"""Sport name normalisation."""

_MAPPING: dict[str, str] = {
    # cycling variants
    "cycling": "cycling",
    "biking": "cycling",
    "bike": "cycling",
    "road_biking": "cycling",
    "mountain_biking": "cycling",
    "gravel_cycling": "cycling",
    "cyclocross": "cycling",
    "indoor_cycling": "cycling",
    "virtual_ride": "cycling",
    "e-biking": "cycling",
    # running
    "running": "running",
    "run": "running",
    "trail_running": "running",
    "treadmill_running": "running",
    "virtual_run": "running",
    # hiking
    "hiking": "hiking",
    "hike": "hiking",
    # walking
    "walking": "walking",
    "walk": "walking",
    # swimming
    "swimming": "swimming",
    "swim": "swimming",
    "open_water_swimming": "swimming",
}

BAS_SPORTS = {"cycling", "running", "hiking", "walking", "swimming", "other"}


def normalise_sport(raw: object) -> str:
    if raw is None:
        return "other"
    key = str(raw).lower().strip().replace(" ", "_")
    return _MAPPING.get(key, "other")