import time

from app.cache import FileCache


def test_cache_returns_fresh_entry(tmp_path) -> None:
    cache = FileCache(cache_dir=str(tmp_path), default_ttl_seconds=10)
    cache.set_json("sample", {"x": 1})

    entry = cache.get_json("sample")

    assert entry is not None
    assert entry.stale is False
    assert entry.value == {"x": 1}


def test_cache_can_serve_stale_when_requested(tmp_path) -> None:
    cache = FileCache(cache_dir=str(tmp_path), default_ttl_seconds=0)
    cache.set_json("sample", {"x": 1})
    time.sleep(0.01)

    fresh = cache.get_json("sample")
    stale = cache.get_json("sample", allow_stale=True)

    assert fresh is None
    assert stale is not None
    assert stale.stale is True
    assert stale.value == {"x": 1}