"""
Join platform for notify component.

For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/notify.join/
"""
import logging
import voluptuous as vol
from homeassistant.components.notify import (
    ATTR_DATA, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
    BaseNotificationService)
from homeassistant.const import CONF_API_KEY
import homeassistant.helpers.config_validation as cv

REQUIREMENTS = ['python-join-api==0.0.2']

_LOGGER = logging.getLogger(__name__)

CONF_DEVICE_ID = 'device_id'
CONF_DEVICE_IDS = 'device_ids'
CONF_DEVICE_NAMES = 'device_names'

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
    vol.Required(CONF_API_KEY): cv.string,
    vol.Optional(CONF_DEVICE_ID): cv.string,
    vol.Optional(CONF_DEVICE_IDS): cv.string,
    vol.Optional(CONF_DEVICE_NAMES): cv.string,
})


def get_service(hass, config, discovery_info=None):
    """Get the Join notification service."""
    api_key = config.get(CONF_API_KEY)
    device_id = config.get(CONF_DEVICE_ID)
    device_ids = config.get(CONF_DEVICE_IDS)
    device_names = config.get(CONF_DEVICE_NAMES)
    if api_key:
        from pyjoin import get_devices
        if not get_devices(api_key):
            _LOGGER.error("Error connecting to Join. Check the API key")
            return False
    if device_id is None and device_ids is None and device_names is None:
        _LOGGER.error("No device was provided. Please specify device_id"
                      ", device_ids, or device_names")
        return False
    return JoinNotificationService(api_key, device_id,
                                   device_ids, device_names)


class JoinNotificationService(BaseNotificationService):
    """Implement the notification service for Join."""

    def __init__(self, api_key, device_id, device_ids, device_names):
        """Initialize the service."""
        self._api_key = api_key
        self._device_id = device_id
        self._device_ids = device_ids
        self._device_names = device_names

    def send_message(self, message="", **kwargs):
        """Send a message to a user."""
        from pyjoin import send_notification
        title = kwargs.get(ATTR_TITLE, ATTR_TITLE_DEFAULT)
        data = kwargs.get(ATTR_DATA) or {}
        send_notification(
            device_id=self._device_id, device_ids=self._device_ids,
            device_names=self._device_names, text=message, title=title,
            icon=data.get('icon'), smallicon=data.get('smallicon'),
            vibration=data.get('vibration'), api_key=self._api_key)