core/homeassistant/components/rachio/binary_sensor.py

135 lines
4.4 KiB
Python

"""Integration with the Rachio Iro sprinkler system controller."""
from abc import abstractmethod
import logging
from homeassistant.components.binary_sensor import (
DEVICE_CLASS_CONNECTIVITY,
BinarySensorDevice,
)
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from .const import (
DOMAIN as DOMAIN_RACHIO,
KEY_DEVICE_ID,
KEY_STATUS,
KEY_SUBTYPE,
SIGNAL_RACHIO_CONTROLLER_UPDATE,
STATUS_OFFLINE,
STATUS_ONLINE,
)
from .entity import RachioDevice
from .webhooks import SUBTYPE_OFFLINE, SUBTYPE_ONLINE
_LOGGER = logging.getLogger(__name__)
async def async_setup_entry(hass, config_entry, async_add_entities):
"""Set up the Rachio binary sensors."""
entities = await hass.async_add_executor_job(_create_entities, hass, config_entry)
async_add_entities(entities)
_LOGGER.info("%d Rachio binary sensor(s) added", len(entities))
def _create_entities(hass, config_entry):
entities = []
for controller in hass.data[DOMAIN_RACHIO][config_entry.entry_id].controllers:
entities.append(RachioControllerOnlineBinarySensor(controller))
return entities
class RachioControllerBinarySensor(RachioDevice, BinarySensorDevice):
"""Represent a binary sensor that reflects a Rachio state."""
def __init__(self, controller, poll=True):
"""Set up a new Rachio controller binary sensor."""
super().__init__(controller)
self._undo_dispatcher = None
if poll:
self._state = self._poll_update()
else:
self._state = None
@property
def is_on(self) -> bool:
"""Return whether the sensor has a 'true' value."""
return self._state
def _handle_any_update(self, *args, **kwargs) -> None:
"""Determine whether an update event applies to this device."""
if args[0][KEY_DEVICE_ID] != self._controller.controller_id:
# For another device
return
# For this device
self._handle_update(args, kwargs)
@abstractmethod
def _poll_update(self, data=None) -> bool:
"""Request the state from the API."""
@abstractmethod
def _handle_update(self, *args, **kwargs) -> None:
"""Handle an update to the state of this sensor."""
async def async_added_to_hass(self):
"""Subscribe to updates."""
self._undo_dispatcher = async_dispatcher_connect(
self.hass, SIGNAL_RACHIO_CONTROLLER_UPDATE, self._handle_any_update
)
async def async_will_remove_from_hass(self):
"""Unsubscribe from updates."""
if self._undo_dispatcher:
self._undo_dispatcher()
class RachioControllerOnlineBinarySensor(RachioControllerBinarySensor):
"""Represent a binary sensor that reflects if the controller is online."""
def __init__(self, controller):
"""Set up a new Rachio controller online binary sensor."""
super().__init__(controller, poll=False)
self._state = self._poll_update(controller.init_data)
@property
def name(self) -> str:
"""Return the name of this sensor including the controller name."""
return f"{self._controller.name} online"
@property
def unique_id(self) -> str:
"""Return a unique id for this entity."""
return f"{self._controller.controller_id}-online"
@property
def device_class(self) -> str:
"""Return the class of this device, from component DEVICE_CLASSES."""
return DEVICE_CLASS_CONNECTIVITY
@property
def icon(self) -> str:
"""Return the name of an icon for this sensor."""
return "mdi:wifi-strength-4" if self.is_on else "mdi:wifi-strength-off-outline"
def _poll_update(self, data=None) -> bool:
"""Request the state from the API."""
if data is None:
data = self._controller.rachio.device.get(self._controller.controller_id)[1]
if data[KEY_STATUS] == STATUS_ONLINE:
return True
if data[KEY_STATUS] == STATUS_OFFLINE:
return False
_LOGGER.warning(
'"%s" reported in unknown state "%s"', self.name, data[KEY_STATUS]
)
def _handle_update(self, *args, **kwargs) -> None:
"""Handle an update to the state of this sensor."""
if args[0][0][KEY_SUBTYPE] == SUBTYPE_ONLINE:
self._state = True
elif args[0][0][KEY_SUBTYPE] == SUBTYPE_OFFLINE:
self._state = False
self.schedule_update_ha_state()