from edge.config import load_config

def test_defaults_when_env_empty():
    cfg = load_config({})
    assert cfg.device_id == "pi-unknown"
    assert cfg.fall.prone_confirm_s == 3.0
    assert cfg.fall.no_motion_s == 10.0
    assert cfg.camera_id == "cam-01"
    assert cfg.cafe24_url == ""
    assert cfg.secret == ""
    assert cfg.ghost.reappear_s == 10.0
    assert cfg.zone.debounce_s == 0.75
    assert cfg.engine.cooldown_s == 30.0

def test_env_overrides():
    env = {
        "DEVICE_ID": "pi-w1", "CAMERA_ID": "cam-9",
        "CAFE24_URL": "https://x/api/events", "DEVICE_SECRET": "s",
        "FALL_PRONE_S": "2.0", "FALL_NO_MOTION_S": "8",
        "IMMOBILE_S": "90", "COOLDOWN_S": "45",
        "GHOST_REAPPEAR_S": "7", "ZONE_DEBOUNCE_S": "1.5",
    }
    cfg = load_config(env)
    assert cfg.device_id == "pi-w1"
    assert cfg.camera_id == "cam-9"
    assert cfg.fall.prone_confirm_s == 2.0
    assert cfg.fall.no_motion_s == 8.0
    assert cfg.immobility.immobile_s == 90.0
    assert cfg.engine.cooldown_s == 45.0
    assert cfg.engine.camera_id == "cam-9"
    assert cfg.ghost.reappear_s == 7.0
    assert cfg.zone.debounce_s == 1.5