from __future__ import annotations

import httpx


def classify_response(status: int) -> tuple[bool, bool]:
    """Return (ok, permanent_failure)."""
    if 200 <= status < 300:
        return True, False
    if 400 <= status < 500 and status not in (408, 425, 429):
        return False, True
    return False, False


def classify_exception(exc: Exception) -> tuple[bool, bool]:
    if isinstance(exc, httpx.TimeoutException | httpx.NetworkError):
        return False, False
    return False, False