Separate Blue Current timestamp sensors (#111942)

homeassistant/components/blue_current/sensor.py

@@ -23,8 +23,6 @@ from . import Connector
 from .const import DOMAIN
 from .entity import BlueCurrentEntity, ChargepointEntity
 
-TIMESTAMP_KEYS = ("start_datetime", "stop_datetime", "offline_since")
-
 SENSORS = (
     SensorEntityDescription(
         key="actual_v1",
@@ -102,21 +100,6 @@ SENSORS = (
         translation_key="actual_kwh",
         state_class=SensorStateClass.TOTAL_INCREASING,
     ),
-    SensorEntityDescription(
-        key="start_datetime",
-        device_class=SensorDeviceClass.TIMESTAMP,
-        translation_key="start_datetime",
-    ),
-    SensorEntityDescription(
-        key="stop_datetime",
-        device_class=SensorDeviceClass.TIMESTAMP,
-        translation_key="stop_datetime",
-    ),
-    SensorEntityDescription(
-        key="offline_since",
-        device_class=SensorDeviceClass.TIMESTAMP,
-        translation_key="offline_since",
-    ),
     SensorEntityDescription(
         key="total_cost",
         native_unit_of_measurement=CURRENCY_EURO,
@@ -168,6 +151,21 @@ SENSORS = (
     ),
 )
 
+TIMESTAMP_SENSORS = (
+    SensorEntityDescription(
+        key="start_datetime",
+        translation_key="start_datetime",
+    ),
+    SensorEntityDescription(
+        key="stop_datetime",
+        translation_key="stop_datetime",
+    ),
+    SensorEntityDescription(
+        key="offline_since",
+        translation_key="offline_since",
+    ),
+)
+
 GRID_SENSORS = (
     SensorEntityDescription(
         key="grid_actual_p1",
@@ -223,6 +221,14 @@ async def async_setup_entry(
         for sensor in SENSORS
     ]
 
+    sensor_list.extend(
+        [
+            ChargePointTimestampSensor(connector, sensor, evse_id)
+            for evse_id in connector.charge_points
+            for sensor in TIMESTAMP_SENSORS
+        ]
+    )
+
     sensor_list.extend(GridSensor(connector, sensor) for sensor in GRID_SENSORS)
 
     async_add_entities(sensor_list)
@@ -251,17 +257,31 @@ class ChargePointSensor(ChargepointEntity, SensorEntity):
         new_value = self.connector.charge_points[self.evse_id].get(self.key)
 
         if new_value is not None:
-            if self.key in TIMESTAMP_KEYS and not (
-                self._attr_native_value is None or self._attr_native_value < new_value
-            ):
-                return
             self.has_value = True
             self._attr_native_value = new_value
 
-        elif self.key not in TIMESTAMP_KEYS:
+        else:
             self.has_value = False
 
 
+class ChargePointTimestampSensor(ChargePointSensor):
+    """Define a timestamp sensor."""
+
+    _attr_device_class = SensorDeviceClass.TIMESTAMP
+
+    @callback
+    def update_from_latest_data(self) -> None:
+        """Update the sensor from the latest data."""
+        new_value = self.connector.charge_points[self.evse_id].get(self.key)
+
+        # only update if the new_value is a newer timestamp.
+        if new_value is not None and (
+            self.has_value is False or self._attr_native_value < new_value
+        ):
+            self.has_value = True
+            self._attr_native_value = new_value
+
+
 class GridSensor(BlueCurrentEntity, SensorEntity):
     """Define a grid sensor."""