Add WiZ occupancy sensor support (#66231)

homeassistant/components/wiz/binary_sensor.py

@@ -0,0 +1,81 @@
+"""WiZ integration binary sensor platform."""
+from __future__ import annotations
+
+from collections.abc import Callable
+
+from pywizlight.bulb import PIR_SOURCE
+
+from homeassistant.components.binary_sensor import (
+    BinarySensorDeviceClass,
+    BinarySensorEntity,
+)
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant, callback
+from homeassistant.helpers import entity_registry as er
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+
+from .const import DOMAIN, SIGNAL_WIZ_PIR
+from .entity import WizEntity
+from .models import WizData
+
+OCCUPANCY_UNIQUE_ID = "{}_occupancy"
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up the WiZ binary sensor platform."""
+    wiz_data: WizData = hass.data[DOMAIN][entry.entry_id]
+    mac = wiz_data.bulb.mac
+
+    if er.async_get(hass).async_get_entity_id(
+        Platform.BINARY_SENSOR, DOMAIN, OCCUPANCY_UNIQUE_ID.format(mac)
+    ):
+        async_add_entities([WizOccupancyEntity(wiz_data, entry.title)])
+        return
+
+    cancel_dispatcher: Callable[[], None] | None = None
+
+    @callback
+    def _async_add_occupancy_sensor() -> None:
+        nonlocal cancel_dispatcher
+        assert cancel_dispatcher is not None
+        cancel_dispatcher()
+        cancel_dispatcher = None
+        async_add_entities([WizOccupancyEntity(wiz_data, entry.title)])
+
+    cancel_dispatcher = async_dispatcher_connect(
+        hass, SIGNAL_WIZ_PIR.format(mac), _async_add_occupancy_sensor
+    )
+
+    @callback
+    def _async_cancel_dispatcher() -> None:
+        nonlocal cancel_dispatcher
+        if cancel_dispatcher is not None:
+            cancel_dispatcher()
+            cancel_dispatcher = None
+
+    entry.async_on_unload(_async_cancel_dispatcher)
+
+
+class WizOccupancyEntity(WizEntity, BinarySensorEntity):
+    """Representation of WiZ Occupancy sensor."""
+
+    _attr_device_class = BinarySensorDeviceClass.OCCUPANCY
+
+    def __init__(self, wiz_data: WizData, name: str) -> None:
+        """Initialize an WiZ device."""
+        super().__init__(wiz_data, name)
+        self._attr_unique_id = OCCUPANCY_UNIQUE_ID.format(self._device.mac)
+        self._attr_name = f"{name} Occupancy"
+        self._async_update_attrs()
+
+    @callback
+    def _async_update_attrs(self) -> None:
+        """Handle updating _attr values."""
+        if self._device.state.get_source() == PIR_SOURCE:
+            self._attr_is_on = self._device.status