<?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\Core\Search\Builder;

use PrestaShop\PrestaShop\Core\Search\Filters;

/**
 * Basic abstract class for FiltersBuilder classes, able to store the filters_id
 * from the config.
 */
abstract class AbstractFiltersBuilder implements FiltersBuilderInterface
{
    /** @var string */
    protected $filterId;

    /**
     * {@inheritdoc}
     */
    public function setConfig(array $config)
    {
        $this->filterId = isset($config['filter_id']) ? $config['filter_id'] : '';

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    abstract public function buildFilters(Filters $filters = null);

    /**
     * @param Filters|null $filters
     *
     * @return string
     */
    protected function getFilterId(Filters $filters = null)
    {
        if (null === $filters) {
            return $this->filterId;
        }

        return $filters->getFilterId();
    }
}