Add binary sensors to Roborock (#99990)

* init binary sensors commit

* add binary sensors

* fix test

* Apply suggestions from code review

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

---------

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

homeassistant/components/roborock/binary_sensor.py

@@ -0,0 +1,110 @@
+"""Support for Roborock sensors."""
+from __future__ import annotations
+
+from collections.abc import Callable
+from dataclasses import dataclass
+
+from roborock.roborock_typing import DeviceProp
+
+from homeassistant.components.binary_sensor import (
+    BinarySensorDeviceClass,
+    BinarySensorEntity,
+    BinarySensorEntityDescription,
+)
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import EntityCategory
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.util import slugify
+
+from .const import DOMAIN
+from .coordinator import RoborockDataUpdateCoordinator
+from .device import RoborockCoordinatedEntity
+
+
+@dataclass
+class RoborockBinarySensorDescriptionMixin:
+    """A class that describes binary sensor entities."""
+
+    value_fn: Callable[[DeviceProp], bool]
+
+
+@dataclass
+class RoborockBinarySensorDescription(
+    BinarySensorEntityDescription, RoborockBinarySensorDescriptionMixin
+):
+    """A class that describes Roborock binary sensors."""
+
+
+BINARY_SENSOR_DESCRIPTIONS = [
+    RoborockBinarySensorDescription(
+        key="dry_status",
+        translation_key="mop_drying_status",
+        icon="mdi:heat-wave",
+        device_class=BinarySensorDeviceClass.RUNNING,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        value_fn=lambda data: data.status.dry_status,
+    ),
+    RoborockBinarySensorDescription(
+        key="water_box_carriage_status",
+        translation_key="mop_attached",
+        icon="mdi:square-rounded",
+        device_class=BinarySensorDeviceClass.CONNECTIVITY,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        value_fn=lambda data: data.status.water_box_carriage_status,
+    ),
+    RoborockBinarySensorDescription(
+        key="water_box_status",
+        translation_key="water_box_attached",
+        icon="mdi:water",
+        device_class=BinarySensorDeviceClass.CONNECTIVITY,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        value_fn=lambda data: data.status.water_box_status,
+    ),
+]
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    config_entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up the Roborock vacuum binary sensors."""
+    coordinators: dict[str, RoborockDataUpdateCoordinator] = hass.data[DOMAIN][
+        config_entry.entry_id
+    ]
+    async_add_entities(
+        RoborockBinarySensorEntity(
+            f"{description.key}_{slugify(device_id)}",
+            coordinator,
+            description,
+        )
+        for device_id, coordinator in coordinators.items()
+        for description in BINARY_SENSOR_DESCRIPTIONS
+        if description.value_fn(coordinator.roborock_device_info.props) is not None
+    )
+
+
+class RoborockBinarySensorEntity(RoborockCoordinatedEntity, BinarySensorEntity):
+    """Representation of a Roborock binary sensor."""
+
+    entity_description: RoborockBinarySensorDescription
+
+    def __init__(
+        self,
+        unique_id: str,
+        coordinator: RoborockDataUpdateCoordinator,
+        description: RoborockBinarySensorDescription,
+    ) -> None:
+        """Initialize the entity."""
+        super().__init__(unique_id, coordinator)
+        self.entity_description = description
+
+    @property
+    def is_on(self) -> bool:
+        """Return the value reported by the sensor."""
+        return bool(
+            self.entity_description.value_fn(
+                self.coordinator.roborock_device_info.props
+            )
+        )

homeassistant/components/roborock/const.py

@@ -13,4 +13,5 @@ PLATFORMS = [
     Platform.SWITCH,
     Platform.TIME,
     Platform.NUMBER,
+    Platform.BINARY_SENSOR,
 ]

homeassistant/components/roborock/strings.json

@@ -27,6 +27,17 @@
     }
   },
   "entity": {
+    "binary_sensor": {
+      "mop_attached": {
+        "name": "Mop attached"
+      },
+      "mop_drying_status": {
+        "name": "Mop drying"
+      },
+      "water_box_attached": {
+        "name": "Water box attached"
+      }
+    },
     "number": {
       "volume": {
         "name": "Volume"

tests/components/roborock/test_binary_sensor.py

@@ -0,0 +1,17 @@
+"""Test Roborock Binary Sensor."""
+
+from homeassistant.core import HomeAssistant
+
+from tests.common import MockConfigEntry
+
+
+async def test_binary_sensors(
+    hass: HomeAssistant, setup_entry: MockConfigEntry
+) -> None:
+    """Test binary sensors and check test values are correctly set."""
+    assert len(hass.states.async_all("binary_sensor")) == 2
+    assert hass.states.get("binary_sensor.roborock_s7_maxv_mop_attached").state == "on"
+    assert (
+        hass.states.get("binary_sensor.roborock_s7_maxv_water_box_attached").state
+        == "on"
+    )