core/homeassistant/components/wiffi/binary_sensor.py

60 lines
1.9 KiB
Python

"""Binary sensor platform support for wiffi devices."""
from homeassistant.components.binary_sensor import BinarySensorEntity
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .const import CREATE_ENTITY_SIGNAL
from .entity import WiffiEntity
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up platform for a new integration.
Called by the HA framework after async_forward_entry_setups has been called
during initialization of a new integration (= wiffi).
"""
@callback
def _create_entity(device, metric):
"""Create platform specific entities."""
entities = []
if metric.is_bool:
entities.append(BoolEntity(device, metric, config_entry.options))
async_add_entities(entities)
async_dispatcher_connect(hass, CREATE_ENTITY_SIGNAL, _create_entity)
class BoolEntity(WiffiEntity, BinarySensorEntity):
"""Entity for wiffi metrics which have a boolean value."""
def __init__(self, device, metric, options):
"""Initialize the entity."""
super().__init__(device, metric, options)
self._attr_is_on = metric.value
self.reset_expiration_date()
@property
def available(self):
"""Return true if value is valid."""
return self._attr_is_on is not None
@callback
def _update_value_callback(self, device, metric):
"""Update the value of the entity.
Called if a new message has been received from the wiffi device.
"""
self.reset_expiration_date()
self._attr_is_on = metric.value
self.async_write_ha_state()