<?php
/**
 * Copyright since 2007 PrestaShop SA and Contributors
 * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.md.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://devdocs.prestashop.com/ for more information.
 *
 * @author    PrestaShop SA and Contributors <contact@prestashop.com>
 * @copyright Since 2007 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 */

namespace PrestaShop\PrestaShop\Adapter\Product;

use PrestaShop\PrestaShop\Core\Configuration\DataConfigurationInterface;
use PrestaShop\PrestaShop\Core\ConfigurationInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

/**
 * Class PaginationConfiguration is responsible for saving & loading pagination configuration for products.
 */
class PaginationConfiguration implements DataConfigurationInterface
{
    /**
     * @var ConfigurationInterface
     */
    private $configuration;

    public function __construct(ConfigurationInterface $configuration)
    {
        $this->configuration = $configuration;
    }

    /**
     * {@inheritdoc}
     */
    public function getConfiguration()
    {
        return [
            'products_per_page' => $this->configuration->get('PS_PRODUCTS_PER_PAGE'),
            'default_order_by' => $this->configuration->get('PS_PRODUCTS_ORDER_BY'),
            'default_order_way' => $this->configuration->get('PS_PRODUCTS_ORDER_WAY'),
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function updateConfiguration(array $config)
    {
        $errors = [];

        if ($this->validateConfiguration($config)) {
            $this->configuration->set('PS_PRODUCTS_PER_PAGE', (int) $config['products_per_page']);
            $this->configuration->set('PS_PRODUCTS_ORDER_BY', (int) $config['default_order_by']);
            $this->configuration->set('PS_PRODUCTS_ORDER_WAY', (int) $config['default_order_way']);
        }

        return $errors;
    }

    /**
     * {@inheritdoc}
     */
    public function validateConfiguration(array $configuration)
    {
        $resolver = new OptionsResolver();
        $resolver->setRequired([
            'products_per_page',
            'default_order_by',
            'default_order_way',
        ]);

        $resolver->resolve($configuration);

        return true;
    }
}