added comments

Author: Michael-R-Dickinson

src/websocket/sockets.py

@@ -73,11 +73,13 @@ def process_drone_update(data: dict) -> None:
     from drone.models import DroneTelemetry
     from drone.serializers import DroneTelemetrySerializer
 
+    # Validate telemetry data
     telemetry = DroneTelemetrySerializer(data=data)
     telemetry.is_valid(raise_exception=True)
 
     telemetry.save()
 
+    # Drop records older than 5 minutes
     cutoff_time = (datetime.now() - timedelta(minutes=5)).timestamp()
     old_records = DroneTelemetry.objects.filter(timestamp__lt=int(cutoff_time))
     old_records.delete()