core/homeassistant/components/stookalert/binary_sensor.py

87 lines
2.3 KiB
Python

"""This component provides support for Stookalert Binary Sensor."""
from datetime import timedelta
import stookalert
import voluptuous as vol
from homeassistant.components.binary_sensor import (
DEVICE_CLASS_SAFETY,
PLATFORM_SCHEMA,
BinarySensorEntity,
)
from homeassistant.const import ATTR_ATTRIBUTION, CONF_NAME
from homeassistant.helpers import config_validation as cv
SCAN_INTERVAL = timedelta(minutes=60)
CONF_PROVINCE = "province"
DEFAULT_DEVICE_CLASS = DEVICE_CLASS_SAFETY
DEFAULT_NAME = "Stookalert"
ATTRIBUTION = "Data provided by rivm.nl"
PROVINCES = [
"Drenthe",
"Flevoland",
"Friesland",
"Gelderland",
"Groningen",
"Limburg",
"Noord-Brabant",
"Noord-Holland",
"Overijssel",
"Utrecht",
"Zeeland",
"Zuid-Holland",
]
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
{
vol.Required(CONF_PROVINCE): vol.In(PROVINCES),
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
}
)
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the Stookalert binary sensor platform."""
province = config[CONF_PROVINCE]
name = config[CONF_NAME]
api_handler = stookalert.stookalert(province)
add_entities([StookalertBinarySensor(name, api_handler)], update_before_add=True)
class StookalertBinarySensor(BinarySensorEntity):
"""An implementation of RIVM Stookalert."""
def __init__(self, name, api_handler):
"""Initialize a Stookalert device."""
self._name = name
self._api_handler = api_handler
@property
def device_state_attributes(self):
"""Return the attribute(s) of the sensor."""
state_attr = {ATTR_ATTRIBUTION: ATTRIBUTION}
if self._api_handler.last_updated is not None:
state_attr["last_updated"] = self._api_handler.last_updated.isoformat()
return state_attr
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def is_on(self):
"""Return True if the Alert is active."""
return self._api_handler.state == 1
@property
def device_class(self):
"""Return the device class of this binary sensor."""
return DEFAULT_DEVICE_CLASS
def update(self):
"""Update the data from the Stookalert handler."""
self._api_handler.get_alerts()