92 lines
3.5 KiB
Python
92 lines
3.5 KiB
Python
"""Base class for UniFi entities."""
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import logging
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from homeassistant.core import callback
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from homeassistant.helpers.dispatcher import async_dispatcher_connect
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from homeassistant.helpers.entity import Entity
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from homeassistant.helpers.entity_registry import async_entries_for_device
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LOGGER = logging.getLogger(__name__)
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class UniFiBase(Entity):
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"""UniFi entity base class."""
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DOMAIN = ""
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TYPE = ""
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def __init__(self, item, controller) -> None:
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"""Set up UniFi entity base.
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Register mac to controller entities to cover disabled entities.
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"""
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self._item = item
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self.controller = controller
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self.controller.entities[self.DOMAIN][self.TYPE].add(item.mac)
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async def async_added_to_hass(self) -> None:
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"""Entity created."""
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LOGGER.debug("New %s entity %s (%s)", self.TYPE, self.entity_id, self._item.mac)
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for signal, method in (
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(self.controller.signal_reachable, self.async_update_callback),
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(self.controller.signal_options_update, self.options_updated),
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(self.controller.signal_remove, self.remove_item),
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):
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self.async_on_remove(async_dispatcher_connect(self.hass, signal, method))
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self._item.register_callback(self.async_update_callback)
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async def async_will_remove_from_hass(self) -> None:
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"""Disconnect object when removed."""
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LOGGER.debug(
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"Removing %s entity %s (%s)", self.TYPE, self.entity_id, self._item.mac
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)
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self._item.remove_callback(self.async_update_callback)
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self.controller.entities[self.DOMAIN][self.TYPE].remove(self._item.mac)
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async def async_remove(self):
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"""Clean up when removing entity.
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Remove entity if no entry in entity registry exist.
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Remove entity registry entry if no entry in device registry exist.
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Remove device registry entry if there is only one linked entity (this entity).
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Remove entity registry entry if there are more than one entity linked to the device registry entry.
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"""
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entity_registry = await self.hass.helpers.entity_registry.async_get_registry()
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entity_entry = entity_registry.async_get(self.entity_id)
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if not entity_entry:
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await super().async_remove()
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return
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device_registry = await self.hass.helpers.device_registry.async_get_registry()
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device_entry = device_registry.async_get(entity_entry.device_id)
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if not device_entry:
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entity_registry.async_remove(self.entity_id)
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return
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if len(async_entries_for_device(entity_registry, entity_entry.device_id)) == 1:
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device_registry.async_remove_device(device_entry.id)
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return
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entity_registry.async_remove(self.entity_id)
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@callback
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def async_update_callback(self) -> None:
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"""Update the entity's state."""
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LOGGER.debug(
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"Updating %s entity %s (%s)", self.TYPE, self.entity_id, self._item.mac
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)
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self.async_write_ha_state()
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async def options_updated(self) -> None:
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"""Config entry options are updated, remove entity if option is disabled."""
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raise NotImplementedError
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async def remove_item(self, mac_addresses: set) -> None:
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"""Remove entity if MAC is part of set."""
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if self._item.mac in mac_addresses:
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await self.async_remove()
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@property
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def should_poll(self) -> bool:
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"""No polling needed."""
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return False
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