From f22bff7adc3199e56d544050d010de3769e27fbc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20B=C3=B6hmer?= <mail@jan-boehmer.de>
Date: Sun, 22 Feb 2026 00:28:58 +0100
Subject: [PATCH] Fixed modeEnum parsing

---
 src/Controller/ScanController.php | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/Controller/ScanController.php b/src/Controller/ScanController.php
index 330c50d5..903a7d01 100644
--- a/src/Controller/ScanController.php
+++ b/src/Controller/ScanController.php
@@ -309,7 +309,15 @@ class ScanController extends AbstractController
         $this->denyAccessUnlessGranted('@tools.label_scanner');
 
         $input = trim($request->request->getString('input', ''));
-        $modeEnum  = $request->request->getEnum('mode', BarcodeSourceType::class);
+
+        // We cannot use getEnum here, because we get an empty string for mode, when auto mode is selected
+        $mode  = $request->request->getString('mode', BarcodeSourceType::class, '');
+        if ($mode === '') {
+            $modeEnum = null;
+        } else {
+            $modeEnum = BarcodeSourceType::from($mode); // validate enum value; will throw if invalid
+        }
+
         $infoMode = $request->request->getBoolean('info_mode', false);
 
         if ($input === '') {