coordinator.py

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"""Helpers to help coordinate updates."""
 
from pypalazzetti.client import PalazzettiClient
from pypalazzetti.exceptions import CommunicationError, ValidationError
 
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import CONF_HOST
from homeassistant.core import HomeAssistant
from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
 
from .const import DOMAIN, LOGGER, SCAN_INTERVAL
 
type PalazzettiConfigEntry = ConfigEntry[PalazzettiDataUpdateCoordinator]
 
 
class PalazzettiDataUpdateCoordinator(DataUpdateCoordinator[None]):
    """Class to manage fetching Palazzetti data from a Palazzetti hub."""
 
    config_entry: PalazzettiConfigEntry
    client: PalazzettiClient
 
    def __init__(
        self,
        hass: HomeAssistant,
    ) -> None:
        """Initialize global Palazzetti data updater."""
        super().__init__(
            hass,
            LOGGER,
            name=DOMAIN,
            update_interval=SCAN_INTERVAL,
        )
        self.clientclient = PalazzettiClient(self.config_entryconfig_entry.data[CONF_HOST])
 
    async def _async_setup(self) -> None:
        try:
            await self.clientclient.connect()
            await self.clientclient.update_state()
        except (CommunicationError, ValidationError) as err:
            raise UpdateFailed(f"Error communicating with the API: {err}") from err
 
    async def _async_update_data(self) -> None:
        """Fetch data from Palazzetti."""
        try:
            await self.clientclient.update_state()
        except (CommunicationError, ValidationError) as err:
            raise UpdateFailed(f"Error communicating with the API: {err}") from err