<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
declare(strict_types=1);

namespace Magento\CatalogRule\Model\Indexer\IndexBuilder;

use Magento\Catalog\Api\ProductRepositoryInterface;
use Magento\Framework\Api\SearchCriteriaBuilder;
use Magento\Catalog\Api\Data\ProductInterface;

/**
 * Product loader that gets products by ids via product repository
 */
class ProductLoader
{
    /**
     * @var ProductRepositoryInterface
     */
    private $productRepository;

    /**
     * @var SearchCriteriaBuilder
     */
    private $searchCriteriaBuilder;

    /**
     * @param ProductRepositoryInterface $productRepository
     * @param SearchCriteriaBuilder $searchCriteriaBuilder
     */
    public function __construct(
        ProductRepositoryInterface $productRepository,
        SearchCriteriaBuilder $searchCriteriaBuilder
    ) {
        $this->productRepository = $productRepository;
        $this->searchCriteriaBuilder = $searchCriteriaBuilder;
    }

    /**
     * Get products by ids
     *
     * @param array $productIds
     * @return ProductInterface[]
     */
    public function getProducts(array $productIds): array
    {
        $this->searchCriteriaBuilder->addFilter('entity_id', $productIds, 'in');
        $searchCriteria = $this->searchCriteriaBuilder->create();
        $products = $this->productRepository->getList($searchCriteria)->getItems();

        return $products;
    }
}