core/homeassistant/components/arest/binary_sensor.py

113 lines
3.4 KiB
Python

"""Support for an exposed aREST RESTful API of a device."""
from __future__ import annotations
from datetime import timedelta
from http import HTTPStatus
import logging
import requests
import voluptuous as vol
from homeassistant.components.binary_sensor import (
DEVICE_CLASSES_SCHEMA,
PLATFORM_SCHEMA as BINARY_SENSOR_PLATFORM_SCHEMA,
BinarySensorEntity,
)
from homeassistant.const import CONF_DEVICE_CLASS, CONF_NAME, CONF_PIN, CONF_RESOURCE
from homeassistant.core import HomeAssistant
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
from homeassistant.util import Throttle
_LOGGER = logging.getLogger(__name__)
MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=30)
PLATFORM_SCHEMA = BINARY_SENSOR_PLATFORM_SCHEMA.extend(
{
vol.Required(CONF_RESOURCE): cv.url,
vol.Optional(CONF_NAME): cv.string,
vol.Required(CONF_PIN): cv.string,
vol.Optional(CONF_DEVICE_CLASS): DEVICE_CLASSES_SCHEMA,
}
)
def setup_platform(
hass: HomeAssistant,
config: ConfigType,
add_entities: AddEntitiesCallback,
discovery_info: DiscoveryInfoType | None = None,
) -> None:
"""Set up the aREST binary sensor."""
resource = config[CONF_RESOURCE]
pin = config[CONF_PIN]
device_class = config.get(CONF_DEVICE_CLASS)
try:
response = requests.get(resource, timeout=10).json()
except requests.exceptions.MissingSchema:
_LOGGER.error(
"Missing resource or schema in configuration. Add http:// to your URL"
)
return
except requests.exceptions.ConnectionError:
_LOGGER.error("No route to device at %s", resource)
return
arest = ArestData(resource, pin)
add_entities(
[
ArestBinarySensor(
arest,
resource,
config.get(CONF_NAME, response[CONF_NAME]),
device_class,
pin,
)
],
True,
)
class ArestBinarySensor(BinarySensorEntity):
"""Implement an aREST binary sensor for a pin."""
def __init__(self, arest, resource, name, device_class, pin):
"""Initialize the aREST device."""
self.arest = arest
self._attr_name = name
self._attr_device_class = device_class
if pin is not None:
request = requests.get(f"{resource}/mode/{pin}/i", timeout=10)
if request.status_code != HTTPStatus.OK:
_LOGGER.error("Can't set mode of %s", resource)
def update(self) -> None:
"""Get the latest data from aREST API."""
self.arest.update()
self._attr_is_on = bool(self.arest.data.get("state"))
class ArestData:
"""Class for handling the data retrieval for pins."""
def __init__(self, resource, pin):
"""Initialize the aREST data object."""
self._resource = resource
self._pin = pin
self.data = {}
@Throttle(MIN_TIME_BETWEEN_UPDATES)
def update(self) -> None:
"""Get the latest data from aREST device."""
try:
response = requests.get(f"{self._resource}/digital/{self._pin}", timeout=10)
self.data = {"state": response.json()["return_value"]}
except requests.exceptions.ConnectionError:
_LOGGER.error("No route to device '%s'", self._resource)