fix: ensure EV charge rates settings available

Allow charge rates for electric vehicle to be provided by the POST
optimize endpoint. Create a default value in case neither the
parameters nor the configuration provide charge rates.

This is also to allow to migrate from 0.1.0 configuration format
to actual one.

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

src/akkudoktoreos/devices/devices.py

@@ -71,7 +71,7 @@ class BatteriesCommonSettings(DevicesBaseSettings):
         default=0,
         ge=0,
         le=100,
-        description="Minimum state of charge (SOC) as percentage of capacity [%].",
+        description="Minimum state of charge (SOC) as percentage of capacity [%]. This is the target SoC for charging",
         examples=[10],
     )
 

src/akkudoktoreos/optimization/genetic/genetic.py

@@ -837,15 +837,33 @@ class GeneticOptimization(OptimizationBase):
             self.optimize_ev = (
                 parameters.eauto.min_soc_percentage - parameters.eauto.initial_soc_percentage >= 0
             )
-            try:
-                charge_rates = self.config.devices.electric_vehicles[0].charge_rates
-                if charge_rates is None:
-                    raise
-            except:
-                error_msg = "No charge rates provided for electric vehicle."
-                logger.exception(error_msg)
-                raise ValueError(error_msg)
-            self.ev_possible_charge_values = charge_rates
+            # electrical vehicle charge rates
+            if parameters.eauto.charge_rates is not None:
+                self.ev_possible_charge_values = parameters.eauto.charge_rates
+            elif (
+                self.config.devices.electric_vehicles
+                and self.config.devices.electric_vehicles[0]
+                and self.config.devices.electric_vehicles[0].charge_rates is not None
+            ):
+                self.ev_possible_charge_values = self.config.devices.electric_vehicles[
+                    0
+                ].charge_rates
+            else:
+                warning_msg = "No charge rates provided for electric vehicle - using default."
+                logger.warning(warning_msg)
+                self.ev_possible_charge_values = [
+                    0.0,
+                    0.1,
+                    0.2,
+                    0.3,
+                    0.4,
+                    0.5,
+                    0.6,
+                    0.7,
+                    0.8,
+                    0.9,
+                    1.0,
+                ]
         else:
             self.optimize_ev = False
 

src/akkudoktoreos/optimization/genetic/geneticdevices.py

@@ -90,6 +90,11 @@ class ElectricVehicleParameters(BaseBatteryParameters):
     initial_soc_percentage: int = initial_soc_percentage_field(
         "An integer representing the current state of charge (SOC) of the battery in percentage."
     )
+    charge_rates: Optional[list[float]] = Field(
+        default=None,
+        description="Charge rates as factor of maximum charging power [0.00 ... 1.00]. None denotes all charge rates are available.",
+        examples=[[0.0, 0.25, 0.5, 0.75, 1.0], None],
+    )
 
 
 class HomeApplianceParameters(DeviceParameters):

src/akkudoktoreos/optimization/genetic/geneticparams.py

@@ -462,6 +462,7 @@ class GeneticOptimizationParameters(
                         capacity_wh=electric_vehicle_config.capacity_wh,
                         charging_efficiency=electric_vehicle_config.charging_efficiency,
                         discharging_efficiency=electric_vehicle_config.discharging_efficiency,
+                        charge_rates=electric_vehicle_config.charge_rates,
                         max_charge_power_w=electric_vehicle_config.max_charge_power_w,
                         min_soc_percentage=electric_vehicle_config.min_soc_percentage,
                         max_soc_percentage=electric_vehicle_config.max_soc_percentage,