Extracting and testing logic to find a folder or make a root folder to the folder repository

Modules/Media/Http/Controllers/Api/MoveMediaController.php

@@ -37,7 +37,7 @@ class MoveMediaController extends Controller
 
     public function __invoke(MoveMediaRequest $request)
     {
-        $destination = $this->getDestinationFolder($request->get('destinationFolder'));
+        $destination = $this->folder->findFolderOrRoot($request->get('destinationFolder'));
 
         $failedMoves = 0;
         foreach ($request->get('files') as $file) {
@@ -50,27 +50,4 @@ class MoveMediaController extends Controller
             'folder_id' => $destination->id,
         ]);
     }
-
-    private function makeRootFolder() : File
-    {
-        return new File([
-            'id' => 0,
-            'folder_id' => 0,
-            'path' => config('asgard.media.config.files-path'),
-        ]);
-    }
-
-    /**
-     * @param int $destinationFolderId
-     * @return File
-     */
-    protected function getDestinationFolder($destinationFolderId) : File
-    {
-        $destination = $this->folder->findFolder($destinationFolderId);
-        if ($destination === null) {
-            $destination = $this->makeRootFolder();
-        }
-
-        return $destination;
-    }
 }

Modules/Media/Repositories/Eloquent/EloquentFolderRepository.php

@@ -107,6 +107,23 @@ class EloquentFolderRepository extends EloquentBaseRepository implements FolderR
         return $folder;
     }
 
+    /**
+     * Find the folder by ID or return a root folder
+     * which is an instantiated File class
+     * @param int $folderId
+     * @return File
+     */
+    public function findFolderOrRoot($folderId): File
+    {
+        $destination = $this->findFolder($folderId);
+
+        if ($destination === null) {
+            $destination = $this->makeRootFolder();
+        }
+
+        return $destination;
+    }
+
     private function getNewPathFor(string $filename, File $folder)
     {
         return $this->removeDoubleSlashes($folder->path->getRelativeUrl() . '/' . str_slug($filename));
@@ -132,4 +149,17 @@ class EloquentFolderRepository extends EloquentBaseRepository implements FolderR
 
         return config('asgard.media.config.files-path') . str_slug(array_get($data, 'name'));
     }
+
+    /**
+     * Create an instantiated File entity, appointed as root
+     * @return File
+     */
+    private function makeRootFolder() : File
+    {
+        return new File([
+            'id' => 0,
+            'folder_id' => 0,
+            'path' => config('asgard.media.config.files-path'),
+        ]);
+    }
 }

Modules/Media/Repositories/FolderRepository.php

@@ -25,4 +25,12 @@ interface FolderRepository extends BaseRepository
     public function allNested() : NestedFoldersCollection;
 
     public function move(File $folder, File $destination) : File;
+
+    /**
+     * Find the folder by ID or return a root folder
+     * which is an instantiated File class
+     * @param int $folderId
+     * @return File
+     */
+    public function findFolderOrRoot($folderId) : File;
 }

Modules/Media/Tests/EloquentFolderRepositoryTest.php

@@ -330,6 +330,22 @@ final class EloquentFolderRepositoryTest extends MediaTestCase
         $this->assertCount(2, File::all());
     }
 
+    /** @test */
+    public function it_finds_a_folder_or_returns_a_root_folder()
+    {
+        $this->folder->create(['name' => 'My Folder']);
+
+        $foundFolder = $this->folder->findFolderOrRoot(1);
+        $this->assertInstanceOf(File::class, $foundFolder);
+        $this->assertEquals('My Folder', $foundFolder->filename);
+        $this->assertTrue($foundFolder->exists);
+        $notFolder = $this->folder->findFolderOrRoot(0);
+        $this->assertFalse($notFolder->exists);
+        $this->assertEquals(0, $notFolder->id);
+        $this->assertEquals(0, $notFolder->folder_id);
+        $this->assertEquals(config('asgard.media.config.files-path'), $notFolder->path->getRelativeUrl());
+    }
+
     private function createFile($fileName = 'random/name.jpg')
     {
         return File::create([