Fix car link: use airport coords and IATA instead of factory location

server.js

@@ -305,16 +305,17 @@ function generateHotelLink({ cityName, checkin, checkout, adults, refundableOnly
   return url;
 }
 
-function generateCarLink({ cityName, iataCode, pickupDate, dropoffDate, lat, lng }) {
+function generateCarLink({ cityName, iataCode, pickupDate, dropoffDate, lat, lng, airportName }) {
   const pu = new Date(pickupDate);
   const doDate = new Date(dropoffDate);
+  const displayName = airportName || (iataCode ? `Flughafen ${iataCode}` : cityName);
   const params = new URLSearchParams({
     preflang: 'de',
     prefcurrency: 'EUR',
     driversAge: '30',
-    locationName: iataCode ? `Flughafen ${cityName}` : cityName,
+    locationName: displayName,
     locationIata: iataCode || '',
-    dropLocationName: iataCode ? `Flughafen ${cityName}` : cityName,
+    dropLocationName: displayName,
     dropLocationIata: iataCode || '',
     puDay: pu.getUTCDate(),
     puMonth: pu.getUTCMonth() + 1,
@@ -438,10 +439,24 @@ app.post('/api/search', async (req, res) => {
   const hotelLink = generateHotelLink({
     cityName: destinationCity, checkin, checkout, adults, refundableOnly,
   });
+
+  // Flughafen-Koordinaten für Mietwagen (Abholung am Flughafen, nicht an der Fabrik)
+  let airportCoords = null;
+  let airportName = null;
+  if (destIATA) {
+    try {
+      const r = await geocodeAddress(`${destIATA} airport`);
+      airportCoords = r;
+      airportName = `Flughafen ${destIATA}`;
+    } catch (_) {}
+  }
+
   const carLink = generateCarLink({
     cityName: destinationCity, iataCode: destIATA,
     pickupDate: checkin, dropoffDate: checkout,
-    lat: destCoords?.lat, lng: destCoords?.lng,
+    lat: airportCoords?.lat ?? destCoords?.lat,
+    lng: airportCoords?.lng ?? destCoords?.lng,
+    airportName,
   });
 
   res.json({