core/homeassistant/components/zamg/weather.py

110 lines
3.5 KiB
Python

"""Sensor for data from Austrian Zentralanstalt für Meteorologie."""
import logging
import voluptuous as vol
from homeassistant.components.weather import (
ATTR_WEATHER_HUMIDITY, ATTR_WEATHER_PRESSURE, ATTR_WEATHER_TEMPERATURE,
ATTR_WEATHER_WIND_BEARING, ATTR_WEATHER_WIND_SPEED, PLATFORM_SCHEMA,
WeatherEntity)
from homeassistant.const import (
CONF_LATITUDE, CONF_LONGITUDE, CONF_NAME, TEMP_CELSIUS)
from homeassistant.helpers import config_validation as cv
# Reuse data and API logic from the sensor implementation
from .sensor import (
ATTRIBUTION, CONF_STATION_ID, ZamgData, closest_station, zamg_stations)
_LOGGER = logging.getLogger(__name__)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Optional(CONF_NAME): cv.string,
vol.Optional(CONF_STATION_ID): cv.string,
vol.Inclusive(CONF_LATITUDE, 'coordinates',
'Latitude and longitude must exist together'): cv.latitude,
vol.Inclusive(CONF_LONGITUDE, 'coordinates',
'Latitude and longitude must exist together'): cv.longitude,
})
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the ZAMG weather platform."""
name = config.get(CONF_NAME)
latitude = config.get(CONF_LATITUDE, hass.config.latitude)
longitude = config.get(CONF_LONGITUDE, hass.config.longitude)
station_id = config.get(CONF_STATION_ID) or closest_station(
latitude, longitude, hass.config.config_dir)
if station_id not in zamg_stations(hass.config.config_dir):
_LOGGER.error("Configured ZAMG %s (%s) is not a known station",
CONF_STATION_ID, station_id)
return False
probe = ZamgData(station_id=station_id)
try:
probe.update()
except (ValueError, TypeError) as err:
_LOGGER.error("Received error from ZAMG: %s", err)
return False
add_entities([ZamgWeather(probe, name)], True)
class ZamgWeather(WeatherEntity):
"""Representation of a weather condition."""
def __init__(self, zamg_data, stationname=None):
"""Initialise the platform with a data instance and station name."""
self.zamg_data = zamg_data
self.stationname = stationname
@property
def name(self):
"""Return the name of the sensor."""
return self.stationname or 'ZAMG {}'.format(
self.zamg_data.data.get('Name') or '(unknown station)')
@property
def condition(self):
"""Return the current condition."""
return None
@property
def attribution(self):
"""Return the attribution."""
return ATTRIBUTION
@property
def temperature(self):
"""Return the platform temperature."""
return self.zamg_data.get_data(ATTR_WEATHER_TEMPERATURE)
@property
def temperature_unit(self):
"""Return the unit of measurement."""
return TEMP_CELSIUS
@property
def pressure(self):
"""Return the pressure."""
return self.zamg_data.get_data(ATTR_WEATHER_PRESSURE)
@property
def humidity(self):
"""Return the humidity."""
return self.zamg_data.get_data(ATTR_WEATHER_HUMIDITY)
@property
def wind_speed(self):
"""Return the wind speed."""
return self.zamg_data.get_data(ATTR_WEATHER_WIND_SPEED)
@property
def wind_bearing(self):
"""Return the wind bearing."""
return self.zamg_data.get_data(ATTR_WEATHER_WIND_BEARING)
def update(self):
"""Update current conditions."""
self.zamg_data.update()