Category::getCategoryList

private function getCategoryList(Factory $factory): ?DtoCategoryList
{
	$categories = [];
	$restrictions = [];
	$canUserEditCategory = $this->canUserEditCategory();

	$sortedTunnelsByCategory = [];
	if ($canUserEditCategory)
	{
		$tunnelScheme = (new TunnelManager($factory->getEntityTypeId()))->getScheme();

		$sortedTunnelsByCategory = array_reduce($tunnelScheme['stages'],
			function ($acc, $stage) use ($factory) {
				foreach ($stage['tunnels'] as $tunnel)
				{
					$tunnelData = $this->prepareTunnelData($factory, $tunnel);
					if ($tunnelData)
					{
						$acc[$stage['categoryId']][] = $tunnelData;
					}
				}
				return $acc;
			}, []);
	}

	$categoriesCollection = $this->getCategoriesCollection($factory);

	foreach ($categoriesCollection as $category)
	{
		$categoryId = $category->getId();

		$categoryData = [
			'id' => $categoryId,
			'name' => $category->getName(),
			'sort' => $category->getSort(),
			'isDefault' => $category->getIsDefault(),
			'tunnels' => $sortedTunnelsByCategory[$categoryId] ?? [],
		];

		if (CounterEntityCounterFactory::isEntityTypeSupported($factory->getEntityTypeId()))
		{
			$categoryData['counter'] = CounterEntityCounterFactory::create(
				$factory->getEntityTypeId(),
				CounterEntityCounterType::ALL,
				$this->getCurrentUser()->getId(),
				['DEAL_CATEGORY_ID' => $categoryId]
			)->getValue();
		}

		$categories[] = $categoryData;
	}

	if ($factory->getEntityName() === CCrmOwnerType::DealName)
	{
		$dealCategoryLimitRestriction = RestrictionManager::getDealCategoryLimitRestriction();
		if ($dealCategoryLimitRestriction)
		{
			$restrictions[] = [
				'id' => $dealCategoryLimitRestriction->getMobileInfoHelperId(),
				'name' => $dealCategoryLimitRestriction->getName(),
				'isExceeded' => $dealCategoryLimitRestriction->isExceeded(),
			];
		}
	}

	return new DtoCategoryList([
		'categories' => $categories,
		'restrictions' => $restrictions,
		'canUserEditCategory' => $canUserEditCategory,
	]);
}