<?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 Germany or not.
 *
 * ISO 3166-1 alpha-2: DE
 *
 * @see http://www.geonames.org/DE/administrative-division-germany.html
 *
 * @author Henrique Moody <henriquemoody@gmail.com>
 */
final class DeSubdivisionCode extends AbstractSearcher
{
    /**
     * {@inheritdoc}
     */
    protected function getDataSource(): array
    {
        return [
            'BB', // Brandenburg
            'BE', // Berlin
            'BW', // Baden-Württemberg
            'BY', // Bayern
            'HB', // Bremen
            'HE', // Hessen
            'HH', // Hamburg
            'MV', // Mecklenburg-Vorpommern
            'NI', // Niedersachsen
            'NW', // Nordrhein-Westfalen
            'RP', // Rheinland-Pfalz
            'SH', // Schleswig-Holstein
            'SL', // Saarland
            'SN', // Sachsen
            'ST', // Sachsen-Anhalt
            'TH', // Thüringen
        ];
    }
}