update

backend/src/controllers/booking.controller.ts

@@ -25,8 +25,12 @@ function handleZodError(res: Response, err: ZodError): void {
 }
 
 function handleConflictError(res: Response, err: Error): boolean {
+  if (err.message?.includes('außer Dienst')) {
+    res.status(409).json({ success: false, message: err.message, reason: 'out_of_service' });
+    return true;
+  }
   if (err.message?.includes('bereits gebucht')) {
-    res.status(409).json({ success: false, message: err.message });
+    res.status(409).json({ success: false, message: err.message, reason: 'booking_conflict' });
     return true;
   }
   return false;
@@ -88,10 +92,27 @@ class BookingController {
           .json({ success: false, message: 'fahrzeugId, from und to sind erforderlich' });
         return;
       }
+      const beginn = new Date(from as string);
+      const ende   = new Date(to as string);
+
+      const outOfService = await bookingService.checkOutOfServiceConflict(
+        fahrzeugId as string, beginn, ende
+      );
+      if (outOfService) {
+        res.json({
+          success: true,
+          data: {
+            available: false,
+            reason: 'out_of_service',
+            ausserDienstVon: outOfService.ausser_dienst_von.toISOString(),
+            ausserDienstBis: outOfService.ausser_dienst_bis.toISOString(),
+          },
+        });
+        return;
+      }
+
       const hasConflict = await bookingService.checkConflict(
-        fahrzeugId as string,
-        new Date(from as string),
-        new Date(to as string)
+        fahrzeugId as string, beginn, ende
       );
       res.json({ success: true, data: { available: !hasConflict } });
     } catch (error) {