76 lines
2.3 KiB
Python
76 lines
2.3 KiB
Python
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"""Config flow for WeatherFlow."""
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from __future__ import annotations
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import asyncio
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from asyncio import Future
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from asyncio.exceptions import CancelledError
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from typing import Any
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from pyweatherflowudp.client import EVENT_DEVICE_DISCOVERED, WeatherFlowListener
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from pyweatherflowudp.errors import AddressInUseError, EndpointError, ListenerError
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from homeassistant import config_entries
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from homeassistant.core import callback
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from homeassistant.data_entry_flow import FlowResult
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from .const import (
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DOMAIN,
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ERROR_MSG_ADDRESS_IN_USE,
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ERROR_MSG_CANNOT_CONNECT,
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ERROR_MSG_NO_DEVICE_FOUND,
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)
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async def _async_can_discover_devices() -> bool:
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"""Return if there are devices that can be discovered."""
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future_event: Future[None] = asyncio.get_running_loop().create_future()
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@callback
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def _async_found(_):
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"""Handle a discovered device - only need to do this once so."""
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if not future_event.done():
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future_event.set_result(None)
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async with WeatherFlowListener() as client, asyncio.timeout(10):
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try:
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client.on(EVENT_DEVICE_DISCOVERED, _async_found)
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await future_event
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except asyncio.TimeoutError:
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return False
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return True
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class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
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"""Handle a config flow for WeatherFlow."""
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VERSION = 1
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async def async_step_user(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Handle a flow initialized by the user."""
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# Only allow a single instance of integration since the listener
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# will pick up all devices on the network and we don't want to
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# create multiple entries.
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if self._async_current_entries():
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return self.async_abort(reason="single_instance_allowed")
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found = False
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errors = {}
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try:
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found = await _async_can_discover_devices()
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except AddressInUseError:
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errors["base"] = ERROR_MSG_ADDRESS_IN_USE
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except (ListenerError, EndpointError, CancelledError):
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errors["base"] = ERROR_MSG_CANNOT_CONNECT
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if not found and not errors:
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errors["base"] = ERROR_MSG_NO_DEVICE_FOUND
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if errors:
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return self.async_show_form(step_id="user", errors=errors)
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return self.async_create_entry(title="WeatherFlow", data={})
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