src/Services/Switcher/FeatureStateEvaluator.php line 42

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  1. <?php
  3. declare(strict_types=1);
  5. namespace Slivki\Services\Switcher;
  7. use Exception;
  8. use Psr\Log\LoggerInterface;
  9. use Slivki\Entity\ServerFeatureState;
  10. use Slivki\Entity\User;
  11. use Slivki\Services\UserGetter;
  12. use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
  13. use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
  15. final class FeatureStateEvaluator
  16. {
  17.     private ParameterBagInterface $parameterBag;
  18.     private LoggerInterface $logger;
  19.     private UserGetter $userGetter;
  21.     public function __construct(
  22.         ParameterBagInterface $parameterBag,
  23.         LoggerInterface $logger,
  24.         UserGetter $userGetter
  25.     ) {
  26.         $this->parameterBag = $parameterBag;
  27.         $this->logger = $logger;
  28.         $this->userGetter = $userGetter;
  29.     }
  31.     public function evaluate(ServerFeatureState $serverFeatureState): bool
  32.     {
  33.         $expressionLanguage = new ExpressionLanguage();
  35.         $user = $this->userGetter->find();
  37.         try {
  38.             return $expressionLanguage->evaluate(
  39.                 $serverFeatureState->getEligibilityRule(),
  40.                 [
  41.                     'config' => $this->parameterBag->all(),
  42.                     'user' => $user ?? new User(),
  43.                 ]
  44.             );
  45.         } catch (Exception $exception) {
  46.             $this->logger->error('Server feature state does not exist. Feature may works incorrectly.', [
  47.                 'exception' => $exception,
  48.             ]);
  49.         }
  51.         return false;
  52.     }
  53. }