"""Support for KNX/IP lights.""" from xknx.devices import Light as XknxLight from homeassistant.components.light import ( ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, ATTR_WHITE_VALUE, SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_COLOR_TEMP, SUPPORT_WHITE_VALUE, LightEntity, ) import homeassistant.util.color as color_util from .const import DOMAIN from .knx_entity import KnxEntity DEFAULT_COLOR = (0.0, 0.0) DEFAULT_BRIGHTNESS = 255 DEFAULT_WHITE_VALUE = 255 async def async_setup_platform(hass, config, async_add_entities, discovery_info=None): """Set up lights for KNX platform.""" entities = [] for device in hass.data[DOMAIN].xknx.devices: if isinstance(device, XknxLight): entities.append(KNXLight(device)) async_add_entities(entities) class KNXLight(KnxEntity, LightEntity): """Representation of a KNX light.""" def __init__(self, device: XknxLight): """Initialize of KNX light.""" super().__init__(device) self._min_kelvin = device.min_kelvin self._max_kelvin = device.max_kelvin self._min_mireds = color_util.color_temperature_kelvin_to_mired( self._max_kelvin ) self._max_mireds = color_util.color_temperature_kelvin_to_mired( self._min_kelvin ) @property def brightness(self): """Return the brightness of this light between 0..255.""" if self._device.supports_brightness: return self._device.current_brightness hsv_color = self._hsv_color if self._device.supports_color and hsv_color: return round(hsv_color[-1] / 100 * 255) return None @property def hs_color(self): """Return the HS color value.""" rgb = None if self._device.supports_rgbw or self._device.supports_color: rgb, _ = self._device.current_color return color_util.color_RGB_to_hs(*rgb) if rgb else None @property def _hsv_color(self): """Return the HSV color value.""" rgb = None if self._device.supports_rgbw or self._device.supports_color: rgb, _ = self._device.current_color return color_util.color_RGB_to_hsv(*rgb) if rgb else None @property def white_value(self): """Return the white value.""" white = None if self._device.supports_rgbw: _, white = self._device.current_color return white @property def color_temp(self): """Return the color temperature in mireds.""" if self._device.supports_color_temperature: kelvin = self._device.current_color_temperature # Avoid division by zero if actuator reported 0 Kelvin (e.g., uninitialized DALI-Gateway) if kelvin is not None and kelvin > 0: return color_util.color_temperature_kelvin_to_mired(kelvin) if self._device.supports_tunable_white: relative_ct = self._device.current_tunable_white if relative_ct is not None: # as KNX devices typically use Kelvin we use it as base for # calculating ct from percent return color_util.color_temperature_kelvin_to_mired( self._min_kelvin + ((relative_ct / 255) * (self._max_kelvin - self._min_kelvin)) ) return None @property def min_mireds(self): """Return the coldest color temp this light supports in mireds.""" return self._min_mireds @property def max_mireds(self): """Return the warmest color temp this light supports in mireds.""" return self._max_mireds @property def effect_list(self): """Return the list of supported effects.""" return None @property def effect(self): """Return the current effect.""" return None @property def is_on(self): """Return true if light is on.""" return self._device.state @property def supported_features(self): """Flag supported features.""" flags = 0 if self._device.supports_brightness: flags |= SUPPORT_BRIGHTNESS if self._device.supports_color: flags |= SUPPORT_COLOR | SUPPORT_BRIGHTNESS if self._device.supports_rgbw: flags |= SUPPORT_COLOR | SUPPORT_WHITE_VALUE if ( self._device.supports_color_temperature or self._device.supports_tunable_white ): flags |= SUPPORT_COLOR_TEMP return flags async def async_turn_on(self, **kwargs): """Turn the light on.""" brightness = kwargs.get(ATTR_BRIGHTNESS, self.brightness) hs_color = kwargs.get(ATTR_HS_COLOR, self.hs_color) white_value = kwargs.get(ATTR_WHITE_VALUE, self.white_value) mireds = kwargs.get(ATTR_COLOR_TEMP, self.color_temp) update_brightness = ATTR_BRIGHTNESS in kwargs update_color = ATTR_HS_COLOR in kwargs update_white_value = ATTR_WHITE_VALUE in kwargs update_color_temp = ATTR_COLOR_TEMP in kwargs # avoid conflicting changes and weird effects if not ( self.is_on or update_brightness or update_color or update_white_value or update_color_temp ): await self._device.set_on() if self._device.supports_brightness and ( update_brightness and not update_color ): # if we don't need to update the color, try updating brightness # directly if supported; don't do it if color also has to be # changed, as RGB color implicitly sets the brightness as well await self._device.set_brightness(brightness) elif (self._device.supports_rgbw or self._device.supports_color) and ( update_brightness or update_color or update_white_value ): # change RGB color, white value (if supported), and brightness # if brightness or hs_color was not yet set use the default value # to calculate RGB from as a fallback if brightness is None: brightness = DEFAULT_BRIGHTNESS if hs_color is None: hs_color = DEFAULT_COLOR if white_value is None and self._device.supports_rgbw: white_value = DEFAULT_WHITE_VALUE rgb = color_util.color_hsv_to_RGB(*hs_color, brightness * 100 / 255) await self._device.set_color(rgb, white_value) if update_color_temp: kelvin = int(color_util.color_temperature_mired_to_kelvin(mireds)) kelvin = min(self._max_kelvin, max(self._min_kelvin, kelvin)) if self._device.supports_color_temperature: await self._device.set_color_temperature(kelvin) elif self._device.supports_tunable_white: relative_ct = int( 255 * (kelvin - self._min_kelvin) / (self._max_kelvin - self._min_kelvin) ) await self._device.set_tunable_white(relative_ct) async def async_turn_off(self, **kwargs): """Turn the light off.""" await self._device.set_off()