import json

from logitech_battery_widget.config import AppConfig, ConfigStore


def test_config_round_trip(tmp_path):
    path = tmp_path / "config.json"
    store = ConfigStore(path)
    expected = AppConfig(theme="dark", always_on_top=True, window_x=12, window_y=34)

    store.save(expected)

    assert store.load() == expected
    assert json.loads(path.read_text(encoding="utf-8"))["theme"] == "dark"


def test_invalid_config_uses_safe_values(tmp_path):
    path = tmp_path / "config.json"
    path.write_text('{"theme": "purple", "refresh_interval_seconds": 1}', encoding="utf-8")

    loaded = ConfigStore(path).load()

    assert loaded.theme == "system"
    assert loaded.refresh_interval_seconds == 15


def test_broken_json_returns_defaults(tmp_path):
    path = tmp_path / "config.json"
    path.write_text("not json", encoding="utf-8")
    assert ConfigStore(path).load() == AppConfig()