from __future__ import annotations

import time

from . import settings

_ACCESS_REQUEST_RATE: dict[str, list[float]] = {}


def rate_limit_allow(ip: str) -> bool:
    if settings.ACCESS_REQUEST_RATE_LIMIT <= 0:
        return True
    now = time.time()
    window_start = now - settings.ACCESS_REQUEST_RATE_WINDOW_SEC
    bucket = _ACCESS_REQUEST_RATE.setdefault(ip, [])
    bucket[:] = [t for t in bucket if t >= window_start]
    if len(bucket) >= settings.ACCESS_REQUEST_RATE_LIMIT:
        return False
    bucket.append(now)
    return True