<?php
/**
 * Copyright 2018 Adobe
 * All Rights Reserved.
 */
declare(strict_types=1);

namespace Magento\CatalogGraphQl\Model\Resolver\Product;

use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
use Magento\Catalog\Model\Product;
use Magento\Framework\GraphQl\Config\Element\Field;
use Magento\Framework\GraphQl\Query\ResolverInterface;

/**
 * @inheritdoc
 *
 * Format the new from and to typo of legacy fields news_from_date and news_to_date
 */
class NewFromTo implements ResolverInterface
{
    /**
     * @inheritdoc
     *
     * Transfer data from legacy news_from_date and news_to_date to new names corespondent fields
     *
     * @param \Magento\Framework\GraphQl\Config\Element\Field $field
     * @param \Magento\Framework\GraphQl\Query\Resolver\ContextInterface $context
     * @param ResolveInfo $info
     * @param array|null $value
     * @param array|null $args
     * @throws \Exception
     * @return null|array
     */
    public function resolve(
        Field $field,
        $context,
        ResolveInfo $info,
        ?array $value = null,
        ?array $args = null
    ) {
        if (!isset($value['model'])) {
            throw new LocalizedException(__('"model" value should be specified'));
        }

        /** @var Product $product */
        $product = $value['model'];
        $attributeName = substr_replace($field->getName(), 's', 3, 0);

        $data = null;
        if ($product->getData($attributeName)) {
            $data = $product->getData($attributeName);
        }

        return $data;
    }
}
