"""
Support for Insteon Hub.

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

from homeassistant.const import CONF_API_KEY, CONF_PASSWORD, CONF_USERNAME
from homeassistant.helpers import validate_config, discovery

DOMAIN = "insteon_hub"
REQUIREMENTS = ['insteon_hub==0.4.5']
INSTEON = None
_LOGGER = logging.getLogger(__name__)


def setup(hass, config):
    """Setup Insteon Hub component.

    This will automatically import associated lights.
    """
    if not validate_config(
            config,
            {DOMAIN: [CONF_USERNAME, CONF_PASSWORD, CONF_API_KEY]},
            _LOGGER):
        return False

    import insteon

    username = config[DOMAIN][CONF_USERNAME]
    password = config[DOMAIN][CONF_PASSWORD]
    api_key = config[DOMAIN][CONF_API_KEY]

    global INSTEON
    INSTEON = insteon.Insteon(username, password, api_key)

    if INSTEON is None:
        _LOGGER.error("Could not connect to Insteon service.")
        return

    discovery.load_platform(hass, 'light', DOMAIN, {}, config)

    return True