"""直近で取得した「明日の天気」データをメモリ上にキャッシュする。"""
from datetime import datetime

_latest: dict | None = None


def set_latest(weather: str, pop: int | None, judgement: str, reason: str) -> None:
    global _latest
    _latest = {
        "weather": weather,
        "pop": pop,
        "judgement": judgement,
        "reason": reason,
        "fetched_at": datetime.now().isoformat(),
    }


def get_latest() -> dict | None:
    return _latest