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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
declare(strict_types=1);
namespace Magento\ConfigurableProductGraphQl\Model\Resolver;
use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
use Magento\Catalog\Api\Data\ProductInterface;
use Magento\ConfigurableProduct\Model\Product\Type\Configurable as Type;
use Magento\ConfigurableProductGraphQl\Model\Options\Collection as OptionCollection;
use Magento\Framework\EntityManager\MetadataPool;
use Magento\Framework\GraphQl\Config\Element\Field;
use Magento\Framework\GraphQl\Query\Resolver\ValueFactory;
use Magento\Framework\GraphQl\Query\ResolverInterface;
/**
* @inheritdoc
*/
class Options implements ResolverInterface
{
/**
* @var OptionCollection
*/
private $optionCollection;
/**
* @var ValueFactory
*/
private $valueFactory;
/**
* @var MetadataPool
*/
private $metadataPool;
/**
* @param OptionCollection $optionCollection
* @param ValueFactory $valueFactory
* @param MetadataPool $metadataPool
*/
public function __construct(
OptionCollection $optionCollection,
ValueFactory $valueFactory,
MetadataPool $metadataPool
) {
$this->optionCollection = $optionCollection;
$this->valueFactory = $valueFactory;
$this->metadataPool = $metadataPool;
}
/**
* Fetch and format configurable variants.
*
* {@inheritdoc}
*/
public function resolve(Field $field, $context, ResolveInfo $info, array $value = null, array $args = null)
{
$linkField = $this->metadataPool->getMetadata(ProductInterface::class)->getLinkField();
if ($value['type_id'] !== Type::TYPE_CODE || !isset($value[$linkField])) {
$result = function () {
return null;
};
return $this->valueFactory->create($result);
}
$this->optionCollection->addProductId((int)$value[$linkField]);
$result = function () use ($value, $linkField) {
return $this->optionCollection->getAttributesByProductId((int)$value[$linkField]);
};
return $this->valueFactory->create($result);
}
}