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<?php declare(strict_types=1);
namespace Shopware\Core\Content\Category\Service;
use Shopware\Core\Content\Category\CategoryCollection;
use Shopware\Core\Content\Category\CategoryEntity;
use Shopware\Core\Content\Category\Event\NavigationLoadedEvent;
use Shopware\Core\Content\Category\Exception\CategoryNotFoundException;
use Shopware\Core\Content\Category\SalesChannel\AbstractNavigationRoute;
use Shopware\Core\Content\Category\Tree\Tree;
use Shopware\Core\Content\Category\Tree\TreeItem;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Criteria;
use Shopware\Core\Framework\DataAbstractionLayer\Util\AfterSort;
use Shopware\Core\System\Annotation\Concept\ExtensionPattern\Decoratable;
use Shopware\Core\System\SalesChannel\SalesChannelContext;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
/**
* @Decoratable()
*/
class NavigationLoader implements NavigationLoaderInterface
{
/**
* @var TreeItem
*/
private $treeItem;
/**
* @var EventDispatcherInterface
*/
private $eventDispatcher;
/**
* @var AbstractNavigationRoute
*/
private $navigationRoute;
/**
* @internal
*/
public function __construct(
EventDispatcherInterface $eventDispatcher,
AbstractNavigationRoute $navigationRoute
) {
$this->treeItem = new TreeItem(null, []);
$this->eventDispatcher = $eventDispatcher;
$this->navigationRoute = $navigationRoute;
}
/**
* {@inheritdoc}
*
* @throws CategoryNotFoundException
*/
public function load(string $activeId, SalesChannelContext $context, string $rootId, int $depth = 2): Tree
{
$request = new Request();
$request->query->set('buildTree', 'false');
$request->query->set('depth', (string) $depth);
$criteria = new Criteria();
$criteria->setTitle('header::navigation');
$categories = $this->navigationRoute
->load($activeId, $rootId, $request, $context, $criteria)
->getCategories();
$navigation = $this->getTree($rootId, $categories, $categories->get($activeId));
$event = new NavigationLoadedEvent($navigation, $context);
$this->eventDispatcher->dispatch($event);
return $event->getNavigation();
}
private function getTree(?string $rootId, CategoryCollection $categories, ?CategoryEntity $active): Tree
{
$parents = [];
$items = [];
foreach ($categories as $category) {
$item = clone $this->treeItem;
$item->setCategory($category);
$parents[$category->getParentId()][$category->getId()] = $item;
$items[$category->getId()] = $item;
}
foreach ($parents as $parentId => $children) {
if (empty($parentId)) {
continue;
}
$sorted = AfterSort::sort($children);
$filtered = \array_filter($sorted, static function (TreeItem $filter) {
return $filter->getCategory()->getActive() && $filter->getCategory()->getVisible();
});
if (!isset($items[$parentId])) {
continue;
}
$item = $items[$parentId];
$item->setChildren($filtered);
}
$root = $parents[$rootId] ?? [];
$root = AfterSort::sort($root);
$filtered = [];
/** @var TreeItem $item */
foreach ($root as $key => $item) {
if (!$item->getCategory()->getActive() || !$item->getCategory()->getVisible()) {
continue;
}
$filtered[$key] = $item;
}
return new Tree($active, $filtered);
}
}

vendor/shopware/core/Content/Category/Service/NavigationLoader.php line 56