core/homeassistant/components/postnl/sensor.py

94 lines
2.4 KiB
Python

"""Sensor for PostNL packages."""
from datetime import timedelta
import logging
import voluptuous as vol
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import (
ATTR_ATTRIBUTION, CONF_NAME, CONF_PASSWORD, CONF_USERNAME)
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity import Entity
from homeassistant.util import Throttle
REQUIREMENTS = ['postnl_api==1.0.2']
_LOGGER = logging.getLogger(__name__)
ATTRIBUTION = 'Information provided by PostNL'
DEFAULT_NAME = 'postnl'
ICON = 'mdi:package-variant-closed'
MIN_TIME_BETWEEN_UPDATES = timedelta(minutes=30)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_USERNAME): cv.string,
vol.Required(CONF_PASSWORD): cv.string,
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
})
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the PostNL sensor platform."""
from postnl_api import PostNL_API, UnauthorizedException
username = config.get(CONF_USERNAME)
password = config.get(CONF_PASSWORD)
name = config.get(CONF_NAME)
try:
api = PostNL_API(username, password)
except UnauthorizedException:
_LOGGER.exception("Can't connect to the PostNL webservice")
return
add_entities([PostNLSensor(api, name)], True)
class PostNLSensor(Entity):
"""Representation of a PostNL sensor."""
def __init__(self, api, name):
"""Initialize the PostNL sensor."""
self._name = name
self._attributes = {
ATTR_ATTRIBUTION: ATTRIBUTION,
}
self._state = None
self._api = api
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def state(self):
"""Return the state of the sensor."""
return self._state
@property
def unit_of_measurement(self):
"""Return the unit of measurement of this entity, if any."""
return 'packages'
@property
def device_state_attributes(self):
"""Return the state attributes."""
return self._attributes
@property
def icon(self):
"""Icon to use in the frontend."""
return ICON
@Throttle(MIN_TIME_BETWEEN_UPDATES)
def update(self):
"""Update device state."""
shipments = self._api.get_relevant_shipments()
self._attributes['shipments'] = shipments
self._state = len(shipments)