core/homeassistant/components/nws/sensor.py

254 lines
8.2 KiB
Python

"""Sensors for National Weather Service (NWS)."""
from __future__ import annotations
from dataclasses import dataclass
from types import MappingProxyType
from typing import Any
from pynws import SimpleNWS
from homeassistant.components.sensor import (
SensorDeviceClass,
SensorEntity,
SensorEntityDescription,
SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
CONF_LATITUDE,
CONF_LONGITUDE,
DEGREE,
PERCENTAGE,
UnitOfLength,
UnitOfPressure,
UnitOfSpeed,
UnitOfTemperature,
)
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity import DeviceInfo
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.update_coordinator import CoordinatorEntity
from homeassistant.util.dt import utcnow
from homeassistant.util.unit_conversion import (
DistanceConverter,
PressureConverter,
SpeedConverter,
)
from homeassistant.util.unit_system import US_CUSTOMARY_SYSTEM
from . import NwsDataUpdateCoordinator, base_unique_id, device_info
from .const import (
ATTRIBUTION,
CONF_STATION,
COORDINATOR_OBSERVATION,
DOMAIN,
NWS_DATA,
OBSERVATION_VALID_TIME,
)
PARALLEL_UPDATES = 0
@dataclass
class NWSSensorEntityDescription(SensorEntityDescription):
"""Class describing NWSSensor entities."""
unit_convert: str | None = None
SENSOR_TYPES: tuple[NWSSensorEntityDescription, ...] = (
NWSSensorEntityDescription(
key="dewpoint",
name="Dew Point",
device_class=SensorDeviceClass.TEMPERATURE,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfTemperature.CELSIUS,
unit_convert=UnitOfTemperature.CELSIUS,
),
NWSSensorEntityDescription(
key="temperature",
name="Temperature",
device_class=SensorDeviceClass.TEMPERATURE,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfTemperature.CELSIUS,
unit_convert=UnitOfTemperature.CELSIUS,
),
NWSSensorEntityDescription(
key="windChill",
name="Wind Chill",
device_class=SensorDeviceClass.TEMPERATURE,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfTemperature.CELSIUS,
unit_convert=UnitOfTemperature.CELSIUS,
),
NWSSensorEntityDescription(
key="heatIndex",
name="Heat Index",
device_class=SensorDeviceClass.TEMPERATURE,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfTemperature.CELSIUS,
unit_convert=UnitOfTemperature.CELSIUS,
),
NWSSensorEntityDescription(
key="relativeHumidity",
name="Relative Humidity",
device_class=SensorDeviceClass.HUMIDITY,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=PERCENTAGE,
unit_convert=PERCENTAGE,
),
NWSSensorEntityDescription(
key="windSpeed",
name="Wind Speed",
device_class=SensorDeviceClass.WIND_SPEED,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfSpeed.KILOMETERS_PER_HOUR,
unit_convert=UnitOfSpeed.MILES_PER_HOUR,
),
NWSSensorEntityDescription(
key="windGust",
name="Wind Gust",
device_class=SensorDeviceClass.WIND_SPEED,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfSpeed.KILOMETERS_PER_HOUR,
unit_convert=UnitOfSpeed.MILES_PER_HOUR,
),
# statistics currently doesn't handle circular statistics
NWSSensorEntityDescription(
key="windDirection",
name="Wind Direction",
icon="mdi:compass-rose",
native_unit_of_measurement=DEGREE,
unit_convert=DEGREE,
),
NWSSensorEntityDescription(
key="barometricPressure",
name="Barometric Pressure",
device_class=SensorDeviceClass.PRESSURE,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfPressure.PA,
unit_convert=UnitOfPressure.INHG,
),
NWSSensorEntityDescription(
key="seaLevelPressure",
name="Sea Level Pressure",
device_class=SensorDeviceClass.PRESSURE,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfPressure.PA,
unit_convert=UnitOfPressure.INHG,
),
NWSSensorEntityDescription(
key="visibility",
name="Visibility",
icon="mdi:eye",
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfLength.METERS,
unit_convert=UnitOfLength.MILES,
),
)
async def async_setup_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Set up the NWS weather platform."""
hass_data = hass.data[DOMAIN][entry.entry_id]
station = entry.data[CONF_STATION]
async_add_entities(
NWSSensor(
hass=hass,
entry_data=entry.data,
hass_data=hass_data,
description=description,
station=station,
)
for description in SENSOR_TYPES
)
class NWSSensor(CoordinatorEntity[NwsDataUpdateCoordinator], SensorEntity):
"""An NWS Sensor Entity."""
entity_description: NWSSensorEntityDescription
_attr_attribution = ATTRIBUTION
def __init__(
self,
hass: HomeAssistant,
entry_data: MappingProxyType[str, Any],
hass_data: dict[str, Any],
description: NWSSensorEntityDescription,
station: str,
) -> None:
"""Initialise the platform with a data instance."""
super().__init__(hass_data[COORDINATOR_OBSERVATION])
self._nws: SimpleNWS = hass_data[NWS_DATA]
self._latitude = entry_data[CONF_LATITUDE]
self._longitude = entry_data[CONF_LONGITUDE]
self.entity_description = description
self._attr_name = f"{station} {description.name}"
if hass.config.units is US_CUSTOMARY_SYSTEM:
self._attr_native_unit_of_measurement = description.unit_convert
@property
def native_value(self) -> float | None:
"""Return the state."""
value = self._nws.observation.get(self.entity_description.key)
if value is None:
return None
# Set alias to unit property -> prevent unnecessary hasattr calls
unit_of_measurement = self.native_unit_of_measurement
if unit_of_measurement == UnitOfSpeed.MILES_PER_HOUR:
return round(
SpeedConverter.convert(
value, UnitOfSpeed.KILOMETERS_PER_HOUR, UnitOfSpeed.MILES_PER_HOUR
)
)
if unit_of_measurement == UnitOfLength.MILES:
return round(
DistanceConverter.convert(
value, UnitOfLength.METERS, UnitOfLength.MILES
)
)
if unit_of_measurement == UnitOfPressure.INHG:
return round(
PressureConverter.convert(
value, UnitOfPressure.PA, UnitOfPressure.INHG
),
2,
)
if unit_of_measurement == UnitOfTemperature.CELSIUS:
return round(value, 1)
if unit_of_measurement == PERCENTAGE:
return round(value)
return value
@property
def unique_id(self) -> str:
"""Return a unique_id for this entity."""
return f"{base_unique_id(self._latitude, self._longitude)}_{self.entity_description.key}"
@property
def available(self) -> bool:
"""Return if state is available."""
if self.coordinator.last_update_success_time:
last_success_time = (
utcnow() - self.coordinator.last_update_success_time
< OBSERVATION_VALID_TIME
)
else:
last_success_time = False
return self.coordinator.last_update_success or last_success_time
@property
def entity_registry_enabled_default(self) -> bool:
"""Return if the entity should be enabled when first added to the entity registry."""
return False
@property
def device_info(self) -> DeviceInfo:
"""Return device info."""
return device_info(self._latitude, self._longitude)