Handle deletion of location messages

OsmAnd-telegram/src/net/osmand/telegram/TelegramService.kt

@@ -253,6 +253,14 @@ class TelegramService : Service(), LocationListener, TelegramIncomingMessagesLis
 		}
 	}
 
+	override fun onDeleteChatLocationMessages(chatId: Long, messages: List<TdApi.Message>) {
+		// TODO: handle notification?
+		val app = app()
+		if (app.settings.isShowingChatOnMap(chatId)) {
+			DeleteMessagesTask(app).executeOnExecutor(executor, messages)
+		}
+	}
+
 	override fun updateLocationMessages() {
 		UpdateMessagesTask(app()).executeOnExecutor(executor)
 	}
@@ -267,6 +275,16 @@ class TelegramService : Service(), LocationListener, TelegramIncomingMessagesLis
 		}
 	}
 
+	private class DeleteMessagesTask(private val app: TelegramApplication) : AsyncTask<List<TdApi.Message>, Void, Void?>() {
+
+		override fun doInBackground(vararg messages: List<TdApi.Message>): Void? {
+			for (list in messages) {
+				app.showLocationHelper.hideMessages(list)
+			}
+			return null
+		}
+	}
+
 	private class UpdateMessagesTask(private val app: TelegramApplication) : AsyncTask<Void, Void, Void?>() {
 
 		override fun doInBackground(vararg params: Void?): Void? {

OsmAnd-telegram/src/net/osmand/telegram/helpers/ShowLocationHelper.kt

@@ -107,12 +107,15 @@ class ShowLocationHelper(private val app: TelegramApplication) {
 	}
 
 	fun hideChatMessages(chatId: Long) {
+		hideMessages(telegramHelper.getChatMessages(chatId))
+	}
+
+	fun hideMessages(messages: List<TdApi.Message>) {
 		execOsmandApi {
-			val messages = telegramHelper.getChatMessages(chatId)
 			for (message in messages) {
 				val user = telegramHelper.getUser(message.senderUserId)
 				if (user != null) {
-					removeMapPoint(chatId, message)
+					removeMapPoint(message.chatId, message)
 				}
 			}
 		}

OsmAnd-telegram/src/net/osmand/telegram/helpers/TelegramHelper.kt

@@ -174,6 +174,7 @@ class TelegramHelper private constructor() {
 
 	interface TelegramIncomingMessagesListener {
 		fun onReceiveChatLocationMessages(chatId: Long, vararg messages: TdApi.Message)
+		fun onDeleteChatLocationMessages(chatId: Long, messages: List<TdApi.Message>)
 		fun updateLocationMessages()
 	}
 
@@ -913,10 +914,16 @@ class TelegramHelper private constructor() {
 					val updateDeleteMessages = obj as TdApi.UpdateDeleteMessages
 					if (updateDeleteMessages.isPermanent) {
 						val chatId = updateDeleteMessages.chatId
+						val deletedMessages = mutableListOf<TdApi.Message>()
 						for (messageId in updateDeleteMessages.messageIds) {
 							if (chatLiveMessages[chatId] == messageId) {
 								chatLiveMessages.remove(chatId)
-								break
+							}
+							usersLocationMessages.remove(messageId)?.also { deletedMessages.add(it) }
+						}
+						if (deletedMessages.isNotEmpty()) {
+							incomingMessagesListeners.forEach {
+								it.onDeleteChatLocationMessages(chatId, deletedMessages)
 							}
 						}
 					}

OsmAnd-telegram/src/net/osmand/telegram/ui/LiveNowTabFragment.kt

@@ -124,6 +124,10 @@ class LiveNowTabFragment : Fragment(), TelegramListener, TelegramIncomingMessage
 		app.runInUIThread { updateList() }
 	}
 
+	override fun onDeleteChatLocationMessages(chatId: Long, messages: List<TdApi.Message>) {
+		app.runInUIThread { updateList() }
+	}
+
 	override fun updateLocationMessages() {}
 
 	override fun updateLocation(location: Location?) {