"""
Support for MyQ-Enabled Garage Doors.

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

import voluptuous as vol

from homeassistant.components.cover import CoverDevice
from homeassistant.const import (
    CONF_USERNAME, CONF_PASSWORD, CONF_TYPE, STATE_CLOSED)
import homeassistant.helpers.config_validation as cv

REQUIREMENTS = [
    'https://github.com/arraylabs/pymyq/archive/v0.0.6.zip'
    '#pymyq==0.0.6']

COVER_SCHEMA = vol.Schema({
    vol.Required(CONF_TYPE): cv.string,
    vol.Required(CONF_USERNAME): cv.string,
    vol.Required(CONF_PASSWORD): cv.string
})

DEFAULT_NAME = 'myq'


def setup_platform(hass, config, add_devices, discovery_info=None):
    """Setup the MyQ component."""
    from pymyq import MyQAPI as pymyq

    username = config.get(CONF_USERNAME)
    password = config.get(CONF_PASSWORD)
    brand = config.get(CONF_TYPE)

    logger = logging.getLogger(__name__)

    myq = pymyq(username, password, brand)

    if not myq.is_supported_brand():
        logger.error('MyQ Cover - Unsupported Type. See documentation')
        return

    if not myq.is_login_valid():
        logger.error('MyQ Cover - Username or Password is incorrect')
        return

    try:
        add_devices(MyQDevice(myq, door) for door in myq.get_garage_doors())
    except (TypeError, KeyError, NameError) as ex:
        logger.error("MyQ Cover - %s", ex)


class MyQDevice(CoverDevice):
    """Representation of a MyQ cover."""

    def __init__(self, myq, device):
        """Initialize with API object, device id."""
        self.myq = myq
        self.device_id = device['deviceid']
        self._name = device['name']
        self._status = STATE_CLOSED

    @property
    def should_poll(self):
        """Poll for state."""
        return True

    @property
    def name(self):
        """Return the name of the garage door if any."""
        return self._name if self._name else DEFAULT_NAME

    @property
    def is_closed(self):
        """Return True if cover is closed, else False."""
        return self._status == STATE_CLOSED

    def close_cover(self):
        """Issue close command to cover."""
        self.myq.close_device(self.device_id)

    def open_cover(self):
        """Issue open command to cover."""
        self.myq.open_device(self.device_id)

    def update(self):
        """Update status of cover."""
        self._status = self.myq.get_status(self.device_id)
