from thoughtsync.settings import REGISTRY, validate_updates


def test_registry_has_expected_keys():
    keys = {d.key for d in REGISTRY}
    assert {"site_name", "allow_registration", "session_ttl_days"} <= keys


def test_validate_rejects_unknown_key():
    clean, error = validate_updates({"nope": 1})
    assert error is not None
    assert clean == {}


def test_validate_coerces_bool_and_int():
    clean, error = validate_updates({"allow_registration": "true", "session_ttl_days": "45"})
    assert error is None
    assert clean["allow_registration"] is True
    assert clean["session_ttl_days"] == 45


def test_validate_rejects_bad_int():
    clean, error = validate_updates({"session_ttl_days": "not-a-number"})
    assert error is not None
    assert clean == {}