refactor to use either timestamp when one is undefined

server/src/controller/ttnController.ts

@@ -42,21 +42,22 @@ router.post(
           )?.measurementValue,
         });
 
+      const messageData = message.uplink_message.decoded_payload?.messages[0];
+
+      const latitudeData = messageData?.find((e) => e.type === "Latitude");
+      const longitudeData = messageData?.find((e) => e.type === "Longitude");
+
       const gnnsLocation = {
-        latitude: message.uplink_message.decoded_payload?.messages[0].find(
-          (e) => e.type === "Latitude"
-        )?.measurementValue,
-        longitude: message.uplink_message.decoded_payload?.messages[0].find(
-          (e) => e.type === "Longitude"
-        )?.measurementValue,
+        latitude: latitudeData?.measurementValue,
+        longitude: longitudeData?.measurementValue,
       };
 
-      const gnssMetadata = message.uplink_message.decoded_payload?.messages[0].find(
-        (e) => e.type === "Latitude"
-      );
-
       const gnssTimestamp = {
-        timestamp: gnssMetadata?.timestamp ? new Date(gnssMetadata.timestamp) : undefined
+        timestamp: latitudeData?.timestamp
+          ? new Date(latitudeData.timestamp)
+          : longitudeData?.timestamp
+          ? new Date(longitudeData.timestamp)
+          : undefined,
       };
 
       const wifiScans =
@@ -102,10 +103,9 @@ router.post(
           gnss:
             gnnsLocation.latitude && gnnsLocation.longitude
               ? {
-                latitude: gnnsLocation.latitude,
-                longitude: gnnsLocation.longitude,
-
-              }
+                  latitude: gnnsLocation.latitude,
+                  longitude: gnnsLocation.longitude,
+                }
               : undefined,
           gnss_timestamp: gnssTimestamp.timestamp,
         });