coordinator.py

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"""The ukraine_alarm component."""
 
from __future__ import annotations
 
from datetime import timedelta
import logging
from typing import Any
 
import aiohttp
from aiohttp import ClientSession
from uasiren.client import Client
 
from homeassistant.core import HomeAssistant
from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
 
from .const import ALERT_TYPES, DOMAIN
 
_LOGGER = logging.getLogger(__name__)
 
UPDATE_INTERVAL = timedelta(seconds=10)
 
 
class UkraineAlarmDataUpdateCoordinator(DataUpdateCoordinator[dict[str, Any]]):
    """Class to manage fetching Ukraine Alarm API."""
 
    def __init__(
        self,
        hass: HomeAssistant,
        session: ClientSession,
        region_id: str,
    ) -> None:
        """Initialize."""
        self.region_idregion_id = region_id
        self.uasirenuasiren = Client(session)
 
        super().__init__(hass, _LOGGER, name=DOMAIN, update_interval=UPDATE_INTERVAL)
 
    async def _async_update_data(self) -> dict[str, Any]:
        """Update data via library."""
        try:
            res = await self.uasirenuasiren.get_alerts(self.region_idregion_id)
        except aiohttp.ClientError as error:
            raise UpdateFailed(f"Error fetching alerts from API: {error}") from error
 
        current = {alert_type: False for alert_type in ALERT_TYPES}
        for alert in res[0]["activeAlerts"]:
            current[alert["type"]] = True
 
        return current