"""Parent component for Dyson Pure Cool Link devices.

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

import logging

import voluptuous as vol

import homeassistant.helpers.config_validation as cv
from homeassistant.helpers import discovery
from homeassistant.const import CONF_USERNAME, CONF_PASSWORD, CONF_TIMEOUT, \
    CONF_DEVICES

REQUIREMENTS = ['libpurecoollink==0.4.2']

_LOGGER = logging.getLogger(__name__)

CONF_LANGUAGE = "language"
CONF_RETRY = "retry"

DEFAULT_TIMEOUT = 5
DEFAULT_RETRY = 10

DOMAIN = "dyson"

CONFIG_SCHEMA = vol.Schema({
    DOMAIN: vol.Schema({
        vol.Required(CONF_USERNAME): cv.string,
        vol.Required(CONF_PASSWORD): cv.string,
        vol.Required(CONF_LANGUAGE): cv.string,
        vol.Optional(CONF_TIMEOUT, default=DEFAULT_TIMEOUT): cv.positive_int,
        vol.Optional(CONF_RETRY, default=DEFAULT_RETRY): cv.positive_int,
        vol.Optional(CONF_DEVICES, default=[]):
            vol.All(cv.ensure_list, [dict]),
    })
}, extra=vol.ALLOW_EXTRA)

DYSON_DEVICES = "dyson_devices"


def setup(hass, config):
    """Set up the Dyson parent component."""
    _LOGGER.info("Creating new Dyson component")

    if DYSON_DEVICES not in hass.data:
        hass.data[DYSON_DEVICES] = []

    from libpurecoollink.dyson import DysonAccount
    dyson_account = DysonAccount(config[DOMAIN].get(CONF_USERNAME),
                                 config[DOMAIN].get(CONF_PASSWORD),
                                 config[DOMAIN].get(CONF_LANGUAGE))

    logged = dyson_account.login()

    timeout = config[DOMAIN].get(CONF_TIMEOUT)
    retry = config[DOMAIN].get(CONF_RETRY)

    if not logged:
        _LOGGER.error("Not connected to Dyson account. Unable to add devices")
        return False

    _LOGGER.info("Connected to Dyson account")
    dyson_devices = dyson_account.devices()
    if CONF_DEVICES in config[DOMAIN] and config[DOMAIN].get(CONF_DEVICES):
        configured_devices = config[DOMAIN].get(CONF_DEVICES)
        for device in configured_devices:
            dyson_device = next((d for d in dyson_devices if
                                 d.serial == device["device_id"]), None)
            if dyson_device:
                try:
                    connected = dyson_device.connect(device["device_ip"])
                    if connected:
                        _LOGGER.info("Connected to device %s", dyson_device)
                        hass.data[DYSON_DEVICES].append(dyson_device)
                    else:
                        _LOGGER.warning("Unable to connect to device %s",
                                        dyson_device)
                except OSError as ose:
                    _LOGGER.error("Unable to connect to device %s: %s",
                                  str(dyson_device.network_device), str(ose))
            else:
                _LOGGER.warning(
                    "Unable to find device %s in Dyson account",
                    device["device_id"])
    else:
        # Not yet reliable
        for device in dyson_devices:
            _LOGGER.info("Trying to connect to device %s with timeout=%i "
                         "and retry=%i", device, timeout, retry)
            connected = device.auto_connect(timeout, retry)
            if connected:
                _LOGGER.info("Connected to device %s", device)
                hass.data[DYSON_DEVICES].append(device)
            else:
                _LOGGER.warning("Unable to connect to device %s", device)

    # Start fan/sensors components
    if hass.data[DYSON_DEVICES]:
        _LOGGER.debug("Starting sensor/fan components")
        discovery.load_platform(hass, "sensor", DOMAIN, {}, config)
        discovery.load_platform(hass, "fan", DOMAIN, {}, config)
        discovery.load_platform(hass, "vacuum", DOMAIN, {}, config)

    return True
