mirror of https://github.com/home-assistant/core
93 lines
3.1 KiB
Python
93 lines
3.1 KiB
Python
"""Classes shared among Wemo entities."""
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from __future__ import annotations
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from collections.abc import Generator
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import contextlib
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import logging
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from pywemo.exceptions import ActionException
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from homeassistant.helpers.device_registry import DeviceInfo
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from homeassistant.helpers.update_coordinator import CoordinatorEntity
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from .coordinator import DeviceCoordinator
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_LOGGER = logging.getLogger(__name__)
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class WemoEntity(CoordinatorEntity[DeviceCoordinator]):
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"""Common methods for Wemo entities."""
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# Most pyWeMo devices are associated with a single Home Assistant entity. When
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# that is not the case, name_suffix & unique_id_suffix can be used to provide
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# names and unique ids for additional Home Assistant entities.
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_name_suffix: str | None = None
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_unique_id_suffix: str | None = None
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def __init__(self, coordinator: DeviceCoordinator) -> None:
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"""Initialize the WeMo device."""
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super().__init__(coordinator)
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self.wemo = coordinator.wemo
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self._device_info = coordinator.device_info
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@property
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def name_suffix(self) -> str | None:
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"""Suffix to append to the WeMo device name."""
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return self._name_suffix
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@property
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def name(self) -> str:
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"""Return the name of the device if any."""
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wemo_name: str = self.wemo.name
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if suffix := self.name_suffix:
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return f"{wemo_name} {suffix}"
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return wemo_name
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@property
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def unique_id_suffix(self) -> str | None:
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"""Suffix to append to the WeMo device's unique ID."""
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if self._unique_id_suffix is None and self.name_suffix is not None:
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return self.name_suffix.lower()
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return self._unique_id_suffix
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@property
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def unique_id(self) -> str:
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"""Return the id of this WeMo device."""
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serial_number: str = self.wemo.serial_number
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if suffix := self.unique_id_suffix:
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return f"{serial_number}_{suffix}"
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return serial_number
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@property
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def device_info(self) -> DeviceInfo:
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"""Return the device info."""
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return self._device_info
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@contextlib.contextmanager
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def _wemo_call_wrapper(self, message: str) -> Generator[None]:
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"""Wrap calls to the device that change its state.
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1. Takes care of making available=False when communications with the
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device fails.
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2. Ensures all entities sharing the same coordinator are aware of
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updates to the device state.
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"""
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try:
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yield
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except ActionException as err:
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_LOGGER.warning("Could not %s for %s (%s)", message, self.name, err)
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self.coordinator.last_exception = err
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self.coordinator.last_update_success = False # Used for self.available.
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finally:
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self.hass.add_job(self.coordinator.async_update_listeners)
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class WemoBinaryStateEntity(WemoEntity):
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"""Base for devices that return on/off state via device.get_state()."""
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@property
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def is_on(self) -> bool:
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"""Return true if the state is on."""
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return self.wemo.get_state() != 0
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