"""
Support for Wink binary sensors.

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

from homeassistant.components.binary_sensor import BinarySensorDevice
from homeassistant.components.wink import WinkDevice, DOMAIN
from homeassistant.helpers.entity import Entity

_LOGGER = logging.getLogger(__name__)

DEPENDENCIES = ['wink']

# These are the available sensors mapped to binary_sensor class
SENSOR_TYPES = {
    'opened': 'opening',
    'brightness': 'light',
    'vibration': 'vibration',
    'loudness': 'sound',
    'noise': 'sound',
    'capturing_audio': 'sound',
    'liquid_detected': 'moisture',
    'motion': 'motion',
    'presence': 'occupancy',
    'co_detected': 'gas',
    'smoke_detected': 'smoke',
    'capturing_video': None
}


def setup_platform(hass, config, add_devices, discovery_info=None):
    """Set up the Wink binary sensor platform."""
    import pywink

    for sensor in pywink.get_sensors():
        _id = sensor.object_id() + sensor.name()
        if _id not in hass.data[DOMAIN]['unique_ids']:
            if sensor.capability() in SENSOR_TYPES:
                add_devices([WinkBinarySensorDevice(sensor, hass)])

    for key in pywink.get_keys():
        _id = key.object_id() + key.name()
        if _id not in hass.data[DOMAIN]['unique_ids']:
            add_devices([WinkBinarySensorDevice(key, hass)])

    for sensor in pywink.get_smoke_and_co_detectors():
        _id = sensor.object_id() + sensor.name()
        if _id not in hass.data[DOMAIN]['unique_ids']:
            add_devices([WinkSmokeDetector(sensor, hass)])

    for hub in pywink.get_hubs():
        _id = hub.object_id() + hub.name()
        if _id not in hass.data[DOMAIN]['unique_ids']:
            add_devices([WinkHub(hub, hass)])

    for remote in pywink.get_remotes():
        _id = remote.object_id() + remote.name()
        if _id not in hass.data[DOMAIN]['unique_ids']:
            add_devices([WinkRemote(remote, hass)])

    for button in pywink.get_buttons():
        _id = button.object_id() + button.name()
        if _id not in hass.data[DOMAIN]['unique_ids']:
            add_devices([WinkButton(button, hass)])

    for gang in pywink.get_gangs():
        _id = gang.object_id() + gang.name()
        if _id not in hass.data[DOMAIN]['unique_ids']:
            add_devices([WinkGang(gang, hass)])

    for door_bell_sensor in pywink.get_door_bells():
        _id = door_bell_sensor.object_id() + door_bell_sensor.name()
        if _id not in hass.data[DOMAIN]['unique_ids']:
            add_devices([WinkBinarySensorDevice(door_bell_sensor, hass)])

    for camera_sensor in pywink.get_cameras():
        _id = camera_sensor.object_id() + camera_sensor.name()
        if _id not in hass.data[DOMAIN]['unique_ids']:
            try:
                if camera_sensor.capability() in SENSOR_TYPES:
                    add_devices([WinkBinarySensorDevice(camera_sensor, hass)])
            except AttributeError:
                _LOGGER.info("Device isn't a sensor, skipping")


class WinkBinarySensorDevice(WinkDevice, BinarySensorDevice, Entity):
    """Representation of a Wink binary sensor."""

    def __init__(self, wink, hass):
        """Initialize the Wink binary sensor."""
        super().__init__(wink, hass)
        if hasattr(self.wink, 'unit'):
            self._unit_of_measurement = self.wink.unit()
        else:
            self._unit_of_measurement = None
        if hasattr(self.wink, 'capability'):
            self.capability = self.wink.capability()
        else:
            self.capability = None

    @asyncio.coroutine
    def async_added_to_hass(self):
        """Callback when entity is added to hass."""
        self.hass.data[DOMAIN]['entities']['binary_sensor'].append(self)

    @property
    def is_on(self):
        """Return true if the binary sensor is on."""
        return self.wink.state()

    @property
    def device_class(self):
        """Return the class of this sensor, from DEVICE_CLASSES."""
        return SENSOR_TYPES.get(self.capability)


class WinkSmokeDetector(WinkBinarySensorDevice):
    """Representation of a Wink Smoke detector."""

    @property
    def device_state_attributes(self):
        """Return the state attributes."""
        return {
            'test_activated': self.wink.test_activated()
        }


class WinkHub(WinkBinarySensorDevice):
    """Representation of a Wink Hub."""

    @property
    def device_state_attributes(self):
        """Return the state attributes."""
        return {
            'update needed': self.wink.update_needed(),
            'firmware version': self.wink.firmware_version()
        }


class WinkRemote(WinkBinarySensorDevice):
    """Representation of a Wink Lutron Connected bulb remote."""

    @property
    def device_state_attributes(self):
        """Return the state attributes."""
        return {
            'button_on_pressed': self.wink.button_on_pressed(),
            'button_off_pressed': self.wink.button_off_pressed(),
            'button_up_pressed': self.wink.button_up_pressed(),
            'button_down_pressed': self.wink.button_down_pressed()
        }

    @property
    def device_class(self):
        """Return the class of this sensor, from DEVICE_CLASSES."""
        return None


class WinkButton(WinkBinarySensorDevice):
    """Representation of a Wink Relay button."""

    @property
    def device_state_attributes(self):
        """Return the state attributes."""
        return {
            'pressed': self.wink.pressed(),
            'long_pressed': self.wink.long_pressed()
        }


class WinkGang(WinkBinarySensorDevice):
    """Representation of a Wink Relay gang."""

    @property
    def is_on(self):
        """Return true if the gang is connected."""
        return self.wink.state()
