core/homeassistant/components/xiaomi_aqara/light.py

109 lines
3.5 KiB
Python

"""Support for Xiaomi Gateway Light."""
import logging
import struct
import binascii
from homeassistant.components.xiaomi_aqara import (PY_XIAOMI_GATEWAY,
XiaomiDevice)
from homeassistant.components.light import (ATTR_BRIGHTNESS, ATTR_HS_COLOR,
SUPPORT_BRIGHTNESS,
SUPPORT_COLOR, Light)
import homeassistant.util.color as color_util
_LOGGER = logging.getLogger(__name__)
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Perform the setup for Xiaomi devices."""
devices = []
for (_, gateway) in hass.data[PY_XIAOMI_GATEWAY].gateways.items():
for device in gateway.devices['light']:
model = device['model']
if model in ['gateway', 'gateway.v3']:
devices.append(XiaomiGatewayLight(device, 'Gateway Light',
gateway))
add_entities(devices)
class XiaomiGatewayLight(XiaomiDevice, Light):
"""Representation of a XiaomiGatewayLight."""
def __init__(self, device, name, xiaomi_hub):
"""Initialize the XiaomiGatewayLight."""
self._data_key = 'rgb'
self._hs = (0, 0)
self._brightness = 100
XiaomiDevice.__init__(self, device, name, xiaomi_hub)
@property
def is_on(self):
"""Return true if it is on."""
return self._state
def parse_data(self, data, raw_data):
"""Parse data sent by gateway."""
value = data.get(self._data_key)
if value is None:
return False
if value == 0:
if self._state:
self._state = False
return True
rgbhexstr = "%x" % value
if len(rgbhexstr) > 8:
_LOGGER.error("Light RGB data error."
" Can't be more than 8 characters. Received: %s",
rgbhexstr)
return False
rgbhexstr = rgbhexstr.zfill(8)
rgbhex = bytes.fromhex(rgbhexstr)
rgba = struct.unpack('BBBB', rgbhex)
brightness = rgba[0]
rgb = rgba[1:]
self._brightness = brightness
self._hs = color_util.color_RGB_to_hs(*rgb)
self._state = True
return True
@property
def brightness(self):
"""Return the brightness of this light between 0..255."""
return int(255 * self._brightness / 100)
@property
def hs_color(self):
"""Return the hs color value."""
return self._hs
@property
def supported_features(self):
"""Return the supported features."""
return SUPPORT_BRIGHTNESS | SUPPORT_COLOR
def turn_on(self, **kwargs):
"""Turn the light on."""
if ATTR_HS_COLOR in kwargs:
self._hs = kwargs[ATTR_HS_COLOR]
if ATTR_BRIGHTNESS in kwargs:
self._brightness = int(100 * kwargs[ATTR_BRIGHTNESS] / 255)
rgb = color_util.color_hs_to_RGB(*self._hs)
rgba = (self._brightness,) + rgb
rgbhex = binascii.hexlify(struct.pack('BBBB', *rgba)).decode("ASCII")
rgbhex = int(rgbhex, 16)
if self._write_to_hub(self._sid, **{self._data_key: rgbhex}):
self._state = True
self.schedule_update_ha_state()
def turn_off(self, **kwargs):
"""Turn the light off."""
if self._write_to_hub(self._sid, **{self._data_key: 0}):
self._state = False
self.schedule_update_ha_state()