Fix GeoService errors when viewing PIREP #498 (#499)

app/Services/GeoService.php

@@ -231,11 +231,23 @@ class GeoService extends Service
             ]);
         }*/
 
-        return [
-            'position' => [
+        // If there is a position update from ACARS, show where it is
+        // Otherwise, just assume it's at the arrival airport currently
+        if ($pirep->position) {
+            $position = [
                 'lat' => $pirep->position->lat,
                 'lon' => $pirep->position->lon,
-            ],
+            ];
+        } else {
+            // if arrived, show it being at the arrival airport
+            $position = [
+                'lat' => $pirep->arr_airport->lat,
+                'lon' => $pirep->arr_airport->lon,
+            ];
+        }
+
+        return [
+            'position' => $position,
             'line'     => $route->getLine(),
             'points'   => $route->getPoints(),
             'airports' => [