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<?php |
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declare(strict_types=1); |
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namespace LD\LanguageDetection\Handler; |
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use LD\LanguageDetection\Event\BuildResponse; |
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use LD\LanguageDetection\Event\CheckLanguageDetection; |
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use LD\LanguageDetection\Event\DetectUserLanguages; |
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use LD\LanguageDetection\Event\NegotiateSiteLanguage; |
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use LD\LanguageDetection\Handler\Exception\DisableLanguageDetectionException; |
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use LD\LanguageDetection\Handler\Exception\NoResponseException; |
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use LD\LanguageDetection\Handler\Exception\NoSelectedLanguageException; |
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use LD\LanguageDetection\Handler\Exception\NoUserLanguagesException; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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/** |
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* Core handler for handling the language detection, with all 4 core events. |
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*/ |
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class LanguageDetectionHandler extends AbstractHandler implements RequestHandlerInterface |
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{ |
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public function handle(ServerRequestInterface $request): ResponseInterface |
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{ |
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$site = $this->getSiteFromRequest($request); |
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$check = new CheckLanguageDetection($site, $request); |
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$this->eventDispatcher->dispatch($check); |
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if (!$check->isLanguageDetectionEnable()) { |
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throw new DisableLanguageDetectionException(); |
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} |
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$detect = new DetectUserLanguages($site, $request); |
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$this->eventDispatcher->dispatch($detect); |
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if (empty($detect->getUserLanguages())) { |
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throw new NoUserLanguagesException(); |
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} |
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$negotiate = new NegotiateSiteLanguage($site, $request, $detect->getUserLanguages()); |
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$this->eventDispatcher->dispatch($negotiate); |
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if (null === $negotiate->getSelectedLanguage()) { |
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throw new NoSelectedLanguageException(); |
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} |
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$response = new BuildResponse($site, $request, $negotiate->getSelectedLanguage()); |
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$this->eventDispatcher->dispatch($response); |
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if (null === $response->getResponse()) { |
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throw new NoResponseException(); |
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} |
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return $response->getResponse(); |
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} |
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} |
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lochmueller /
language_detection
