wip function get measurement data

custom_components/aigues_barcelona/sensor.py

@@ -202,21 +202,27 @@ async def _clear_statistics(self) -> None:
                 clear_statistics, self.hass.data[RECORDER_DATA_INSTANCE], to_clear
             )
 
-    async def _async_import_statistics(self, consumptions) -> None:
-        # force sort by datetime
-        consumptions = sorted(
-            consumptions, key=lambda x: datetime.fromisoformat(x["datetime"])
-        )
-
-        # Retrieve the last stored value of accumulatedConsumption
+    async def get_last_measurement_stored(self):
         last_stored_value = 0.0
+        last_stored_date = None
+
         all_ids = await get_db_instance(self.hass).async_add_executor_job(
             list_statistic_ids, self.hass
         )
+
         for stat_id in all_ids:
             if stat_id["statistic_id"] == self.internal_sensor_id:
                 if stat_id.get("sum") and stat_id["sum"] > last_stored_value:
                     last_stored_value = stat_id["sum"]
+                    last_stored_date = stat_id["start"]
+
+        return last_stored_date
+
+    async def _async_import_statistics(self, consumptions) -> None:
+        # force sort by datetime
+        consumptions = sorted(
+            consumptions, key=lambda x: datetime.fromisoformat(x["datetime"])
+        )
 
         stats = list()
         for metric in consumptions: