58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
"""DataUpdateCoordinator for the BSB-Lan integration."""
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from __future__ import annotations
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from datetime import timedelta
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from random import randint
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from bsblan import BSBLAN, BSBLANConnectionError
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from bsblan.models import State
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.const import CONF_HOST
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
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from .const import DOMAIN, LOGGER, SCAN_INTERVAL
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class BSBLanUpdateCoordinator(DataUpdateCoordinator[State]):
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"""The BSB-Lan update coordinator."""
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config_entry: ConfigEntry
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def __init__(
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self,
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hass: HomeAssistant,
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config_entry: ConfigEntry,
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client: BSBLAN,
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) -> None:
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"""Initialize the BSB-Lan coordinator."""
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self.client = client
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super().__init__(
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hass,
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LOGGER,
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name=f"{DOMAIN}_{config_entry.data[CONF_HOST]}",
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# use the default scan interval and add a random number of seconds to avoid timeouts when
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# the BSB-Lan device is already/still busy retrieving data,
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# e.g. for MQTT or internal logging.
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update_interval=SCAN_INTERVAL + timedelta(seconds=randint(1, 8)),
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)
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async def _async_update_data(self) -> State:
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"""Get state from BSB-Lan device."""
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# use the default scan interval and add a random number of seconds to avoid timeouts when
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# the BSB-Lan device is already/still busy retrieving data, e.g. for MQTT or internal logging.
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self.update_interval = SCAN_INTERVAL + timedelta(seconds=randint(1, 8))
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try:
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return await self.client.state()
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except BSBLANConnectionError as err:
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raise UpdateFailed(
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f"Error while establishing connection with "
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f"BSB-Lan device at {self.config_entry.data[CONF_HOST]}"
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) from err
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