82 lines
2.6 KiB
Python
82 lines
2.6 KiB
Python
"""Support for Home Assistant Updater binary sensors."""
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from homeassistant.core import callback
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from homeassistant.components.binary_sensor import BinarySensorDevice
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from homeassistant.helpers.dispatcher import async_dispatcher_connect
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from . import ATTR_NEWEST_VERSION, ATTR_RELEASE_NOTES, DISPATCHER_REMOTE_UPDATE, Updater
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async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
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"""Set up the updater binary sensors."""
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async_add_entities([UpdaterBinary()])
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class UpdaterBinary(BinarySensorDevice):
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"""Representation of an updater binary sensor."""
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def __init__(self):
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"""Initialize the binary sensor."""
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self._update_available = None
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self._release_notes = None
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self._newest_version = None
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self._unsub_dispatcher = None
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@property
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def name(self) -> str:
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"""Return the name of the binary sensor, if any."""
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return "Updater"
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@property
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def unique_id(self) -> str:
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"""Return a unique ID."""
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return "updater"
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@property
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def is_on(self) -> bool:
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"""Return true if the binary sensor is on."""
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return self._update_available
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@property
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def available(self) -> bool:
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"""Return True if entity is available."""
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return self._update_available is not None
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@property
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def should_poll(self) -> bool:
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"""Return True if entity has to be polled for state."""
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return False
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@property
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def device_state_attributes(self) -> dict:
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"""Return the optional state attributes."""
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data = super().device_state_attributes
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if data is None:
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data = {}
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if self._release_notes:
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data[ATTR_RELEASE_NOTES] = self._release_notes
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if self._newest_version:
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data[ATTR_NEWEST_VERSION] = self._newest_version
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return data
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async def async_added_to_hass(self):
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"""Register update dispatcher."""
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@callback
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def async_state_update(updater: Updater):
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"""Update callback."""
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self._newest_version = updater.newest_version
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self._release_notes = updater.release_notes
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self._update_available = updater.update_available
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self.async_schedule_update_ha_state()
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self._unsub_dispatcher = async_dispatcher_connect(
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self.hass, DISPATCHER_REMOTE_UPDATE, async_state_update
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)
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async def async_will_remove_from_hass(self):
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"""Register update dispatcher."""
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if self._unsub_dispatcher is not None:
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self._unsub_dispatcher()
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self._unsub_dispatcher = None
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