import unittest
from unittest.mock import Mock, patch

from modules import app_account, app_car, app_device_sync


class RuntimeDeviceConfigReloadTest(unittest.TestCase):
    @patch.object(app_account.Account, "_load_config", return_value={})
    @patch("modules.app_device_config.get_device_config")
    def test_account_reload_runtime_config_uses_live_settings(
        self,
        get_device_config,
        _load_config,
    ):
        account = app_account.Account()
        get_device_config.return_value = {
            "owner_name": "alice",
            "avatar_path": "img/alice.png",
        }

        account.reload_runtime_config()

        self.assertEqual(account.name, "alice")
        self.assertEqual(account.avatar_path, "img/alice.png")

    @patch.object(app_car.Car, "_load_config", return_value={})
    @patch("modules.app_device_config.get_device_config")
    def test_car_reload_runtime_config_uses_live_settings(
        self,
        get_device_config,
        _load_config,
    ):
        car = app_car.Car()
        get_device_config.return_value = {
            "car_model": "Corolla",
            "device_name": "Garage Pi",
        }

        car.reload_runtime_config()

        self.assertEqual(car.model, "Corolla")
        self.assertEqual(car.device_name, "Garage Pi")


class DeviceSyncReloadCallbackTest(unittest.TestCase):
    def test_on_config_changed_calls_registered_callback(self):
        callback = Mock()
        original = app_device_sync._RELOAD_CALLBACK
        try:
            app_device_sync.register_reload_callback(callback)

            app_device_sync._on_config_changed()

            callback.assert_called_once_with()
        finally:
            app_device_sync._RELOAD_CALLBACK = original

    @patch("modules.app_remote_config.server_credentials")
    def test_sync_credentials_fall_back_to_upload_api_key(self, server_credentials):
        server_credentials.return_value = {
            "server_url": "https://example.test",
            "device_name": "yaris-2013",
            "api_key": "upload-key",
        }
        server_url, device_name, device_key = app_device_sync._server_credentials()

        self.assertEqual(server_url, "https://example.test")
        self.assertEqual(device_name, "yaris-2013")
        self.assertEqual(device_key, "upload-key")


if __name__ == "__main__":
    unittest.main()