core/homeassistant/components/knx/text.py

92 lines
3.0 KiB
Python

"""Support for KNX/IP text."""
from __future__ import annotations
from xknx import XKNX
from xknx.devices import Notification as XknxNotification
from xknx.dpt import DPTLatin1
from homeassistant import config_entries
from homeassistant.components.text import TextEntity
from homeassistant.const import (
CONF_ENTITY_CATEGORY,
CONF_MODE,
CONF_NAME,
CONF_TYPE,
STATE_UNAVAILABLE,
STATE_UNKNOWN,
Platform,
)
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.restore_state import RestoreEntity
from homeassistant.helpers.typing import ConfigType
from . import KNXModule
from .const import CONF_RESPOND_TO_READ, CONF_STATE_ADDRESS, KNX_ADDRESS, KNX_MODULE_KEY
from .entity import KnxYamlEntity
async def async_setup_entry(
hass: HomeAssistant,
config_entry: config_entries.ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up sensor(s) for KNX platform."""
knx_module = hass.data[KNX_MODULE_KEY]
config: list[ConfigType] = knx_module.config_yaml[Platform.TEXT]
async_add_entities(KNXText(knx_module, entity_config) for entity_config in config)
def _create_notification(xknx: XKNX, config: ConfigType) -> XknxNotification:
"""Return a KNX Notification to be used within XKNX."""
return XknxNotification(
xknx,
name=config[CONF_NAME],
group_address=config[KNX_ADDRESS],
group_address_state=config.get(CONF_STATE_ADDRESS),
respond_to_read=config[CONF_RESPOND_TO_READ],
value_type=config[CONF_TYPE],
)
class KNXText(KnxYamlEntity, TextEntity, RestoreEntity):
"""Representation of a KNX text."""
_device: XknxNotification
_attr_native_max = 14
def __init__(self, knx_module: KNXModule, config: ConfigType) -> None:
"""Initialize a KNX text."""
super().__init__(
knx_module=knx_module,
device=_create_notification(knx_module.xknx, config),
)
self._attr_mode = config[CONF_MODE]
self._attr_pattern = (
r"[\u0000-\u00ff]*" # Latin-1
if issubclass(self._device.remote_value.dpt_class, DPTLatin1)
else r"[\u0000-\u007f]*" # ASCII
)
self._attr_entity_category = config.get(CONF_ENTITY_CATEGORY)
self._attr_unique_id = str(self._device.remote_value.group_address)
async def async_added_to_hass(self) -> None:
"""Restore last state."""
await super().async_added_to_hass()
if not self._device.remote_value.readable and (
last_state := await self.async_get_last_state()
):
if last_state.state not in (STATE_UNKNOWN, STATE_UNAVAILABLE):
self._device.remote_value.value = last_state.state
@property
def native_value(self) -> str | None:
"""Return the value reported by the text."""
return self._device.message
async def async_set_value(self, value: str) -> None:
"""Change the value."""
await self._device.set(value)