From bf9afd143dfa3a46f16106aaa3df97115a0d4de7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Fromme?= <bjoern.fromme@ep-reisen.de>
Date: Thu, 29 Oct 2026 14:45:44 +0100
Subject: [PATCH] feat: API lists the calendar hotels for the contingent sync
 of MyE&P

GET /api/calendar-hotels returns the calendar hotel of every visible
product, with the products using it and their season, behind the same
API key as /api/hotel and /api/product.

MyE&P only syncs contingent snapshots for its accommodations, so hotels
that are only offered in winter (e.g. DKI, DWW, ASCGR) have no
availability for the iCal feed and the availability calendar. With this
list MyE&P can sync every hotel code TYPO3 actually uses, without a
second list to maintain. The products and seasons are for a status
overview of which hotel supports iCal, availability and prices.

Hidden hotels are left out, as on the website (e.g. ASB).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 .../Classes/Middleware/ApiMiddleware.php      | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/packages/ep_products/Classes/Middleware/ApiMiddleware.php b/packages/ep_products/Classes/Middleware/ApiMiddleware.php
index 86d847d..1344d8a 100644
--- a/packages/ep_products/Classes/Middleware/ApiMiddleware.php
+++ b/packages/ep_products/Classes/Middleware/ApiMiddleware.php
@@ -43,6 +43,10 @@ class ApiMiddleware implements MiddlewareInterface
             return $this->handleProductRequest($request);
         }
 
+        if ('/api/calendar-hotels' === $path) {
+            return $this->handleCalendarHotelsRequest($request);
+        }
+
         if (str_starts_with($path, ContentFeedApi::PATH_PREFIX)) {
             return $this->contentFeedApi->handle($request);
         }
@@ -97,6 +101,51 @@ class ApiMiddleware implements MiddlewareInterface
         return new JsonResponse($data);
     }
 
+    /**
+     * The calendar hotels of all visible products, for the contingent sync of MyE&P: their
+     * availability is needed for the iCal feed and the availability calendar, whether or not
+     * MyE&P has an accommodation with prices for them.
+     */
+    private function handleCalendarHotelsRequest(ServerRequestInterface $request): ResponseInterface
+    {
+        if (!$this->authenticator->isAuthorized($request)) {
+            return new JsonResponse(['message' => 'Invalid or missing api key'], 403);
+        }
+
+        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
+            ->getQueryBuilderForTable('tx_epproducts_domain_model_product');
+
+        $rows = $queryBuilder
+            ->select('hotel.code', 'hotel.name AS hotelName', 'product.uid', 'product.name', 'product.season')
+            ->from('tx_epproducts_domain_model_product', 'product')
+            ->join('product', 'tx_epproducts_domain_model_hotel', 'hotel', 'hotel.uid = product.calendar_hotel')
+            ->where(
+                $queryBuilder->expr()->eq('product.sys_language_uid', 0),
+                $queryBuilder->expr()->neq('hotel.code', $queryBuilder->createNamedParameter('')),
+            )
+            ->orderBy('hotel.code')
+            ->addOrderBy('product.uid')
+            ->executeQuery()
+            ->fetchAllAssociative();
+
+        $hotels = [];
+        foreach ($rows as $row) {
+            $code = trim((string)$row['code']);
+            $hotels[$code] ??= [
+                'code' => $code,
+                'name' => trim((string)preg_replace('/\s+/', ' ', (string)$row['hotelName'])),
+                'products' => [],
+            ];
+            $hotels[$code]['products'][] = [
+                'uid' => (int)$row['uid'],
+                'name' => trim((string)preg_replace('/\s+/', ' ', (string)$row['name'])),
+                'season' => '' !== (string)$row['season'] ? (string)$row['season'] : null,
+            ];
+        }
+
+        return new JsonResponse(array_values($hotels));
+    }
+
     private function fetchProductData(string $productCode): ?array
     {
         $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)