core/homeassistant/components/environment_canada/weather.py

238 lines
8.0 KiB
Python

"""Platform for retrieving meteorological data from Environment Canada."""
from __future__ import annotations
from typing import Any
from homeassistant.components.weather import (
ATTR_CONDITION_CLEAR_NIGHT,
ATTR_CONDITION_CLOUDY,
ATTR_CONDITION_FOG,
ATTR_CONDITION_HAIL,
ATTR_CONDITION_LIGHTNING_RAINY,
ATTR_CONDITION_PARTLYCLOUDY,
ATTR_CONDITION_POURING,
ATTR_CONDITION_RAINY,
ATTR_CONDITION_SNOWY,
ATTR_CONDITION_SNOWY_RAINY,
ATTR_CONDITION_SUNNY,
ATTR_CONDITION_WINDY,
ATTR_FORECAST_CONDITION,
ATTR_FORECAST_NATIVE_TEMP,
ATTR_FORECAST_NATIVE_TEMP_LOW,
ATTR_FORECAST_PRECIPITATION_PROBABILITY,
ATTR_FORECAST_TIME,
DOMAIN as WEATHER_DOMAIN,
Forecast,
SingleCoordinatorWeatherEntity,
WeatherEntityFeature,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
UnitOfLength,
UnitOfPressure,
UnitOfSpeed,
UnitOfTemperature,
)
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers import entity_registry as er
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from . import device_info
from .const import DOMAIN
# Icon codes from http://dd.weatheroffice.ec.gc.ca/citypage_weather/
# docs/current_conditions_icon_code_descriptions_e.csv
ICON_CONDITION_MAP = {
ATTR_CONDITION_SUNNY: [0, 1],
ATTR_CONDITION_CLEAR_NIGHT: [30, 31],
ATTR_CONDITION_PARTLYCLOUDY: [2, 3, 4, 5, 22, 32, 33, 34, 35],
ATTR_CONDITION_CLOUDY: [10],
ATTR_CONDITION_RAINY: [6, 9, 11, 12, 28, 36],
ATTR_CONDITION_LIGHTNING_RAINY: [19, 39, 46, 47],
ATTR_CONDITION_POURING: [13],
ATTR_CONDITION_SNOWY_RAINY: [7, 14, 15, 27, 37],
ATTR_CONDITION_SNOWY: [8, 16, 17, 18, 25, 26, 38, 40],
ATTR_CONDITION_WINDY: [43],
ATTR_CONDITION_FOG: [20, 21, 23, 24, 44],
ATTR_CONDITION_HAIL: [26, 27],
}
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Add a weather entity from a config_entry."""
coordinator = hass.data[DOMAIN][config_entry.entry_id]["weather_coordinator"]
entity_registry = er.async_get(hass)
# Remove hourly entity from legacy config entries
if hourly_entity_id := entity_registry.async_get_entity_id(
WEATHER_DOMAIN,
DOMAIN,
_calculate_unique_id(config_entry.unique_id, True),
):
entity_registry.async_remove(hourly_entity_id)
async_add_entities([ECWeather(coordinator)])
def _calculate_unique_id(config_entry_unique_id: str | None, hourly: bool) -> str:
"""Calculate unique ID."""
return f"{config_entry_unique_id}{'-hourly' if hourly else '-daily'}"
class ECWeather(SingleCoordinatorWeatherEntity):
"""Representation of a weather condition."""
_attr_has_entity_name = True
_attr_native_pressure_unit = UnitOfPressure.KPA
_attr_native_temperature_unit = UnitOfTemperature.CELSIUS
_attr_native_visibility_unit = UnitOfLength.KILOMETERS
_attr_native_wind_speed_unit = UnitOfSpeed.KILOMETERS_PER_HOUR
_attr_supported_features = (
WeatherEntityFeature.FORECAST_DAILY | WeatherEntityFeature.FORECAST_HOURLY
)
def __init__(self, coordinator):
"""Initialize Environment Canada weather."""
super().__init__(coordinator)
self.ec_data = coordinator.ec_data
self._attr_attribution = self.ec_data.metadata["attribution"]
self._attr_translation_key = "forecast"
self._attr_unique_id = _calculate_unique_id(
coordinator.config_entry.unique_id, False
)
self._attr_device_info = device_info(coordinator.config_entry)
@property
def native_temperature(self):
"""Return the temperature."""
if (
temperature := self.ec_data.conditions.get("temperature", {}).get("value")
) is not None:
return float(temperature)
if (
self.ec_data.hourly_forecasts
and (temperature := self.ec_data.hourly_forecasts[0].get("temperature"))
is not None
):
return float(temperature)
return None
@property
def humidity(self):
"""Return the humidity."""
if self.ec_data.conditions.get("humidity", {}).get("value"):
return float(self.ec_data.conditions["humidity"]["value"])
return None
@property
def native_wind_speed(self):
"""Return the wind speed."""
if self.ec_data.conditions.get("wind_speed", {}).get("value"):
return float(self.ec_data.conditions["wind_speed"]["value"])
return None
@property
def wind_bearing(self):
"""Return the wind bearing."""
if self.ec_data.conditions.get("wind_bearing", {}).get("value"):
return float(self.ec_data.conditions["wind_bearing"]["value"])
return None
@property
def native_pressure(self):
"""Return the pressure."""
if self.ec_data.conditions.get("pressure", {}).get("value"):
return float(self.ec_data.conditions["pressure"]["value"])
return None
@property
def native_visibility(self):
"""Return the visibility."""
if self.ec_data.conditions.get("visibility", {}).get("value"):
return float(self.ec_data.conditions["visibility"]["value"])
return None
@property
def condition(self):
"""Return the weather condition."""
icon_code = None
if self.ec_data.conditions.get("icon_code", {}).get("value"):
icon_code = self.ec_data.conditions["icon_code"]["value"]
elif self.ec_data.hourly_forecasts and self.ec_data.hourly_forecasts[0].get(
"icon_code"
):
icon_code = self.ec_data.hourly_forecasts[0]["icon_code"]
if icon_code:
return icon_code_to_condition(int(icon_code))
return ""
@callback
def _async_forecast_daily(self) -> list[Forecast] | None:
"""Return the daily forecast in native units."""
return get_forecast(self.ec_data, False)
@callback
def _async_forecast_hourly(self) -> list[Forecast] | None:
"""Return the hourly forecast in native units."""
return get_forecast(self.ec_data, True)
def get_forecast(ec_data, hourly) -> list[Forecast] | None:
"""Build the forecast array."""
forecast_array: list[Forecast] = []
if not hourly:
if not (half_days := ec_data.daily_forecasts):
return None
def get_day_forecast(
fcst: list[dict[str, Any]],
) -> Forecast:
high_temp = int(fcst[0]["temperature"]) if len(fcst) == 2 else None
return {
ATTR_FORECAST_TIME: fcst[0]["timestamp"].isoformat(),
ATTR_FORECAST_NATIVE_TEMP: high_temp,
ATTR_FORECAST_NATIVE_TEMP_LOW: int(fcst[-1]["temperature"]),
ATTR_FORECAST_PRECIPITATION_PROBABILITY: int(
fcst[0]["precip_probability"]
),
ATTR_FORECAST_CONDITION: icon_code_to_condition(
int(fcst[0]["icon_code"])
),
}
i = 2 if half_days[0]["temperature_class"] == "high" else 1
forecast_array.append(get_day_forecast(half_days[0:i]))
for i in range(i, len(half_days) - 1, 2):
forecast_array.append(get_day_forecast(half_days[i : i + 2])) # noqa: PERF401
else:
forecast_array.extend(
{
ATTR_FORECAST_TIME: hour["period"].isoformat(),
ATTR_FORECAST_NATIVE_TEMP: int(hour["temperature"]),
ATTR_FORECAST_CONDITION: icon_code_to_condition(int(hour["icon_code"])),
ATTR_FORECAST_PRECIPITATION_PROBABILITY: int(
hour["precip_probability"]
),
}
for hour in ec_data.hourly_forecasts
)
return forecast_array
def icon_code_to_condition(icon_code):
"""Return the condition corresponding to an icon code."""
for condition, codes in ICON_CONDITION_MAP.items():
if icon_code in codes:
return condition
return None