<?php

/*
 * This file is part of Respect/Validation.
 *
 * (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
 *
 * For the full copyright and license information, please view the "LICENSE.md"
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Respect\Validation\Rules\Locale;

use Respect\Validation\Rules\AbstractSearcher;

/**
 * Validates whether an input is subdivision code of Gambia or not.
 *
 * ISO 3166-1 alpha-2: GM
 *
 * @see http://www.geonames.org/GM/administrative-division-gambia.html
 *
 * @author Henrique Moody <henriquemoody@gmail.com>
 */
final class GmSubdivisionCode extends AbstractSearcher
{
    /**
     * {@inheritdoc}
     */
    protected function getDataSource(): array
    {
        return [
            'B', // Banjul
            'L', // Lower River
            'M', // Central River
            'N', // North Bank
            'U', // Upper River
            'W', // Western
        ];
    }
}