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

data/spot.py

@@ -12,7 +12,7 @@ from pyhamtools.locator import latlong_to_locator, locator_to_latlong
 from core.call_lookup_helper import get_call_info
 from core.config import MAX_SPOT_AGE
 from core.constants import MODE_ALIASES, PROPAGATION_MODES, SIGS
-from core.enums import Continent, LocationSourceForSpot, ModeSource
+from core.enums import Continent, LocationSourceForSpot, ModeSource, ModeType
 from core.geo_utils import lat_lon_to_cq_zone, lat_lon_to_itu_zone
 from core.sig_lookup_helper import populate_missing_sig_ref_info
 from core.sig_utils import (
@@ -104,9 +104,9 @@ class Spot:
 
     # Reported mode, such as SSB, PHONE, CW, FT8...
     mode: str | None = None
-    # Inferred mode "family". One of "CW", "PHONE" or "DIGI".
-    mode_type: str | None = None
-    # Source of the mode information. "SPOT", "COMMENT", "BANDPLAN" or "NONE"
+    # Inferred mode "family".
+    mode_type: ModeType = ModeType.UNKNOWN
+    # Source of the mode information.
     mode_source: ModeSource = ModeSource.NONE
     # Frequency, in Hz
     freq: float | None = None