core/homeassistant/components/tahoma/binary_sensor.py

101 lines
3.1 KiB
Python

"""Support for Tahoma binary sensors."""
import logging
from datetime import timedelta
from homeassistant.components.binary_sensor import (
BinarySensorDevice)
from homeassistant.components.tahoma import (
DOMAIN as TAHOMA_DOMAIN, TahomaDevice)
from homeassistant.const import (STATE_OFF, STATE_ON, ATTR_BATTERY_LEVEL)
DEPENDENCIES = ['tahoma']
_LOGGER = logging.getLogger(__name__)
SCAN_INTERVAL = timedelta(seconds=120)
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up Tahoma controller devices."""
_LOGGER.debug("Setup Tahoma Binary sensor platform")
controller = hass.data[TAHOMA_DOMAIN]['controller']
devices = []
for device in hass.data[TAHOMA_DOMAIN]['devices']['smoke']:
devices.append(TahomaBinarySensor(device, controller))
add_entities(devices, True)
class TahomaBinarySensor(TahomaDevice, BinarySensorDevice):
"""Representation of a Tahoma Binary Sensor."""
def __init__(self, tahoma_device, controller):
"""Initialize the sensor."""
super().__init__(tahoma_device, controller)
self._state = None
self._icon = None
self._battery = None
self._available = False
@property
def is_on(self):
"""Return the state of the sensor."""
return bool(self._state == STATE_ON)
@property
def device_class(self):
"""Return the class of the device."""
if self.tahoma_device.type == 'rtds:RTDSSmokeSensor':
return 'smoke'
return None
@property
def icon(self):
"""Icon for device by its type."""
return self._icon
@property
def device_state_attributes(self):
"""Return the device state attributes."""
attr = {}
super_attr = super().device_state_attributes
if super_attr is not None:
attr.update(super_attr)
if self._battery is not None:
attr[ATTR_BATTERY_LEVEL] = self._battery
return attr
@property
def available(self):
"""Return True if entity is available."""
return self._available
def update(self):
"""Update the state."""
self.controller.get_states([self.tahoma_device])
if self.tahoma_device.type == 'rtds:RTDSSmokeSensor':
if self.tahoma_device.active_states['core:SmokeState']\
== 'notDetected':
self._state = STATE_OFF
else:
self._state = STATE_ON
if 'core:SensorDefectState' in self.tahoma_device.active_states:
# 'lowBattery' for low battery warning. 'dead' for not available.
self._battery = self.tahoma_device.active_states[
'core:SensorDefectState']
self._available = bool(self._battery != 'dead')
else:
self._battery = None
self._available = True
if self._state == STATE_ON:
self._icon = "mdi:fire"
elif self._battery == 'lowBattery':
self._icon = "mdi:battery-alert"
else:
self._icon = None
_LOGGER.debug("Update %s, state: %s", self._name, self._state)