core/homeassistant/components/sensor/tibber.py

100 lines
2.9 KiB
Python

"""
Support for Tibber.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/sensor.tibber/
"""
import asyncio
import logging
from datetime import timedelta
import voluptuous as vol
import homeassistant.helpers.config_validation as cv
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import CONF_ACCESS_TOKEN
from homeassistant.helpers.aiohttp_client import async_get_clientsession
from homeassistant.helpers.entity import Entity
from homeassistant.util import dt as dt_util
REQUIREMENTS = ['pyTibber==0.2.1']
_LOGGER = logging.getLogger(__name__)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_ACCESS_TOKEN): cv.string
})
ICON = 'mdi:currency-usd'
SCAN_INTERVAL = timedelta(minutes=1)
@asyncio.coroutine
def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
"""Set up the Tibber sensor."""
import Tibber
tibber = Tibber.Tibber(config[CONF_ACCESS_TOKEN],
websession=async_get_clientsession(hass))
yield from tibber.update_info()
dev = []
for home in tibber.get_homes():
yield from home.update_info()
dev.append(TibberSensor(home))
async_add_devices(dev)
class TibberSensor(Entity):
"""Representation of an Tibber sensor."""
def __init__(self, tibber_home):
"""Initialize the sensor."""
self._tibber_home = tibber_home
self._last_updated = None
self._state = None
self._device_state_attributes = None
self._unit_of_measurement = None
self._name = 'Electricity price {}'.format(self._tibber_home.address1)
@asyncio.coroutine
def async_update(self):
"""Get the latest data and updates the states."""
if self._tibber_home.current_price_total and self._last_updated and \
dt_util.as_utc(dt_util.parse_datetime(self._last_updated)).hour\
== dt_util.utcnow().hour:
return
yield from self._tibber_home.update_current_price_info()
self._state = self._tibber_home.current_price_total
self._last_updated = self._tibber_home.current_price_info.\
get('startsAt')
self._device_state_attributes = self._tibber_home.current_price_info
self._unit_of_measurement = self._tibber_home.price_unit
@property
def device_state_attributes(self):
"""Return the state attributes."""
return self._device_state_attributes
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def state(self):
"""Return the state of the device."""
return self._state
@property
def icon(self):
"""Return the icon to use in the frontend."""
return ICON
@property
def unit_of_measurement(self):
"""Return the unit of measurement of this entity."""
return self._unit_of_measurement