119 lines
3.8 KiB
Python
119 lines
3.8 KiB
Python
"""
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Weather information for air and road temperature, provided by Trafikverket.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/sensor.trafikverket_weatherstation/
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"""
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import asyncio
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from datetime import timedelta
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import logging
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import aiohttp
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import voluptuous as vol
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from homeassistant.components.sensor import PLATFORM_SCHEMA
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from homeassistant.const import (
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ATTR_ATTRIBUTION, CONF_API_KEY, CONF_MONITORED_CONDITIONS, CONF_NAME)
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from homeassistant.helpers.aiohttp_client import async_get_clientsession
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.entity import Entity
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from homeassistant.util import Throttle
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REQUIREMENTS = ['pytrafikverket==0.1.5.8']
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_LOGGER = logging.getLogger(__name__)
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SCAN_INTERVAL = timedelta(seconds=300)
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MIN_TIME_BETWEEN_UPDATES = timedelta(minutes=10)
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CONF_ATTRIBUTION = "Data provided by Trafikverket API"
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CONF_STATION = 'station'
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SENSOR_TYPES = {
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'air_temp': ['Air temperature', '°C', 'air_temp'],
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'road_temp': ['Road temperature', '°C', 'road_temp'],
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'precipitation': ['Precipitation type', None, 'precipitationtype'],
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'wind_direction': ['Wind direction', '°', 'winddirection'],
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'wind_direction_text': ['Wind direction text', None, 'winddirectiontext'],
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'wind_speed': ['Wind speed', 'm/s', 'windforce'],
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'humidity': ['Humidity', '%', 'humidity'],
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}
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_NAME): cv.string,
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vol.Required(CONF_API_KEY): cv.string,
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vol.Required(CONF_STATION): cv.string,
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vol.Required(CONF_MONITORED_CONDITIONS, default=[]):
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[vol.In(SENSOR_TYPES)],
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})
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async def async_setup_platform(hass, config, async_add_entities,
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discovery_info=None):
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"""Set up the Trafikverket sensor platform."""
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from pytrafikverket.trafikverket_weather import TrafikverketWeather
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sensor_name = config[CONF_NAME]
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sensor_api = config[CONF_API_KEY]
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sensor_station = config[CONF_STATION]
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web_session = async_get_clientsession(hass)
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weather_api = TrafikverketWeather(web_session, sensor_api)
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dev = []
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for condition in config[CONF_MONITORED_CONDITIONS]:
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dev.append(TrafikverketWeatherStation(
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weather_api, sensor_name, condition, sensor_station))
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if dev:
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async_add_entities(dev, True)
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class TrafikverketWeatherStation(Entity):
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"""Representation of a Trafikverket sensor."""
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def __init__(self, weather_api, name, sensor_type, sensor_station):
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"""Initialize the sensor."""
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self._client = name
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self._name = SENSOR_TYPES[sensor_type][0]
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self._type = sensor_type
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self._state = None
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self._unit = SENSOR_TYPES[sensor_type][1]
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self._station = sensor_station
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self._weather_api = weather_api
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self._attributes = {
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ATTR_ATTRIBUTION: CONF_ATTRIBUTION,
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}
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self._weather = None
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@property
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def name(self):
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"""Return the name of the sensor."""
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return '{} {}'.format(self._client, self._name)
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@property
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def state(self):
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"""Return the state of the device."""
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return self._state
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@property
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def unit_of_measurement(self):
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"""Return the unit of measurement of this entity, if any."""
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return self._unit
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@Throttle(MIN_TIME_BETWEEN_UPDATES)
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async def async_update(self):
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"""Get the latest data from Trafikverket and updates the states."""
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try:
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self._weather = await self._weather_api.async_get_weather(
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self._station)
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self._state = getattr(
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self._weather,
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SENSOR_TYPES[self._type][2])
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except (asyncio.TimeoutError,
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aiohttp.ClientError, ValueError) as error:
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_LOGGER.error("Couldn't fetch weather data: %s", error)
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