feat: add raw contingent availability endpoint

src/Controller/Api/ContingentController.php

@@ -133,6 +133,47 @@ class ContingentController extends AbstractController
         return $this->json($data);
     }
 
+    /**
+     * The snapshot as it is, for the iCal feed: no price rule, and days the snapshot lacks are
+     * left out rather than blocked, so a portal shows them as free like it did with the feed
+     * that read bpn-connect directly.
+     */
+    #[Route(path: '/contingents/availability', name: 'api_contingents_availability', methods: ['GET'])]
+    public function availability(
+        #[MapQueryString(validationFailedStatusCode: Response::HTTP_BAD_REQUEST)]
+        ContingentCalendarQuery $query,
+    ): JsonResponse {
+        $accommodation = $this->accommodationRepository->findOneBy(['calendarCode' => $query->hotelCode]);
+
+        if (null === $accommodation) {
+            $this->logger->error('Hotel not found for hotelcode '.$query->hotelCode);
+
+            return $this->json(['error' => 'Hotel not found for hotelCode.'], Response::HTTP_BAD_REQUEST);
+        }
+
+        // Without a range: from today to wherever the snapshot ends.
+        $dateFrom = $query->dateFromDate() ?? CarbonImmutable::now()->setTime(0, 0);
+        $dateTo = $query->dateToDate();
+
+        // Same reasoning as calendar(): a missing or stale snapshot must not pass for real data.
+        // Here it matters even more, since an empty feed would show every day as free.
+        $statuses = $this->snapshotReader->statusesFor($accommodation, $dateFrom, $dateTo);
+
+        if (null === $statuses) {
+            return $this->json(['error' => 'Failed to fetch contingent data.'], Response::HTTP_BAD_GATEWAY);
+        }
+
+        ksort($statuses);
+
+        $data = [];
+
+        foreach ($statuses as $date => $status) {
+            $data[] = ['date' => (string) $date, 'status' => $status->value];
+        }
+
+        return $this->json($data);
+    }
+
     /**
      * @param AccommodationPrice[] $prices
      * @param array<string, true>  $covered