Task::doAdd

static function doAdd($userId, array $data, array $parameters)
{
	$userId = (int)$userId;

	$errors = static::ensureHaveErrorCollection($parameters);
	$data = static::normalizeData($data);

	static::inviteMembers($data, $errors);
	static::adaptSet($data);
	static::ensureDatePlanChangeAllowed($userId, $data);
	static::setDefaultUFValues($userId, $data);

	$task = CTaskItem::add(static::stripSubEntityData($data), $userId, $parameters);
	$taskId = $task->getId();

	if ($taskId)
	{
		$commentPoster = CommentsTaskCommentPoster::getInstance($taskId, $userId);
		$commentPoster->enableDeferredPostMode();
		$commentPoster->clearComments();

		if (
			($data['ADD_TO_TIMEMAN'] ?? null) === 'Y'
			&& $userId === (int)$data['RESPONSIBLE_ID']
			&& $userId === User::getId()
			&& !ExtranetUser::isExtranet($userId)
		)
		{
			// add the task to planner only if the user this method executed under is current and responsible for the task
			CTaskPlannerMaintance::plannerActions(['add' => [$taskId]]);
		}
		if (($data['ADD_TO_FAVORITE'] ?? null) === "Y")
		{
			$task->addToFavorite();
		}

		// add sub-entities (SE_*)
		$subEntityParams = array_merge($parameters, ['MODE' => static::MODE_ADD]);

		if (array_key_exists(Reminder::getCode(true), $data))
		{
			Reminder::manageSet($userId, $taskId, $data[ Reminder::getCode(true) ], $subEntityParams);
		}

		if (array_key_exists(ProjectDependence::getCode(true), $data))
		{
			ProjectDependence::manageSet($userId, $taskId, $data[ ProjectDependence::getCode(true) ], $subEntityParams);
		}

		if (array_key_exists(Checklist::getCode(true), $data))
		{
			TaskCheckListFacade::merge(
				$taskId,
				$userId,
				$data[CheckList::getCode(true)],
				[
					'analyticsData' => $parameters['ANALYTICS_DATA'],
					'context' => CheckListFacade::TASK_ADD_CONTEXT,
				]
			);
		}

		Template::manageTaskReplication($userId, $taskId, $data, $subEntityParams);
	}

	return $task;
}