Update guest v2 branding and theming

app/Http/Controllers/Api/EventPublicController.php

@@ -41,6 +41,7 @@ use Illuminate\Support\Facades\Schema;
 use Illuminate\Support\Facades\Storage;
 use Illuminate\Support\Facades\URL;
 use Illuminate\Support\Str;
+use SimpleSoftwareIO\QrCode\Facades\QrCode;
 use Symfony\Component\HttpFoundation\Response;
 
 class EventPublicController extends BaseController
@@ -1734,6 +1735,7 @@ class EventPublicController extends BaseController
                 'name' => $event->name,
                 'city' => $event->city,
             ] : null,
+            'branding' => $event ? $this->resolveBrandingPayload($event) : null,
         ])->header('Cache-Control', 'no-store');
     }
 
@@ -1980,6 +1982,47 @@ class EventPublicController extends BaseController
         ])->header('Cache-Control', 'no-store');
     }
 
+    public function qr(Request $request, string $token): JsonResponse
+    {
+        $result = $this->resolvePublishedEvent($request, $token, ['id']);
+
+        if ($result instanceof JsonResponse) {
+            return $result;
+        }
+
+        [, $joinToken] = $result;
+
+        $joinTokenValue = $joinToken->token ?? $token;
+        $qrCodeUrl = $joinTokenValue ? url('/e/'.$joinTokenValue) : null;
+        $qrCodeDataUrl = null;
+
+        if ($qrCodeUrl) {
+            $requestedSize = (int) $request->query('size', 360);
+            $size = max(120, min($requestedSize, 640));
+
+            try {
+                $png = QrCode::format('png')
+                    ->size($size)
+                    ->margin(1)
+                    ->errorCorrection('M')
+                    ->generate($qrCodeUrl);
+
+                $pngBinary = (string) $png;
+
+                if ($pngBinary !== '') {
+                    $qrCodeDataUrl = 'data:image/png;base64,'.base64_encode($pngBinary);
+                }
+            } catch (\Throwable $exception) {
+                report($exception);
+            }
+        }
+
+        return response()->json([
+            'url' => $qrCodeUrl,
+            'qr_code_data_url' => $qrCodeDataUrl,
+        ])->header('Cache-Control', 'no-store');
+    }
+
     public function package(Request $request, string $token)
     {
         $result = $this->resolvePublishedEvent($request, $token, ['id']);