Add roomba total cleaned area sensor (#106640)

* Add roomba total cleaned area sensor

* Use parentheses for multi-line lambda

* Update homeassistant/components/roomba/sensor.py

Co-authored-by: Jan-Philipp Benecke <github@bnck.me>

* Update homeassistant/components/roomba/sensor.py

Co-authored-by: Jan-Philipp Benecke <github@bnck.me>

* Revert "Update homeassistant/components/roomba/sensor.py"

This reverts commit 819be6179f140c155687d8916bbe59f3dba9913f.

---------

Co-authored-by: Jan-Philipp Benecke <github@bnck.me>

homeassistant/components/roomba/sensor.py

@@ -11,7 +11,12 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import PERCENTAGE, EntityCategory, UnitOfTime
+from homeassistant.const import (
+    AREA_SQUARE_METERS,
+    PERCENTAGE,
+    EntityCategory,
+    UnitOfTime,
+)
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import StateType
@@ -114,6 +119,20 @@ SENSORS: list[RoombaSensorEntityDescription] = [
         value_fn=lambda self: self.run_stats.get("nScrubs"),
         entity_registry_enabled_default=False,
     ),
+    RoombaSensorEntityDescription(
+        key="total_cleaned_area",
+        translation_key="total_cleaned_area",
+        icon="mdi:texture-box",
+        native_unit_of_measurement=AREA_SQUARE_METERS,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        value_fn=lambda self: (
+            self.run_stats.get("sqft") * 9.29
+            if self.run_stats.get("sqft") is not None
+            else None
+        ),
+        suggested_display_precision=0,
+        entity_registry_enabled_default=False,
+    ),
 ]
 
 

homeassistant/components/roomba/strings.json

@@ -84,6 +84,9 @@
       },
       "scrubs_count": {
         "name": "Scrubs"
+      },
+      "total_cleaned_area": {
+        "name": "Total cleaned area"
       }
     }
   }