Fix nacitani trasy pro plan jen s jednim bodem

src/graphql_schema/entities/types/types.py

@@ -190,16 +190,20 @@ class FlightPlanMarker:
 
 @strawberry.type
 class FlightPlanTrack:
-    bearing: int
-    distance: float
+    bearing: Optional[int]
+    distance: Optional[float]
     from_: FlightPlanMarker = strawberry.field(name="from")
-    to: FlightPlanMarker
+    to: Optional[FlightPlanMarker]
 
 
 @strawberry_sqlalchemy_type(model=models.FlightPlan)
 class FlightPlan:
     async def resolve_track(self):
         markers = await self.markers()
+
+        if len(markers) == 1:
+            return [FlightPlanTrack(bearing=None, distance=None, from_=markers[0], to=None)]
+
         navigation = []
         for i in range(len(markers) - 1):
             from_ = markers[i]