config_flow.py

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"""Config flow for izone."""
 
import asyncio
from contextlib import suppress
import logging
 
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers import config_entry_flow
from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
from .const import DISPATCH_CONTROLLER_DISCOVERED, IZONE, TIMEOUT_DISCOVERY
from .discovery import async_start_discovery_service, async_stop_discovery_service
 
_LOGGER = logging.getLogger(__name__)
 
 
async def _async_has_devices(hass: HomeAssistant) -> bool:
    controller_ready = asyncio.Event()
 
    @callback
    def dispatch_discovered(_):
        controller_ready.set()
 
    async_dispatcher_connect(hass, DISPATCH_CONTROLLER_DISCOVERED, dispatch_discovered)
 
    disco = await async_start_discovery_service(hass)
 
    with suppress(TimeoutError):
        async with asyncio.timeout(TIMEOUT_DISCOVERY):
            await controller_ready.wait()
 
    if not disco.pi_disco.controllers:
        await async_stop_discovery_service(hass)
        _LOGGER.debug("No controllers found")
        return False
 
    _LOGGER.debug("Controllers %s", disco.pi_disco.controllers)
    return True
 
 
config_entry_flow.register_discovery_flow(IZONE, "iZone Aircon", _async_has_devices)