110 lines
3.4 KiB
Python
110 lines
3.4 KiB
Python
"""Config flow for AirNow integration."""
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import logging
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from pyairnow import WebServiceAPI
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from pyairnow.errors import AirNowError, InvalidKeyError
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import voluptuous as vol
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from homeassistant import config_entries, core, exceptions
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from homeassistant.const import CONF_API_KEY, CONF_LATITUDE, CONF_LONGITUDE, CONF_RADIUS
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from homeassistant.helpers.aiohttp_client import async_get_clientsession
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import homeassistant.helpers.config_validation as cv
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from .const import DOMAIN
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_LOGGER = logging.getLogger(__name__)
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async def validate_input(hass: core.HomeAssistant, data):
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"""
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Validate the user input allows us to connect.
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Data has the keys from DATA_SCHEMA with values provided by the user.
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"""
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session = async_get_clientsession(hass)
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client = WebServiceAPI(data[CONF_API_KEY], session=session)
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lat = data[CONF_LATITUDE]
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lng = data[CONF_LONGITUDE]
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distance = data[CONF_RADIUS]
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# Check that the provided latitude/longitude provide a response
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try:
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test_data = await client.observations.latLong(lat, lng, distance=distance)
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except InvalidKeyError as exc:
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raise InvalidAuth from exc
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except AirNowError as exc:
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raise CannotConnect from exc
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if not test_data:
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raise InvalidLocation
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# Validation Succeeded
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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 AirNow."""
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VERSION = 1
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async def async_step_user(self, user_input=None):
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"""Handle the initial step."""
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errors = {}
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if user_input is not None:
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# Set a unique id based on latitude/longitude
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await self.async_set_unique_id(
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f"{user_input[CONF_LATITUDE]}-{user_input[CONF_LONGITUDE]}"
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)
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self._abort_if_unique_id_configured()
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try:
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# Validate inputs
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await validate_input(self.hass, user_input)
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except CannotConnect:
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errors["base"] = "cannot_connect"
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except InvalidAuth:
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errors["base"] = "invalid_auth"
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except InvalidLocation:
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errors["base"] = "invalid_location"
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except Exception: # pylint: disable=broad-except
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_LOGGER.exception("Unexpected exception")
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errors["base"] = "unknown"
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else:
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# Create Entry
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return self.async_create_entry(
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title=f"AirNow Sensor at {user_input[CONF_LATITUDE]}, {user_input[CONF_LONGITUDE]}",
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data=user_input,
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)
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return self.async_show_form(
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step_id="user",
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data_schema=vol.Schema(
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{
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vol.Required(CONF_API_KEY): str,
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vol.Optional(
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CONF_LATITUDE, default=self.hass.config.latitude
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): cv.latitude,
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vol.Optional(
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CONF_LONGITUDE, default=self.hass.config.longitude
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): cv.longitude,
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vol.Optional(CONF_RADIUS, default=150): int,
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}
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),
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errors=errors,
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)
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class CannotConnect(exceptions.HomeAssistantError):
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"""Error to indicate we cannot connect."""
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class InvalidAuth(exceptions.HomeAssistantError):
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"""Error to indicate there is invalid auth."""
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class InvalidLocation(exceptions.HomeAssistantError):
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"""Error to indicate the location is invalid."""
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