add site to view and upload files

Reviewed-on: sites/file-explorer#4

src/Controller/UploadController.php

@@ -0,0 +1,31 @@
+<?php
+declare(strict_types=1);
+
+namespace App\Controller;
+
+use App\Forms\UploadFileForm;
+use App\Objects\UploadedFileData;
+use App\Service\FileSystemService;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+
+class UploadController extends AbstractController
+{
+    #[Route(path: '/upload', name: 'app_upload', methods: Request::METHOD_POST)]
+    public function __invoke(
+        FileSystemService $fileSystemService,
+        Request $request,
+    ): Response
+    {
+        $fileData = new UploadedFileData();
+        $form  = $this->createForm(UploadFileForm::class, $fileData)->handleRequest($request);
+
+        if ($form->isSubmitted() && $form->isValid()) {
+            $fileSystemService->uploadFile($fileData->file);
+        }
+
+        return $this->redirectToRoute('app_home');
+    }
+}