fix: prevent generating offer links while booking is in draft

src/Service/AccommodationBookingService.php

@@ -436,12 +436,18 @@ class AccommodationBookingService
     }
 
     /**
-     * Sets accessLinkIssuedAt if the booking doesn't have one yet, whatever its status.
-     * No email side effect — the confirmation email is always sent separately via
-     * sendCustomerConfirmationEmail(), regardless of whether a link exists.
+     * Sets accessLinkIssuedAt if the booking doesn't have one yet. No email side effect — the
+     * confirmation email is always sent separately via sendCustomerConfirmationEmail(),
+     * regardless of whether a link exists.
+     * A no-op while the record is not customer accessible: a draft has nothing to show yet, so
+     * publishing the offer (sendOffer()) moves it out of Entwurf before asking for a link.
      */
     public function issueAccessLink(AccommodationBooking $booking): void
     {
+        if (!$booking->isCustomerAccessible()) {
+            return;
+        }
+
         if (null !== $booking->getAccessLinkIssuedAt()) {
             return;
         }
@@ -489,9 +495,15 @@ class AccommodationBookingService
      * Explicit admin action: (re)issues the access link, invalidating any previously issued
      * link for this booking. No email side effect — sending is a separate, explicit admin
      * action via sendCustomerConfirmationEmail().
+     * A no-op for a record that is not customer accessible yet, for the same reason as
+     * issueAccessLink().
      */
     public function regenerateAccessLink(AccommodationBooking $booking): void
     {
+        if (!$booking->isCustomerAccessible()) {
+            return;
+        }
+
         $booking->setAccessLinkIssuedAt(new \DateTimeImmutable());
         $this->entityManager->flush();
     }
@@ -509,8 +521,10 @@ class AccommodationBookingService
             return;
         }
 
-        $this->issueAccessLink($booking);
+        // Offen first: the status is what makes the record customer accessible, and only then
+        // will issueAccessLink() hand out a link (it flushes both changes together).
         $booking->setStatus(AccommodationBookingStatus::Open);
+        $this->issueAccessLink($booking);
         $this->entityManager->flush();
 
         $this->sendCustomerConfirmationEmail($booking);