text: """Support KNX devices."""
  from __future__ import annotations
  
  import asyncio
  import logging
  from typing import Final
  
  import voluptuous as vol
  from xknx import XKNX
  from xknx.core import XknxConnectionState
  from xknx.core.telegram_queue import TelegramQueue
  from xknx.dpt import DPTArray, DPTBase, DPTBinary
  from xknx.exceptions import XKNXException
  from xknx.io import ConnectionConfig, ConnectionType
  from xknx.telegram import AddressFilter, Telegram
  from xknx.telegram.address import parse_device_group_address
  from xknx.telegram.apci import GroupValueRead, GroupValueResponse, GroupValueWrite
  
  from homeassistant.const import (
      CONF_HOST,
      CONF_PORT,
      EVENT_HOMEASSISTANT_STOP,
      SERVICE_RELOAD,
  )
  from homeassistant.core import Event, HomeAssistant, ServiceCall
  from homeassistant.exceptions import HomeAssistantError
  from homeassistant.helpers import discovery
  import homeassistant.helpers.config_validation as cv
  from homeassistant.helpers.entity_platform import async_get_platforms
  from homeassistant.helpers.reload import async_integration_yaml_config
  from homeassistant.helpers.service import async_register_admin_service
  from homeassistant.helpers.typing import ConfigType
  
  from .const import (
      CONF_KNX_EXPOSE,
      CONF_KNX_INDIVIDUAL_ADDRESS,
      CONF_KNX_ROUTING,
      CONF_KNX_TUNNELING,
      DOMAIN,
      KNX_ADDRESS,
      SupportedPlatforms,
  )
  from .expose import KNXExposeSensor, KNXExposeTime, create_knx_exposure
  from .schema import (
      BinarySensorSchema,
      ClimateSchema,
      ConnectionSchema,
      CoverSchema,
      ExposeSchema,
      FanSchema,
      LightSchema,
      NotifySchema,
      NumberSchema,
      SceneSchema,
      SelectSchema,
      SensorSchema,
      SwitchSchema,
      WeatherSchema,
      ga_validator,
      sensor_type_validator,
  )
  
  _LOGGER = logging.getLogger(__name__)
  
  
  CONF_KNX_FIRE_EVENT: Final = "fire_event"
  CONF_KNX_EVENT_FILTER: Final = "event_filter"
  
  SERVICE_KNX_SEND: Final = "send"
  SERVICE_KNX_ATTR_PAYLOAD: Final = "payload"
  SERVICE_KNX_ATTR_TYPE: Final = "type"
  SERVICE_KNX_ATTR_REMOVE: Final = "remove"
  SERVICE_KNX_EVENT_REGISTER: Final = "event_register"
  SERVICE_KNX_EXPOSURE_REGISTER: Final = "exposure_register"
  SERVICE_KNX_READ: Final = "read"
  
  CONFIG_SCHEMA = vol.Schema(
      {
          DOMAIN: vol.All(
              # deprecated since 2021.4
              cv.deprecated("config_file"),
              # deprecated since 2021.2
              cv.deprecated(CONF_KNX_FIRE_EVENT),
              cv.deprecated("fire_event_filter", replacement_key=CONF_KNX_EVENT_FILTER),
              vol.Schema(
                  {
                      **ConnectionSchema.SCHEMA,
                      vol.Optional(CONF_KNX_FIRE_EVENT): cv.boolean,
                      vol.Optional(CONF_KNX_EVENT_FILTER, default=[]): vol.All(
                          cv.ensure_list, [cv.string]
                      ),
                      **ExposeSchema.platform_node(),
                      **BinarySensorSchema.platform_node(),
                      **ClimateSchema.platform_node(),
                      **CoverSchema.platform_node(),
                      **FanSchema.platform_node(),
                      **LightSchema.platform_node(),
                      **NotifySchema.platform_node(),
                      **NumberSchema.platform_node(),
                      **SceneSchema.platform_node(),
                      **SelectSchema.platform_node(),
                      **SensorSchema.platform_node(),
                      **SwitchSchema.platform_node(),
                      **WeatherSchema.platform_node(),
                  }
              ),
          )
      },
      extra=vol.ALLOW_EXTRA,
  )
  
  SERVICE_KNX_SEND_SCHEMA = vol.Any(
      vol.Schema(
          {
              vol.Required(KNX_ADDRESS): vol.All(
                  cv.ensure_list,
                  [ga_validator],
              ),
              vol.Required(SERVICE_KNX_ATTR_PAYLOAD): cv.match_all,
              vol.Required(SERVICE_KNX_ATTR_TYPE): sensor_type_validator,
          }
      ),
      vol.Schema(
          # without type given payload is treated as raw bytes
          {
              vol.Required(KNX_ADDRESS): vol.All(
                  cv.ensure_list,
                  [ga_validator],
              ),
              vol.Required(SERVICE_KNX_ATTR_PAYLOAD): vol.Any(
                  cv.positive_int, [cv.positive_int]
              ),
          }
      ),
  )
  
  SERVICE_KNX_READ_SCHEMA = vol.Schema(
      {
          vol.Required(KNX_ADDRESS): vol.All(
              cv.ensure_list,
              [ga_validator],
          )
      }
  )
  
  SERVICE_KNX_EVENT_REGISTER_SCHEMA = vol.Schema(
      {
          vol.Required(KNX_ADDRESS): vol.All(
              cv.ensure_list,
              [ga_validator],
          ),
          vol.Optional(SERVICE_KNX_ATTR_REMOVE, default=False): cv.boolean,
      }
  )
  
  SERVICE_KNX_EXPOSURE_REGISTER_SCHEMA = vol.Any(
      ExposeSchema.EXPOSE_SENSOR_SCHEMA.extend(
          {
              vol.Optional(SERVICE_KNX_ATTR_REMOVE, default=False): cv.boolean,
          }
      ),
      vol.Schema(
          # for removing only `address` is required
          {
              vol.Required(KNX_ADDRESS): ga_validator,
              vol.Required(SERVICE_KNX_ATTR_REMOVE): vol.All(cv.boolean, True),
          },
          extra=vol.ALLOW_EXTRA,
      ),
  )
  
  
  async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
      """Set up the KNX integration."""
      try:
          knx_module = KNXModule(hass, config)
          hass.data[DOMAIN] = knx_module
          await knx_module.start()
      except XKNXException as ex:
          _LOGGER.warning("Could not connect to KNX interface: %s", ex)
          hass.components.persistent_notification.async_create(
              f"Could not connect to KNX interface: <br><b>{ex}</b>", title="KNX"
          )
  
      if CONF_KNX_EXPOSE in config[DOMAIN]:
          for expose_config in config[DOMAIN][CONF_KNX_EXPOSE]:
              knx_module.exposures.append(
                  create_knx_exposure(hass, knx_module.xknx, expose_config)
              )
  
      for platform in SupportedPlatforms:
          if platform.value not in config[DOMAIN]:
              continue
          hass.async_create_task(
              discovery.async_load_platform(
                  hass,
                  platform.value,
                  DOMAIN,
                  {
                      "platform_config": config[DOMAIN][platform.value],
                  },
                  config,
              )
          )
  
      hass.services.async_register(
          DOMAIN,
          SERVICE_KNX_SEND,
          knx_module.service_send_to_knx_bus,
          schema=SERVICE_KNX_SEND_SCHEMA,
      )
  
      hass.services.async_register(
          DOMAIN,
          SERVICE_KNX_READ,
          knx_module.service_read_to_knx_bus,
          schema=SERVICE_KNX_READ_SCHEMA,
      )
  
      async_register_admin_service(
          hass,
          DOMAIN,
          SERVICE_KNX_EVENT_REGISTER,
          knx_module.service_event_register_modify,
          schema=SERVICE_KNX_EVENT_REGISTER_SCHEMA,
      )
  
      async_register_admin_service(
          hass,
          DOMAIN,
          SERVICE_KNX_EXPOSURE_REGISTER,
          knx_module.service_exposure_register_modify,
          schema=SERVICE_KNX_EXPOSURE_REGISTER_SCHEMA,
      )
  
      async def reload_service_handler(service_call: ServiceCall) -> None:
          """Remove all KNX components and load new ones from config."""
  
          # First check for config file. If for some reason it is no longer there
          # or knx is no longer mentioned, stop the reload.
          config = await async_integration_yaml_config(hass, DOMAIN)
          if not config or DOMAIN not in config:
              return
  
          await asyncio.gather(
              *(platform.async_reset() for platform in async_get_platforms(hass, DOMAIN))
          )
          await knx_module.xknx.stop()
  
          await async_setup(hass, config)
  
      async_register_admin_service(
          hass, DOMAIN, SERVICE_RELOAD, reload_service_handler, schema=vol.Schema({})
      )
  
      return True
  
  
  class KNXModule:
      """Representation of KNX Object."""
  
      def __init__(self, hass: HomeAssistant, config: ConfigType) -> None:
          """Initialize KNX module."""
          self.hass = hass
          self.config = config
          self.connected = False
          self.exposures: list[KNXExposeSensor | KNXExposeTime] = []
          self.service_exposures: dict[str, KNXExposeSensor | KNXExposeTime] = {}
  
          self.init_xknx()
          self._knx_event_callback: TelegramQueue.Callback = self.register_callback()
          self.xknx.connection_manager.register_connection_state_changed_cb(
              self.connection_state_changed_cb
          )
  
      def init_xknx(self) -> None:
          """Initialize XKNX object."""
          self.xknx = XKNX(
              own_address=self.config[DOMAIN][CONF_KNX_INDIVIDUAL_ADDRESS],
              rate_limit=self.config[DOMAIN][ConnectionSchema.CONF_KNX_RATE_LIMIT],
              multicast_group=self.config[DOMAIN][ConnectionSchema.CONF_KNX_MCAST_GRP],
              multicast_port=self.config[DOMAIN][ConnectionSchema.CONF_KNX_MCAST_PORT],
              connection_config=self.connection_config(),
              state_updater=self.config[DOMAIN][ConnectionSchema.CONF_KNX_STATE_UPDATER],
          )
  
      async def start(self) -> None:
          """Start XKNX object. Connect to tunneling or Routing device."""
          await self.xknx.start()
          self.hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, self.stop)
  
      async def stop(self, event: Event) -> None:
          """Stop XKNX object. Disconnect from tunneling or Routing device."""
          await self.xknx.stop()
  
      def connection_config(self) -> ConnectionConfig:
          """Return the connection_config."""
          if CONF_KNX_TUNNELING in self.config[DOMAIN]:
              return self.connection_config_tunneling()
          if CONF_KNX_ROUTING in self.config[DOMAIN]:
              return self.connection_config_routing()
          return ConnectionConfig(auto_reconnect=True)
  
      def connection_config_routing(self) -> ConnectionConfig:
          """Return the connection_config if routing is configured."""
          local_ip = None
          # all configuration values are optional
          if self.config[DOMAIN][CONF_KNX_ROUTING] is not None:
              local_ip = self.config[DOMAIN][CONF_KNX_ROUTING].get(
                  ConnectionSchema.CONF_KNX_LOCAL_IP
              )
          return ConnectionConfig(
              connection_type=ConnectionType.ROUTING, local_ip=local_ip
          )
  
      def connection_config_tunneling(self) -> ConnectionConfig:
          """Return the connection_config if tunneling is configured."""
          gateway_ip = self.config[DOMAIN][CONF_KNX_TUNNELING][CONF_HOST]
          gateway_port = self.config[DOMAIN][CONF_KNX_TUNNELING][CONF_PORT]
          local_ip = self.config[DOMAIN][CONF_KNX_TUNNELING].get(
              ConnectionSchema.CONF_KNX_LOCAL_IP
          )
          route_back = self.config[DOMAIN][CONF_KNX_TUNNELING][
              ConnectionSchema.CONF_KNX_ROUTE_BACK
          ]
          return ConnectionConfig(
              connection_type=ConnectionType.TUNNELING,
              gateway_ip=gateway_ip,
              gateway_port=gateway_port,
              local_ip=local_ip,
              route_back=route_back,
              auto_reconnect=True,
          )
  
      async def telegram_received_cb(self, telegram: Telegram) -> None:
          """Call invoked after a KNX telegram was received."""
          data = None
          # Not all telegrams have serializable data.
          if (
              isinstance(telegram.payload, (GroupValueWrite, GroupValueResponse))
              and telegram.payload.value is not None
          ):
              data = telegram.payload.value.value
  
          self.hass.bus.async_fire(
              "knx_event",
              {
                  "data": data,
                  "destination": str(telegram.destination_address),
                  "direction": telegram.direction.value,
                  "source": str(telegram.source_address),
                  "telegramtype": telegram.payload.__class__.__name__,
              },
          )
  
      async def connection_state_changed_cb(self, state: XknxConnectionState) -> None:
          """Call invoked after a KNX connection state change was received."""
          self.connected = state == XknxConnectionState.CONNECTED
          if tasks := [device.after_update() for device in self.xknx.devices]:
              await asyncio.gather(*tasks)
  
      def register_callback(self) -> TelegramQueue.Callback:
          """Register callback within XKNX TelegramQueue."""
          address_filters = list(
              map(AddressFilter, self.config[DOMAIN][CONF_KNX_EVENT_FILTER])
          )
          return self.xknx.telegram_queue.register_telegram_received_cb(
              self.telegram_received_cb,
              address_filters=address_filters,
              group_addresses=[],
              match_for_outgoing=True,
          )
  
      async def service_event_register_modify(self, call: ServiceCall) -> None:
          """Service for adding or removing a GroupAddress to the knx_event filter."""
          attr_address = call.data[KNX_ADDRESS]
          group_addresses = map(parse_device_group_address, attr_address)
  
          if call.data.get(SERVICE_KNX_ATTR_REMOVE):
              for group_address in group_addresses:
                  try:
                      self._knx_event_callback.group_addresses.remove(group_address)
                  except ValueError:
                      _LOGGER.warning(
                          "Service event_register could not remove event for '%s'",
                          str(group_address),
                      )
              return
  
          for group_address in group_addresses:
              if group_address in self._knx_event_callback.group_addresses:
                  continue
              self._knx_event_callback.group_addresses.append(group_address)
              _LOGGER.debug(
                  "Service event_register registered event for '%s'",
                  str(group_address),
              )
  
      async def service_exposure_register_modify(self, call: ServiceCall) -> None:
          """Service for adding or removing an exposure to KNX bus."""
          group_address = call.data[KNX_ADDRESS]
  
          if call.data.get(SERVICE_KNX_ATTR_REMOVE):
              try:
                  removed_exposure = self.service_exposures.pop(group_address)
              except KeyError as err:
                  raise HomeAssistantError(
                      f"Could not find exposure for '{group_address}' to remove."
                  ) from err
              else:
                  removed_exposure.shutdown()
              return
  
          if group_address in self.service_exposures:
              replaced_exposure = self.service_exposures.pop(group_address)
              _LOGGER.warning(
                  "Service exposure_register replacing already registered exposure for '%s' - %s",
                  group_address,
                  replaced_exposure.device.name,
              )
              replaced_exposure.shutdown()
          exposure = create_knx_exposure(self.hass, self.xknx, call.data)  # type: ignore[arg-type]
          self.service_exposures[group_address] = exposure
          _LOGGER.debug(
              "Service exposure_register registered exposure for '%s' - %s",
              group_address,
              exposure.device.name,
          )
  
      async def service_send_to_knx_bus(self, call: ServiceCall) -> None:
          """Service for sending an arbitrary KNX message to the KNX bus."""
          attr_address = call.data[KNX_ADDRESS]
          attr_payload = call.data[SERVICE_KNX_ATTR_PAYLOAD]
          attr_type = call.data.get(SERVICE_KNX_ATTR_TYPE)
  
          payload: DPTBinary | DPTArray
          if attr_type is not None:
              transcoder = DPTBase.parse_transcoder(attr_type)
              if transcoder is None:
                  raise ValueError(f"Invalid type for knx.send service: {attr_type}")
              payload = DPTArray(transcoder.to_knx(attr_payload))
          elif isinstance(attr_payload, int):
              payload = DPTBinary(attr_payload)
          else:
              payload = DPTArray(attr_payload)
  
          for address in attr_address:
              telegram = Telegram(
                  destination_address=parse_device_group_address(address),
                  payload=GroupValueWrite(payload),
              )
              await self.xknx.telegrams.put(telegram)
  
      async def service_read_to_knx_bus(self, call: ServiceCall) -> None:
          """Service for sending a GroupValueRead telegram to the KNX bus."""
          for address in call.data[KNX_ADDRESS]:
              telegram = Telegram(
                  destination_address=parse_device_group_address(address),
                  payload=GroupValueRead(),
              )
              await self.xknx.telegrams.put(telegram)
  