1package eu.siacs.conversations.services;
  2
  3import android.app.Notification;
  4import android.app.PendingIntent;
  5import android.content.Intent;
  6import android.content.SharedPreferences;
  7import android.graphics.Bitmap;
  8import android.net.Uri;
  9import android.os.Build;
 10import android.os.SystemClock;
 11import android.support.v4.app.NotificationCompat;
 12import android.support.v4.app.NotificationCompat.BigPictureStyle;
 13import android.support.v4.app.NotificationCompat.Builder;
 14import android.support.v4.app.NotificationManagerCompat;
 15import android.support.v4.app.RemoteInput;
 16import android.text.Html;
 17import android.util.DisplayMetrics;
 18import android.util.Log;
 19
 20import java.io.FileNotFoundException;
 21import java.util.ArrayList;
 22import java.util.Calendar;
 23import java.util.LinkedHashMap;
 24import java.util.List;
 25import java.util.Map;
 26import java.util.regex.Matcher;
 27import java.util.regex.Pattern;
 28
 29import eu.siacs.conversations.Config;
 30import eu.siacs.conversations.R;
 31import eu.siacs.conversations.entities.Account;
 32import eu.siacs.conversations.entities.Contact;
 33import eu.siacs.conversations.entities.Conversation;
 34import eu.siacs.conversations.entities.Message;
 35import eu.siacs.conversations.ui.ConversationActivity;
 36import eu.siacs.conversations.ui.ManageAccountActivity;
 37import eu.siacs.conversations.ui.SettingsActivity;
 38import eu.siacs.conversations.ui.TimePreference;
 39import eu.siacs.conversations.utils.GeoHelper;
 40import eu.siacs.conversations.utils.UIHelper;
 41
 42public class NotificationService {
 43
 44	private static final String CONVERSATIONS_GROUP = "eu.siacs.conversations";
 45	private final XmppConnectionService mXmppConnectionService;
 46
 47	private final LinkedHashMap<String, ArrayList<Message>> notifications = new LinkedHashMap<>();
 48
 49	public static final int NOTIFICATION_ID = 0x2342;
 50	public static final int FOREGROUND_NOTIFICATION_ID = 0x8899;
 51	public static final int ERROR_NOTIFICATION_ID = 0x5678;
 52
 53	private Conversation mOpenConversation;
 54	private boolean mIsInForeground;
 55	private long mLastNotification;
 56
 57	public NotificationService(final XmppConnectionService service) {
 58		this.mXmppConnectionService = service;
 59	}
 60
 61	public boolean notify(final Message message) {
 62		return message.getStatus() == Message.STATUS_RECEIVED
 63				&& notificationsEnabled()
 64				&& !message.getConversation().isMuted()
 65				&& (message.getConversation().alwaysNotify() || wasHighlightedOrPrivate(message))
 66				&& (!message.getConversation().isWithStranger() || notificationsFromStrangers())
 67		;
 68	}
 69
 70	public boolean notificationsEnabled() {
 71		return mXmppConnectionService.getPreferences().getBoolean("show_notification", true);
 72	}
 73
 74	private boolean notificationsFromStrangers() {
 75		return mXmppConnectionService.getPreferences().getBoolean("notifications_from_strangers",
 76				mXmppConnectionService.getResources().getBoolean(R.bool.notifications_from_strangers));
 77	}
 78
 79	public boolean isQuietHours() {
 80		if (!mXmppConnectionService.getPreferences().getBoolean("enable_quiet_hours", false)) {
 81			return false;
 82		}
 83		final long startTime = mXmppConnectionService.getPreferences().getLong("quiet_hours_start", TimePreference.DEFAULT_VALUE) % Config.MILLISECONDS_IN_DAY;
 84		final long endTime = mXmppConnectionService.getPreferences().getLong("quiet_hours_end", TimePreference.DEFAULT_VALUE) % Config.MILLISECONDS_IN_DAY;
 85		final long nowTime = Calendar.getInstance().getTimeInMillis() % Config.MILLISECONDS_IN_DAY;
 86
 87		if (endTime < startTime) {
 88			return nowTime > startTime || nowTime < endTime;
 89		} else {
 90			return nowTime > startTime && nowTime < endTime;
 91		}
 92	}
 93
 94	public void pushFromBacklog(final Message message) {
 95		if (notify(message)) {
 96			synchronized (notifications) {
 97				pushToStack(message);
 98			}
 99		}
100	}
101
102	public void pushFromDirectReply(final Message message) {
103		synchronized (notifications) {
104			pushToStack(message);
105			updateNotification(false);
106		}
107	}
108
109	public void finishBacklog(boolean notify, Account account) {
110		synchronized (notifications) {
111			mXmppConnectionService.updateUnreadCountBadge();
112			if (account == null || !notify) {
113				updateNotification(notify);
114			} else {
115				boolean hasPendingMessages = false;
116				for(ArrayList<Message> messages : notifications.values()) {
117					if (messages.size() > 0 && messages.get(0).getConversation().getAccount() == account) {
118						hasPendingMessages = true;
119						break;
120					}
121				}
122				updateNotification(hasPendingMessages);
123			}
124		}
125	}
126
127	public void finishBacklog(boolean notify) {
128		finishBacklog(notify,null);
129	}
130
131	private void pushToStack(final Message message) {
132		final String conversationUuid = message.getConversationUuid();
133		if (notifications.containsKey(conversationUuid)) {
134			notifications.get(conversationUuid).add(message);
135		} else {
136			final ArrayList<Message> mList = new ArrayList<>();
137			mList.add(message);
138			notifications.put(conversationUuid, mList);
139		}
140	}
141
142	public void push(final Message message) {
143		mXmppConnectionService.updateUnreadCountBadge();
144		if (!notify(message)) {
145			Log.d(Config.LOGTAG,message.getConversation().getAccount().getJid().toBareJid()+": suppressing notification because turned off");
146			return;
147		}
148		final boolean isScreenOn = mXmppConnectionService.isInteractive();
149		if (this.mIsInForeground && isScreenOn && this.mOpenConversation == message.getConversation()) {
150			Log.d(Config.LOGTAG,message.getConversation().getAccount().getJid().toBareJid()+": suppressing notification because conversation is open");
151			return;
152		}
153		synchronized (notifications) {
154			pushToStack(message);
155			final Account account = message.getConversation().getAccount();
156			final boolean doNotify = (!(this.mIsInForeground && this.mOpenConversation == null) || !isScreenOn)
157					&& !account.inGracePeriod()
158					&& !this.inMiniGracePeriod(account);
159			updateNotification(doNotify);
160		}
161	}
162
163	public void clear() {
164		synchronized (notifications) {
165			for(ArrayList<Message> messages : notifications.values()) {
166				markAsReadIfHasDirectReply(messages);
167			}
168			notifications.clear();
169			updateNotification(false);
170		}
171	}
172
173	public void clear(final Conversation conversation) {
174		synchronized (notifications) {
175			markAsReadIfHasDirectReply(conversation);
176			notifications.remove(conversation.getUuid());
177			final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
178			notificationManager.cancel(conversation.getUuid(), NOTIFICATION_ID);
179			updateNotification(false);
180		}
181	}
182
183	private void markAsReadIfHasDirectReply(final Conversation conversation) {
184		markAsReadIfHasDirectReply(notifications.get(conversation.getUuid()));
185	}
186
187	private void markAsReadIfHasDirectReply(final ArrayList<Message> messages) {
188		if (messages != null && messages.size() > 0) {
189			Message last = messages.get(messages.size() - 1);
190			if (last.getStatus() != Message.STATUS_RECEIVED) {
191				mXmppConnectionService.markRead(last.getConversation(), false);
192			}
193		}
194	}
195
196	private void setNotificationColor(final Builder mBuilder) {
197		mBuilder.setColor(mXmppConnectionService.getResources().getColor(R.color.primary500));
198	}
199
200	public void updateNotification(final boolean notify) {
201		final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
202		final SharedPreferences preferences = mXmppConnectionService.getPreferences();
203
204		if (notifications.size() == 0) {
205			notificationManager.cancel(NOTIFICATION_ID);
206		} else {
207			if (notify) {
208				this.markLastNotification();
209			}
210			final Builder mBuilder;
211			if (notifications.size() == 1 && Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
212				mBuilder = buildSingleConversations(notifications.values().iterator().next());
213				modifyForSoundVibrationAndLight(mBuilder, notify, preferences);
214				notificationManager.notify(NOTIFICATION_ID, mBuilder.build());
215			} else {
216				mBuilder = buildMultipleConversation();
217				modifyForSoundVibrationAndLight(mBuilder, notify, preferences);
218				notificationManager.notify(NOTIFICATION_ID, mBuilder.build());
219				for(Map.Entry<String,ArrayList<Message>> entry : notifications.entrySet()) {
220					Builder singleBuilder = buildSingleConversations(entry.getValue());
221					singleBuilder.setGroup(CONVERSATIONS_GROUP);
222					modifyForSoundVibrationAndLight(singleBuilder,notify,preferences);
223					notificationManager.notify(entry.getKey(), NOTIFICATION_ID ,singleBuilder.build());
224				}
225			}
226		}
227	}
228
229
230	private void modifyForSoundVibrationAndLight(Builder mBuilder, boolean notify, SharedPreferences preferences) {
231		final String ringtone = preferences.getString("notification_ringtone", null);
232		final boolean vibrate = preferences.getBoolean("vibrate_on_notification", true);
233		final boolean led = preferences.getBoolean("led", true);
234		if (notify && !isQuietHours()) {
235			if (vibrate) {
236				final int dat = 70;
237				final long[] pattern = {0, 3 * dat, dat, dat};
238				mBuilder.setVibrate(pattern);
239			} else {
240				mBuilder.setVibrate(new long[]{0});
241			}
242			if (ringtone != null) {
243				mBuilder.setSound(Uri.parse(ringtone));
244			}
245		}
246		if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
247			mBuilder.setCategory(Notification.CATEGORY_MESSAGE);
248		}
249		mBuilder.setPriority(notify ? NotificationCompat.PRIORITY_DEFAULT : NotificationCompat.PRIORITY_LOW);
250		setNotificationColor(mBuilder);
251		mBuilder.setDefaults(0);
252		if (led) {
253			mBuilder.setLights(0xff00FF00, 2000, 3000);
254		}
255	}
256
257	private Builder buildMultipleConversation() {
258		final Builder mBuilder = new NotificationCompat.Builder(
259				mXmppConnectionService);
260		final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
261		style.setBigContentTitle(notifications.size()
262				+ " "
263				+ mXmppConnectionService
264				.getString(R.string.unread_conversations));
265		final StringBuilder names = new StringBuilder();
266		Conversation conversation = null;
267		for (final ArrayList<Message> messages : notifications.values()) {
268			if (messages.size() > 0) {
269				conversation = messages.get(0).getConversation();
270				final String name = conversation.getName();
271				if (Config.HIDE_MESSAGE_TEXT_IN_NOTIFICATION) {
272					int count = messages.size();
273					style.addLine(Html.fromHtml("<b>"+name+"</b>: "+mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages,count,count)));
274				} else {
275					style.addLine(Html.fromHtml("<b>" + name + "</b>: "
276							+ UIHelper.getMessagePreview(mXmppConnectionService, messages.get(0)).first));
277				}
278				names.append(name);
279				names.append(", ");
280			}
281		}
282		if (names.length() >= 2) {
283			names.delete(names.length() - 2, names.length());
284		}
285		mBuilder.setContentTitle(notifications.size()
286				+ " "
287				+ mXmppConnectionService
288				.getString(R.string.unread_conversations));
289		mBuilder.setContentText(names.toString());
290		mBuilder.setStyle(style);
291		if (conversation != null) {
292			mBuilder.setContentIntent(createContentIntent(conversation));
293		}
294		mBuilder.setGroupSummary(true);
295		mBuilder.setGroup(CONVERSATIONS_GROUP);
296		mBuilder.setDeleteIntent(createDeleteIntent(null));
297		mBuilder.setSmallIcon(R.drawable.ic_notification);
298		return mBuilder;
299	}
300
301	private Builder buildSingleConversations(final ArrayList<Message> messages) {
302		final Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
303		if (messages.size() >= 1) {
304			final Conversation conversation = messages.get(0).getConversation();
305			mBuilder.setLargeIcon(mXmppConnectionService.getAvatarService()
306					.get(conversation, getPixel(64)));
307			mBuilder.setContentTitle(conversation.getName());
308			if (Config.HIDE_MESSAGE_TEXT_IN_NOTIFICATION) {
309				int count = messages.size();
310				mBuilder.setContentText(mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages,count,count));
311			} else {
312				Message message;
313				if ((message = getImage(messages)) != null) {
314					modifyForImage(mBuilder, message, messages);
315				} else {
316					modifyForTextOnly(mBuilder, messages);
317				}
318				RemoteInput remoteInput = new RemoteInput.Builder("text_reply").setLabel(UIHelper.getMessageHint(mXmppConnectionService, conversation)).build();
319				NotificationCompat.Action replyAction = new NotificationCompat.Action.Builder(R.drawable.ic_send_text_offline, "Reply", createReplyIntent(conversation, false)).addRemoteInput(remoteInput).build();
320				NotificationCompat.Action wearReplyAction = new NotificationCompat.Action.Builder(R.drawable.ic_send_text_offline, "Reply", createReplyIntent(conversation, true)).addRemoteInput(remoteInput).build();
321				mBuilder.extend(new NotificationCompat.WearableExtender().addAction(wearReplyAction));
322				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
323					mBuilder.addAction(replyAction);
324				}
325				if ((message = getFirstDownloadableMessage(messages)) != null) {
326					mBuilder.addAction(
327							Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ?
328									R.drawable.ic_file_download_white_24dp : R.drawable.ic_action_download,
329							mXmppConnectionService.getResources().getString(R.string.download_x_file,
330									UIHelper.getFileDescriptionString(mXmppConnectionService, message)),
331							createDownloadIntent(message)
332					);
333				}
334				if ((message = getFirstLocationMessage(messages)) != null) {
335					mBuilder.addAction(R.drawable.ic_room_white_24dp,
336							mXmppConnectionService.getString(R.string.show_location),
337							createShowLocationIntent(message));
338				}
339			}
340			if (conversation.getMode() == Conversation.MODE_SINGLE) {
341				Contact contact = conversation.getContact();
342				Uri systemAccount = contact.getSystemAccount();
343				if (systemAccount != null) {
344					mBuilder.addPerson(systemAccount.toString());
345				}
346			}
347			mBuilder.setWhen(conversation.getLatestMessage().getTimeSent());
348			mBuilder.setSmallIcon(R.drawable.ic_notification);
349			mBuilder.setDeleteIntent(createDeleteIntent(conversation));
350			mBuilder.setContentIntent(createContentIntent(conversation));
351		}
352		return mBuilder;
353	}
354
355	private void modifyForImage(final Builder builder, final Message message,
356								final ArrayList<Message> messages) {
357		try {
358			final Bitmap bitmap = mXmppConnectionService.getFileBackend()
359					.getThumbnail(message, getPixel(288), false);
360			final ArrayList<Message> tmp = new ArrayList<>();
361			for (final Message msg : messages) {
362				if (msg.getType() == Message.TYPE_TEXT
363						&& msg.getTransferable() == null) {
364					tmp.add(msg);
365				}
366			}
367			final BigPictureStyle bigPictureStyle = new NotificationCompat.BigPictureStyle();
368			bigPictureStyle.bigPicture(bitmap);
369			if (tmp.size() > 0) {
370				CharSequence text = getMergedBodies(tmp);
371				bigPictureStyle.setSummaryText(text);
372				builder.setContentText(text);
373			} else {
374				builder.setContentText(mXmppConnectionService.getString(
375						R.string.received_x_file,
376						UIHelper.getFileDescriptionString(mXmppConnectionService, message)));
377			}
378			builder.setStyle(bigPictureStyle);
379		} catch (final FileNotFoundException e) {
380			modifyForTextOnly(builder, messages);
381		}
382	}
383
384	private void modifyForTextOnly(final Builder builder, final ArrayList<Message> messages) {
385		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
386			NotificationCompat.MessagingStyle messagingStyle = new NotificationCompat.MessagingStyle(mXmppConnectionService.getString(R.string.me));
387			Conversation conversation = messages.get(0).getConversation();
388			if (conversation.getMode() == Conversation.MODE_MULTI) {
389				messagingStyle.setConversationTitle(conversation.getName());
390			}
391			for (Message message : messages) {
392				String sender = message.getStatus() == Message.STATUS_RECEIVED ? UIHelper.getMessageDisplayName(message) : null;
393				messagingStyle.addMessage(UIHelper.getMessagePreview(mXmppConnectionService,message).first, message.getTimeSent(), sender);
394			}
395			builder.setStyle(messagingStyle);
396		} else {
397			builder.setStyle(new NotificationCompat.BigTextStyle().bigText(getMergedBodies(messages)));
398			builder.setContentText(UIHelper.getMessagePreview(mXmppConnectionService, messages.get((messages.size()-1))).first);
399		}
400	}
401
402	private Message getImage(final Iterable<Message> messages) {
403		Message image = null;
404		for (final Message message : messages) {
405			if (message.getStatus() != Message.STATUS_RECEIVED) {
406				return null;
407			}
408			if (message.getType() != Message.TYPE_TEXT
409					&& message.getTransferable() == null
410					&& message.getEncryption() != Message.ENCRYPTION_PGP
411					&& message.getFileParams().height > 0) {
412				image = message;
413			}
414		}
415		return image;
416	}
417
418	private Message getFirstDownloadableMessage(final Iterable<Message> messages) {
419		for (final Message message : messages) {
420			if (message.getTransferable() != null
421					&& (message.getType() == Message.TYPE_FILE
422							|| message.getType() == Message.TYPE_IMAGE
423							|| message.treatAsDownloadable() != Message.Decision.NEVER)) {
424				return message;
425			}
426		}
427		return null;
428	}
429
430	private Message getFirstLocationMessage(final Iterable<Message> messages) {
431		for (final Message message : messages) {
432			if (GeoHelper.isGeoUri(message.getBody())) {
433				return message;
434			}
435		}
436		return null;
437	}
438
439	private CharSequence getMergedBodies(final ArrayList<Message> messages) {
440		final StringBuilder text = new StringBuilder();
441		for (int i = 0; i < messages.size(); ++i) {
442			text.append(UIHelper.getMessagePreview(mXmppConnectionService, messages.get(i)).first);
443			if (i != messages.size() - 1) {
444				text.append("\n");
445			}
446		}
447		return text.toString();
448	}
449
450	private PendingIntent createShowLocationIntent(final Message message) {
451		Iterable<Intent> intents = GeoHelper.createGeoIntentsFromMessage(message);
452		for (Intent intent : intents) {
453			if (intent.resolveActivity(mXmppConnectionService.getPackageManager()) != null) {
454				return PendingIntent.getActivity(mXmppConnectionService, 18, intent, PendingIntent.FLAG_UPDATE_CURRENT);
455			}
456		}
457		return createOpenConversationsIntent();
458	}
459
460	private PendingIntent createContentIntent(final String conversationUuid, final String downloadMessageUuid) {
461		final Intent viewConversationIntent = new Intent(mXmppConnectionService,ConversationActivity.class);
462		viewConversationIntent.setAction(ConversationActivity.ACTION_VIEW_CONVERSATION);
463		viewConversationIntent.putExtra(ConversationActivity.CONVERSATION, conversationUuid);
464		if (downloadMessageUuid != null) {
465			viewConversationIntent.putExtra(ConversationActivity.EXTRA_DOWNLOAD_UUID, downloadMessageUuid);
466			return PendingIntent.getActivity(mXmppConnectionService,
467					conversationUuid.hashCode() % 389782,
468					viewConversationIntent,
469					PendingIntent.FLAG_UPDATE_CURRENT);
470		} else {
471			return PendingIntent.getActivity(mXmppConnectionService,
472					conversationUuid.hashCode() % 936236,
473					viewConversationIntent,
474					PendingIntent.FLAG_UPDATE_CURRENT);
475		}
476	}
477
478	private PendingIntent createDownloadIntent(final Message message) {
479		return createContentIntent(message.getConversationUuid(), message.getUuid());
480	}
481
482	private PendingIntent createContentIntent(final Conversation conversation) {
483		return createContentIntent(conversation.getUuid(), null);
484	}
485
486	private PendingIntent createDeleteIntent(Conversation conversation) {
487		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
488		intent.setAction(XmppConnectionService.ACTION_CLEAR_NOTIFICATION);
489		if (conversation != null) {
490			intent.putExtra("uuid", conversation.getUuid());
491			return PendingIntent.getService(mXmppConnectionService, conversation.getUuid().hashCode() % 247527, intent, 0);
492		}
493		return PendingIntent.getService(mXmppConnectionService, 0, intent, 0);
494	}
495
496	private PendingIntent createReplyIntent(Conversation conversation, boolean dismissAfterReply) {
497		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
498		intent.setAction(XmppConnectionService.ACTION_REPLY_TO_CONVERSATION);
499		intent.putExtra("uuid",conversation.getUuid());
500		intent.putExtra("dismiss_notification",dismissAfterReply);
501		int id =  conversation.getUuid().hashCode() % (dismissAfterReply ? 402359 : 426583);
502		return PendingIntent.getService(mXmppConnectionService, id, intent, 0);
503	}
504
505	private PendingIntent createDisableForeground() {
506		final Intent intent = new Intent(mXmppConnectionService,
507				XmppConnectionService.class);
508		intent.setAction(XmppConnectionService.ACTION_DISABLE_FOREGROUND);
509		return PendingIntent.getService(mXmppConnectionService, 34, intent, 0);
510	}
511
512	private PendingIntent createTryAgainIntent() {
513		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
514		intent.setAction(XmppConnectionService.ACTION_TRY_AGAIN);
515		return PendingIntent.getService(mXmppConnectionService, 45, intent, 0);
516	}
517
518	private PendingIntent createDismissErrorIntent() {
519		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
520		intent.setAction(XmppConnectionService.ACTION_DISMISS_ERROR_NOTIFICATIONS);
521		return PendingIntent.getService(mXmppConnectionService, 69, intent, 0);
522	}
523
524	private boolean wasHighlightedOrPrivate(final Message message) {
525		final String nick = message.getConversation().getMucOptions().getActualNick();
526		final Pattern highlight = generateNickHighlightPattern(nick);
527		if (message.getBody() == null || nick == null) {
528			return false;
529		}
530		final Matcher m = highlight.matcher(message.getBody());
531		return (m.find() || message.getType() == Message.TYPE_PRIVATE);
532	}
533
534	public static Pattern generateNickHighlightPattern(final String nick) {
535		// We expect a word boundary, i.e. space or start of string, followed by
536		// the
537		// nick (matched in case-insensitive manner), followed by optional
538		// punctuation (for example "bob: i disagree" or "how are you alice?"),
539		// followed by another word boundary.
540		return Pattern.compile("\\b" + Pattern.quote(nick) + "\\p{Punct}?\\b",
541				Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE);
542	}
543
544	public void setOpenConversation(final Conversation conversation) {
545		this.mOpenConversation = conversation;
546	}
547
548	public void setIsInForeground(final boolean foreground) {
549		this.mIsInForeground = foreground;
550	}
551
552	private int getPixel(final int dp) {
553		final DisplayMetrics metrics = mXmppConnectionService.getResources()
554				.getDisplayMetrics();
555		return ((int) (dp * metrics.density));
556	}
557
558	private void markLastNotification() {
559		this.mLastNotification = SystemClock.elapsedRealtime();
560	}
561
562	private boolean inMiniGracePeriod(final Account account) {
563		final int miniGrace = account.getStatus() == Account.State.ONLINE ? Config.MINI_GRACE_PERIOD
564				: Config.MINI_GRACE_PERIOD * 2;
565		return SystemClock.elapsedRealtime() < (this.mLastNotification + miniGrace);
566	}
567
568	public Notification createForegroundNotification() {
569		final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
570
571		mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.conversations_foreground_service));
572		if (Config.SHOW_CONNECTED_ACCOUNTS) {
573			List<Account> accounts = mXmppConnectionService.getAccounts();
574			int enabled = 0;
575			int connected = 0;
576			for (Account account : accounts) {
577				if (account.isOnlineAndConnected()) {
578					connected++;
579					enabled++;
580				} else if (!account.isOptionSet(Account.OPTION_DISABLED)) {
581					enabled++;
582				}
583			}
584			mBuilder.setContentText(mXmppConnectionService.getString(R.string.connected_accounts, connected, enabled));
585		} else {
586			mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_open_conversations));
587		}
588		mBuilder.setContentIntent(createOpenConversationsIntent());
589		mBuilder.setWhen(0);
590		mBuilder.setPriority(Config.SHOW_CONNECTED_ACCOUNTS ? NotificationCompat.PRIORITY_DEFAULT : NotificationCompat.PRIORITY_MIN);
591		mBuilder.setSmallIcon(R.drawable.ic_link_white_24dp);
592		if (Config.SHOW_DISABLE_FOREGROUND) {
593			final int cancelIcon;
594			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
595				mBuilder.setCategory(Notification.CATEGORY_SERVICE);
596				cancelIcon = R.drawable.ic_cancel_white_24dp;
597			} else {
598				cancelIcon = R.drawable.ic_action_cancel;
599			}
600			mBuilder.addAction(cancelIcon,
601					mXmppConnectionService.getString(R.string.disable_foreground_service),
602					createDisableForeground());
603		}
604		return mBuilder.build();
605	}
606
607	private PendingIntent createOpenConversationsIntent() {
608		return PendingIntent.getActivity(mXmppConnectionService, 0, new Intent(mXmppConnectionService, ConversationActivity.class), 0);
609	}
610
611	public void updateErrorNotification() {
612		final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
613		final List<Account> errors = new ArrayList<>();
614		for (final Account account : mXmppConnectionService.getAccounts()) {
615			if (account.hasErrorStatus() && account.showErrorNotification()) {
616				errors.add(account);
617			}
618		}
619		if (mXmppConnectionService.getPreferences().getBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE, false)) {
620			notificationManager.notify(FOREGROUND_NOTIFICATION_ID, createForegroundNotification());
621		}
622		final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
623		if (errors.size() == 0) {
624			notificationManager.cancel(ERROR_NOTIFICATION_ID);
625			return;
626		} else if (errors.size() == 1) {
627			mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_account));
628			mBuilder.setContentText(errors.get(0).getJid().toBareJid().toString());
629		} else {
630			mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_accounts));
631			mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_fix));
632		}
633		mBuilder.addAction(R.drawable.ic_autorenew_white_24dp,
634				mXmppConnectionService.getString(R.string.try_again),
635				createTryAgainIntent());
636		mBuilder.setDeleteIntent(createDismissErrorIntent());
637		mBuilder.setVisibility(NotificationCompat.VISIBILITY_PUBLIC);
638		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
639			mBuilder.setSmallIcon(R.drawable.ic_warning_white_24dp);
640		} else {
641			mBuilder.setSmallIcon(R.drawable.ic_stat_alert_warning);
642		}
643		mBuilder.setContentIntent(PendingIntent.getActivity(mXmppConnectionService,
644				145,
645				new Intent(mXmppConnectionService,ManageAccountActivity.class),
646				PendingIntent.FLAG_UPDATE_CURRENT));
647		notificationManager.notify(ERROR_NOTIFICATION_ID, mBuilder.build());
648	}
649}