FEATURE_NAMES = [
    "angle",
    "distance",
    "contrast",
    "blur",
    "snr",
    "saturation",
]


def select_visibility_indices(feature_names, selected_names):
    if selected_names is None:
        return list(range(len(feature_names)))

    if all(isinstance(item, int) for item in selected_names):
        return list(selected_names)

    index_by_name = {name: idx for idx, name in enumerate(feature_names)}
    return [index_by_name[name] for name in selected_names]