Start converting some enum-like strings to proper enums, plus global reformat

core/utils.py

@@ -15,7 +15,7 @@ from core.constants import (
     UNKNOWN_BAND,
 )
 from core.data_store import DATA_STORE
-from core.enums import Continent
+from core.enums import Continent, ModeType
 from data.callsign import Callsign, LocationSourceForCallsign
 
 logger = logging.getLogger(__name__)
@@ -44,11 +44,11 @@ def infer_mode_type_from_mode(mode):
     """Infer a "mode family" from a mode."""
 
     if mode.upper() in CW_MODES:
-        return "CW"
+        return ModeType.CW
     elif mode.upper() in PHONE_MODES:
-        return "PHONE"
+        return ModeType.PHONE
     elif mode.upper() in DATA_MODES:
-        return "DATA"
+        return ModeType.DATA
     else:
         if mode.upper() != "OTHER" and mode != "?":
             logger.warning(f"Found an unrecognised mode: {mode}. Developer should categorise this.")