core/homeassistant/components/lcn/entity.py

91 lines
2.9 KiB
Python

"""LCN parent entity class."""
from collections.abc import Callable
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import CONF_ADDRESS, CONF_DOMAIN, CONF_NAME, CONF_RESOURCE
from homeassistant.helpers.device_registry import DeviceInfo
from homeassistant.helpers.entity import Entity
from homeassistant.helpers.typing import ConfigType
from .const import CONF_DOMAIN_DATA, DOMAIN
from .helpers import (
AddressType,
DeviceConnectionType,
InputType,
generate_unique_id,
get_device_connection,
get_device_model,
)
class LcnEntity(Entity):
"""Parent class for all entities associated with the LCN component."""
_attr_should_poll = False
device_connection: DeviceConnectionType
def __init__(
self,
config: ConfigType,
config_entry: ConfigEntry,
) -> None:
"""Initialize the LCN device."""
self.config = config
self.config_entry = config_entry
self.address: AddressType = config[CONF_ADDRESS]
self._unregister_for_inputs: Callable | None = None
self._name: str = config[CONF_NAME]
@property
def unique_id(self) -> str:
"""Return a unique ID."""
return generate_unique_id(
self.config_entry.entry_id, self.address, self.config[CONF_RESOURCE]
)
@property
def device_info(self) -> DeviceInfo | None:
"""Return device specific attributes."""
address = f"{'g' if self.address[2] else 'm'}{self.address[0]:03d}{self.address[1]:03d}"
model = (
"LCN resource"
f" ({get_device_model(self.config[CONF_DOMAIN], self.config[CONF_DOMAIN_DATA])})"
)
return DeviceInfo(
identifiers={(DOMAIN, self.unique_id)},
name=f"{address}.{self.config[CONF_RESOURCE]}",
model=model,
manufacturer="Issendorff",
via_device=(
DOMAIN,
generate_unique_id(
self.config_entry.entry_id, self.config[CONF_ADDRESS]
),
),
)
async def async_added_to_hass(self) -> None:
"""Run when entity about to be added to hass."""
self.device_connection = get_device_connection(
self.hass, self.config[CONF_ADDRESS], self.config_entry
)
if not self.device_connection.is_group:
self._unregister_for_inputs = self.device_connection.register_for_inputs(
self.input_received
)
async def async_will_remove_from_hass(self) -> None:
"""Run when entity will be removed from hass."""
if self._unregister_for_inputs is not None:
self._unregister_for_inputs()
@property
def name(self) -> str:
"""Return the name of the device."""
return self._name
def input_received(self, input_obj: InputType) -> None:
"""Set state/value when LCN input object (command) is received."""