feat: refactored accommodation booking status model

tests/Service/AccommodationBookingPdfGeneratorTest.php

@@ -36,6 +36,19 @@ class AccommodationBookingPdfGeneratorTest extends TestCase
         self::assertStringContainsString('buchung-2026-07-06-schulklasse-7b.pdf', (string) $response->headers->get('Content-Disposition'));
     }
 
+    public function testADocumentForAnUnacceptedOfferIsNamedAsOne(): void
+    {
+        // The document describes whatever the record is at the time it is produced, so it
+        // must not call an offer nobody has accepted a booking.
+        $booking = $this->booking();
+        $booking->setAcceptedAt(null);
+        $booking->setConfirmedAt(null);
+
+        $response = $this->createGenerator($this->breakdown())->createDownloadResponse($booking);
+
+        self::assertStringContainsString('angebot-2026-07-06-schulklasse-7b.pdf', (string) $response->headers->get('Content-Disposition'));
+    }
+
     public function testABookingWithoutPricesCannotBeRendered(): void
     {
         $this->expectException(\RuntimeException::class);
@@ -81,6 +94,9 @@ class AccommodationBookingPdfGeneratorTest extends TestCase
         $booking->setBoardServiceLabel('Vollpension');
         $booking->addAdditionalServiceSnapshot('Bettwäsche', 900, 'per_person', 5);
         $booking->setRemarks('Zwei Vegetarier.');
+        // A confirmation is only ever released for a booking the customer committed to,
+        // so acceptedAt is always set by the time confirmedAt is.
+        $booking->setAcceptedAt(new \DateTimeImmutable('2026-08-17'));
         $booking->setConfirmedAt(new \DateTimeImmutable('2026-08-18'));
 
         return $booking;