GetTabsAction::getFirstAvailableCategory

private function getFirstAvailableCategory(Factory $factory, UserPermissions $userPermissions): ?int
{
	$entityTypeId = $factory->getEntityTypeId();
	$categories = $factory->getCategories();
	foreach ($categories as $category)
	{
		if ($userPermissions->canReadTypeInCategory($entityTypeId, $category->getId()))
		{
			return $category->getId();
		}
	}

	return null;
}