core/homeassistant/components/nws/weather.py

350 lines
12 KiB
Python

"""Support for NWS weather service."""
from __future__ import annotations
from functools import partial
from types import MappingProxyType
from typing import TYPE_CHECKING, Any, Literal, Required, TypedDict, cast
import voluptuous as vol
from homeassistant.components.weather import (
ATTR_CONDITION_CLEAR_NIGHT,
ATTR_CONDITION_SUNNY,
ATTR_FORECAST_CONDITION,
ATTR_FORECAST_HUMIDITY,
ATTR_FORECAST_IS_DAYTIME,
ATTR_FORECAST_NATIVE_DEW_POINT,
ATTR_FORECAST_NATIVE_TEMP,
ATTR_FORECAST_NATIVE_WIND_SPEED,
ATTR_FORECAST_PRECIPITATION_PROBABILITY,
ATTR_FORECAST_TIME,
ATTR_FORECAST_WIND_BEARING,
DOMAIN as WEATHER_DOMAIN,
CoordinatorWeatherEntity,
Forecast,
WeatherEntityFeature,
)
from homeassistant.const import (
CONF_LATITUDE,
CONF_LONGITUDE,
UnitOfLength,
UnitOfPressure,
UnitOfSpeed,
UnitOfTemperature,
)
from homeassistant.core import (
HomeAssistant,
ServiceResponse,
SupportsResponse,
callback,
)
from homeassistant.helpers import entity_platform, entity_registry as er
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.update_coordinator import TimestampDataUpdateCoordinator
from homeassistant.util.json import JsonValueType
from homeassistant.util.unit_conversion import SpeedConverter, TemperatureConverter
from . import NWSConfigEntry, NWSData, base_unique_id, device_info
from .const import (
ATTR_FORECAST_DETAILED_DESCRIPTION,
ATTR_FORECAST_SHORT_DESCRIPTION,
ATTRIBUTION,
CONDITION_CLASSES,
DAYNIGHT,
DOMAIN,
FORECAST_VALID_TIME,
HOURLY,
)
PARALLEL_UPDATES = 0
def convert_condition(time: str, weather: tuple[tuple[str, int | None], ...]) -> str:
"""Convert NWS codes to HA condition.
Choose first condition in CONDITION_CLASSES that exists in weather code.
If no match is found, return first condition from NWS
"""
conditions: list[str] = [w[0] for w in weather]
# Choose condition with highest priority.
cond = next(
(
key
for key, value in CONDITION_CLASSES.items()
if any(condition in value for condition in conditions)
),
conditions[0],
)
if cond == "clear":
if time == "day":
return ATTR_CONDITION_SUNNY
if time == "night":
return ATTR_CONDITION_CLEAR_NIGHT
return cond
async def async_setup_entry(
hass: HomeAssistant, entry: NWSConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Set up the NWS weather platform."""
entity_registry = er.async_get(hass)
nws_data = entry.runtime_data
# Remove hourly entity from legacy config entries
if entity_id := entity_registry.async_get_entity_id(
WEATHER_DOMAIN,
DOMAIN,
_calculate_unique_id(entry.data, HOURLY),
):
entity_registry.async_remove(entity_id)
platform = entity_platform.async_get_current_platform()
platform.async_register_entity_service(
"get_forecasts_extra",
{vol.Required("type"): vol.In(("hourly", "twice_daily"))},
"async_get_forecasts_extra_service",
supports_response=SupportsResponse.ONLY,
)
async_add_entities([NWSWeather(entry.data, nws_data)], False)
class ExtraForecast(TypedDict, total=False):
"""Forecast extra fields from NWS."""
# common attributes
datetime: Required[str]
is_daytime: bool | None
# extra attributes
detailed_description: str | None
short_description: str | None
def _calculate_unique_id(entry_data: MappingProxyType[str, Any], mode: str) -> str:
"""Calculate unique ID."""
latitude = entry_data[CONF_LATITUDE]
longitude = entry_data[CONF_LONGITUDE]
return f"{base_unique_id(latitude, longitude)}_{mode}"
class NWSWeather(CoordinatorWeatherEntity[TimestampDataUpdateCoordinator[None]]):
"""Representation of a weather condition."""
_attr_attribution = ATTRIBUTION
_attr_should_poll = False
_attr_supported_features = (
WeatherEntityFeature.FORECAST_HOURLY | WeatherEntityFeature.FORECAST_TWICE_DAILY
)
_attr_native_temperature_unit = UnitOfTemperature.CELSIUS
_attr_native_pressure_unit = UnitOfPressure.PA
_attr_native_wind_speed_unit = UnitOfSpeed.KILOMETERS_PER_HOUR
_attr_native_visibility_unit = UnitOfLength.METERS
def __init__(
self,
entry_data: MappingProxyType[str, Any],
nws_data: NWSData,
) -> None:
"""Initialise the platform with a data instance and station name."""
super().__init__(
observation_coordinator=nws_data.coordinator_observation,
hourly_coordinator=nws_data.coordinator_forecast_hourly,
twice_daily_coordinator=nws_data.coordinator_forecast,
hourly_forecast_valid=FORECAST_VALID_TIME,
twice_daily_forecast_valid=FORECAST_VALID_TIME,
)
self.nws = nws_data.api
latitude = entry_data[CONF_LATITUDE]
longitude = entry_data[CONF_LONGITUDE]
self.station = self.nws.station
self._attr_unique_id = _calculate_unique_id(entry_data, DAYNIGHT)
self._attr_device_info = device_info(latitude, longitude)
self._attr_name = self.station
async def async_added_to_hass(self) -> None:
"""When entity is added to hass."""
await super().async_added_to_hass()
self.async_on_remove(partial(self._remove_forecast_listener, "daily"))
self.async_on_remove(partial(self._remove_forecast_listener, "hourly"))
self.async_on_remove(partial(self._remove_forecast_listener, "twice_daily"))
for forecast_type in ("twice_daily", "hourly"):
if (coordinator := self.forecast_coordinators[forecast_type]) is None:
continue
if TYPE_CHECKING:
forecast_type = cast(Literal["twice_daily", "hourly"], forecast_type)
self.unsub_forecast[forecast_type] = coordinator.async_add_listener(
partial(self._handle_forecast_update, forecast_type)
)
@property
def native_temperature(self) -> float | None:
"""Return the current temperature."""
if observation := self.nws.observation:
return observation.get("temperature")
return None
@property
def native_pressure(self) -> int | None:
"""Return the current pressure."""
if observation := self.nws.observation:
return observation.get("seaLevelPressure")
return None
@property
def humidity(self) -> float | None:
"""Return the name of the sensor."""
if observation := self.nws.observation:
return observation.get("relativeHumidity")
return None
@property
def native_wind_speed(self) -> float | None:
"""Return the current windspeed."""
if observation := self.nws.observation:
return observation.get("windSpeed")
return None
@property
def wind_bearing(self) -> int | None:
"""Return the current wind bearing (degrees)."""
if observation := self.nws.observation:
return observation.get("windDirection")
return None
@property
def condition(self) -> str | None:
"""Return current condition."""
weather = None
if observation := self.nws.observation:
weather = observation.get("iconWeather")
time = cast(str, observation.get("iconTime"))
if weather:
return convert_condition(time, weather)
return None
@property
def native_visibility(self) -> int | None:
"""Return visibility."""
if observation := self.nws.observation:
return observation.get("visibility")
return None
def _forecast(
self,
nws_forecast: list[dict[str, Any]],
mode: str,
) -> list[Forecast]:
"""Return forecast."""
if nws_forecast is None:
return []
forecast: list[Forecast] = []
for forecast_entry in nws_forecast:
data: Forecast = {
ATTR_FORECAST_TIME: cast(str, forecast_entry.get("startTime")),
}
if (temp := forecast_entry.get("temperature")) is not None:
data[ATTR_FORECAST_NATIVE_TEMP] = TemperatureConverter.convert(
temp, UnitOfTemperature.FAHRENHEIT, UnitOfTemperature.CELSIUS
)
else:
data[ATTR_FORECAST_NATIVE_TEMP] = None
data[ATTR_FORECAST_PRECIPITATION_PROBABILITY] = forecast_entry.get(
"probabilityOfPrecipitation"
)
if (dewp := forecast_entry.get("dewpoint")) is not None:
data[ATTR_FORECAST_NATIVE_DEW_POINT] = TemperatureConverter.convert(
dewp, UnitOfTemperature.FAHRENHEIT, UnitOfTemperature.CELSIUS
)
else:
data[ATTR_FORECAST_NATIVE_DEW_POINT] = None
data[ATTR_FORECAST_HUMIDITY] = forecast_entry.get("relativeHumidity")
if mode == DAYNIGHT:
data[ATTR_FORECAST_IS_DAYTIME] = forecast_entry.get("isDaytime")
time = forecast_entry.get("iconTime")
weather = forecast_entry.get("iconWeather")
data[ATTR_FORECAST_CONDITION] = (
convert_condition(time, weather) if time and weather else None
)
data[ATTR_FORECAST_WIND_BEARING] = forecast_entry.get("windBearing")
wind_speed = forecast_entry.get("windSpeedAvg")
if wind_speed is not None:
data[ATTR_FORECAST_NATIVE_WIND_SPEED] = SpeedConverter.convert(
wind_speed,
UnitOfSpeed.MILES_PER_HOUR,
UnitOfSpeed.KILOMETERS_PER_HOUR,
)
else:
data[ATTR_FORECAST_NATIVE_WIND_SPEED] = None
forecast.append(data)
return forecast
def _forecast_extra(
self,
nws_forecast: list[dict[str, Any]] | None,
mode: str,
) -> list[ExtraForecast]:
"""Return forecast."""
if nws_forecast is None:
return []
forecast: list[ExtraForecast] = []
for forecast_entry in nws_forecast:
data: ExtraForecast = {
ATTR_FORECAST_TIME: cast(str, forecast_entry.get("startTime")),
}
if mode == DAYNIGHT:
data[ATTR_FORECAST_IS_DAYTIME] = forecast_entry.get("isDaytime")
data[ATTR_FORECAST_DETAILED_DESCRIPTION] = forecast_entry.get(
"detailedForecast"
)
data[ATTR_FORECAST_SHORT_DESCRIPTION] = forecast_entry.get("shortForecast")
forecast.append(data)
return forecast
@callback
def _async_forecast_hourly(self) -> list[Forecast] | None:
"""Return the hourly forecast in native units."""
return self._forecast(self.nws.forecast_hourly, HOURLY)
@callback
def _async_forecast_twice_daily(self) -> list[Forecast] | None:
"""Return the twice daily forecast in native units."""
return self._forecast(self.nws.forecast, DAYNIGHT)
async def async_update(self) -> None:
"""Update the entity.
Only used by the generic entity update service.
"""
await self.coordinator.async_request_refresh()
for forecast_type in ("twice_daily", "hourly"):
if (coordinator := self.forecast_coordinators[forecast_type]) is not None:
await coordinator.async_request_refresh()
async def async_get_forecasts_extra_service(self, type) -> ServiceResponse:
"""Get extra weather forecast."""
if type == "hourly":
nws_forecast = self._forecast_extra(self.nws.forecast_hourly, HOURLY)
else:
nws_forecast = self._forecast_extra(self.nws.forecast, DAYNIGHT)
return {
"forecast": cast(JsonValueType, nws_forecast),
}