from __future__ import annotations

from fastapi.testclient import TestClient

from cloud_api.app import create_app
from cloud.control_config import CloudControlConfig


def test_create_app_returns_independent_cloud_application() -> None:
    app = create_app()

    assert app.title == "Device Cloud API"
    assert callable(create_app)


def test_cloud_application_owns_database_lifecycle() -> None:
    events: list[str] = []

    class FakeDatabase:
        def close(self) -> None:
            events.append("closed")

    fake_database = FakeDatabase()
    app = create_app(
        config=CloudControlConfig(database_url="sqlite:///:memory:"),
        database_factory=lambda _config: fake_database,  # type: ignore[arg-type,return-value]
    )

    with TestClient(app):
        assert app.state.database is fake_database
        assert events == []

    assert events == ["closed"]