mirror of
https://github.com/home-assistant/core
synced 2024-10-10 12:28:01 +02:00
96 lines
3.3 KiB
Python
96 lines
3.3 KiB
Python
"""The Fjäråskupan data update coordinator."""
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from __future__ import annotations
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from collections.abc import AsyncIterator
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from contextlib import asynccontextmanager
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from datetime import timedelta
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import logging
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from fjaraskupan import Device, State
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from homeassistant.components.bluetooth import (
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BluetoothServiceInfoBleak,
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async_address_present,
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async_ble_device_from_address,
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)
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from homeassistant.core import HomeAssistant
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from homeassistant.exceptions import HomeAssistantError
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from homeassistant.helpers.device_registry import DeviceInfo
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from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
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_LOGGER = logging.getLogger(__name__)
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class UnableToConnect(HomeAssistantError):
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"""Exception to indicate that we cannot connect to device."""
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class FjaraskupanCoordinator(DataUpdateCoordinator[State]):
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"""Update coordinator for each device."""
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def __init__(
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self, hass: HomeAssistant, device: Device, device_info: DeviceInfo
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) -> None:
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"""Initialize the coordinator."""
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self.device = device
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self.device_info = device_info
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self._refresh_was_scheduled = False
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super().__init__(
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hass, _LOGGER, name="Fjäråskupan", update_interval=timedelta(seconds=120)
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)
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async def _async_refresh(
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self,
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log_failures: bool = True,
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raise_on_auth_failed: bool = False,
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scheduled: bool = False,
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raise_on_entry_error: bool = False,
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) -> None:
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self._refresh_was_scheduled = scheduled
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await super()._async_refresh(
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log_failures=log_failures,
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raise_on_auth_failed=raise_on_auth_failed,
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scheduled=scheduled,
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raise_on_entry_error=raise_on_entry_error,
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)
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async def _async_update_data(self) -> State:
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"""Handle an explicit update request."""
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if self._refresh_was_scheduled:
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if async_address_present(self.hass, self.device.address, False):
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return self.device.state
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raise UpdateFailed(
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"No data received within schedule, and device is no longer present"
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)
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if (
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ble_device := async_ble_device_from_address(
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self.hass, self.device.address, True
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)
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) is None:
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raise UpdateFailed("No connectable path to device")
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async with self.device.connect(ble_device) as device:
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await device.update()
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return self.device.state
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def detection_callback(self, service_info: BluetoothServiceInfoBleak) -> None:
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"""Handle a new announcement of data."""
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self.device.detection_callback(service_info.device, service_info.advertisement)
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self.async_set_updated_data(self.device.state)
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@asynccontextmanager
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async def async_connect_and_update(self) -> AsyncIterator[Device]:
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"""Provide an up-to-date device for use during connections."""
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if (
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ble_device := async_ble_device_from_address(
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self.hass, self.device.address, True
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)
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) is None:
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raise UnableToConnect("No connectable path to device")
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async with self.device.connect(ble_device) as device:
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yield device
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self.async_set_updated_data(self.device.state)
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