Function _update_drift_state

scripts/drift_engine.py:1380–1409

鏇存柊鍥涢樁娈垫紓绉绘祦绋嬶細 stable -> shifting -> recovered -> stable 姝ｅ悜婕傜Щ鎻愬崌 score锛屾仮澶嶈繃绋嬮檷浣?score銆?

(
    profile: Dict[str, Any],
    date: Optional[str],
    score_delta: float = 0.2,
)

def _update_drift_state(
    profile: Dict[str, Any],
    date: Optional[str],
    score_delta: float = 0.2,
) -> Dict[str, Any]:
    """
    鏇存柊鍥涢樁娈垫紓绉绘祦绋嬶細
    stable -> shifting -> recovered -> stable
    姝ｅ悜婕傜Щ鎻愬崌 score锛屾仮澶嶈繃绋嬮檷浣?score銆?    """
    drift_state = profile.get("drift_state", {}) or {}
    old_score = float(drift_state.get("score", 0) or 0)
    old_status = str(drift_state.get("status") or "stable")
    new_score = max(0.0, min(1.0, old_score + score_delta))

    if score_delta >= 0:
        status = "shifting" if new_score >= DRIFT_SHIFT_THRESHOLD else "stable"
    else:
        if old_status == "shifting":
            status = "stable" if new_score <= DRIFT_STABLE_THRESHOLD else "recovered"
        elif old_status == "recovered":
            status = "stable" if new_score <= DRIFT_STABLE_THRESHOLD else "recovered"
        else:
            status = "stable"

    final_score = 0.0 if status == "stable" else round(new_score, 2)
    return {
        "status": status,
        "score": final_score,
        "last_drift_date": date,
    }


def to_display_drift_status(status: Optional[str]) -> str:
    normalized = str(status or "stable").strip() or "stable"