LocaleModifier.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Routing\Aspect;
 
use ‪TYPO3\CMS\Core\Site\SiteLanguageAwareInterface;
use ‪TYPO3\CMS\Core\Site\SiteLanguageAwareTrait;
 
class ‪LocaleModifier implements ‪ModifiableAspectInterface, ‪SiteLanguageAwareInterface
{
    use ‪SiteLanguageAwareTrait;
 
    protected ‪$settings;
 
    protected ‪$localeMap;
 
    protected ‪$default;
 
    public function ‪__construct(array ‪$settings)
    {
        ‪$localeMap = ‪$settings['localeMap'] ?? null;
        ‪$default = ‪$settings['default'] ?? null;
 
        if (!is_array(‪$localeMap)) {
            throw new \InvalidArgumentException('localeMap must be array', 1537277153);
        }
        if (!is_string(‪$default ?? '')) {
            throw new \InvalidArgumentException('default must be string', 1537277154);
        }
 
        $this->settings = ‪$settings;
        $this->localeMap = ‪$localeMap;
        $this->default = ‪$default;
    }
 
    public function ‪modify(): ?string
    {
        $locale = (string)$this->siteLanguage->getLocale();
        foreach ($this->localeMap as $item) {
            $pattern = '#^' . str_replace('_', '-', $item['locale']) . '#i';
            if (preg_match($pattern, $locale)) {
                return (string)$item['value'];
            }
        }
        return ‪$this->default;
    }
}