package com.dougkeen.bart.activities;

import java.util.List;

import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.ServiceConnection;
import android.database.Cursor;
import android.media.MediaPlayer;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Parcelable;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.text.format.DateFormat;
import android.text.util.Linkify;
import android.util.Log;
import android.view.View;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.Checkable;

import com.WazaBe.HoloEverywhere.sherlock.SActivity;
import com.WazaBe.HoloEverywhere.widget.ListView;
import com.WazaBe.HoloEverywhere.widget.ProgressBar;
import com.WazaBe.HoloEverywhere.widget.TextView;
import com.WazaBe.HoloEverywhere.widget.Toast;
import com.actionbarsherlock.view.ActionMode;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
import com.dougkeen.bart.BartRunnerApplication;
import com.dougkeen.bart.R;
import com.dougkeen.bart.controls.Ticker;
import com.dougkeen.bart.controls.YourTrainLayout;
import com.dougkeen.bart.data.DepartureArrayAdapter;
import com.dougkeen.bart.data.RoutesColumns;
import com.dougkeen.bart.model.Constants;
import com.dougkeen.bart.model.Departure;
import com.dougkeen.bart.model.Station;
import com.dougkeen.bart.model.StationPair;
import com.dougkeen.bart.services.BoardedDepartureService;
import com.dougkeen.bart.services.EtdService;
import com.dougkeen.bart.services.EtdService.EtdServiceBinder;
import com.dougkeen.bart.services.EtdService.EtdServiceListener;
import com.dougkeen.util.Observer;
import com.dougkeen.util.WakeLocker;

public class ViewDeparturesActivity extends SActivity implements
		EtdServiceListener {

	private static final int LOADER_ID = 123;

	private Uri mUri;

	private Station mOrigin;
	private Station mDestination;

	private Departure mSelectedDeparture;

	private DepartureArrayAdapter mDeparturesAdapter;

	private TextView mEmptyView;
	private ProgressBar mProgress;

	private ActionMode mActionMode;

	private EtdService mEtdService;

	private Handler mHandler = new Handler();

	private boolean mBound = false;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		setContentView(R.layout.departures);

		final Intent intent = getIntent();

		String action = intent.getAction();

		if (Intent.ACTION_VIEW.equals(action)) {
			mUri = intent.getData();
		}

		final Uri uri = mUri;

		final BartRunnerApplication bartRunnerApplication = (BartRunnerApplication) getApplication();

		if (savedInstanceState != null
				&& savedInstanceState.containsKey("origin")
				&& savedInstanceState.containsKey("destination")) {
			mOrigin = Station.getByAbbreviation(savedInstanceState
					.getString("origin"));
			mDestination = Station.getByAbbreviation(savedInstanceState
					.getString("destination"));
			setListTitle();
		} else {
			getSupportLoaderManager().initLoader(LOADER_ID, null,
					new LoaderCallbacks<Cursor>() {
						@Override
						public Loader<Cursor> onCreateLoader(int id, Bundle args) {
							return new CursorLoader(
									ViewDeparturesActivity.this, uri,
									new String[] {
											RoutesColumns.FROM_STATION.string,
											RoutesColumns.TO_STATION.string },
									null, null, null);
						}

						@Override
						public void onLoadFinished(Loader<Cursor> loader,
								Cursor cursor) {
							if (!cursor.moveToFirst()) {
								Log.wtf(Constants.TAG,
										"Couldn't find Route record for the current Activity");
							}
							mOrigin = Station.getByAbbreviation(cursor
									.getString(0));
							mDestination = Station.getByAbbreviation(cursor
									.getString(1));
							setListTitle();
							if (mBound && mEtdService != null)
								mEtdService.registerListener(
										ViewDeparturesActivity.this, false);
							refreshBoardedDeparture();

							getSupportLoaderManager().destroyLoader(LOADER_ID);
						}

						@Override
						public void onLoaderReset(Loader<Cursor> loader) {
							// ignore
						}
					});
		}

		mEmptyView = (TextView) findViewById(android.R.id.empty);
		mEmptyView.setText(R.string.departure_wait_message);

		mProgress = (ProgressBar) findViewById(android.R.id.progress);

		mDeparturesAdapter = new DepartureArrayAdapter(this,
				R.layout.departure_listing);

		if (savedInstanceState != null) {
			if (savedInstanceState.containsKey("departures")) {
				for (Parcelable departure : savedInstanceState
						.getParcelableArray("departures")) {
					mDeparturesAdapter.add((Departure) departure);
				}
				mDeparturesAdapter.notifyDataSetChanged();
			}
			if (savedInstanceState.containsKey("selectedDeparture")) {
				mSelectedDeparture = (Departure) savedInstanceState
						.getParcelable("selectedDeparture");
			}
			if (savedInstanceState.getBoolean("hasDepartureActionMode")
					&& mSelectedDeparture != null) {
				startDepartureActionMode();
			}
			if (savedInstanceState.getBoolean("hasYourTrainActionMode")
					&& mSelectedDeparture != null) {
				((Checkable) findViewById(R.id.yourTrainSection))
						.setChecked(true);
				startYourTrainActionMode(bartRunnerApplication);
			}
		}
		setListAdapter(mDeparturesAdapter);
		final ListView listView = getListView();
		listView.setEmptyView(findViewById(android.R.id.empty));
		listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
		listView.setOnItemClickListener(mListItemClickListener);
		listView.setOnItemLongClickListener(mListItemLongClickListener);

		mMissingDepartureText = findViewById(R.id.missingDepartureText);
		mMissingDepartureText.setVisibility(View.VISIBLE);

		findViewById(R.id.yourTrainSection).setOnClickListener(
				mYourTrainSectionClickListener);

		refreshBoardedDeparture();

		getSupportActionBar().setHomeButtonEnabled(true);
		getSupportActionBar().setDisplayHomeAsUpEnabled(true);

		if (bartRunnerApplication.shouldPlayAlarmRingtone()) {
			soundTheAlarm();
		}

		if (bartRunnerApplication.isAlarmSounding()) {
			Builder builder = new AlertDialog.Builder(this);
			builder.setMessage(R.string.train_alarm_text)
					.setCancelable(false)
					.setNeutralButton(R.string.silence_alarm,
							new DialogInterface.OnClickListener() {
								@Override
								public void onClick(DialogInterface dialog,
										int which) {
									silenceAlarm();
									dialog.dismiss();
								}
							}).show();
		}
	}

	private void soundTheAlarm() {
		final BartRunnerApplication application = (BartRunnerApplication) getApplication();

		Uri alarmSound = RingtoneManager
				.getDefaultUri(RingtoneManager.TYPE_ALARM);

		if (alarmSound == null || !tryToPlayRingtone(alarmSound)) {
			alarmSound = RingtoneManager
					.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
			if (alarmSound == null || !tryToPlayRingtone(alarmSound)) {
				alarmSound = RingtoneManager
						.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
			}
		}
		if (application.getAlarmMediaPlayer() == null) {
			tryToPlayRingtone(alarmSound);
		}
		mHandler.postDelayed(new Runnable() {
			@Override
			public void run() {
				silenceAlarm();
			}
		}, 20000);

		application.setPlayAlarmRingtone(false);
		application.setAlarmSounding(true);
	}

	private boolean tryToPlayRingtone(Uri alertSound) {
		MediaPlayer mediaPlayer = MediaPlayer.create(this, alertSound);
		if (mediaPlayer == null)
			return false;
		mediaPlayer.setLooping(true);
		mediaPlayer.start();
		((BartRunnerApplication) getApplication())
				.setAlarmMediaPlayer(mediaPlayer);
		return true;
	}

	private void silenceAlarm() {
		final BartRunnerApplication application = (BartRunnerApplication) getApplication();
		final MediaPlayer mediaPlayer = application.getAlarmMediaPlayer();
		application.setAlarmSounding(false);
		application.setAlarmMediaPlayer(null);
		try {
			if (mediaPlayer != null && mediaPlayer.isPlaying()) {
				mediaPlayer.stop();
				mediaPlayer.release();
			}
		} catch (IllegalStateException e) {
			Log.e(Constants.TAG,
					"Couldn't stop media player; It was in an invalid state", e);
		}
	}

	private void setListTitle() {
		((TextView) findViewById(R.id.listTitle)).setText(mOrigin.name + " to "
				+ mDestination.name);
	}

	private ListView getListView() {
		return (ListView) findViewById(android.R.id.list);
	}

	private final ServiceConnection mConnection = new ServiceConnection() {
		@Override
		public void onServiceDisconnected(ComponentName name) {
			mEtdService = null;
			mBound = false;
		}

		@Override
		public void onServiceConnected(ComponentName name, IBinder service) {
			mEtdService = ((EtdServiceBinder) service).getService();
			mBound = true;
			if (getStationPair() != null) {
				mEtdService
						.registerListener(ViewDeparturesActivity.this, false);
			}
		}
	};

	private boolean mWasLongClick = false;

	private final AdapterView.OnItemClickListener mListItemClickListener = new AdapterView.OnItemClickListener() {
		@Override
		public void onItemClick(AdapterView<?> adapterView, View view,
				int position, long id) {
			if (mWasLongClick) {
				mWasLongClick = false;
				return;
			}

			if (mActionMode != null) {
				/*
				 * If action mode is displayed, cancel out of that
				 */
				mActionMode.finish();
				getListView().clearChoices();
			} else {
				/*
				 * Otherwise select the clicked departure as the one the user
				 * wants to board
				 */
				mSelectedDeparture = (Departure) getListAdapter().getItem(
						position);
				setBoardedDeparture(mSelectedDeparture);
			}
		}
	};

	private final AdapterView.OnItemLongClickListener mListItemLongClickListener = new AdapterView.OnItemLongClickListener() {
		@Override
		public boolean onItemLongClick(AdapterView<?> adapterView, View view,
				int position, long id) {
			mWasLongClick = true;
			mSelectedDeparture = (Departure) getListAdapter().getItem(position);
			view.setSelected(true);
			startDepartureActionMode();
			return false;
		}
	};

	private final View.OnClickListener mYourTrainSectionClickListener = new View.OnClickListener() {
		@Override
		public void onClick(View v) {
			((Checkable) v).setChecked(true);
			startYourTrainActionMode((BartRunnerApplication) getApplication());
		}
	};

	private View mMissingDepartureText;

	protected DepartureArrayAdapter getListAdapter() {
		return mDeparturesAdapter;
	}

	protected void setListAdapter(DepartureArrayAdapter adapter) {
		mDeparturesAdapter = adapter;
		getListView().setAdapter(mDeparturesAdapter);
	}

	@Override
	protected void onStop() {
		super.onStop();
		if (mEtdService != null)
			mEtdService.unregisterListener(this);
		if (mBound)
			unbindService(mConnection);
		Ticker.getInstance().stopTicking(this);
		WakeLocker.release();
	}

	@Override
	protected void onSaveInstanceState(Bundle outState) {
		super.onSaveInstanceState(outState);
		if (mOrigin != null || mDestination != null) {
			/*
			 * If origin or destination are null, this thing was never
			 * initialized in the first place, so there's really nothing to save
			 */
			Departure[] departures = new Departure[mDeparturesAdapter
					.getCount()];
			for (int i = mDeparturesAdapter.getCount() - 1; i >= 0; i--) {
				departures[i] = mDeparturesAdapter.getItem(i);
			}
			outState.putParcelableArray("departures", departures);
			outState.putParcelable("selectedDeparture", mSelectedDeparture);
			outState.putBoolean("hasDepartureActionMode",
					isDepartureActionModeActive());
			outState.putBoolean("hasYourTrainActionMode",
					isYourTrainActionModeActive());
			outState.putString("origin", mOrigin.abbreviation);
			outState.putString("destination", mDestination.abbreviation);
		}
	}

	@Override
	protected void onStart() {
		super.onStart();
		bindService(new Intent(this, EtdService.class), mConnection,
				Context.BIND_AUTO_CREATE);
		Ticker.getInstance().startTicking(this);
	}

	@Override
	public void onWindowFocusChanged(boolean hasFocus) {
		super.onWindowFocusChanged(hasFocus);
		if (hasFocus) {
			getWindow()
					.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
			Ticker.getInstance().startTicking(this);
			refreshBoardedDeparture();
		}
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		MenuInflater inflater = getSupportMenuInflater();
		inflater.inflate(R.menu.route_menu, menu);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		int itemId = item.getItemId();
		if (itemId == android.R.id.home) {
			Intent intent = new Intent(Intent.ACTION_VIEW,
					Constants.FAVORITE_CONTENT_URI);
			intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
			startActivity(intent);
			return true;
		} else if (itemId == R.id.view_on_bart_site_button) {
			startActivity(new Intent(
					Intent.ACTION_VIEW,
					Uri.parse("http://m.bart.gov/schedules/qp_results.aspx?type=departure&date=today&time="
							+ DateFormat.format("h:mmaa",
									System.currentTimeMillis())
							+ "&orig="
							+ mOrigin.abbreviation
							+ "&dest="
							+ mDestination.abbreviation)));
			return true;
		} else if (itemId == R.id.view_system_map_button) {
			startActivity(new Intent(this, ViewMapActivity.class));
			return true;
		} else {
			return super.onOptionsItemSelected(item);
		}
	}

	private void refreshBoardedDeparture() {
		final Departure boardedDeparture = ((BartRunnerApplication) getApplication())
				.getBoardedDeparture();
		final YourTrainLayout yourTrainSection = (YourTrainLayout) findViewById(R.id.yourTrainSection);
		int currentVisibility = yourTrainSection.getVisibility();

		final boolean boardedDepartureDoesNotApply = boardedDeparture == null
				|| boardedDeparture.getStationPair() == null
				|| !boardedDeparture.getStationPair().equals(getStationPair());

		if (boardedDepartureDoesNotApply) {
			if (currentVisibility != View.GONE) {
				hideYourTrainSection();
			}
			return;
		}

		yourTrainSection.updateFromDeparture(boardedDeparture);

		if (currentVisibility != View.VISIBLE) {
			showYourTrainSection(yourTrainSection);
		}

		if (mActionMode == null) {
			for (int i = getListAdapter().getCount() - 1; i >= 0; i--) {
				if (getListAdapter().getItem(i).equals(boardedDeparture)) {
					getListView().setSelection(i);
					final Checkable listItem = (Checkable) getListView()
							.getChildAt(i);
					if (listItem != null) {
						listItem.setChecked(true);
					}
					break;
				}
			}
			getListView().requestLayout();
		}

	}

	private void setBoardedDeparture(Departure selectedDeparture) {
		final BartRunnerApplication application = (BartRunnerApplication) getApplication();
		selectedDeparture.setPassengerDestination(mDestination);
		application.setBoardedDeparture(selectedDeparture);
		refreshBoardedDeparture();

		// Start the notification service
		startService(new Intent(ViewDeparturesActivity.this,
				BoardedDepartureService.class));
	}

	private void startDepartureActionMode() {
		if (mActionMode == null)
			mActionMode = startActionMode(new DepartureActionMode());
		mActionMode.setTitle(mSelectedDeparture.getTrainDestinationName());
		mActionMode.setSubtitle(mSelectedDeparture.getTrainLengthText());
	}

	private class DepartureActionMode implements ActionMode.Callback {

		@Override
		public boolean onCreateActionMode(ActionMode mode, Menu menu) {
			mode.getMenuInflater().inflate(R.menu.departure_context_menu, menu);
			return true;
		}

		@Override
		public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
			((Checkable) findViewById(R.id.yourTrainSection)).setChecked(false);
			return false;
		}

		@Override
		public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
			if (item.getItemId() == R.id.boardTrain) {
				setBoardedDeparture(mSelectedDeparture);

				mode.finish();
				return true;
			}
			return false;
		}

		@Override
		public void onDestroyActionMode(ActionMode mode) {
			getListView().clearChoices();
			getListView().requestLayout();
			mActionMode = null;
		}

	}

	private void startYourTrainActionMode(BartRunnerApplication application) {
		if (mActionMode == null)
			mActionMode = startActionMode(new YourTrainActionMode());
		mActionMode.setTitle(R.string.your_train);
		if (application.getBoardedDeparture() != null
				&& application.getBoardedDeparture().isAlarmPending()) {
			int leadTime = application.getBoardedDeparture()
					.getAlarmLeadTimeMinutes();
			mActionMode.setSubtitle(getAlarmSubtitle(leadTime));
		} else {
			mActionMode.setSubtitle(null);
		}
	}

	private String getAlarmSubtitle(int leadTime) {
		if (leadTime == 0)
			return null;
		return "Alarm " + leadTime + " minute" + (leadTime != 1 ? "s" : "")
				+ " before departure";
	}

	private class YourTrainActionMode implements ActionMode.Callback {
		private Observer<Boolean> mAlarmPendingObserver;
		private Observer<Integer> mAlarmLeadTimeObserver;

		@Override
		public boolean onCreateActionMode(ActionMode mode, Menu menu) {
			// Suppress new "your train" selections
			getListView().setChoiceMode(ListView.CHOICE_MODE_NONE);

			mode.getMenuInflater()
					.inflate(R.menu.your_train_context_menu, menu);
			final MenuItem cancelAlarmButton = menu
					.findItem(R.id.cancel_alarm_button);
			final MenuItem setAlarmButton = menu
					.findItem(R.id.set_alarm_button);
			final BartRunnerApplication application = (BartRunnerApplication) getApplication();
			final Departure boardedDeparture = application
					.getBoardedDeparture();
			if (boardedDeparture.isAlarmPending()) {
				cancelAlarmButton.setVisible(true);
				setAlarmButton.setIcon(R.drawable.ic_action_alarm);
			} else if (boardedDeparture.getMeanSecondsLeft() > 60) {
				setAlarmButton.setIcon(R.drawable.ic_action_add_alarm);
			}

			// Don't allow alarm setting if train is about to leave
			if (boardedDeparture.getMeanSecondsLeft() / 60 < 1) {
				menu.findItem(R.id.set_alarm_button).setVisible(false);
			}

			mAlarmPendingObserver = new Observer<Boolean>() {
				@Override
				public void onUpdate(final Boolean newValue) {
					runOnUiThread(new Runnable() {
						@Override
						public void run() {
							cancelAlarmButton.setVisible(newValue);
							if (newValue) {
								mActionMode
										.setSubtitle(getAlarmSubtitle(boardedDeparture
												.getAlarmLeadTimeMinutes()));
								setAlarmButton
										.setIcon(R.drawable.ic_action_alarm);
							} else {
								mActionMode.setSubtitle(null);
								setAlarmButton
										.setIcon(R.drawable.ic_action_add_alarm);
							}
						}
					});
				}
			};
			mAlarmLeadTimeObserver = new Observer<Integer>() {
				@Override
				public void onUpdate(final Integer newValue) {
					runOnUiThread(new Runnable() {
						@Override
						public void run() {
							mActionMode.setSubtitle(getAlarmSubtitle(newValue));
						}
					});
				}
			};
			boardedDeparture.getAlarmPendingObservable().registerObserver(
					mAlarmPendingObserver);
			boardedDeparture.getAlarmLeadTimeMinutesObservable()
					.registerObserver(mAlarmLeadTimeObserver);
			return true;
		}

		@Override
		public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
			getListView().clearChoices();
			getListView().requestLayout();
			return false;
		}

		@Override
		public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
			final int itemId = item.getItemId();
			if (itemId == R.id.set_alarm_button) {
				BartRunnerApplication application = (BartRunnerApplication) getApplication();

				// Don't prompt for alarm if train is about to leave
				if (application.getBoardedDeparture().getMeanSecondsLeft() > 60) {
					new TrainAlarmDialogFragment()
							.show(getSupportFragmentManager()
									.beginTransaction());
				}

				return true;
			} else if (itemId == R.id.cancel_alarm_button) {
				Intent intent = new Intent(ViewDeparturesActivity.this,
						BoardedDepartureService.class);
				intent.putExtra("cancelNotifications", true);
				startService(intent);
				return true;
			} else if (itemId == R.id.delete) {
				Intent intent = new Intent(ViewDeparturesActivity.this,
						BoardedDepartureService.class);
				intent.putExtra("clearBoardedDeparture", true);
				startService(intent);
				hideYourTrainSection();
				mode.finish();
				return true;
			}
			return false;
		}

		@Override
		public void onDestroyActionMode(ActionMode mode) {
			((Checkable) findViewById(R.id.yourTrainSection)).setChecked(false);

			final BartRunnerApplication application = (BartRunnerApplication) getApplication();
			final Departure boardedDeparture = application
					.getBoardedDeparture();
			if (boardedDeparture != null) {
				boardedDeparture.getAlarmPendingObservable()
						.unregisterObserver(mAlarmPendingObserver);
				boardedDeparture.getAlarmLeadTimeMinutesObservable()
						.unregisterObserver(mAlarmLeadTimeObserver);
			}

			mAlarmPendingObserver = null;
			mAlarmLeadTimeObserver = null;
			mActionMode = null;

			// Enable new "your train" selections
			getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
		}
	}

	@Override
	public void onETDChanged(final List<Departure> departures) {
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				if (departures.isEmpty()) {
					final TextView textView = mEmptyView;
					textView.setText(R.string.no_data_message);
					mProgress.setVisibility(View.GONE);
					Linkify.addLinks(textView, Linkify.WEB_URLS);
				} else {
					// TODO: Figure out why Ticker occasionally stops
					Ticker.getInstance().startTicking(
							ViewDeparturesActivity.this);

					// Merge lists
					if (mDeparturesAdapter.getCount() > 0) {
						int adapterIndex = -1;
						for (Departure departure : departures) {
							adapterIndex++;
							Departure existingDeparture = null;
							if (adapterIndex < mDeparturesAdapter.getCount()) {
								existingDeparture = mDeparturesAdapter
										.getItem(adapterIndex);
							}
							while (existingDeparture != null
									&& !departure.equals(existingDeparture)) {
								mDeparturesAdapter.remove(existingDeparture);
								if (adapterIndex < mDeparturesAdapter
										.getCount()) {
									existingDeparture = mDeparturesAdapter
											.getItem(adapterIndex);
								} else {
									existingDeparture = null;
								}
							}
							if (existingDeparture != null) {
								existingDeparture.mergeEstimate(departure);
							} else {
								mDeparturesAdapter.add(departure);
								existingDeparture = departure;
							}
						}
					} else {
						final DepartureArrayAdapter listAdapter = getListAdapter();
						listAdapter.clear();
						for (Departure departure : departures) {
							listAdapter.add(departure);
						}
					}

					refreshBoardedDeparture();

					getListAdapter().notifyDataSetChanged();
				}
			}
		});
	}

	@Override
	public void onError(final String errorMessage) {
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				Toast.makeText(ViewDeparturesActivity.this, errorMessage,
						Toast.LENGTH_LONG).show();
			}
		});
	}

	@Override
	public void onRequestStarted() {
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				mProgress.setVisibility(View.VISIBLE);
			}
		});
	}

	@Override
	public void onRequestEnded() {
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				mProgress.setVisibility(View.GONE);
			}
		});
	}

	@Override
	public StationPair getStationPair() {
		if (mOrigin == null || mDestination == null)
			return null;
		return new StationPair(mOrigin, mDestination);
	}

	private void hideYourTrainSection() {
		findViewById(R.id.yourTrainSection).setVisibility(View.GONE);
	}

	private void showYourTrainSection(final YourTrainLayout yourTrainSection) {
		yourTrainSection.setVisibility(View.VISIBLE);
	}

	private boolean isYourTrainActionModeActive() {
		return mActionMode != null
				&& mActionMode.getTitle()
						.equals(getString(R.string.your_train));
	}

	private boolean isDepartureActionModeActive() {
		return mActionMode != null
				&& !mActionMode.getTitle().equals(
						getString(R.string.your_train));
	}
}