TaskCreated::getNotification

public function getNotification(Message $message): ?Notification
{
	$metadata = $message->getMetaData();
	$task = $metadata->getTask();
	$userRepository = $metadata->getUserRepository();

	if ($task === null || $userRepository === null)
	{
		return null;
	}

	$recepient = $message->getRecepient();
	$responsible = $this->getResponsible($metadata->getTask(), $metadata->getUserRepository());

	$locKey = 'TASKS_NEW_TASK_MESSAGE';
	$nameTemplate = $metadata->getParams()['user_params']['NAME_TEMPLATE'] ?? null;
	$serverTimeZoneOffset = $metadata->getUserRepository()->getUserTimeZoneOffset(0);

	$description = '';

	if ($responsible instanceof User)
	{
		$description .= Loc::getMessage('TASKS_MESSAGE_RESPONSIBLE_ID', null, $recepient->getLang());
		$description .= ': '. $responsible->toString($nameTemplate) . "rn";
	}

	$accomplices = $this->getCommaSeparatedUserNames($userRepository, $task->getAccompliceMembersIds(), $nameTemplate);
	if ($accomplices)
	{
		$description .= Loc::getMessage('TASKS_MESSAGE_ACCOMPLICES', null, $recepient->getLang());
		$description .= ': ' . $accomplices . "rn";
	}

	$auditors = $this->getCommaSeparatedUserNames($userRepository, $task->getAuditorMembersIds(), $nameTemplate);
	if ($auditors)
	{
		$description .= Loc::getMessage('TASKS_MESSAGE_AUDITORS', null, $recepient->getLang());
		$description .= ': ' . $auditors . "rn";
	}

	if ($task->getDeadline())
	{
		// Get unix timestamp for DEADLINE
		$utsDeadline = $task->getDeadline()->getTimestamp() - $serverTimeZoneOffset;
		$recepientTimeZoneOffset = $userRepository->getUserTimeZoneOffset($recepient->getId());

		// Make bitrix timestamp for given user
		$bitrixTsDeadline = $utsDeadline + $recepientTimeZoneOffset;
		$deadlineAsString = BitrixTasksUI::formatDateTime($bitrixTsDeadline, '^'.BitrixTasksUI::getDateTimeFormat());

		$description .= Loc::getMessage('TASKS_MESSAGE_DEADLINE', null, $recepient->getLang());
		$description .= ': ' . $deadlineAsString . "rn";
	}

	$notification = new Notification(
		$locKey,
		$message
	);
	$title = new NotificationTaskTitle($task);
	$notification->addTemplate(new NotificationTemplate('#TASK_TITLE#', $title->getFormatted($recepient->getLang())));
	$notification->addTemplate(new NotificationTemplate('#TASK_EXTRA#', $description));

	return $notification;
}