"""
Support for RFXtrx switches.

For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/switch.rfxtrx/
"""
import logging

import homeassistant.components.rfxtrx as rfxtrx
from homeassistant.components.switch import SwitchDevice

DEPENDENCIES = ['rfxtrx']

_LOGGER = logging.getLogger(__name__)

PLATFORM_SCHEMA = rfxtrx.DEFAULT_SCHEMA


def setup_platform(hass, config, add_devices_callback, discovery_info=None):
    """Setup the RFXtrx platform."""
    import RFXtrx as rfxtrxmod

    # Add switch from config file
    switches = rfxtrx.get_devices_from_config(config, RfxtrxSwitch)
    add_devices_callback(switches)

    def switch_update(event):
        """Callback for sensor updates from the RFXtrx gateway."""
        if not isinstance(event.device, rfxtrxmod.LightingDevice) or \
                event.device.known_to_be_dimmable or \
                event.device.known_to_be_rollershutter:
            return

        new_device = rfxtrx.get_new_device(event, config, RfxtrxSwitch)
        if new_device:
            add_devices_callback([new_device])

        rfxtrx.apply_received_command(event)

    # Subscribe to main rfxtrx events
    if switch_update not in rfxtrx.RECEIVED_EVT_SUBSCRIBERS:
        rfxtrx.RECEIVED_EVT_SUBSCRIBERS.append(switch_update)


class RfxtrxSwitch(rfxtrx.RfxtrxDevice, SwitchDevice):
    """Representation of a RFXtrx switch."""

    def turn_on(self, **kwargs):
        """Turn the device on."""
        self._send_command("turn_on")