Added twig extension to format file size, links to download and delete files attached to the book.

src/Controller/BookController.php

@@ -99,9 +99,9 @@ class BookController extends AbstractController
 
                     $ebook->move(
                         $this->getParameter('book_files'),
-                        'ebook_' . $book->getId() . '_' . md5(
-                            $ebook->getClientOriginalName()
-                        ) . '.' . $ebook->guessClientExtension()
+                        'ebook_' . $book->getId() . '_' .
+                        md5($file->getFileName()) . '.' .
+                        $file->getExtension()
                     );
                 }
             }
@@ -126,16 +126,4 @@ class BookController extends AbstractController
 
         return $this->redirectToRoute('app_book_index', [], Response::HTTP_SEE_OTHER);
     }
-
-    #[Route('/download/{id}', name: 'app_book_download', methods: ['GET'])]
-    public function downloadBook(Book $book): BinaryFileResponse
-    {
-        return $this->file(
-            $this->getParameter('book_files') . '/' . 'ebook_' . $book->getId() . '.' . pathinfo(
-                $book->getOriginalFilename(),
-                PATHINFO_EXTENSION
-            ),
-            $book->getOriginalFilename()
-        );
-    }
 }

src/Controller/FileController.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace App\Controller;
+
+use App\Entity\Book;
+use App\Entity\File;
+use App\Repository\FileRepository;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Component\HttpFoundation\BinaryFileResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Annotation\Route;
+
+class FileController extends AbstractController
+{
+    #[Route('/file', name: 'app_file')]
+    public function index(): Response
+    {
+        return $this->render('file/index.html.twig', [
+            'controller_name' => 'FileController',
+        ]);
+    }
+
+    #[Route('/file/delete/{id}', name: 'app_file_delete')]
+    public function delete(
+        Request $request,
+        FileRepository $fileRepository,
+        File $file,
+        Filesystem $filesystem
+    ): Response {
+        $filePath = $this->getParameter('book_files') . '/' . 'ebook_' . $file->getBook()->getId() . '_' .
+            md5($file->getFileName()) . '.' .
+            $file->getExtension();
+        $filesystem->remove($filePath);
+
+        if (!$filesystem->exists($filePath)) {
+            $fileRepository->remove($file, 'true');
+        }
+        return $this->redirect($request->headers->get('referer'));
+    }
+
+    #[Route('/file/{id}', name: 'app_file_download', methods: ['GET'])]
+    public function get(File $file)
+    {
+        return $this->file(
+            $filePath = $this->getParameter('book_files') . '/' . 'ebook_' . $file->getBook()->getId() . '_' .
+                md5($file->getFileName()) . '.' .
+                $file->getExtension(),
+            $file->getFileName()
+        );
+    }
+}

src/Twig/AppExtension.php

@@ -4,6 +4,7 @@
 namespace App\Twig;
 
 use Twig\Extension\AbstractExtension;
+use Twig\TwigFilter;
 use Twig\TwigFunction;
 
 class AppExtension extends AbstractExtension
@@ -15,8 +16,22 @@ class AppExtension extends AbstractExtension
         ];
     }
 
+    public function getFilters()
+    {
+        return [
+            new TwigFilter('bytes_format', [$this, 'bytes_format']),
+        ];
+    }
+
     public function file_exists(string $file): bool
     {
         return file_exists(ltrim($file, '/'));
     }
+
+    public function bytes_format(int $bytes): string
+    {
+        $base = log($bytes) / log(1024);
+        $suffix = array("B", "KB", "MB", "GB", "TB")[floor($base)];
+        return round(pow(1024, $base - floor($base)), 2) . $suffix;
+    }
 }