<?php
 
 /*
  * This file is part of the Symfony package.
  *
  * (c) Fabien Potencier <fabien@symfony.com>
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
  */
 
 namespace Symfony\Component\Translation;
 
 use Psr\Log\LoggerInterface;
 use Symfony\Component\Translation\Exception\InvalidArgumentException;
 use Symfony\Component\Translation\TranslatorInterface as LegacyTranslatorInterface;
 use Symfony\Contracts\Translation\LocaleAwareInterface;
 use Symfony\Contracts\Translation\TranslatorInterface;
 
 /**
  * @author Abdellatif Ait boudad <a.aitboudad@gmail.com>
  */
 class LoggingTranslator implements TranslatorInterface, LegacyTranslatorInterface, TranslatorBagInterface
 {
     /**
      * @var TranslatorInterface|TranslatorBagInterface
      */
     private $translator;
 
     private $logger;
 
     /**
      * @param TranslatorInterface $translator The translator must implement TranslatorBagInterface
      * @param LoggerInterface     $logger
      */
     public function __construct($translator, LoggerInterface $logger)
     {
         if (!$translator instanceof LegacyTranslatorInterface && !$translator instanceof TranslatorInterface) {
             throw new \TypeError(sprintf('Argument 1 passed to %s() must be an instance of %s, %s given.', __METHOD__, TranslatorInterface::class, \is_object($translator) ? \get_class($translator) : \gettype($translator)));
         }
         if (!$translator instanceof TranslatorBagInterface || !$translator instanceof LocaleAwareInterface) {
             throw new InvalidArgumentException(sprintf('The Translator "%s" must implement TranslatorInterface, TranslatorBagInterface and LocaleAwareInterface.', \get_class($translator)));
         }
 
         $this->translator = $translator;
         $this->logger = $logger;
     }
 
     /**
      * {@inheritdoc}
      */
     public function trans($id, array $parameters = [], $domain = null, $locale = null)
     {
         $trans = $this->translator->trans($id, $parameters, $domain, $locale);
         $this->log($id, $domain, $locale);
 
         return $trans;
     }
 
     /**
      * {@inheritdoc}
      *
      * @deprecated since Symfony 4.2, use the trans() method instead with a %count% parameter
      */
     public function transChoice($id, $number, array $parameters = [], $domain = null, $locale = null)
     {
         @trigger_error(sprintf('The "%s()" method is deprecated since Symfony 4.2, use the trans() one instead with a "%%count%%" parameter.', __METHOD__), E_USER_DEPRECATED);
 
         if ($this->translator instanceof TranslatorInterface) {
             $trans = $this->translator->trans($id, ['%count%' => $number] + $parameters, $domain, $locale);
         } else {
             $trans = $this->translator->transChoice($id, $number, $parameters, $domain, $locale);
         }
 
         $this->log($id, $domain, $locale);
 
         return $trans;
     }
 
     /**
      * {@inheritdoc}
      */
     public function setLocale($locale)
     {
         $prev = $this->translator->getLocale();
         $this->translator->setLocale($locale);
         if ($prev === $locale) {
             return;
         }
 
         $this->logger->debug(sprintf('The locale of the translator has changed from "%s" to "%s".', $prev, $locale));
     }
 
     /**
      * {@inheritdoc}
      */
     public function getLocale()
     {
         return $this->translator->getLocale();
     }
 
     /**
      * {@inheritdoc}
      */
     public function getCatalogue($locale = null)
     {
         return $this->translator->getCatalogue($locale);
     }
 
     /**
      * Gets the fallback locales.
      *
      * @return array The fallback locales
      */
     public function getFallbackLocales()
     {
         if ($this->translator instanceof Translator || method_exists($this->translator, 'getFallbackLocales')) {
             return $this->translator->getFallbackLocales();
         }
 
         return [];
     }
 
     /**
      * Passes through all unknown calls onto the translator object.
      */
     public function __call($method, $args)
     {
         return $this->translator->{$method}(...$args);
     }
 
     /**
      * Logs for missing translations.
      *
      * @param string      $id
      * @param string|null $domain
      * @param string|null $locale
      */
     private function log($id, $domain, $locale)
     {
         if (null === $domain) {
             $domain = 'messages';
         }
 
         $id = (string) $id;
         $catalogue = $this->translator->getCatalogue($locale);
         if ($catalogue->defines($id, $domain)) {
             return;
         }
 
         if ($catalogue->has($id, $domain)) {
             $this->logger->debug('Translation use fallback catalogue.', ['id' => $id, 'domain' => $domain, 'locale' => $catalogue->getLocale()]);
         } else {
             $this->logger->warning('Translation not found.', ['id' => $id, 'domain' => $domain, 'locale' => $catalogue->getLocale()]);
         }
     }
 }