105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
"""The Tankerkoenig update coordinator."""
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from __future__ import annotations
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from datetime import timedelta
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import logging
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from math import ceil
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from aiotankerkoenig import (
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PriceInfo,
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Station,
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Tankerkoenig,
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TankerkoenigConnectionError,
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TankerkoenigError,
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TankerkoenigInvalidKeyError,
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TankerkoenigRateLimitError,
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)
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.const import CONF_API_KEY, CONF_SHOW_ON_MAP
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from homeassistant.core import HomeAssistant
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from homeassistant.exceptions import ConfigEntryAuthFailed, ConfigEntryNotReady
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from homeassistant.helpers.aiohttp_client import async_get_clientsession
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from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
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from .const import CONF_FUEL_TYPES, CONF_STATIONS
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_LOGGER = logging.getLogger(__name__)
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class TankerkoenigDataUpdateCoordinator(DataUpdateCoordinator):
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"""Get the latest data from the API."""
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def __init__(
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self,
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hass: HomeAssistant,
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entry: ConfigEntry,
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name: str,
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update_interval: int,
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) -> None:
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"""Initialize the data object."""
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super().__init__(
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hass=hass,
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logger=_LOGGER,
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name=name,
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update_interval=timedelta(minutes=update_interval),
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)
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self._selected_stations: list[str] = entry.data[CONF_STATIONS]
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self.stations: dict[str, Station] = {}
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self.fuel_types: list[str] = entry.data[CONF_FUEL_TYPES]
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self.show_on_map: bool = entry.options[CONF_SHOW_ON_MAP]
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self._tankerkoenig = Tankerkoenig(
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api_key=entry.data[CONF_API_KEY], session=async_get_clientsession(hass)
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)
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async def async_setup(self) -> None:
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"""Set up the tankerkoenig API."""
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for station_id in self._selected_stations:
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try:
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station = await self._tankerkoenig.station_details(station_id)
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except TankerkoenigInvalidKeyError as err:
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raise ConfigEntryAuthFailed(err) from err
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except TankerkoenigConnectionError as err:
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raise ConfigEntryNotReady(err) from err
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except TankerkoenigError as err:
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_LOGGER.error("Error when adding station %s %s", station_id, err)
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continue
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self.stations[station_id] = station
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if len(self.stations) > 10:
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_LOGGER.warning(
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"Found more than 10 stations to check. "
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"This might invalidate your api-key on the long run. "
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"Try using a smaller radius"
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)
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async def _async_update_data(self) -> dict[str, PriceInfo]:
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"""Get the latest data from tankerkoenig.de."""
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station_ids = list(self.stations)
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prices = {}
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# The API seems to only return at most 10 results, so split the list in chunks of 10
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# and merge it together.
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for index in range(ceil(len(station_ids) / 10)):
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try:
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data = await self._tankerkoenig.prices(
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station_ids[index * 10 : (index + 1) * 10]
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)
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except TankerkoenigInvalidKeyError as err:
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raise ConfigEntryAuthFailed(err) from err
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except (TankerkoenigError, TankerkoenigConnectionError) as err:
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if isinstance(err, TankerkoenigRateLimitError):
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_LOGGER.warning(
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"API rate limit reached, consider to increase polling interval"
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)
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raise UpdateFailed(err) from err
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prices.update(data)
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return prices
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