core/homeassistant/components/ads/select.py

87 lines
2.6 KiB
Python

"""Support for ADS select entities."""
from __future__ import annotations
import pyads
import voluptuous as vol
from homeassistant.components.select import (
PLATFORM_SCHEMA as SELECT_PLATFORM_SCHEMA,
SelectEntity,
)
from homeassistant.const import CONF_NAME
from homeassistant.core import HomeAssistant
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
from .const import CONF_ADS_VAR, DATA_ADS
from .entity import AdsEntity
from .hub import AdsHub
DEFAULT_NAME = "ADS select"
CONF_OPTIONS = "options"
PLATFORM_SCHEMA = SELECT_PLATFORM_SCHEMA.extend(
{
vol.Required(CONF_ADS_VAR): cv.string,
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
vol.Required(CONF_OPTIONS): vol.All(cv.ensure_list, [cv.string]),
}
)
def setup_platform(
hass: HomeAssistant,
config: ConfigType,
add_entities: AddEntitiesCallback,
discovery_info: DiscoveryInfoType | None = None,
) -> None:
"""Set up an ADS select device."""
ads_hub = hass.data[DATA_ADS]
ads_var: str = config[CONF_ADS_VAR]
name: str = config[CONF_NAME]
options: list[str] = config[CONF_OPTIONS]
entity = AdsSelect(ads_hub, ads_var, name, options)
add_entities([entity])
class AdsSelect(AdsEntity, SelectEntity):
"""Representation of an ADS select entity."""
def __init__(
self,
ads_hub: AdsHub,
ads_var: str,
name: str,
options: list[str],
) -> None:
"""Initialize the AdsSelect entity."""
super().__init__(ads_hub, name, ads_var)
self._attr_options = options
self._attr_current_option = None
async def async_added_to_hass(self) -> None:
"""Register device notification."""
await self.async_initialize_device(self._ads_var, pyads.PLCTYPE_INT)
self._ads_hub.add_device_notification(
self._ads_var, pyads.PLCTYPE_INT, self._handle_ads_value
)
def select_option(self, option: str) -> None:
"""Change the selected option."""
if option in self._attr_options:
index = self._attr_options.index(option)
self._ads_hub.write_by_name(self._ads_var, index, pyads.PLCTYPE_INT)
self._attr_current_option = option
def _handle_ads_value(self, name: str, value: int) -> None:
"""Handle the value update from ADS."""
if 0 <= value < len(self._attr_options):
self._attr_current_option = self._attr_options[value]
self.schedule_update_ha_state()