import asyncio

from config_manager.v2 import ConfigManagerV2, ManagementServerSettings


class ReloadApp(ConfigManagerV2):
    DEFAULT_UPDATE_INTERVAL = 0.05
    DEFAULT_WORK_INTERVAL = 0.2

    def execute(self) -> None:
        return


def test_invalid_config_keeps_last_valid(tmp_path):
    async def scenario() -> None:
        cfg = tmp_path / "config.yaml"
        cfg.write_text("log: {}\n", encoding="utf-8")

        app = ReloadApp(str(cfg), management_settings=ManagementServerSettings(enabled=False))
        runner = asyncio.create_task(app.start())

        await asyncio.sleep(0.12)
        assert app.work_interval == 0.2
        assert app.update_interval == 0.05

        cfg.write_text("work_interval: [broken\n", encoding="utf-8")
        await asyncio.sleep(0.15)

        assert app.work_interval == 0.2
        assert app.update_interval == 0.05
        assert isinstance(app.config, dict)

        await app.stop()
        await runner

    asyncio.run(scenario())