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<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\ConfigurableProduct\Model\Plugin;

use Magento\ConfigurableProduct\Model\Product\Type\Configurable;

/**
 * Class PriceBackend
 *
 *  Make price validation optional for configurable product
 */
class PriceBackend
{
    /**
     * @param \Magento\Catalog\Model\Product\Attribute\Backend\Price $subject
     * @param \Closure $proceed
     * @param \Magento\Catalog\Model\Product|\Magento\Framework\DataObject $object
     * @return bool
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    public function aroundValidate(
        \Magento\Catalog\Model\Product\Attribute\Backend\Price $subject,
        \Closure $proceed,
        $object
    ) {
        if ($object instanceof \Magento\Catalog\Model\Product
            && $object->getTypeId() == Configurable::TYPE_CODE
        ) {
            return true;
        } else {
            return $proceed($object);
        }
    }
}