Fix Gesamtlast (#398)

Make Gesamtlast endpoint understand the legacy load mesaurement data format.

Signed-off-by: Bobby Noelte <b0661n0e17e@gmail.com>

src/akkudoktoreos/core/dataabc.py

@@ -759,6 +759,33 @@ class DataSequence(DataBase, MutableSequence):
 
         return dates, values
 
+    def key_from_lists(self, key: str, dates: List[DateTime], values: List[float]) -> None:
+        """Update the DataSequence from lists of datetime and value elements.
+
+        The dates list should represent the date_time of each DataRecord, and the values list
+        should represent the corresponding data values for the specified key.
+
+        Args:
+            key (str): The field name in the DataRecord that corresponds to the values in the Series.
+            dates: List of datetime elements.
+            values: List of values corresponding to the specified key in the data records.
+        """
+        self._validate_key_writable(key)
+
+        for i, date_time in enumerate(dates):
+            # Ensure datetime objects are normalized
+            date_time = to_datetime(date_time, to_maxtime=False) if date_time else None
+            # Check if there's an existing record for this date_time
+            existing_record = next((r for r in self.records if r.date_time == date_time), None)
+            if existing_record:
+                # Update existing record's specified key
+                setattr(existing_record, key, values[i])
+            else:
+                # Create a new DataRecord if none exists
+                new_record = self.record_class()(date_time=date_time, **{key: values[i]})
+                self.records.append(new_record)
+        self.sort_by_datetime()
+
     def key_to_series(
         self,
         key: str,

src/akkudoktoreos/server/eos.py

@@ -616,19 +616,30 @@ def fastapi_gesamtlast(request: GesamtlastRequest) -> list[float]:
     measurement_key = "measurement_load0_mr"
     measurement_eos.key_delete_by_datetime(key=measurement_key)  # delete all load0_mr measurements
     energy = {}
-    for data_dict in request.measured_data:
-        for date_time, value in data_dict.items():
-            dt_str = to_datetime(date_time, as_string=True)
+    try:
+        for data_dict in request.measured_data:
+            dt_str = to_datetime(data_dict["time"], as_string=True)
+            value = float(data_dict["Last"])
             energy[dt_str] = value
-    energy_mr = 0
+    except Exception as e:
+        raise HTTPException(
+            status_code=404,
+            detail=f"Invalid measured data: {e}.",
+        )
+    energy_mr_dates = []
+    energy_mr_values = []
+    energy_mr = 0.0
     for i, key in enumerate(sorted(energy)):
         energy_mr += energy[key]
         dt = to_datetime(key)
         if i == 0:
             # first element, add start value before
             dt_before = dt - to_duration("1 hour")
-            measurement_eos.update_value(date=dt_before, key=measurement_key, value=0.0)
-        measurement_eos.update_value(date=dt, key=measurement_key, value=energy_mr)
+            energy_mr_dates.append(dt_before)
+            energy_mr_values.append(0.0)
+        energy_mr_dates.append(dt)
+        energy_mr_values.append(energy_mr)
+    measurement_eos.key_from_lists(measurement_key, energy_mr_dates, energy_mr_values)
 
     # Create load forecast
     prediction_eos.update_data(force_update=True)