ha-kumisensors/config_flow.py

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2021-05-21 11:38:16 +00:00
"""Config flow for Kumi Sensors integration."""
from __future__ import annotations
import logging
from typing import Any
import voluptuous as vol
from homeassistant import config_entries
from homeassistant.core import HomeAssistant
from homeassistant.data_entry_flow import FlowResult
from homeassistant.exceptions import HomeAssistantError
from homeassistant.const import CONF_NAME, CONF_HOST
from .const import DOMAIN
from .kumisensors import KumiSensors
from urllib.request import urlopen
_LOGGER = logging.getLogger(__name__)
STEP_USER_DATA_SCHEMA = vol.Schema({"host": str})
async def validate_input(hass: HomeAssistant, data: dict[str, Any]) -> dict[str, Any]:
"""Validate the user input allows us to connect.
Data has the keys from STEP_USER_DATA_SCHEMA with values provided by the user.
"""
hub = KumiSensors(data[CONF_HOST], hass)
if not await hub.connect():
raise CannotConnect
# Return info that you want to store in the config entry.
return {CONF_NAME: await hub.get_identifier()}
class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
"""Handle a config flow for Kumi Sensors."""
VERSION = 1
async def async_step_user(
self, user_input: dict[str, Any] | None = None
) -> FlowResult:
"""Handle the initial step."""
if user_input is None:
return self.async_show_form(
step_id="user", data_schema=STEP_USER_DATA_SCHEMA
)
errors = {}
try:
info = await validate_input(self.hass, user_input)
user_input[CONF_NAME] = info[CONF_NAME]
except CannotConnect:
errors["base"] = "cannot_connect"
except Exception: # pylint: disable=broad-except
_LOGGER.exception("Unexpected exception")
errors["base"] = "unknown"
else:
return self.async_create_entry(title=info[CONF_NAME], data=user_input)
return self.async_show_form(
step_id="user", data_schema=STEP_USER_DATA_SCHEMA, errors=errors
)
class CannotConnect(HomeAssistantError):
"""Error to indicate we cannot connect."""