Ajout de la traduction (#15)

Co-authored-by: hugo.pradier2 <hugo.pradier2@etu.uca.fr>
Co-authored-by: clfreville2 <clement.freville2@etu.uca.fr>
Reviewed-on: https://codefirst.iut.uca.fr/git/clement.freville2/herbarium/pulls/15
Reviewed-by: Clément FRÉVILLE <clement.freville2@etu.uca.fr>
Co-authored-by: Hugo PRADIER <hugo.pradier2@etu.uca.fr>
Co-committed-by: Hugo PRADIER <hugo.pradier2@etu.uca.fr>

src/Controller/SettingController.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Controller;
+
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+use Symfony\Component\Translation\LocaleSwitcher;
+
+class SettingController extends AbstractController
+{
+    #[Route('/setting/{locale}', name: 'app_setting_locale')]
+    public function index(LocaleSwitcher $localeSwitcher, string $locale, Request $request): Response
+    {
+        $localeSwitcher->setLocale($locale);
+        $request->getSession()->set('_locale', $locale);
+        return $this->redirectToRoute('app_posts');
+    }
+}

src/EventListener/LocaleListener.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\EventListener;
+
+use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
+use Symfony\Component\HttpKernel\Event\RequestEvent;
+use Symfony\Component\HttpKernel\KernelEvents;
+use Symfony\Component\Translation\LocaleSwitcher;
+
+final readonly class LocaleListener
+{
+    public function __construct(private LocaleSwitcher $localeSwitcher)
+    {
+    }
+
+    #[AsEventListener(event: KernelEvents::REQUEST)]
+    public function onKernelRequest(RequestEvent $event): void
+    {
+        $request = $event->getRequest();
+        if ($request->attributes->getBoolean('_stateless')) {
+            return;
+        }
+        $locale = $request->getSession()->get('_locale');
+        if ($locale !== null) {
+            $this->localeSwitcher->setLocale($locale);
+        }
+    }
+}