core/homeassistant/helpers/device.py

98 lines
2.7 KiB
Python

"""Provides useful helpers for handling devices."""
from homeassistant.core import HomeAssistant, callback
from . import device_registry as dr, entity_registry as er
@callback
def async_entity_id_to_device_id(
hass: HomeAssistant,
entity_id_or_uuid: str,
) -> str | None:
"""Resolve the device id to the entity id or entity uuid."""
ent_reg = er.async_get(hass)
entity_id = er.async_validate_entity_id(ent_reg, entity_id_or_uuid)
if (entity := ent_reg.async_get(entity_id)) is None:
return None
return entity.device_id
@callback
def async_device_info_to_link_from_entity(
hass: HomeAssistant,
entity_id_or_uuid: str,
) -> dr.DeviceInfo | None:
"""DeviceInfo with information to link a device from an entity.
DeviceInfo will only return information to categorize as a link.
"""
return async_device_info_to_link_from_device_id(
hass,
async_entity_id_to_device_id(hass, entity_id_or_uuid),
)
@callback
def async_device_info_to_link_from_device_id(
hass: HomeAssistant,
device_id: str | None,
) -> dr.DeviceInfo | None:
"""DeviceInfo with information to link a device from a device id.
DeviceInfo will only return information to categorize as a link.
"""
dev_reg = dr.async_get(hass)
if device_id is None or (device := dev_reg.async_get(device_id=device_id)) is None:
return None
return dr.DeviceInfo(
identifiers=device.identifiers,
connections=device.connections,
)
@callback
def async_remove_stale_devices_links_keep_entity_device(
hass: HomeAssistant,
entry_id: str,
source_entity_id_or_uuid: str,
) -> None:
"""Remove the link between stale devices and a configuration entry.
Only the device passed in the source_entity_id_or_uuid parameter
linked to the configuration entry will be maintained.
"""
async_remove_stale_devices_links_keep_current_device(
hass=hass,
entry_id=entry_id,
current_device_id=async_entity_id_to_device_id(hass, source_entity_id_or_uuid),
)
@callback
def async_remove_stale_devices_links_keep_current_device(
hass: HomeAssistant,
entry_id: str,
current_device_id: str | None,
) -> None:
"""Remove the link between stale devices and a configuration entry.
Only the device passed in the current_device_id parameter linked to
the configuration entry will be maintained.
"""
dev_reg = dr.async_get(hass)
# Removes all devices from the config entry that are not the same as the current device
for device in dev_reg.devices.get_devices_for_config_entry_id(entry_id):
if device.id == current_device_id:
continue
dev_reg.async_update_device(device.id, remove_config_entry_id=entry_id)