Implement Roborock dock cleaning fluid status

homeassistant/components/roborock/binary_sensor.py

@@ -5,7 +5,7 @@
 from collections.abc import Callable
 from dataclasses import dataclass
 
-from roborock.data import RoborockStateCode
+from roborock.data import CleanFluidStatus, RoborockStateCode
 
 from homeassistant.components.binary_sensor import (
     BinarySensorDeviceClass,
@@ -64,6 +64,18 @@ class RoborockBinarySensorDescription(BinarySensorEntityDescription):
         entity_category=EntityCategory.DIAGNOSTIC,
         value_fn=lambda data: data.status.water_shortage_status,
     ),
+    RoborockBinarySensorDescription(
+        key="clean_fluid_empty",
+        translation_key="clean_fluid_empty",
+        device_class=BinarySensorDeviceClass.PROBLEM,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        value_fn=lambda data: (
+            data.status.clean_fluid_status == CleanFluidStatus.empty_not_installed
+            if data.status.clean_fluid_status is not None
+            else None
+        ),
+        is_dock_entity=True,
+    ),
     RoborockBinarySensorDescription(
         key="in_cleaning",
         translation_key="in_cleaning",

homeassistant/components/roborock/icons.json

@@ -1,6 +1,9 @@
 {
   "entity": {
     "binary_sensor": {
+      "clean_fluid_empty": {
+        "default": "mdi:spray-bottle"
+      },
       "in_cleaning": {
         "default": "mdi:vacuum"
       },

homeassistant/components/roborock/strings.json

@@ -41,6 +41,9 @@
   },
   "entity": {
     "binary_sensor": {
+      "clean_fluid_empty": {
+        "name": "Cleaning fluid"
+      },
       "in_cleaning": {
         "name": "Cleaning"
       },

tests/components/roborock/mock_data.py

@@ -1389,6 +1389,7 @@
         "home_sec_enable_password": 0,
         "adbumper_status": [0, 0, 0],
         "water_shortage_status": 0,
+        "clean_fluid_status": 0,
         "dock_type": 3,
         "dust_collection_status": 0,
         "auto_dust_collection": 1,