"""Handle Konnected messages."""
import logging

from homeassistant.helpers.dispatcher import async_dispatcher_send
from homeassistant.util import decorator
from homeassistant.const import (
    ATTR_ENTITY_ID, ATTR_STATE,
    DEVICE_CLASS_TEMPERATURE, DEVICE_CLASS_HUMIDITY)

from .const import (CONF_INVERSE, SIGNAL_SENSOR_UPDATE, SIGNAL_DS18B20_NEW)

_LOGGER = logging.getLogger(__name__)
HANDLERS = decorator.Registry()


@HANDLERS.register('state')
async def async_handle_state_update(hass, context, msg):
    """Handle a binary sensor state update."""
    _LOGGER.debug("[state handler] context: %s  msg: %s", context, msg)
    entity_id = context.get(ATTR_ENTITY_ID)
    state = bool(int(msg.get(ATTR_STATE)))
    if context.get(CONF_INVERSE):
        state = not state

    async_dispatcher_send(
        hass, SIGNAL_SENSOR_UPDATE.format(entity_id), state)


@HANDLERS.register('temp')
async def async_handle_temp_update(hass, context, msg):
    """Handle a temperature sensor state update."""
    _LOGGER.debug("[temp handler] context: %s  msg: %s", context, msg)
    entity_id, temp = context.get(DEVICE_CLASS_TEMPERATURE), msg.get('temp')
    if entity_id:
        async_dispatcher_send(
            hass, SIGNAL_SENSOR_UPDATE.format(entity_id), temp)


@HANDLERS.register('humi')
async def async_handle_humi_update(hass, context, msg):
    """Handle a humidity sensor state update."""
    _LOGGER.debug("[humi handler] context: %s  msg: %s", context, msg)
    entity_id, humi = context.get(DEVICE_CLASS_HUMIDITY), msg.get('humi')
    if entity_id:
        async_dispatcher_send(
            hass, SIGNAL_SENSOR_UPDATE.format(entity_id), humi)


@HANDLERS.register('addr')
async def async_handle_addr_update(hass, context, msg):
    """Handle an addressable sensor update."""
    _LOGGER.debug("[addr handler] context: %s  msg: %s", context, msg)
    addr, temp = msg.get('addr'), msg.get('temp')
    entity_id = context.get(addr)
    if entity_id:
        async_dispatcher_send(
            hass, SIGNAL_SENSOR_UPDATE.format(entity_id), temp)
    else:
        msg['device_id'] = context.get('device_id')
        msg['temperature'] = temp
        msg['addr'] = addr
        async_dispatcher_send(hass, SIGNAL_DS18B20_NEW, msg)