core/homeassistant/components/binary_sensor/envisalink.py

72 lines
2.7 KiB
Python

"""
Support for Envisalink zone states- represented as binary sensors.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/binary_sensor.envisalink/
"""
import logging
from homeassistant.components.binary_sensor import BinarySensorDevice
from homeassistant.components.envisalink import (EVL_CONTROLLER,
ZONE_SCHEMA,
CONF_ZONENAME,
CONF_ZONETYPE,
EnvisalinkDevice,
SIGNAL_ZONE_UPDATE)
from homeassistant.const import ATTR_LAST_TRIP_TIME
DEPENDENCIES = ['envisalink']
_LOGGER = logging.getLogger(__name__)
def setup_platform(hass, config, add_devices_callback, discovery_info=None):
"""Setup Envisalink binary sensor devices."""
_configured_zones = discovery_info['zones']
for zone_num in _configured_zones:
_device_config_data = ZONE_SCHEMA(_configured_zones[zone_num])
_device = EnvisalinkBinarySensor(
zone_num,
_device_config_data[CONF_ZONENAME],
_device_config_data[CONF_ZONETYPE],
EVL_CONTROLLER.alarm_state['zone'][zone_num],
EVL_CONTROLLER)
add_devices_callback([_device])
class EnvisalinkBinarySensor(EnvisalinkDevice, BinarySensorDevice):
"""Representation of an Envisalink binary sensor."""
# pylint: disable=too-many-arguments
def __init__(self, zone_number, zone_name, zone_type, info, controller):
"""Initialize the binary_sensor."""
from pydispatch import dispatcher
self._zone_type = zone_type
self._zone_number = zone_number
_LOGGER.debug('Setting up zone: ' + zone_name)
EnvisalinkDevice.__init__(self, zone_name, info, controller)
dispatcher.connect(self._update_callback,
signal=SIGNAL_ZONE_UPDATE,
sender=dispatcher.Any)
@property
def device_state_attributes(self):
"""Return the state attributes."""
attr = {}
attr[ATTR_LAST_TRIP_TIME] = self._info['last_fault']
return attr
@property
def is_on(self):
"""Return true if sensor is on."""
return self._info['status']['open']
@property
def sensor_class(self):
"""Return the class of this sensor, from SENSOR_CLASSES."""
return self._zone_type
def _update_callback(self, zone):
"""Update the zone's state, if needed."""
if zone is None or int(zone) == self._zone_number:
self.update_ha_state()