hasAvailableFilter example

public function processCriteria(Criteria $criteria, SalesChannelContext $context): void
    {
        if (empty($criteria->getFields())) {
            $criteria
                ->addAssociation('prices')
                ->addAssociation('unit')
                ->addAssociation('deliveryTime')
                ->addAssociation('cover.media')
            ;
        }

        if (!$this->hasAvailableFilter($criteria)) {
            $criteria->addFilter(
                new ProductAvailableFilter($context->getSalesChannel()->getId(), ProductVisibilityDefinition::VISIBILITY_LINK)
            );
        }

        if ($criteria->hasAssociation('productReviews')) {
            $association = $criteria->getAssociation('productReviews');
            $activeReviewsFilter = new MultiFilter(MultiFilter::CONNECTION_OR, [new EqualsFilter('status', true)]);
            if ($customer = $context->getCustomer()) {
                $activeReviewsFilter->addQuery(new EqualsFilter('customerId', $customer->getId()));
            }