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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace BO\Zmscitizenapi\Middleware; |
| 6 | |
| 7 | use Psr\Http\Message\ResponseInterface; |
| 8 | use Psr\Http\Message\ServerRequestInterface; |
| 9 | use Psr\Http\Server\MiddlewareInterface; |
| 10 | use Psr\Http\Server\RequestHandlerInterface; |
| 11 | use BO\Zmscitizenapi\Services\Core\LoggerService; |
| 12 | |
| 13 | class LanguageMiddleware implements MiddlewareInterface |
| 14 | { |
| 15 | private const SUPPORTED_LANGUAGES = ['de', 'en', 'ua']; |
| 16 | // Add more languages here |
| 17 | private const DEFAULT_LANGUAGE = 'de'; |
| 18 | private const FALLBACK_LANGUAGE = 'en'; |
| 19 | private LoggerService $logger; |
| 20 | public function __construct(LoggerService $logger) |
| 21 | { |
| 22 | $this->logger = $logger; |
| 23 | } |
| 24 | |
| 25 | public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
| 26 | { |
| 27 | $uri = $request->getUri()->getPath(); |
| 28 | $parts = explode('/', trim($uri, '/')); |
| 29 | |
| 30 | if ( |
| 31 | count($parts) >= 3 && |
| 32 | $parts[0] === 'terminvereinbarung' && |
| 33 | $parts[1] === 'api' && |
| 34 | $parts[2] === 'citizen' |
| 35 | ) { |
| 36 | $language = isset($parts[3]) && in_array($parts[3], self::SUPPORTED_LANGUAGES) |
| 37 | ? $parts[3] |
| 38 | : self::DEFAULT_LANGUAGE; |
| 39 | $request = $request->withAttribute('language', $language); |
| 40 | } |
| 41 | |
| 42 | return $handler->handle($request); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Get supported languages |
| 47 | * @return array |
| 48 | */ |
| 49 | public static function getSupportedLanguages(): array |
| 50 | { |
| 51 | return self::SUPPORTED_LANGUAGES; |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * Get default language |
| 56 | * @return string |
| 57 | */ |
| 58 | public static function getDefaultLanguage(): string |
| 59 | { |
| 60 | return self::DEFAULT_LANGUAGE; |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Get fallback language |
| 65 | * @return string |
| 66 | */ |
| 67 | public static function getFallbackLanguage(): string |
| 68 | { |
| 69 | return self::FALLBACK_LANGUAGE; |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Normalize language code |
| 74 | * @param string|null $language |
| 75 | * @return string |
| 76 | */ |
| 77 | public static function normalizeLanguage(?string $language): string |
| 78 | { |
| 79 | $language = strtolower($language ?? self::DEFAULT_LANGUAGE); |
| 80 | return in_array($language, self::SUPPORTED_LANGUAGES) ? $language : self::DEFAULT_LANGUAGE; |
| 81 | } |
| 82 | } |