<?php declare(strict_types=1);
namespace Shopware\Storefront\Page\Product\Review;
use Shopware\Core\Content\Product\Aggregate\ProductReview\ProductReviewEntity;
use Shopware\Core\Content\Product\SalesChannel\Review\AbstractProductReviewRoute;
use Shopware\Core\Content\Product\SalesChannel\Review\RatingMatrix;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Aggregation\Bucket\FilterAggregation;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Aggregation\Bucket\TermsAggregation;
use Shopware\Core\Framework\DataAbstractionLayer\Search\AggregationResult\Bucket\TermsResult;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Criteria;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Filter\EqualsFilter;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Filter\MultiFilter;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Filter\RangeFilter;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Sorting\FieldSorting;
use Shopware\Core\Framework\Routing\Exception\MissingRequestParameterException;
use Shopware\Core\System\SalesChannel\SalesChannelContext;
use Shopware\Storefront\Framework\Page\StorefrontSearchResult;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\HttpFoundation\Request;
class ProductReviewLoader
{
private const LIMIT = 10;
private const DEFAULT_PAGE = 1;
private const FILTER_LANGUAGE = 'filter-language';
/**
* @var EventDispatcherInterface
*/
private $eventDispatcher;
/**
* @var AbstractProductReviewRoute
*/
private $route;
/**
* @internal
*/
public function __construct(
AbstractProductReviewRoute $route,
EventDispatcherInterface $eventDispatcher
) {
$this->eventDispatcher = $eventDispatcher;
$this->route = $route;
}
/**
* load reviews for one product. The request must contain the productId
* otherwise MissingRequestParameterException is thrown
*
* @throws MissingRequestParameterException
* @throws \Shopware\Core\Framework\DataAbstractionLayer\Exception\InconsistentCriteriaIdsException
*/
public function load(Request $request, SalesChannelContext $context): ReviewLoaderResult
{
$productId = $request->get('parentId') ?? $request->get('productId');
if (!$productId) {
throw new MissingRequestParameterException('productId');
}
$criteria = $this->createCriteria($request, $context);
$reviews = $this->route
->load($productId, $request, $context, $criteria)
->getResult();
$reviews = StorefrontSearchResult::createFrom($reviews);
$this->eventDispatcher->dispatch(new ProductReviewsLoadedEvent($reviews, $context, $request));
$reviewResult = ReviewLoaderResult::createFrom($reviews);
$reviewResult->setProductId($request->get('productId'));
$reviewResult->setParentId($request->get('parentId'));
$aggregation = $reviews->getAggregations()->get('ratingMatrix');
$matrix = new RatingMatrix([]);
if ($aggregation instanceof TermsResult) {
$matrix = new RatingMatrix($aggregation->getBuckets());
}
$reviewResult->setMatrix($matrix);
$reviewResult->setCustomerReview($this->getCustomerReview($productId, $context));
$reviewResult->setTotalReviews($matrix->getTotalReviewCount());
return $reviewResult;
}
private function createCriteria(Request $request, SalesChannelContext $context): Criteria
{
$limit = (int) $request->get('limit', self::LIMIT);
$page = (int) $request->get('p', self::DEFAULT_PAGE);
$offset = $limit * ($page - 1);
$criteria = new Criteria();
$criteria->setLimit($limit);
$criteria->setOffset($offset);
$criteria->setTotalCountMode(Criteria::TOTAL_COUNT_MODE_EXACT);
$sorting = new FieldSorting('createdAt', 'DESC');
if ($request->get('sort', 'createdAt') === 'points') {
$sorting = new FieldSorting('points', 'DESC');
}
$criteria->addSorting($sorting);
if ($request->get('language') === self::FILTER_LANGUAGE) {
$criteria->addPostFilter(
new EqualsFilter('languageId', $context->getContext()->getLanguageId())
);
}
$this->handlePointsAggregation($request, $criteria, $context);
return $criteria;
}
/**
* get review by productId and customer
* a customer should only create one review per product, so if there are more than one
* review we only take one
*
* @throws \Shopware\Core\Framework\DataAbstractionLayer\Exception\InconsistentCriteriaIdsException
*/
private function getCustomerReview(string $productId, SalesChannelContext $context): ?ProductReviewEntity
{
$customer = $context->getCustomer();
if (!$customer) {
return null;
}
$criteria = new Criteria();
$criteria->setLimit(1);
$criteria->setOffset(0);
$criteria->addFilter(new EqualsFilter('customerId', $customer->getId()));
$customerReviews = $this->route
->load($productId, new Request(), $context, $criteria)
->getResult();
return $customerReviews->first();
}
private function handlePointsAggregation(Request $request, Criteria $criteria, SalesChannelContext $context): void
{
$points = $request->get('points', []);
if (\is_array($points) && \count($points) > 0) {
$pointFilter = [];
foreach ($points as $point) {
$pointFilter[] = new RangeFilter('points', [
'gte' => $point - 0.5,
'lt' => $point + 0.5,
]);
}
$criteria->addPostFilter(new MultiFilter(MultiFilter::CONNECTION_OR, $pointFilter));
}
$reviewFilters[] = new EqualsFilter('status', true);
if ($context->getCustomer() !== null) {
$reviewFilters[] = new EqualsFilter('customerId', $context->getCustomer()->getId());
}
$criteria->addAggregation(
new FilterAggregation(
'customer-login-filter',
new TermsAggregation('ratingMatrix', 'points'),
[
new MultiFilter(MultiFilter::CONNECTION_OR, $reviewFilters),
]
)
);
}
}