveInstanceState(Bundle outState) {
		super.onSaveInstanceState(outState);
		outState.putInt(Constants.FRAGMENT_DOWNLOAD_FLIPPER, playlistFlipper.getDisplayedChild());
	}

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
		rootView = inflater.inflate(R.layout.download, container, false);
		setTitle(R.string.button_bar_now_playing);

		mainLayout = rootView.findViewById(R.id.download_layout);

		WindowManager w = context.getWindowManager();
		Display d = w.getDefaultDisplay();
		swipeDistance = (d.getWidth() + d.getHeight()) * PERCENTAGE_OF_SCREEN_FOR_SWIPE / 100;
		swipeVelocity = (d.getWidth() + d.getHeight()) * PERCENTAGE_OF_SCREEN_FOR_SWIPE / 100;
		gestureScanner = new GestureDetector(this);

		playlistFlipper = (ViewFlipper)rootView.findViewById(R.id.download_playlist_flipper);
		emptyTextView = (TextView)rootView.findViewById(R.id.download_empty);
		songTitleTextView = (TextView)rootView.findViewById(R.id.download_song_title);
		albumArtImageView = (ImageView)rootView.findViewById(R.id.download_album_art_image);
		positionTextView = (TextView)rootView.findViewById(R.id.download_position);
		durationTextView = (TextView)rootView.findViewById(R.id.download_duration);
		statusTextView = (TextView)rootView.findViewById(R.id.download_status);
		progressBar = (SeekBar)rootView.findViewById(R.id.download_progress_bar);
		previousButton = (AutoRepeatButton)rootView.findViewById(R.id.download_previous);
		nextButton = (AutoRepeatButton)rootView.findViewById(R.id.download_next);
		pauseButton =rootView.findViewById(R.id.download_pause);
		stopButton =rootView.findViewById(R.id.download_stop);
		startButton =rootView.findViewById(R.id.download_start);
		repeatButton = (ImageButton)rootView.findViewById(R.id.download_repeat);
		bookmarkButton = (ImageButton) rootView.findViewById(R.id.download_bookmark);
		rateBadButton = (ImageButton) rootView.findViewById(R.id.download_rating_bad);
		rateGoodButton = (ImageButton) rootView.findViewById(R.id.download_rating_good);
		toggleListButton =rootView.findViewById(R.id.download_toggle_list);

		playlistView = (RecyclerView)rootView.findViewById(R.id.download_list);
		setupLayoutManager(playlistView, false);
		ItemTouchHelper touchHelper = new ItemTouchHelper(new ItemTouchHelper.SimpleCallback(ItemTouchHelper.UP | ItemTouchHelper.DOWN, ItemTouchHelper.LEFT) {
			@Override
			public boolean onMove(RecyclerView recyclerView, final RecyclerView.ViewHolder fromHolder, final RecyclerView.ViewHolder toHolder) {
				new SilentBackgroundTask<Void>(context) {
					private int from;
					private int to;

					@Override
					protected Void doInBackground() throws Throwable {
						from = fromHolder.getAdapterPosition();
						to = toHolder.getAdapterPosition();
						getDownloadService().swap(true, from, to);
						return null;
					}

					@Override
					protected void done(Void result) {
						songListAdapter.notifyItemMoved(from, to);
					}
				}.execute();

				return true;
			}

			@Override
			public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
				SongView songView = (SongView) ((UpdateView.UpdateViewHolder) viewHolder).getUpdateView();
				DownloadFile downloadFile = songView.getDownloadFile();

				DownloadService downloadService = getDownloadService();
				downloadService.remove(downloadFile);
				songListAdapter.removeItem(downloadFile);
				currentRevision = downloadService.getDownloadListUpdateRevision();
			}
		});
		touchHelper.attachToRecyclerView(playlistView);

		starButton = (ImageButton)rootView.findViewById(R.id.download_star);
		if(Util.getPreferences(context).getBoolean(Constants.PREFERENCES_KEY_MENU_STAR, true)) {
			starButton.setOnClickListener(new OnClickListener() {
				@Override
				public void onClick(View v) {
					DownloadFile currentDownload = getDownloadService().getCurrentPlaying();
					if (currentDownload != null) {
						final Entry currentSong = currentDownload.getSong();
						toggleStarred(currentSong, new OnStarChange() {
							@Override
							void starChange(boolean starred) {
								starButton.setImageResource(currentSong.isStarred() ? android.R.drawable.btn_star_big_on : android.R.drawable.btn_star_big_off);
							}
						});
					}
				}
			});
		} else {
			starButton.setVisibility(View.GONE);
		}

		View.OnTouchListener touchListener = new View.OnTouchListener() {
			@Override
			public boolean onTouch(View v, MotionEvent me) {
				return gestureScanner.onTouchEvent(me);
			}
		};
		pauseButton.setOnTouchListener(touchListener);
		stopButton.setOnTouchListener(touchListener);
		startButton.setOnTouchListener(touchListener);
		bookmarkButton.setOnTouchListener(touchListener);
		rateBadButton.setOnTouchListener(touchListener);
		rateGoodButton.setOnTouchListener(touchListener);
		emptyTextView.setOnTouchListener(touchListener);
		albumArtImageView.setOnTouchListener(new View.OnTouchListener() {
			@Override
			public boolean onTouch(View v, MotionEvent me) {
				if (me.getAction() == MotionEvent.ACTION_DOWN) {
					lastY = (int) me.getRawY();
				}
				return gestureScanner.onTouchEvent(me);
			}
		});

		previousButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				warnIfStorageUnavailable();
				new SilentBackgroundTask<Void>(context) {
					@Override
					protected Void doInBackground() throws Throwable {
						getDownloadService().previous();
						return null;
					}

					@Override
					protected void done(Void result) {
						onCurrentChanged();
						onProgressChanged();
					}
				}.execute();
				setControlsVisible(true);
			}
		});
		previousButton.setOnRepeatListener(new Runnable() {
			public void run() {
				changeProgress(-INCREMENT_TIME);
			}
		});

		nextButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				warnIfStorageUnavailable();
				new SilentBackgroundTask<Boolean>(context) {
					@Override
					protected Boolean doInBackground() throws Throwable {
						getDownloadService().next();
						return true;
					}

					@Override
					protected void done(Boolean result) {
						if (result) {
							onCurrentChanged();
							onProgressChanged();
						}
					}
				}.execute();
				setControlsVisible(true);
			}
		});
		nextButton.setOnRepeatListener(new Runnable() {
			public void run() {
				changeProgress(INCREMENT_TIME);
			}
		});

		pauseButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				new SilentBackgroundTask<Void>(context) {
					@Override
					protected Void doInBackground() throws Throwable {
						getDownloadService().pause();
						return null;
					}

					@Override
					protected void done(Void result) {
						onCurrentChanged();
						onProgressChanged();
					}
				}.execute();
			}
		});

		stopButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				new SilentBackgroundTask<Void>(context) {
					@Override
					protected Void doInBackground() throws Throwable {
						getDownloadService().reset();
						return null;
					}

					@Override
					protected void done(Void result) {
						onCurrentChanged();
						onProgressChanged();
					}
				}.execute();
			}
		});

		startButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				warnIfStorageUnavailable();
				new SilentBackgroundTask<Void>(context) {
					@Override
					protected Void doInBackground() throws Throwable {
						start();
						return null;
					}

					@Override
					protected void done(Void result) {
						onCurrentChanged();
						onProgressChanged();
					}
				}.execute();
			}
		});

		repeatButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				RepeatMode repeatMode = getDownloadService().getRepeatMode().next();
				getDownloadService().setRepeatMode(repeatMode);
				onDownloadListChanged();
				switch (repeatMode) {
					case OFF:
						Util.toast(context, R.string.download_repeat_off);
						break;
					case ALL:
						Util.toast(context, R.string.download_repeat_all);
						break;
					case SINGLE:
						Util.toast(context, R.string.download_repeat_single);
						break;
					default:
						break;
				}
				setControlsVisible(true);
			}
		});

		bookmarkButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				createBookmark();
			}
		});

		rateBadButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				DownloadService downloadService = getDownloadService();
				if(downloadService == null) {
					return;
				}

				DownloadFile downloadFile = downloadService.getCurrentPlaying();
				if(downloadFile == null) {
					return;
				}
				Entry entry = downloadFile.getSong();

				// If rating == 1, already set so unset
				if(entry.getRating() == 1) {
					setRating(entry, 0);

					if(context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
						rateBadButton.setImageResource(R.drawable.ic_action_rating_bad_dark);
					} else {
						rateBadButton.setImageResource(Util.getAttribute(context, R.attr.rating_bad));
					}
				} else {
					// Immediately skip to the next song
					downloadService.next(true);

					// Otherwise set rating to 1
					setRating(entry, 1);
					rateBadButton.setImageResource(R.drawable.ic_action_rating_bad_selected);

					// Make sure good rating is blank
					if (context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
						rateGoodButton.setImageResource(R.drawable.ic_action_rating_good_dark);
					} else {
						rateGoodButton.setImageResource(Util.getAttribute(context, R.attr.rating_good));
					}
				}
			}
		});
		rateGoodButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				DownloadService downloadService = getDownloadService();
				if(downloadService == null) {
					return;
				}

				DownloadFile downloadFile = downloadService.getCurrentPlaying();
				if(downloadFile == null) {
					return;
				}
				Entry entry = downloadFile.getSong();

				// If rating == 5, already set so unset
				if(entry.getRating() == 5) {
					setRating(entry, 0);

					if (context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
						rateGoodButton.setImageResource(R.drawable.ic_action_rating_good_dark);
					} else {
						rateGoodButton.setImageResource(Util.getAttribute(context, R.attr.rating_good));
					}
				} else {
					// Otherwise set rating to maximum
					setRating(entry, 5);
					rateGoodButton.setImageResource(R.drawable.ic_action_rating_good_selected);

					// Make sure bad rating is blank
					if (context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
						rateBadButton.setImageResource(R.drawable.ic_action_rating_bad_dark);
					} else {
						rateBadButton.setImageResource(Util.getAttribute(context, R.attr.rating_bad));
					}
				}
			}
		});

		toggleListButton.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				toggleFullscreenAlbumArt();
				setControlsVisible(true);
			}
		});

		View overlay = rootView.findViewById(R.id.download_overlay_buttons);
		final int overlayHeight = overlay != null ? overlay.getHeight() : -1;
		albumArtImageView.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View view) {
				if (overlayHeight == -1 || lastY < (view.getBottom() - overlayHeight)) {
					toggleFullscreenAlbumArt();
					setControlsVisible(true);
				}
			}
		});

		progressBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
			@Override
			public void onStopTrackingTouch(final SeekBar seekBar) {
				new SilentBackgroundTask<Void>(context) {
					@Override
					protected Void doInBackground() throws Throwable {
						getDownloadService().seekTo(progressBar.getProgress());
						return null;
					}

					@Override
					protected void done(Void result) {
						seekInProgress = false;
						NowPlayingFragment.this.onProgressChanged();
					}
				}.execute();
			}

			@Override
			public void onStartTrackingTouch(final SeekBar seekBar) {
				seekInProgress = true;
			}

			@Override
			public void onProgressChanged(final SeekBar seekBar, final int position, final boolean fromUser) {
				if (fromUser) {
					Util.toast(context, Util.formatDuration(position / 1000), true);
					setControlsVisible(true);
				}
			}
		});
		registerForContextMenu(playlistView);

		if(Build.MODEL.equals("Nexus 4") || Build.MODEL.equals("GT-I9100")) {
			View slider = rootView.findViewById(R.id.download_slider);
			slider.setPadding(0, 0, 0, 0);
		}

		return rootView;
	}

	@Override
	public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
		DownloadService downloadService = getDownloadService();
		if(Util.isOffline(context)) {
			menuInflater.inflate(R.menu.nowplaying_offline, menu);
		} else {
			menuInflater.inflate(R.menu.nowplaying, menu);

			if(downloadService != null && downloadService.getSleepTimer()) {
				menu.findItem(R.id.menu_toggle_timer).setTitle(R.string.download_stop_timer);
			}
		}
		if(downloadService != null && downloadService.getKeepScreenOn()) {
			menu.findItem(R.id.menu_screen_on_off).setChecked(true);
		}
		if(downloadService != null && downloadService.isRemovePlayed()) {
			menu.findItem(R.id.menu_remove_played).setChecked(true);
		}

		boolean equalizerAvailable = downloadService != null && downloadService.getEqualizerAvailable();
		if(equalizerAvailable && !downloadService.isRemoteEnabled()) {
			SharedPreferences prefs = Util.getPreferences(context);
			boolean equalizerOn = prefs.getBoolean(Constants.PREFERENCES_EQUALIZER_ON, false);
			if (equalizerOn && getDownloadService() != null && getDownloadService().getEqualizerController() != null &&
					getDownloadService().getEqualizerController().isEnabled()) {
				menu.findItem(R.id.menu_equalizer).setChecked(true);
			}
		} else {
			menu.removeItem(R.id.menu_equalizer);
		}

		if(downloadService != null) {
			MenuItem mediaRouteItem = menu.findItem(R.id.menu_mediaroute);
			if(mediaRouteItem != null) {
				MediaRouteButton mediaRouteButton = (MediaRouteButton) MenuItemCompat.getActionView(mediaRouteItem);
				mediaRouteButton.setRouteSelector(downloadService.getRemoteSelector());
			}
		}
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem menuItem) {
		if(menuItemSelected(menuItem.getItemId(), null)) {
			return true;
		}

		return super.onOptionsItemSelected(menuItem);
	}

	@Override
	public void onCreateContextMenu(android.view.ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
		super.onCreateContextMenu(menu, view, menuInfo);
		if(!primaryFragment) {
			return;
		}
		UpdateView targetView = songListAdapter.getContextView();
		menuInfo = new AdapterView.AdapterContextMenuInfo(targetView, 0, 0);

		if (view == playlistView) {
			DownloadFile downloadFile = songListAdapter.getContextItem();

			android.view.MenuInflater inflater = context.getMenuInflater();
			if(Util.isOffline(context)) {
				inflater.inflate(R.menu.nowplaying_context_offline, menu);
			} else {
				inflater.inflate(R.menu.nowplaying_context, menu);
				menu.findItem(R.id.menu_star).setTitle(downloadFile.getSong().isStarred() ? R.string.common_unstar : R.string.common_star);
			}

			if (downloadFile.getSong().getParent() == null) {
				menu.findItem(R.id.menu_show_album).setVisible(false);
				menu.findItem(R.id.menu_show_artist).setVisible(false);
			}

			hideMenuItems(menu, (AdapterView.AdapterContextMenuInfo) menuInfo);
		}
	}

	@Override
	public boolean onContextItemSelected(android.view.MenuItem menuItem) {
		if(!primaryFragment) {
			return false;
		}

		DownloadFile downloadFile = songListAdapter.getContextItem();
		return menuItemSelected(menuItem.getItemId(), downloadFile) || super.onContextItemSelected(menuItem);
	}

	private boolean menuItemSelected(int menuItemId, final DownloadFile song) {
		switch (menuItemId) {
			case R.id.menu_show_album: case R.id.menu_show_artist:
				Entry entry = song.getSong();

				Intent intent = new Intent(context, SubsonicFragmentActivity.class);
				intent.putExtra(Constants.INTENT_EXTRA_VIEW_ALBUM, true);
				String albumId;
				String albumName;
				if(menuItemId == R.id.menu_show_album) {
					if(Util.isTagBrowsing(context)) {
						albumId = entry.getAlbumId();
					} else {
						albumId = entry.getParent();
					}
					albumName = entry.getAlbum();
				} else {
					if(Util.isTagBrowsing(context)) {
						albumId = entry.getArtistId();
					} else {
						albumId = entry.getGrandParent();
						if(albumId == null) {
							intent.putExtra(Constants.INTENT_EXTRA_NAME_CHILD_ID, entry.getParent());
						}
					}
					albumName = entry.getArtist();
					intent.putExtra(Constants.INTENT_EXTRA_NAME_ARTIST, true);
				}
				intent.putExtra(Constants.INTENT_EXTRA_NAME_ID, albumId);
				intent.putExtra(Constants.INTENT_EXTRA_NAME_NAME, albumName);
				intent.putExtra(Constants.INTENT_EXTRA_FRAGMENT_TYPE, "Artist");

				if(Util.isOffline(context)) {
					try {
						// This should only be successful if this is a online song in offline mode
						Integer.parseInt(entry.getParent());
						String root = FileUtil.getMusicDirectory(context).getPath();
						String id = root + "/" + entry.getPath();
						id = id.substring(0, id.lastIndexOf("/"));
						if(menuItemId == R.id.menu_show_album) {
							intent.putExtra(Constants.INTENT_EXTRA_NAME_ID, id);
						}
						id = id.substring(0, id.lastIndexOf("/"));
						if(menuItemId != R.id.menu_show_album) {
							intent.putExtra(Constants.INTENT_EXTRA_NAME_ID, id);
							intent.putExtra(Constants.INTENT_EXTRA_NAME_NAME, entry.getArtist());
							intent.removeExtra(Constants.INTENT_EXTRA_NAME_CHILD_ID);
						}
					} catch(Exception e) {
						// Do nothing, entry.getParent() is fine
					}
				}

				intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
				Util.startActivityWithoutTransition(context, intent);
				return true;
			case R.id.menu_lyrics: {
				SubsonicFragment fragment = new LyricsFragment();
				Bundle args = new Bundle();
				args.putString(Constants.INTENT_EXTRA_NAME_ARTIST, song.getSong().getArtist());
				args.putString(Constants.INTENT_EXTRA_NAME_TITLE, song.getSong().getTitle());
				fragment.setArguments(args);

				replaceFragment(fragment);
				return true;
			} case R.id.menu_remove:
				new SilentBackgroundTask<Void>(context) {
					@Override
					protected Void doInBackground() throws Throwable {
						getDownloadService().remove(song);
						return null;
					}

					@Override
					protected void done(Void result) {
						onDownloadListChanged();
					}
				}.execute();
				return true;
			case R.id.menu_delete:
				List<Entry> songs = new ArrayList<Entry>(1);
				songs.add(song.getSong());
				getDownloadService().delete(songs);
				return true;
			case R.id.menu_remove_all:
				Util.confirmDialog(context, R.string.download_menu_remove_all, "", new DialogInterface.OnClickListener() {
					@Override
					public void onClick(DialogInterface dialog, int which) {
						new SilentBackgroundTask<Void>(context) {
							@Override
							protected Void doInBackground() throws Throwable {
								getDownloadService().setShufflePlayEnabled(false);
								getDownloadService().clear();
								return null;
							}

							@Override
							protected void done(Void result) {
								onDownloadListChanged();
							}
						}.execute();
					}
				});
				return true;
			case R.id.menu_screen_on_off:
				if (getDownloadService().getKeepScreenOn()) {
					context.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
					getDownloadService().setKeepScreenOn(false);
				} else {
					context.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
					getDownloadService().setKeepScreenOn(true);
				}
				context.supportInvalidateOptionsMenu();
				return true;
			case R.id.menu_remove_played:
				if (getDownloadService().isRemovePlayed()) {
					getDownloadService().setRemovePlayed(false);
				} else {
					getDownloadService().setRemovePlayed(true);
				}
				context.supportInvalidateOptionsMenu();
				return true;
			case R.id.menu_shuffle:
				new SilentBackgroundTask<Void>(context) {
					@Override
					protected Void doInBackground() throws Throwable {
						getDownloadService().shuffle();
						return null;
					}

					@Override
					protected void done(Void result) {
						Util.toast(context, R.string.download_menu_shuffle_notification);
					}
				}.execute();
				return true;
			case R.id.menu_save_playlist:
				List<Entry> entries = new LinkedList<Entry>();
				for (DownloadFile downloadFile : getDownloadService().getSongs()) {
					entries.add(downloadFile.getSong());
				}
				createNewPlaylist(entries, true);
				return true;
			case R.id.menu_star:
				toggleStarred(song.getSong());
				return true;
			case R.id.menu_rate:
				setRating(song.getSong());
				return true;
			case R.id.menu_toggle_timer:
				if(getDownloadService().getSleepTimer()) {
					getDownloadService().stopSleepTimer();
					context.supportInvalidateOptionsMenu();
				} else {
					startTimer();
				}
				return true;
			case R.id.menu_add_playlist:
				songs = new ArrayList<Entry>(1);
				songs.add(song.getSong());
				addToPlaylist(songs);
				return true;
			case R.id.menu_info:
				displaySongInfo(song.getSong());
				return true;
			case R.id.menu_share:
				songs = new ArrayList<Entry>(1);
				songs.add(song.getSong());
				createShare(songs);
				return true;
			case R.id.menu_equalizer: {
				DownloadService downloadService = getDownloadService();
				if (downloadService != null) {
					EqualizerController controller = downloadService.getEqualizerController();
					if(controller != null) {
						SubsonicFragment fragment = new EqualizerFragment();
						replaceFragment(fragment);
						setControlsVisible(true);

						return true;
					}
				}

				// Any failed condition will get here
				Util.toast(context, "Failed to start equalizer.  Try restarting.");
				return true;
			} default:
				return false;
		}
	}

	@Override
	public void onResume() {
		super.onResume();
		if(this.primaryFragment) {
			onResumeHandlers();
		} else {
			update();
		}
	}
	private void onResumeHandlers() {
		final Handler handler = new Handler();
		Runnable runnable = new Runnable() {
			@Override
			public void run() {
				handler.post(new Runnable() {
					@Override
					public void run() {
						update();
					}
				});
			}
		};

		executorService = Executors.newSingleThreadScheduledExecutor();
		executorService.scheduleWithFixedDelay(runnable, 0L, 1000L, TimeUnit.MILLISECONDS);

		setControlsVisible(true);

		DownloadService downloadService = getDownloadService();
		if (downloadService == null || downloadService.getCurrentPlaying() == null || startFlipped) {
			playlistFlipper.setDisplayedChild(1);
		}
		if (downloadService != null && downloadService.getKeepScreenOn()) {
			context.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
		} else {
			context.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
		}

		updateButtons();

		if(currentPlaying == null && downloadService != null && currentPlaying == downloadService.getCurrentPlaying()) {
			getImageLoader().loadImage(albumArtImageView, (Entry) null, true, false);
		}
		if(downloadService != null) {
			downloadService.startRemoteScan();
		} else {
			// Make sure to call remote scan once the service is ready
			final Runnable waitForService = new Runnable() {
				@Override
				public void run() {
					DownloadService service = getDownloadService();
					if(service != null) {
						service.startRemoteScan();
					} else {
						handler.postDelayed(this, SERVICE_BACKOFF);
					}
				}
			};

			handler.postDelayed(waitForService, SERVICE_BACKOFF);
		}
	}

	@Override
	public void onPause() {
		super.onPause();
		onPauseHandlers();
	}
	private void onPauseHandlers() {
		if(executorService != null) {
			executorService.shutdown();
			if (getDownloadService() != null) {
				getDownloadService().stopRemoteScan();
			}
			executorService = null;
			playlistFlipper.setDisplayedChild(0);
		}
	}

	@Override
	public void setPrimaryFragment(boolean primary) {
		super.setPrimaryFragment(primary);
		if(rootView != null) {
			if(primary) {
				onResumeHandlers();
			} else {
				onPauseHandlers();
			}
		}
	}

	@Override
	public void setTitle(int title) {
		this.title = context.getResources().getString(title);
		if(this.primaryFragment) {
			context.setTitle(this.title);
		}
	}
	@Override
	public void setSubtitle(CharSequence title) {
		this.subtitle = title;
		if(this.primaryFragment) {
			context.setSubtitle(title);
		}
	}

	private void scheduleHideControls() {
		if (hideControlsFuture != null) {
			hideControlsFuture.cancel(false);
		}

		final Handler handler = new Handler();
		Runnable runnable = new Runnable() {
			@Override
			public void run() {
				handler.post(new Runnable() {
					@Override
					public void run() {
						setControlsVisible(false);
					}
				});
			}
		};
		hideControlsFuture = executorService.schedule(runnable, 3000L, TimeUnit.MILLISECONDS);
	}

	private void setControlsVisible(boolean visible) {
		try {
			long duration = 1700L;
			FadeOutAnimation.createAndStart(rootView.findViewById(R.id.download_overlay_buttons), !visible, duration);

			if (visible) {
				scheduleHideControls();
			}
		} catch(Exception e) {

		}
	}

	private void updateButtons() {
		if(context == null) {
			return;
		}

		if(Util.isOffline(context)) {
			bookmarkButton.setVisibility(View.GONE);
			rateBadButton.setVisibility(View.GONE);
			rateGoodButton.setVisibility(View.GONE);
		} else {
			if(ServerInfo.canBookmark(context)) {
				bookmarkButton.setVisibility(View.VISIBLE);
			} else {
				bookmarkButton.setVisibility(View.GONE);
			}
			rateBadButton.setVisibility(View.VISIBLE);
			rateGoodButton.setVisibility(View.VISIBLE);
		}
	}

	// Scroll to current playing/downloading.
	@TargetApi(Build.VERSION_CODES.LOLLIPOP)
	private void scrollToCurrent() {
		if (getDownloadService() == null || songListAdapter == null) {
			scrollWhenLoaded = true;
			return;
		}

		// Try to get position of current playing/downloading
		int position = songListAdapter.getItemPosition(currentPlaying);
		if(position == -1) {
			DownloadFile currentDownloading = getDownloadService().getCurrentDownloading();
			position = songListAdapter.getItemPosition(currentDownloading);
		}

		// If found, scroll to it
		if(position != -1) {
			// RecyclerView.scrollToPosition just puts it on the screen (ie: bottom if scrolled below it)
			LinearLayoutManager layoutManager = (LinearLayoutManager) playlistView.getLayoutManager();
			layoutManager.scrollToPositionWithOffset(position, 0);
		}
	}

	private void update() {
		if (getDownloadService() == null) {
			return;
		}

		if (currentRevision != getDownloadService().getDownloadListUpdateRevision()) {
			onDownloadListChanged();
		}

		if (currentPlaying != getDownloadService().getCurrentPlaying()) {
			onCurrentChanged();
		}

		if(startFlipped) {
			startFlipped = false;
			scrollToCurrent();
		}

		onProgressChanged();
	}

	protected void startTimer() {
		View dialogView = context.getLayoutInflater().inflate(R.layout.start_timer, null);

		// Setup length label
		final TextView lengthBox = (TextView) dialogView.findViewById(R.id.timer_length_label);
		final SharedPreferences prefs = Util.getPreferences(context);
		String lengthString = prefs.getString(Constants.PREFERENCES_KEY_SLEEP_TIMER_DURATION, "5");
		int length = Integer.parseInt(lengthString);
		lengthBox.setText(Util.formatDuration(length));

		// Setup length slider
		final SeekBar lengthBar = (SeekBar) dialogView.findViewById(R.id.timer_length_bar);
		lengthBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
			@Override
			public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
				if (fromUser) {
					int length = getMinutes(progress);
					lengthBox.setText(Util.formatDuration(length));
					seekBar.setProgress(progress);
				}
			}

			@Override
			public void onStartTrackingTouch(SeekBar seekBar) {
			}

			@Override
			public void onStopTrackingTouch(SeekBar seekBar) {
			}
		});
		lengthBar.setProgress(length - 1);

		AlertDialog.Builder builder = new AlertDialog.Builder(context);
		builder.setTitle(R.string.menu_set_timer)
				.setView(dialogView)
				.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
					@Override
					public void onClick(DialogInterface dialog, int id) {
						int length = getMinutes(lengthBar.getProgress());

						SharedPreferences.Editor editor = prefs.edit();
						editor.putString(Constants.PREFERENCES_KEY_SLEEP_TIMER_DURATION, Integer.toString(length));
						editor.commit();

						getDownloadService().setSleepTimerDuration(length);
						getDownloadService().startSleepTimer();
						context.supportInvalidateOptionsMenu();
					}
				})
				.setNegativeButton(R.string.common_cancel, null);
		AlertDialog dialog = builder.create();
		dialog.show();
	}

	private int getMinutes(int progress) {
		if(progress < 30) {
			return progress + 1;
		} else if(progress < 61) {
			return (progress - 30) * 5 + getMinutes(29);
		} else {
			return (progress - 61) * 15 + getMinutes(60);
		}
	}

	private void toggleFullscreenAlbumArt() {
		if (playlistFlipper.getDisplayedChild() == 1) {
			playlistFlipper.setInAnimation(AnimationUtils.loadAnimation(context, R.anim.push_down_in));
			playlistFlipper.setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.push_down_out));
			playlistFlipper.setDisplayedChild(0);
		} else {
			scrollToCurrent();
			playlistFlipper.setInAnimation(AnimationUtils.loadAnimation(context, R.anim.push_up_in));
			playlistFlipper.setOutAnimation(AnimationUtils.loadAnimation(context, R.anim.push_up_out));
			playlistFlipper.setDisplayedChild(1);

			UpdateView.triggerUpdate();
		}
	}

	private void start() {
		DownloadService service = getDownloadService();
		PlayerState state = service.getPlayerState();
		if (state == PAUSED || state == COMPLETED || state == STOPPED) {
			service.start();
		} else if (state == STOPPED || state == IDLE) {
			warnIfStorageUnavailable();
			int current = service.getCurrentPlayingIndex();
			// TODO: Use play() method.
			if (current == -1) {
				service.play(0);
			} else {
				service.play(current);
			}
		}
	}
	private void onDownloadListChanged() {
		onDownloadListChanged(false);
	}
	private void onDownloadListChanged(final boolean refresh) {
		final DownloadService downloadService = getDownloadService();
		if (downloadService == null || onDownloadListChangedTask != null) {
			return;
		}

		onDownloadListChangedTask = new SilentBackgroundTask<Void>(context) {
			int currentPlayingIndex;
			int size;

			@Override
			protected Void doInBackground() throws Throwable {
				currentPlayingIndex = downloadService.getCurrentPlayingIndex() + 1;
				size = downloadService.size();

				return null;
			}

			@Override
			protected void done(Void result) {
				List<DownloadFile> list;
				list = downloadService.getSongs();

				if(downloadService.isShufflePlayEnabled()) {
					emptyTextView.setText(R.string.download_shuffle_loading);
				}
				else {
					emptyTextView.setText(R.string.download_empty);
				}

				if(songListAdapter == null || refresh) {
					songList = new ArrayList<>();
					songList.addAll(list);
					playlistView.setAdapter(songListAdapter = new DownloadFileAdapter(context, songList, NowPlayingFragment.this));
				} else {
					songList.clear();
					songList.addAll(list);
					songListAdapter.notifyDataSetChanged();
				}

				emptyTextView.setVisibility(list.isEmpty() ? View.VISIBLE : View.GONE);
				currentRevision = downloadService.getDownloadListUpdateRevision();

				switch (downloadService.getRepeatMode()) {
					case OFF:
						if("light".equals(SubsonicActivity.getThemeName()) | "light_fullscreen".equals(SubsonicActivity.getThemeName())) {
							repeatButton.setImageResource(R.drawable.media_repeat_off_light);
						} else {
							repeatButton.setImageResource(R.drawable.media_repeat_off);
						}
						break;
					case ALL:
						repeatButton.setImageResource(R.drawable.media_repeat_all);
						break;
					case SINGLE:
						repeatButton.setImageResource(R.drawable.media_repeat_single);
						break;
					default:
						break;
				}

				if(scrollWhenLoaded) {
					scrollToCurrent();
					scrollWhenLoaded = false;
				}

				setSubtitle(context.getResources().getString(R.string.download_playing_out_of, currentPlayingIndex, size));
				onDownloadListChangedTask = null;
				if(onCurrentChangedTask != null) {
					onCurrentChangedTask.execute();
				} else if(onProgressChangedTask != null) {
					onProgressChangedTask.execute();
				}
			}
		};
		onDownloadListChangedTask.execute();
	}

	private void onCurrentChanged() {
		final DownloadService downloadService = getDownloadService();
		if (downloadService == null  || onCurrentChangedTask != null) {
			return;
		}

		onCurrentChangedTask = new SilentBackgroundTask<Void>(context) {
			int currentPlayingIndex;
			int currentPlayingSize;

			@Override
			protected Void doInBackground() throws Throwable {
				currentPlaying = downloadService.getCurrentPlaying();
				currentPlayingIndex = downloadService.getCurrentPlayingIndex() + 1;
				currentPlayingSize = downloadService.size();
				return null;
			}

			@Override
			protected void done(Void result) {
				if (currentPlaying != null) {
					Entry song = currentPlaying.getSong();
					songTitleTextView.setText(song.getTitle());
					getImageLoader().loadImage(albumArtImageView, song, true, true);
					starButton.setImageResource(song.isStarred() ? android.R.drawable.btn_star_big_on : android.R.drawable.btn_star_big_off);
					setSubtitle(context.getResources().getString(R.string.download_playing_out_of, currentPlayingIndex, currentPlayingSize));

					int badRating, goodRating, bookmark;
					if(song.getRating() == 1) {
						badRating = R.drawable.ic_action_rating_bad_selected;
					} else if(context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
						badRating = R.drawable.ic_action_rating_bad_dark;
					} else {
						badRating = Util.getAttribute(context, R.attr.rating_bad);
					}
					rateBadButton.setImageResource(badRating);

					if(song.getRating() == 5) {
						goodRating = R.drawable.ic_action_rating_good_selected;
					} else if(context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
						goodRating = R.drawable.ic_action_rating_good_dark;
					} else {
						goodRating = Util.getAttribute(context, R.attr.rating_good);
					}
					rateGoodButton.setImageResource(goodRating);

					if(song.getBookmark() != null) {
						bookmark = R.drawable.ic_menu_bookmark_selected;
					} else if(context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
						bookmark = R.drawable.ic_menu_bookmark_dark;
					} else {
						bookmark = Util.getAttribute(context, R.attr.bookmark);
					}
					bookmarkButton.setImageResource(bookmark);
				} else {
					songTitleTextView.setText(null);
					getImageLoader().loadImage(albumArtImageView, (Entry) null, true, false);
					starButton.setImageResource(android.R.drawable.btn_star_big_off);
					setSubtitle(null);
				}
				onCurrentChangedTask = null;
				if(onProgressChangedTask != null) {
					onProgressChangedTask.execute();
				}
			}
		};

		if(onDownloadListChangedTask == null) {
			onCurrentChangedTask.execute();
		}
	}

	private void onProgressChanged() {
		// Make sure to only be trying to run one of these at a time
		if (getDownloadService() == null || onProgressChangedTask != null) {
			return;
		}

		onProgressChangedTask = new SilentBackgroundTask<Void>(context) {
			DownloadService downloadService;
			int millisPlayed;
			Integer duration;
			PlayerState playerState;
			boolean isSeekable;

			@Override
			protected Void doInBackground() throws Throwable {
				downloadService = getDownloadService();
				millisPlayed = Math.max(0, downloadService.getPlayerPosition());
				duration = downloadService.getPlayerDuration();
				playerState = getDownloadService().getPlayerState();
				isSeekable = downloadService.isSeekable();
				return null;
			}

			@Override
			protected void done(Void result) {
				if (currentPlaying != null) {
					int millisTotal = duration == null ? 0 : duration;

					positionTextView.setText(Util.formatDuration(millisPlayed / 1000));
					if(millisTotal > 0) {
						durationTextView.setText(Util.formatDuration(millisTotal / 1000));
					} else {
						durationTextView.setText("-:--");
					}
					progressBar.setMax(millisTotal == 0 ? 100 : millisTotal); // Work-around for apparent bug.
					if(!seekInProgress) {
						progressBar.setProgress(millisPlayed);
					}
					progressBar.setEnabled(isSeekable);
				} else {
					positionTextView.setText("0:00");
					durationTextView.setText("-:--");
					progressBar.setProgress(0);
					progressBar.setEnabled(false);
				}

				switch (playerState) {
					case DOWNLOADING:
						if(currentPlaying != null) {
							if(Util.isWifiRequiredForDownload(context)) {
								statusTextView.setText(context.getResources().getString(R.string.download_playerstate_mobile_disabled));
							} else {
								long bytes = currentPlaying.getPartialFile().length();
								statusTextView.setText(context.getResources().getString(R.string.download_playerstate_downloading, Util.formatLocalizedBytes(bytes, context)));
							}
						}
						break;
					case PREPARING:
						statusTextView.setText(R.string.download_playerstate_buffering);
						break;
					default:
						if(currentPlaying != null) {
							String artist = "";
							if(currentPlaying.getSong().getArtist() != null) {
								artist = currentPlaying.getSong().getArtist() + " - ";
							}
							statusTextView.setText(artist + currentPlaying.getSong().getAlbum());
						} else {
							statusTextView.setText(null);
						}
						break;
				}

				switch (playerState) {
					case STARTED:
						pauseButton.setVisibility(View.VISIBLE);
						stopButton.setVisibility(View.INVISIBLE);
						startButton.setVisibility(View.INVISIBLE);
						break;
					case DOWNLOADING:
					case PREPARING:
						pauseButton.setVisibility(View.INVISIBLE);
						stopButton.setVisibility(View.VISIBLE);
						startButton.setVisibility(View.INVISIBLE);
						break;
					default:
						pauseButton.setVisibility(View.INVISIBLE);
						stopButton.setVisibility(View.INVISIBLE);
						startButton.setVisibility(View.VISIBLE);
						break;
				}

				onProgressChangedTask = null;
			}
		};
		if(onDownloadListChangedTask == null && onCurrentChangedTask == null) {
			onProgressChangedTask.execute();
		}
	}

	private void changeProgress(final int ms) {
		final DownloadService downloadService = getDownloadService();
		if(downloadService == null) {
			return;
		}

		new SilentBackgroundTask<Void>(context) {
			boolean isJukeboxEnabled;
			int msPlayed;
			Integer duration;
			PlayerState playerState;
			int seekTo;

			@Override
			protected Void doInBackground() throws Throwable {
				msPlayed = Math.max(0, downloadService.getPlayerPosition());
				duration = downloadService.getPlayerDuration();
				playerState = getDownloadService().getPlayerState();
				int msTotal = duration == null ? 0 : duration;
				if(msPlayed + ms > msTotal) {
					seekTo = msTotal;
				} else {
					seekTo = msPlayed + ms;
				}
				downloadService.seekTo(seekTo);
				return null;
			}

			@Override
			protected void done(Void result) {
				progressBar.setProgress(seekTo);
			}
		}.execute();
	}

	private void createBookmark() {
		DownloadService downloadService = getDownloadService();
		if(downloadService == null) {
			return;
		}

		final DownloadFile currentDownload = downloadService.getCurrentPlaying();
		if(currentDownload == null) {
			return;
		}

		View dialogView = context.getLayoutInflater().inflate(R.layout.create_bookmark, null);
		final EditText commentBox = (EditText)dialogView.findViewById(R.id.comment_text);

		AlertDialog.Builder builder = new AlertDialog.Builder(context);
		builder.setTitle(R.string.download_save_bookmark_title)
				.setView(dialogView)
				.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
					@Override
					public void onClick(DialogInterface dialog, int id) {
						String comment = commentBox.getText().toString();

						createBookmark(currentDownload, comment);
					}
				})
				.setNegativeButton(R.string.common_cancel, null);
		AlertDialog dialog = builder.create();
		dialog.show();
	}
	private void createBookmark(final DownloadFile currentDownload, final String comment) {
		DownloadService downloadService = getDownloadService();
		if(downloadService == null) {
			return;
		}

		final Entry currentSong = currentDownload.getSong();
		final int position = downloadService.getPlayerPosition();
		final Bookmark oldBookmark = currentSong.getBookmark();
		currentSong.setBookmark(new Bookmark(position));
		bookmarkButton.setImageResource(R.drawable.ic_menu_bookmark_selected);

		new SilentBackgroundTask<Void>(context) {
			@Override
			protected Void doInBackground() throws Throwable {
				MusicService musicService = MusicServiceFactory.getMusicService(context);
				musicService.createBookmark(currentSong, position, comment, context, null);

				new EntryInstanceUpdater(currentSong) {
					@Override
					public void update(Entry found) {
						found.setBookmark(new Bookmark(position));
					}
				}.execute();

				return null;
			}

			@Override
			protected void done(Void result) {
				Util.toast(context, R.string.download_save_bookmark);
				setControlsVisible(true);
			}

			@Override
			protected void error(Throwable error) {
				Log.w(TAG, "Failed to create bookmark", error);
				currentSong.setBookmark(oldBookmark);

				// If no bookmark at start, then return to no bookmark
				if(oldBookmark == null) {
					int bookmark;
					if(context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
						bookmark = R.drawable.ic_menu_bookmark_dark;
					} else {
						bookmark = Util.getAttribute(context, R.attr.bookmark);
					}
					bookmarkButton.setImageResource(bookmark);
				}

				String msg;
				if(error instanceof OfflineException || error instanceof ServerTooOldException) {
					msg = getErrorMessage(error);
				} else {
					msg = context.getResources().getString(R.string.download_save_bookmark_failed) + getErrorMessage(error);
				}

				Util.toast(context, msg, false);
			}
		}.execute();
	}

	@Override
	public boolean onDown(MotionEvent me) {
		setControlsVisible(true);
		return false;
	}

	@Override
	public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
		final DownloadService downloadService = getDownloadService();
		if (downloadService == null || e1 == null || e2 == null) {
			return false;
		}

		// Right to Left swipe
		int action = 0;
		if (e1.getX() - e2.getX() > swipeDistance && Math.abs(velocityX) > swipeVelocity) {
			action = ACTION_NEXT;
		}
		// Left to Right swipe
		else if (e2.getX() - e1.getX() > swipeDistance && Math.abs(velocityX) > swipeVelocity) {
			action = ACTION_PREVIOUS;
		}
		// Top to Bottom swipe
		else if (e2.getY() - e1.getY() > swipeDistance && Math.abs(velocityY) > swipeVelocity) {
			action = ACTION_FORWARD;
		}
		// Bottom to Top swipe
		else if (e1.getY() - e2.getY() > swipeDistance && Math.abs(velocityY) > swipeVelocity) {
			action = ACTION_REWIND;
		}

		if(action > 0) {
			final int performAction = action;
			warnIfStorageUnavailable();
			new SilentBackgroundTask<Void>(context) {
				@Override
				protected Void doInBackground() throws Throwable {
					switch(performAction) {
						case ACTION_NEXT:
							downloadService.next();
							break;
						case ACTION_PREVIOUS:
							downloadService.previous();
							break;
						case ACTION_FORWARD:
							downloadService.seekTo(downloadService.getPlayerPosition() + DownloadService.FAST_FORWARD);
							break;
						case ACTION_REWIND:
							downloadService.seekTo(downloadService.getPlayerPosition() - DownloadService.REWIND);
							break;
					}

					onProgressChanged();
					if(performAction == ACTION_NEXT || performAction == ACTION_PREVIOUS) {
						onCurrentChanged();
					}
					return null;
				}
			}.execute();

			return true;
		} else {
			return false;
		}
	}

	@Override
	public void onLongPress(MotionEvent e) {
	}

	@Override
	public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
		return false;
	}

	@Override
	public void onShowPress(MotionEvent e) {
	}

	@Override
	public boolean onSingleTapUp(MotionEvent e) {
		return false;
	}

	@Override
	public void onItemClicked(final DownloadFile item) {
		warnIfStorageUnavailable();
		new SilentBackgroundTask<Void>(context) {
			@Override
			protected Void doInBackground() throws Throwable {
				getDownloadService().play(item);

				onCurrentChanged();
				onProgressChanged();
				return null;
			}
		}.execute();
	}
}