<?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 China or not.
 *
 * ISO 3166-1 alpha-2: CN
 *
 * @see http://www.geonames.org/CN/administrative-division-china.html
 *
 * @author Henrique Moody <henriquemoody@gmail.com>
 */
final class CnSubdivisionCode extends AbstractSearcher
{
    /**
     * {@inheritdoc}
     */
    protected function getDataSource(): array
    {
        return [
            'AH', // Anhui
            'BJ', // Beijing
            'CQ', // Chongqìng
            'FJ', // Fujian
            'GD', // Guangdong
            'GS', // Gansu
            'GX', // Guangxi
            'GZ', // Guizhou
            'HA', // Henan
            'HB', // Hubei
            'HE', // Hebei
            'HI', // Hainan
            'HK', // Xianggang
            'HL', // Heilongjiang
            'HN', // Hunan
            'JL', // Jilin
            'JS', // Jiangsu
            'JX', // Jiangxi
            'LN', // Liaoning
            'MO', // Aomen
            'NM', // Nei Mongol
            'NX', // Ningxia
            'QH', // Qinghai
            'SC', // Sichuan
            'SD', // Shandong
            'SH', // Shanghai
            'SN', // Shaanxi
            'SX', // Shanxi
            'TJ', // Tianjin
            'TW', // Taiwan
            'XJ', // Xinjiang
            'XZ', // Xizang Zìzhìqu - Tibet
            'YN', // Yunnan
            'ZJ', // Zhejiang
        ];
    }
}