56 lines
1.9 KiB
Python
56 lines
1.9 KiB
Python
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"""Base class Harmony entities."""
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import logging
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from homeassistant.helpers.entity import Entity
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from homeassistant.helpers.event import async_call_later
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from .data import HarmonyData
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_LOGGER = logging.getLogger(__name__)
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TIME_MARK_DISCONNECTED = 10
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class HarmonyEntity(Entity):
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"""Base entity for Harmony with connection state handling."""
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def __init__(self, data: HarmonyData) -> None:
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"""Initialize the Harmony base entity."""
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super().__init__()
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self._unsub_mark_disconnected = None
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self._name = data.name
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self._data = data
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self._attr_should_poll = False
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@property
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def available(self) -> bool:
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"""Return True if we're connected to the Hub, otherwise False."""
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return self._data.available
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async def async_got_connected(self, _=None):
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"""Notification that we're connected to the HUB."""
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_LOGGER.debug("%s: connected to the HUB", self._name)
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self.async_write_ha_state()
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self._clear_disconnection_delay()
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async def async_got_disconnected(self, _=None):
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"""Notification that we're disconnected from the HUB."""
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_LOGGER.debug("%s: disconnected from the HUB", self._name)
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# We're going to wait for 10 seconds before announcing we're
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# unavailable, this to allow a reconnection to happen.
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self._unsub_mark_disconnected = async_call_later(
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self.hass, TIME_MARK_DISCONNECTED, self._mark_disconnected_if_unavailable
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)
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def _clear_disconnection_delay(self):
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if self._unsub_mark_disconnected:
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self._unsub_mark_disconnected()
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self._unsub_mark_disconnected = None
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def _mark_disconnected_if_unavailable(self, _):
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self._unsub_mark_disconnected = None
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if not self.available:
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# Still disconnected. Let the state engine know.
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self.async_write_ha_state()
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