feat(dump): add download functionality for dumps and improve UI interactions

src/Controller/DumpController.php

@@ -9,8 +9,11 @@ use AeonDumpManager\Service\DumpService;
 use AeonDumpManager\Service\Exception\DumpNotFoundException;
 use Shopware\Core\Framework\Routing\ApiRouteScope;
 use Shopware\Core\PlatformRequest;
+use Symfony\Component\HttpFoundation\HeaderUtils;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpFoundation\StreamedResponse;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\Messenger\MessageBusInterface;
 use Symfony\Component\Routing\Annotation\Route;
 
@@ -77,6 +80,32 @@ class DumpController
         return new JsonResponse(null, Response::HTTP_NO_CONTENT);
     }
 
+    #[Route(
+        path: '/api/_action/aeon-dump-manager/dumps/{filename}/download',
+        name: 'api.action.aeon_dump_manager.dumps.download',
+        defaults: [PlatformRequest::ATTRIBUTE_ACL => ['aeon_dump_manager.viewer']],
+        methods: ['GET']
+    )]
+    public function download(string $filename): StreamedResponse
+    {
+        try {
+            $stream = $this->dumpService->readStream($filename);
+        } catch (DumpNotFoundException $exception) {
+            throw new NotFoundHttpException($exception->getMessage());
+        }
+
+        $response = new StreamedResponse(static function () use ($stream): void {
+            fpassthru($stream);
+        });
+        $response->headers->set('Content-Type', 'application/gzip');
+        $response->headers->set(
+            'Content-Disposition',
+            HeaderUtils::makeDisposition(HeaderUtils::DISPOSITION_ATTACHMENT, $filename)
+        );
+
+        return $response;
+    }
+
     #[Route(
         path: '/api/_action/aeon-dump-manager/dumps/jobs/{jobId}',
         name: 'api.action.aeon_dump_manager.dumps.jobs.status',