text: """Support for Rflink lights."""
  import logging
  
  import voluptuous as vol
  
  from homeassistant.components.light import (
      ATTR_BRIGHTNESS,
      PLATFORM_SCHEMA,
      SUPPORT_BRIGHTNESS,
      Light,
  )
  from homeassistant.const import CONF_NAME, CONF_TYPE
  import homeassistant.helpers.config_validation as cv
  
  from . import (
      CONF_ALIASES,
      CONF_ALIASSES,
      CONF_AUTOMATIC_ADD,
      CONF_DEVICE_DEFAULTS,
      CONF_DEVICES,
      CONF_FIRE_EVENT,
      CONF_GROUP,
      CONF_GROUP_ALIASES,
      CONF_GROUP_ALIASSES,
      CONF_NOGROUP_ALIASES,
      CONF_NOGROUP_ALIASSES,
      CONF_SIGNAL_REPETITIONS,
      DATA_DEVICE_REGISTER,
      DEVICE_DEFAULTS_SCHEMA,
      EVENT_KEY_COMMAND,
      EVENT_KEY_ID,
      SwitchableRflinkDevice,
      remove_deprecated,
  )
  
  _LOGGER = logging.getLogger(__name__)
  
  TYPE_DIMMABLE = "dimmable"
  TYPE_SWITCHABLE = "switchable"
  TYPE_HYBRID = "hybrid"
  TYPE_TOGGLE = "toggle"
  
  PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
      {
          vol.Optional(
              CONF_DEVICE_DEFAULTS, default=DEVICE_DEFAULTS_SCHEMA({})
          ): DEVICE_DEFAULTS_SCHEMA,
          vol.Optional(CONF_AUTOMATIC_ADD, default=True): cv.boolean,
          vol.Optional(CONF_DEVICES, default={}): {
              cv.string: vol.Schema(
                  {
                      vol.Optional(CONF_NAME): cv.string,
                      vol.Optional(CONF_TYPE): vol.Any(
                          TYPE_DIMMABLE, TYPE_SWITCHABLE, TYPE_HYBRID, TYPE_TOGGLE
                      ),
                      vol.Optional(CONF_ALIASES, default=[]): vol.All(
                          cv.ensure_list, [cv.string]
                      ),
                      vol.Optional(CONF_GROUP_ALIASES, default=[]): vol.All(
                          cv.ensure_list, [cv.string]
                      ),
                      vol.Optional(CONF_NOGROUP_ALIASES, default=[]): vol.All(
                          cv.ensure_list, [cv.string]
                      ),
                      vol.Optional(CONF_FIRE_EVENT): cv.boolean,
                      vol.Optional(CONF_SIGNAL_REPETITIONS): vol.Coerce(int),
                      vol.Optional(CONF_GROUP, default=True): cv.boolean,
                      # deprecated config options
                      vol.Optional(CONF_ALIASSES): vol.All(cv.ensure_list, [cv.string]),
                      vol.Optional(CONF_GROUP_ALIASSES): vol.All(
                          cv.ensure_list, [cv.string]
                      ),
                      vol.Optional(CONF_NOGROUP_ALIASSES): vol.All(
                          cv.ensure_list, [cv.string]
                      ),
                  }
              )
          },
      },
      extra=vol.ALLOW_EXTRA,
  )
  
  
  def entity_type_for_device_id(device_id):
      """Return entity class for protocol of a given device_id.
  
      Async friendly.
      """
      entity_type_mapping = {
          # KlikAanKlikUit support both dimmers and on/off switches on the same
          # protocol
          "newkaku": TYPE_HYBRID
      }
      protocol = device_id.split("_")[0]
      return entity_type_mapping.get(protocol, None)
  
  
  def entity_class_for_type(entity_type):
      """Translate entity type to entity class.
  
      Async friendly.
      """
      entity_device_mapping = {
          # sends only 'dim' commands not compatible with on/off switches
          TYPE_DIMMABLE: DimmableRflinkLight,
          # sends only 'on/off' commands not advices with dimmers and signal
          # repetition
          TYPE_SWITCHABLE: RflinkLight,
          # sends 'dim' and 'on' command to support both dimmers and on/off
          # switches. Not compatible with signal repetition.
          TYPE_HYBRID: HybridRflinkLight,
          # sends only 'on' commands for switches which turn on and off
          # using the same 'on' command for both.
          TYPE_TOGGLE: ToggleRflinkLight,
      }
  
      return entity_device_mapping.get(entity_type, RflinkLight)
  
  
  def devices_from_config(domain_config):
      """Parse configuration and add Rflink light devices."""
      devices = []
      for device_id, config in domain_config[CONF_DEVICES].items():
          # Determine which kind of entity to create
          if CONF_TYPE in config:
              # Remove type from config to not pass it as and argument to entity
              # instantiation
              entity_type = config.pop(CONF_TYPE)
          else:
              entity_type = entity_type_for_device_id(device_id)
          entity_class = entity_class_for_type(entity_type)
  
          device_config = dict(domain_config[CONF_DEVICE_DEFAULTS], **config)
          remove_deprecated(device_config)
  
          is_hybrid = entity_class is HybridRflinkLight
  
          # Make user aware this can cause problems
          repetitions_enabled = device_config[CONF_SIGNAL_REPETITIONS] != 1
          if is_hybrid and repetitions_enabled:
              _LOGGER.warning(
                  "Hybrid type for %s not compatible with signal "
                  "repetitions. Please set 'dimmable' or 'switchable' "
                  "type explicitly in configuration",
                  device_id,
              )
  
          device = entity_class(device_id, **device_config)
          devices.append(device)
  
      return devices
  
  
  async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
      """Set up the Rflink light platform."""
      async_add_entities(devices_from_config(config))
  
      async def add_new_device(event):
          """Check if device is known, otherwise add to list of known devices."""
          device_id = event[EVENT_KEY_ID]
  
          entity_type = entity_type_for_device_id(event[EVENT_KEY_ID])
          entity_class = entity_class_for_type(entity_type)
  
          device_config = config[CONF_DEVICE_DEFAULTS]
          device = entity_class(device_id, initial_event=event, **device_config)
          async_add_entities([device])
  
      if config[CONF_AUTOMATIC_ADD]:
          hass.data[DATA_DEVICE_REGISTER][EVENT_KEY_COMMAND] = add_new_device
  
  
  # pylint: disable=too-many-ancestors
  class RflinkLight(SwitchableRflinkDevice, Light):
      """Representation of a Rflink light."""
  
      pass
  
  
  # pylint: disable=too-many-ancestors
  class DimmableRflinkLight(SwitchableRflinkDevice, Light):
      """Rflink light device that support dimming."""
  
      _brightness = 255
  
      async def async_added_to_hass(self):
          """Restore RFLink light brightness attribute."""
          await super().async_added_to_hass()
  
          old_state = await self.async_get_last_state()
          if (
              old_state is not None
              and old_state.attributes.get(ATTR_BRIGHTNESS) is not None
          ):
              # restore also brightness in dimmables devices
              self._brightness = int(old_state.attributes[ATTR_BRIGHTNESS])
  
      async def async_turn_on(self, **kwargs):
          """Turn the device on."""
          if ATTR_BRIGHTNESS in kwargs:
              # rflink only support 16 brightness levels
              self._brightness = int(kwargs[ATTR_BRIGHTNESS] / 17) * 17
  
          # Turn on light at the requested dim level
          await self._async_handle_command("dim", self._brightness)
  
      @property
      def brightness(self):
          """Return the brightness of this light between 0..255."""
          return self._brightness
  
      @property
      def device_state_attributes(self):
          """Return the device state attributes."""
          attr = {}
          if self._brightness is not None:
              attr[ATTR_BRIGHTNESS] = self._brightness
          return attr
  
      @property
      def supported_features(self):
          """Flag supported features."""
          return SUPPORT_BRIGHTNESS
  
  
  # pylint: disable=too-many-ancestors
  class HybridRflinkLight(SwitchableRflinkDevice, Light):
      """Rflink light device that sends out both dim and on/off commands.
  
      Used for protocols which support lights that are not exclusively on/off
      style. For example KlikAanKlikUit supports both on/off and dimmable light
      switches using the same protocol. This type allows unconfigured
      KlikAanKlikUit devices to support dimming without breaking support for
      on/off switches.
  
      This type is not compatible with signal repetitions as the 'dim' and 'on'
      command are send sequential and multiple 'on' commands to a dimmable
      device can cause the dimmer to switch into a pulsating brightness mode.
      Which results in a nice house disco :)
      """
  
      _brightness = 255
  
      async def async_added_to_hass(self):
          """Restore RFLink light brightness attribute."""
          await super().async_added_to_hass()
  
          old_state = await self.async_get_last_state()
          if (
              old_state is not None
              and old_state.attributes.get(ATTR_BRIGHTNESS) is not None
          ):
              # restore also brightness in dimmables devices
              self._brightness = int(old_state.attributes[ATTR_BRIGHTNESS])
  
      async def async_turn_on(self, **kwargs):
          """Turn the device on and set dim level."""
          if ATTR_BRIGHTNESS in kwargs:
              # rflink only support 16 brightness levels
              self._brightness = int(kwargs[ATTR_BRIGHTNESS] / 17) * 17
  
          # if receiver supports dimming this will turn on the light
          # at the requested dim level
          await self._async_handle_command("dim", self._brightness)
  
          # if the receiving device does not support dimlevel this
          # will ensure it is turned on when full brightness is set
          if self._brightness == 255:
              await self._async_handle_command("turn_on")
  
      @property
      def brightness(self):
          """Return the brightness of this light between 0..255."""
          return self._brightness
  
      @property
      def device_state_attributes(self):
          """Return the device state attributes."""
          attr = {}
          if self._brightness is not None:
              attr[ATTR_BRIGHTNESS] = self._brightness
          return attr
  
      @property
      def supported_features(self):
          """Flag supported features."""
          return SUPPORT_BRIGHTNESS
  
  
  # pylint: disable=too-many-ancestors
  class ToggleRflinkLight(SwitchableRflinkDevice, Light):
      """Rflink light device which sends out only 'on' commands.
  
      Some switches like for example Livolo light switches use the
      same 'on' command to switch on and switch off the lights.
      If the light is on and 'on' gets sent, the light will turn off
      and if the light is off and 'on' gets sent, the light will turn on.
      """
  
      @property
      def entity_id(self):
          """Return entity id."""
          return "light.{}".format(self.name)
  
      def _handle_event(self, event):
          """Adjust state if Rflink picks up a remote command for this device."""
          self.cancel_queued_send_commands()
  
          command = event["command"]
          if command == "on":
              # if the state is unknown or false, it gets set as true
              # if the state is true, it gets set as false
              self._state = self._state in [None, False]
  
      async def async_turn_on(self, **kwargs):
          """Turn the device on."""
          await self._async_handle_command("toggle")
  
      async def async_turn_off(self, **kwargs):
          """Turn the device off."""
          await self._async_handle_command("toggle")
  