"""Query cache com TTL."""
from __future__ import annotations
import time
from typing import Any
class QueryCache:
"""Cache simples baseado em dict com TTL por entrada."""
def __init__(self, ttl_seconds: int = 3600) -> None:
self._store: dict[str, tuple[Any, float]] = {}
self._ttl = ttl_seconds
def has(self, key: str) -> bool:
if key not in self._store:
return False
_, ts = self._store[key]
if time.monotonic() - ts > self._ttl:
del self._store[key]
return False
return True
def get(self, key: str) -> Any | None:
if not self.has(key):
return None
return self._store[key][0]
def set(self, key: str, value: Any) -> None:
self._store[key] = (value, time.monotonic())
def clear(self) -> None:
self._store.clear()
@property
def size(self) -> int:
return len(self._store)
