core/homeassistant/components/nest/sensor_sdm.py

114 lines
3.8 KiB
Python

"""Support for Google Nest SDM sensors."""
from __future__ import annotations
import logging
from google_nest_sdm.device import Device
from google_nest_sdm.device_traits import HumidityTrait, TemperatureTrait
from google_nest_sdm.exceptions import ApiException
from homeassistant.components.sensor import (
SensorDeviceClass,
SensorEntity,
SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import PERCENTAGE, TEMP_CELSIUS
from homeassistant.core import HomeAssistant
from homeassistant.exceptions import PlatformNotReady
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .const import DATA_SUBSCRIBER, DOMAIN
from .device_info import NestDeviceInfo
_LOGGER = logging.getLogger(__name__)
DEVICE_TYPE_MAP = {
"sdm.devices.types.CAMERA": "Camera",
"sdm.devices.types.DISPLAY": "Display",
"sdm.devices.types.DOORBELL": "Doorbell",
"sdm.devices.types.THERMOSTAT": "Thermostat",
}
async def async_setup_sdm_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Set up the sensors."""
subscriber = hass.data[DOMAIN][DATA_SUBSCRIBER]
try:
device_manager = await subscriber.async_get_device_manager()
except ApiException as err:
_LOGGER.warning("Failed to get devices: %s", err)
raise PlatformNotReady from err
entities: list[SensorEntity] = []
for device in device_manager.devices.values():
if TemperatureTrait.NAME in device.traits:
entities.append(TemperatureSensor(device))
if HumidityTrait.NAME in device.traits:
entities.append(HumiditySensor(device))
async_add_entities(entities)
class SensorBase(SensorEntity):
"""Representation of a dynamically updated Sensor."""
_attr_should_poll = False
_attr_state_class = SensorStateClass.MEASUREMENT
def __init__(self, device: Device) -> None:
"""Initialize the sensor."""
self._device = device
self._device_info = NestDeviceInfo(device)
self._attr_unique_id = f"{device.name}-{self.device_class}"
self._attr_device_info = self._device_info.device_info
async def async_added_to_hass(self) -> None:
"""Run when entity is added to register update signal handler."""
self.async_on_remove(
self._device.add_update_listener(self.async_write_ha_state)
)
class TemperatureSensor(SensorBase):
"""Representation of a Temperature Sensor."""
_attr_device_class = SensorDeviceClass.TEMPERATURE
_attr_native_unit_of_measurement = TEMP_CELSIUS
@property
def name(self) -> str:
"""Return the name of the sensor."""
return f"{self._device_info.device_name} Temperature"
@property
def native_value(self) -> float:
"""Return the state of the sensor."""
trait: TemperatureTrait = self._device.traits[TemperatureTrait.NAME]
# Round for display purposes because the API returns 5 decimal places.
# This can be removed if the SDM API issue is fixed, or a frontend
# display fix is added for all integrations.
return float(round(trait.ambient_temperature_celsius, 1))
class HumiditySensor(SensorBase):
"""Representation of a Humidity Sensor."""
_attr_device_class = SensorDeviceClass.HUMIDITY
_attr_native_unit_of_measurement = PERCENTAGE
@property
def name(self) -> str:
"""Return the name of the sensor."""
return f"{self._device_info.device_name} Humidity"
@property
def native_value(self) -> int:
"""Return the state of the sensor."""
trait: HumidityTrait = self._device.traits[HumidityTrait.NAME]
# Cast without loss of precision because the API always returns an integer.
return int(trait.ambient_humidity_percent)