core/homeassistant/components/sensor/tibber.py

140 lines
4.7 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 aiohttp
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.exceptions import PlatformNotReady
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==0.4.0']
_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)
async def async_setup_platform(hass, config, async_add_devices,
discovery_info=None):
"""Set up the Tibber sensor."""
import tibber
tibber_connection = tibber.Tibber(config[CONF_ACCESS_TOKEN],
websession=async_get_clientsession(hass))
try:
await tibber_connection.update_info()
dev = []
for home in tibber_connection.get_homes():
await home.update_info()
dev.append(TibberSensor(home))
except (asyncio.TimeoutError, aiohttp.ClientError):
raise PlatformNotReady()
async_add_devices(dev, True)
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 = {}
self._unit_of_measurement = self._tibber_home.price_unit
self._name = 'Electricity price {}'.format(tibber_home.info['viewer']
['home']['appNickname'])
async def async_update(self):
"""Get the latest data and updates the states."""
now = dt_util.utcnow()
if self._tibber_home.current_price_total and self._last_updated and \
dt_util.as_utc(dt_util.parse_datetime(self._last_updated)).hour\
== now.hour:
return
def _find_current_price():
state = None
max_price = None
min_price = None
for key, price_total in self._tibber_home.price_total.items():
price_time = dt_util.as_utc(dt_util.parse_datetime(key))
price_total = round(price_total, 3)
time_diff = (now - price_time).total_seconds()/60
if time_diff >= 0 and time_diff < 60:
state = price_total
self._last_updated = key
if now.date() == price_time.date():
if max_price is None or price_total > max_price:
max_price = price_total
if min_price is None or price_total < min_price:
min_price = price_total
self._state = state
self._device_state_attributes['max_price'] = max_price
self._device_state_attributes['min_price'] = min_price
return state is not None
if _find_current_price():
return
_LOGGER.debug("No cached data found, so asking for new data")
await self._tibber_home.update_info()
await self._tibber_home.update_price_info()
data = self._tibber_home.info['viewer']['home']
self._device_state_attributes['app_nickname'] = data['appNickname']
self._device_state_attributes['grid_company'] =\
data['meteringPointData']['gridCompany']
self._device_state_attributes['estimated_annual_consumption'] =\
data['meteringPointData']['estimatedAnnualConsumption']
_find_current_price()
@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
@property
def unique_id(self):
"""Return a unique ID."""
home = self._tibber_home.info['viewer']['home']
return home['meteringPointData']['consumptionEan']