core/homeassistant/components/sensor/foobot.py

159 lines
5.2 KiB
Python

"""
Support for the Foobot indoor air quality monitor.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/sensor.foobot/
"""
import asyncio
import logging
from datetime import timedelta
import aiohttp
import voluptuous as vol
import homeassistant.helpers.config_validation as cv
from homeassistant.exceptions import PlatformNotReady
from homeassistant.const import (
ATTR_TIME, ATTR_TEMPERATURE, CONF_TOKEN, CONF_USERNAME, TEMP_CELSIUS)
from homeassistant.helpers.aiohttp_client import async_get_clientsession
from homeassistant.helpers.config_validation import PLATFORM_SCHEMA
from homeassistant.helpers.entity import Entity
from homeassistant.util import Throttle
REQUIREMENTS = ['foobot_async==0.3.1']
_LOGGER = logging.getLogger(__name__)
ATTR_HUMIDITY = 'humidity'
ATTR_PM2_5 = 'PM2.5'
ATTR_CARBON_DIOXIDE = 'CO2'
ATTR_VOLATILE_ORGANIC_COMPOUNDS = 'VOC'
ATTR_FOOBOT_INDEX = 'index'
SENSOR_TYPES = {'time': [ATTR_TIME, 's'],
'pm': [ATTR_PM2_5, 'µg/m3', 'mdi:cloud'],
'tmp': [ATTR_TEMPERATURE, TEMP_CELSIUS, 'mdi:thermometer'],
'hum': [ATTR_HUMIDITY, '%', 'mdi:water-percent'],
'co2': [ATTR_CARBON_DIOXIDE, 'ppm',
'mdi:periodic-table-co2'],
'voc': [ATTR_VOLATILE_ORGANIC_COMPOUNDS, 'ppb',
'mdi:cloud'],
'allpollu': [ATTR_FOOBOT_INDEX, '%', 'mdi:percent']}
SCAN_INTERVAL = timedelta(minutes=10)
PARALLEL_UPDATES = 1
TIMEOUT = 10
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_TOKEN): cv.string,
vol.Required(CONF_USERNAME): cv.string,
})
async def async_setup_platform(hass, config, async_add_entities,
discovery_info=None):
"""Set up the devices associated with the account."""
from foobot_async import FoobotClient
token = config.get(CONF_TOKEN)
username = config.get(CONF_USERNAME)
client = FoobotClient(token, username,
async_get_clientsession(hass),
timeout=TIMEOUT)
dev = []
try:
devices = await client.get_devices()
_LOGGER.debug("The following devices were found: %s", devices)
for device in devices:
foobot_data = FoobotData(client, device['uuid'])
for sensor_type in SENSOR_TYPES:
if sensor_type == 'time':
continue
foobot_sensor = FoobotSensor(foobot_data, device, sensor_type)
dev.append(foobot_sensor)
except (aiohttp.client_exceptions.ClientConnectorError,
asyncio.TimeoutError, FoobotClient.TooManyRequests,
FoobotClient.InternalError):
_LOGGER.exception('Failed to connect to foobot servers.')
raise PlatformNotReady
except FoobotClient.ClientError:
_LOGGER.error('Failed to fetch data from foobot servers.')
return
async_add_entities(dev, True)
class FoobotSensor(Entity):
"""Implementation of a Foobot sensor."""
def __init__(self, data, device, sensor_type):
"""Initialize the sensor."""
self._uuid = device['uuid']
self.foobot_data = data
self._name = 'Foobot {} {}'.format(device['name'],
SENSOR_TYPES[sensor_type][0])
self.type = sensor_type
self._unit_of_measurement = SENSOR_TYPES[sensor_type][1]
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def icon(self):
"""Icon to use in the frontend."""
return SENSOR_TYPES[self.type][2]
@property
def state(self):
"""Return the state of the device."""
try:
data = self.foobot_data.data[self.type]
except(KeyError, TypeError):
data = None
return data
@property
def unique_id(self):
"""Return the unique id of this entity."""
return "{}_{}".format(self._uuid, self.type)
@property
def unit_of_measurement(self):
"""Return the unit of measurement of this entity."""
return self._unit_of_measurement
async def async_update(self):
"""Get the latest data."""
await self.foobot_data.async_update()
class FoobotData(Entity):
"""Get data from Foobot API."""
def __init__(self, client, uuid):
"""Initialize the data object."""
self._client = client
self._uuid = uuid
self.data = {}
@Throttle(SCAN_INTERVAL)
async def async_update(self):
"""Get the data from Foobot API."""
interval = SCAN_INTERVAL.total_seconds()
try:
response = await self._client.get_last_data(self._uuid,
interval,
interval + 1)
except (aiohttp.client_exceptions.ClientConnectorError,
asyncio.TimeoutError, self._client.TooManyRequests,
self._client.InternalError):
_LOGGER.debug("Couldn't fetch data")
return False
_LOGGER.debug("The data response is: %s", response)
self.data = {k: round(v, 1) for k, v in response[0].items()}
return True