<?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 South Korea or not.
 *
 * ISO 3166-1 alpha-2: KR
 *
 * @see http://www.geonames.org/KR/administrative-division-south-korea.html
 *
 * @author Henrique Moody <henriquemoody@gmail.com>
 */
final class KrSubdivisionCode extends AbstractSearcher
{
    /**
     * {@inheritdoc}
     */
    protected function getDataSource(): array
    {
        return [
            '11', // Seoul Special City
            '26', // Busan Metropolitan City
            '27', // Daegu Metropolitan City
            '28', // Incheon Metropolitan City
            '29', // Gwangju Metropolitan City
            '30', // Daejeon Metropolitan City
            '31', // Ulsan Metropolitan City
            '41', // Gyeonggi-do
            '42', // Gangwon-do
            '43', // Chungcheongbuk-do
            '44', // Chungcheongnam-do
            '45', // Jeollabuk-do
            '46', // Jeollanam-do
            '47', // Gyeongsangbuk-do
            '48', // Gyeongsangnam-do
            '49', // Jeju-do
            '50', // Sejong
        ];
    }
}