from app.services.subscription import ClientVersion, SubscriptionClient, SubscriptionError


def test_user_agent_and_enrollment_url() -> None:
    values: dict[str, str] = {}
    client = SubscriptionClient(values.get, values.__setitem__, ClientVersion(1, 7))
    result = client.enroll_url("https://sub.example.com/d/123e4567-e89b-12d3-a456-426614174000?enroll=secret")
    assert result["subscription_url"].endswith("/d/123e4567-e89b-12d3-a456-426614174000")
    assert values["device_token"] == "secret"
    assert client.version.user_agent(values["device_id"]).startswith("vpnapp/v1.7/")


def test_invalid_enrollment_url() -> None:
    values: dict[str, str] = {}
    client = SubscriptionClient(values.get, values.__setitem__)
    try:
        client.enroll_url("https://sub.example.com/not-an-enrollment")
    except SubscriptionError:
        pass
    else:
        raise AssertionError("invalid enrollment URL must be rejected")