feat: expose aggregate ceiling light power state (#609)

switchbot/devices/light_strip.py

@@ -407,6 +407,16 @@ class SwitchbotRgbicwwCeilingLight(SwitchbotEncryptedDevice, SwitchbotLightStrip
         )
         return _RGBICWW_CEILING_LIGHT_COLOR_MODE_MAP.get(device_mode, ColorMode.OFF)
 
+    @property
+    def is_any_light_on(self) -> bool | None:
+        """Return whether either sub-light is on, or None if undetermined."""
+        states = (self.on, self.is_main_on)
+        if True in states:
+            return True
+        if None in states:
+            return None
+        return False
+
     @property
     def is_main_on(self) -> bool | None:
         """Return whether the main (warm-white) sub-light is on."""

tests/test_strip_light.py

@@ -605,3 +605,43 @@ async def test_rgbicww_ceiling_light_get_basic_info_with_main_state() -> None:
     # Power state must not be sourced from GATT (advertisement is authoritative).
     assert "isOn" not in info
     assert "main_isOn" not in info
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    ("color_on", "main_on", "expected"),
+    [
+        (False, False, False),
+        (False, True, True),
+        (True, False, True),
+        (True, True, True),
+        (None, None, None),
+        (None, False, None),
+        (False, None, None),
+        (None, True, True),
+        (True, None, True),
+    ],
+)
+async def test_ceiling_any_light_on(
+    color_on: bool | None, main_on: bool | None, expected: bool | None
+) -> None:
+    device = create_device_for_command_testing(
+        RGBICWW_CEILING_LIGHT_INFO,
+        light_strip.SwitchbotRgbicwwCeilingLight,
+        init_data={"isOn": color_on, "main_isOn": main_on},
+    )
+    assert device.is_any_light_on is expected
+    assert device.on is color_on
+    assert device.is_main_on is main_on
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    ("method", "command"), [("turn_on", "570F490101"), ("turn_off", "570F490102")]
+)
+async def test_ceiling_master_power_command(method: str, command: str) -> None:
+    device = create_device_for_command_testing(
+        RGBICWW_CEILING_LIGHT_INFO, light_strip.SwitchbotRgbicwwCeilingLight
+    )
+    await getattr(device, method)()
+    device._send_command.assert_awaited_once_with(command)