Title::prepare

public function prepare(): string
{
	$row = $this->getRowData();
	$parameters = $this->getParameters();

	$userId = User::getId();
	$taskId = (int)$row['ID'];
	$taskStatus = (int)$row['REAL_STATUS'];
	$taskPriority = (int)($row['PRIORITY'] ?? 0);
	$groupId = (int)($parameters['GROUP_ID'] ?? 0);

	$taskUrlTemplate = (
		$groupId > 0 ? $parameters['PATH_TO_GROUP_TASKS_TASK'] : $parameters['PATH_TO_USER_TASKS_TASK']
	);
	$taskUrl = CComponentEngine::MakePathFromTemplate($taskUrlTemplate, [
		'user_id' => $userId,
		'task_id' => $taskId,
		'group_id' => $groupId,
		'action' => 'view',
	]);

	$priorityLayout = ($taskPriority === BitrixTasksInternalsTaskPriority::HIGH ? ' ' : '');

	$countFiles = (int) ($row['COUNT_FILES'] ?? 0);
	$checkListComplete = (int) ($row['CHECK_LIST']['COMPLETE'] ?? 0);
	$checkListWork = (int) ($row['CHECK_LIST']['WORK'] ?? 0);
	$checkListAll = ($checkListComplete + $checkListWork);

	$filesIcon = "
{$countFiles}
";
	$checkListIcon = "
{$checkListComplete}/{$checkListAll}
";

	$postfixIcons = "{$priorityLayout}"
		.($countFiles > 0 ? $filesIcon : '')
		.($checkListAll > 0 ? $checkListIcon : '')
		."";
	$timeTracker = "";

	$statuses = [Status::COMPLETED, Status::DEFERRED];
	$cssClass = 'task-status-text-color-'.(
		in_array($taskStatus, $statuses, true) ? tasksStatus2String($taskStatus) : 'in-progress'
		);
	$taskTitle = htmlspecialcharsbx($row['TITLE']);

	$title = "{$taskTitle}{$postfixIcons}";
	$title .= $timeTracker . $this->prepareTimeTracking();

	if (isset($row['NAV_CHAIN']) && !empty($row['NAV_CHAIN']))
	{
		$title .= '
';
		foreach ($row['NAV_CHAIN'] as $subTask)
		{
			$subTaskUrl = CComponentEngine::MakePathFromTemplate($taskUrlTemplate, [
				'user_id' => $userId,
				'task_id' => $subTask['ID'],
				'group_id' => $groupId,
				'action' => 'view',
			]);

			$subTaskTitle = htmlspecialcharsbx($subTask['TITLE']);
			$title .= "  ←  {$subTaskTitle}";
		}
		$title .= '
';
	}

	return $title;
}