core/homeassistant/components/binary_sensor/spc.py

103 lines
2.8 KiB
Python

"""
Support for Vanderbilt (formerly Siemens) SPC alarm systems.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/binary_sensor.spc/
"""
import asyncio
import logging
from homeassistant.components.binary_sensor import BinarySensorDevice
from homeassistant.components.spc import ATTR_DISCOVER_DEVICES, DATA_REGISTRY
from homeassistant.const import STATE_OFF, STATE_ON, STATE_UNAVAILABLE
_LOGGER = logging.getLogger(__name__)
SPC_TYPE_TO_DEVICE_CLASS = {
'0': 'motion',
'1': 'opening',
'3': 'smoke',
}
SPC_INPUT_TO_SENSOR_STATE = {
'0': STATE_OFF,
'1': STATE_ON,
}
def _get_device_class(spc_type):
"""Get the device class."""
return SPC_TYPE_TO_DEVICE_CLASS.get(spc_type, None)
def _get_sensor_state(spc_input):
"""Get the sensor state."""
return SPC_INPUT_TO_SENSOR_STATE.get(spc_input, STATE_UNAVAILABLE)
def _create_sensor(hass, zone):
"""Create a SPC sensor."""
return SpcBinarySensor(
zone_id=zone['id'], name=zone['zone_name'],
state=_get_sensor_state(zone['input']),
device_class=_get_device_class(zone['type']),
spc_registry=hass.data[DATA_REGISTRY])
@asyncio.coroutine
def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
"""Set up the SPC binary sensor."""
if (discovery_info is None or
discovery_info[ATTR_DISCOVER_DEVICES] is None):
return
async_add_devices(
_create_sensor(hass, zone)
for zone in discovery_info[ATTR_DISCOVER_DEVICES]
if _get_device_class(zone['type']))
class SpcBinarySensor(BinarySensorDevice):
"""Representation of a sensor based on a SPC zone."""
def __init__(self, zone_id, name, state, device_class, spc_registry):
"""Initialize the sensor device."""
self._zone_id = zone_id
self._name = name
self._state = state
self._device_class = device_class
spc_registry.register_sensor_device(zone_id, self)
@asyncio.coroutine
def async_update_from_spc(self, state, extra):
"""Update the state of the device."""
self._state = state
yield from self.async_update_ha_state()
@property
def name(self):
"""Return the name of the device."""
return self._name
@property
def is_on(self):
"""Whether the device is switched on."""
return self._state == STATE_ON
@property
def hidden(self) -> bool:
"""Whether the device is hidden by default."""
# These type of sensors are probably mainly used for automations
return True
@property
def should_poll(self):
"""No polling needed."""
return False
@property
def device_class(self):
"""Return the device class."""
return self._device_class