binary_sensor.py

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"""Support for ZoneMinder binary sensors."""
 
from __future__ import annotations
 
from zoneminder.zm import ZoneMinder
 
from homeassistant.components.binary_sensor import (
    BinarySensorDeviceClass,
    BinarySensorEntity,
)
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
from . import DOMAIN as ZONEMINDER_DOMAIN
 
 
async def async_setup_platform(
    hass: HomeAssistant,
    config: ConfigType,
    add_entities: AddEntitiesCallback,
    discovery_info: DiscoveryInfoType | None = None,
) -> None:
    """Set up the ZoneMinder binary sensor platform."""
    sensors = []
    for host_name, zm_client in hass.data[ZONEMINDER_DOMAIN].items():
        sensors.append(ZMAvailabilitySensor(host_name, zm_client))
    add_entities(sensors)
 
 
class ZMAvailabilitySensor(BinarySensorEntity):
    """Representation of the availability of ZoneMinder as a binary sensor."""
 
    _attr_device_class = BinarySensorDeviceClass.CONNECTIVITY
 
    def __init__(self, host_name: str, client: ZoneMinder) -> None:
        """Initialize availability sensor."""
        self._attr_name_attr_name = host_name
        self._client_client = client
 
    def update(self) -> None:
        """Update the state of this sensor (availability of ZoneMinder)."""
        self._attr_is_on_attr_is_on = self._client_client.is_available