core/homeassistant/components/meteo_france/sensor.py

74 lines
2.3 KiB
Python

"""Support for Meteo-France raining forecast sensor."""
import logging
from homeassistant.const import ATTR_ATTRIBUTION, CONF_MONITORED_CONDITIONS
from homeassistant.helpers.entity import Entity
from . import ATTRIBUTION, CONF_CITY, DATA_METEO_FRANCE, SENSOR_TYPES
_LOGGER = logging.getLogger(__name__)
STATE_ATTR_FORECAST = '1h rain forecast'
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the Meteo-France sensor."""
if discovery_info is None:
return
city = discovery_info[CONF_CITY]
monitored_conditions = discovery_info[CONF_MONITORED_CONDITIONS]
client = hass.data[DATA_METEO_FRANCE][city]
add_entities([MeteoFranceSensor(variable, client)
for variable in monitored_conditions], True)
class MeteoFranceSensor(Entity):
"""Representation of a Meteo-France sensor."""
def __init__(self, condition, client):
"""Initialize the Meteo-France sensor."""
self._condition = condition
self._client = client
self._state = None
self._data = {}
@property
def name(self):
"""Return the name of the sensor."""
return "{} {}".format(
self._data['name'], SENSOR_TYPES[self._condition][0])
@property
def state(self):
"""Return the state of the sensor."""
return self._state
@property
def device_state_attributes(self):
"""Return the state attributes of the sensor."""
if self._condition == 'next_rain' and 'rain_forecast' in self._data:
return {
**{STATE_ATTR_FORECAST: self._data['rain_forecast']},
** self._data['next_rain_intervals'],
**{ATTR_ATTRIBUTION: ATTRIBUTION}
}
return {ATTR_ATTRIBUTION: ATTRIBUTION}
@property
def unit_of_measurement(self):
"""Return the unit of measurement."""
return SENSOR_TYPES[self._condition][1]
def update(self):
"""Fetch new state data for the sensor."""
try:
self._client.update()
self._data = self._client.get_data()
self._state = self._data[self._condition]
except KeyError:
_LOGGER.error("No condition %s for location %s",
self._condition, self._data['name'])
self._state = None