118 lines
3.8 KiB
Python
118 lines
3.8 KiB
Python
"""Config flow for NMBS integration."""
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from typing import Any
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from pyrail import iRail
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from pyrail.models import StationDetails
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import voluptuous as vol
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from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
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from homeassistant.helpers.aiohttp_client import async_get_clientsession
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from homeassistant.helpers.selector import (
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BooleanSelector,
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SelectOptionDict,
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SelectSelector,
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SelectSelectorConfig,
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SelectSelectorMode,
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)
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from .const import (
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CONF_EXCLUDE_VIAS,
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CONF_SHOW_ON_MAP,
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CONF_STATION_FROM,
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CONF_STATION_TO,
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DOMAIN,
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)
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class NMBSConfigFlow(ConfigFlow, domain=DOMAIN):
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"""NMBS config flow."""
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def __init__(self) -> None:
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"""Initialize."""
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self.stations: list[StationDetails] = []
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async def _fetch_stations(self) -> list[StationDetails]:
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"""Fetch the stations."""
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api_client = iRail(session=async_get_clientsession(self.hass))
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stations_response = await api_client.get_stations()
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if stations_response is None:
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raise CannotConnect("The API is currently unavailable.")
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return stations_response.stations
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async def _fetch_stations_choices(self) -> list[SelectOptionDict]:
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"""Fetch the stations options."""
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if len(self.stations) == 0:
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self.stations = await self._fetch_stations()
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return [
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SelectOptionDict(value=station.id, label=station.standard_name)
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for station in self.stations
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]
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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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) -> ConfigFlowResult:
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"""Handle the step to setup a connection between 2 stations."""
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try:
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choices = await self._fetch_stations_choices()
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except CannotConnect:
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return self.async_abort(reason="api_unavailable")
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errors: dict = {}
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if user_input is not None:
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if user_input[CONF_STATION_FROM] == user_input[CONF_STATION_TO]:
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errors["base"] = "same_station"
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else:
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[station_from] = [
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station
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for station in self.stations
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if station.id == user_input[CONF_STATION_FROM]
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]
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[station_to] = [
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station
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for station in self.stations
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if station.id == user_input[CONF_STATION_TO]
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]
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vias = "_excl_vias" if user_input.get(CONF_EXCLUDE_VIAS) else ""
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await self.async_set_unique_id(
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f"{user_input[CONF_STATION_FROM]}_{user_input[CONF_STATION_TO]}{vias}"
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)
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self._abort_if_unique_id_configured()
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config_entry_name = f"Train from {station_from.standard_name} to {station_to.standard_name}"
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return self.async_create_entry(
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title=config_entry_name,
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data=user_input,
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)
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schema = vol.Schema(
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{
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vol.Required(CONF_STATION_FROM): SelectSelector(
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SelectSelectorConfig(
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options=choices,
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mode=SelectSelectorMode.DROPDOWN,
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)
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),
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vol.Required(CONF_STATION_TO): SelectSelector(
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SelectSelectorConfig(
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options=choices,
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mode=SelectSelectorMode.DROPDOWN,
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)
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),
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vol.Optional(CONF_EXCLUDE_VIAS): BooleanSelector(),
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vol.Optional(CONF_SHOW_ON_MAP): BooleanSelector(),
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},
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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=schema,
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errors=errors,
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)
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class CannotConnect(Exception):
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"""Error to indicate we cannot connect to NMBS."""
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