Function continuity_alignment_score

uncommon_route/router/quality.py:242–251

(
    candidate_quality: ServedQuality,
    previous_quality: ServedQuality | None,
)

def continuity_alignment_score(
    candidate_quality: ServedQuality,
    previous_quality: ServedQuality | None,
) -> float:
    if previous_quality is None:
        return 0.0
    delta = quality_rank(candidate_quality) - quality_rank(previous_quality)
    if delta >= 0:
        return 0.18 if delta == 0 else 0.08
    return -0.22 * abs(delta)


@dataclass(frozen=True, slots=True)