core/homeassistant/components/airnow/__init__.py

98 lines
3.0 KiB
Python

"""The AirNow integration."""
import datetime
import logging
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
CONF_API_KEY,
CONF_LATITUDE,
CONF_LONGITUDE,
CONF_RADIUS,
Platform,
)
from homeassistant.core import HomeAssistant
from homeassistant.helpers import device_registry as dr, entity_registry as er
from homeassistant.helpers.aiohttp_client import async_get_clientsession
from .coordinator import AirNowDataUpdateCoordinator
_LOGGER = logging.getLogger(__name__)
PLATFORMS = [Platform.SENSOR]
type AirNowConfigEntry = ConfigEntry[AirNowDataUpdateCoordinator]
async def async_setup_entry(hass: HomeAssistant, entry: AirNowConfigEntry) -> bool:
"""Set up AirNow from a config entry."""
api_key = entry.data[CONF_API_KEY]
latitude = entry.data[CONF_LATITUDE]
longitude = entry.data[CONF_LONGITUDE]
# Station Radius is a user-configurable option
distance = entry.options[CONF_RADIUS]
# Reports are published hourly but update twice per hour
update_interval = datetime.timedelta(minutes=30)
# Setup the Coordinator
session = async_get_clientsession(hass)
coordinator = AirNowDataUpdateCoordinator(
hass, session, api_key, latitude, longitude, distance, update_interval
)
# Sync with Coordinator
await coordinator.async_config_entry_first_refresh()
# Store Entity and Initialize Platforms
entry.runtime_data = coordinator
# Listen for option changes
entry.async_on_unload(entry.add_update_listener(update_listener))
await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
# Clean up unused device entries with no entities
device_registry = dr.async_get(hass)
entity_registry = er.async_get(hass)
device_entries = dr.async_entries_for_config_entry(
device_registry, config_entry_id=entry.entry_id
)
for dev in device_entries:
dev_entities = er.async_entries_for_device(
entity_registry, dev.id, include_disabled_entities=True
)
if not dev_entities:
device_registry.async_remove_device(dev.id)
return True
async def async_migrate_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
"""Migrate old entry."""
_LOGGER.debug("Migrating from version %s", entry.version)
if entry.version == 1:
new_options = {CONF_RADIUS: entry.data[CONF_RADIUS]}
new_data = entry.data.copy()
del new_data[CONF_RADIUS]
hass.config_entries.async_update_entry(
entry, data=new_data, options=new_options, version=2
)
_LOGGER.info("Migration to version %s successful", entry.version)
return True
async def async_unload_entry(hass: HomeAssistant, entry: AirNowConfigEntry) -> bool:
"""Unload a config entry."""
return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
async def update_listener(hass: HomeAssistant, entry: ConfigEntry) -> None:
"""Handle options update."""
await hass.config_entries.async_reload(entry.entry_id)