__init__.py

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"""The kmtronic integration."""
 
import asyncio
from datetime import timedelta
import logging
 
import aiohttp
from pykmtronic.auth import Auth
from pykmtronic.hub import KMTronicHubAPI
 
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME, Platform
from homeassistant.core import HomeAssistant
from homeassistant.helpers import aiohttp_client
from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
 
from .const import DATA_COORDINATOR, DATA_HUB, DOMAIN, MANUFACTURER, UPDATE_LISTENER
 
PLATFORMS = [Platform.SWITCH]
 
_LOGGER = logging.getLogger(__name__)
 
 
async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
    """Set up kmtronic from a config entry."""
    session = aiohttp_client.async_get_clientsession(hass)
    auth = Auth(
        session,
        f"http://{entry.data[CONF_HOST]}",
        entry.data[CONF_USERNAME],
        entry.data[CONF_PASSWORD],
    )
    hub = KMTronicHubAPI(auth)
 
    async def async_update_data():
        try:
            async with asyncio.timeout(10):
                await hub.async_update_relays()
        except aiohttp.client_exceptions.ClientResponseError as err:
            raise UpdateFailed(f"Wrong credentials: {err}") from err
        except aiohttp.client_exceptions.ClientConnectorError as err:
            raise UpdateFailed(f"Error communicating with API: {err}") from err
 
    coordinator = DataUpdateCoordinator(
        hass,
        _LOGGER,
        config_entry=entry,
        name=f"{MANUFACTURER} {hub.name}",
        update_method=async_update_data,
        update_interval=timedelta(seconds=30),
    )
    await coordinator.async_config_entry_first_refresh()
 
    hass.data.setdefault(DOMAIN, {})
    hass.data[DOMAIN][entry.entry_id] = {
        DATA_HUB: hub,
        DATA_COORDINATOR: coordinator,
    }
 
    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 
    update_listener = entry.add_update_listener(async_update_options)
    hass.data[DOMAIN][entry.entry_id][UPDATE_LISTENER] = update_listener
 
    return True
 
 
async def async_update_options(hass: HomeAssistant, config_entry: ConfigEntry) -> None:
    """Update options."""
    await hass.config_entries.async_reload(config_entry.entry_id)
 
 
async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
    """Unload a config entry."""
    unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
    if unload_ok:
        update_listener = hass.data[DOMAIN][entry.entry_id][UPDATE_LISTENER]
        update_listener()
        hass.data[DOMAIN].pop(entry.entry_id)
 
    return unload_ok