GSYE-886: validate ev charger preferred charging power

gsy_framework/validators/ev_charger_validator.py

@@ -3,6 +3,7 @@
 from gsy_framework.validators.base_validator import BaseValidator
 from gsy_framework.enums import GridIntegrationType
 from gsy_framework.validators.utils import validate_range_limit
+from gsy_framework.read_user_profile import UserProfileReader, InputProfileTypes
 
 EVChargerSettings = ConstSettings.EVChargerSettings
 
@@ -14,6 +15,7 @@ class EVChargerValidator(BaseValidator):
     def validate(cls, **kwargs):
         cls._validate_grid_integration(**kwargs)
         cls._validate_max_power(**kwargs)
+        cls._validate_preferred_charging_power(**kwargs)
 
     @staticmethod
     def _validate_grid_integration(**kwargs):
@@ -49,3 +51,30 @@ def _validate_max_power(cls, **kwargs):
             max_limit,
             {"misconfiguration": [f"{name} should be between {min_limit} & {max_limit}."]},
         )
+
+    @classmethod
+    def _validate_preferred_charging_power(cls, **kwargs):
+        """Validate preferred charging power parameter."""
+        preferred_charging_power = kwargs.get("preferred_charging_power")
+        maximum_power_rating_kW = kwargs.get("maximum_power_rating_kW")
+
+        if preferred_charging_power is None:
+            return
+
+        # Convert to profile if needed
+        preferred_power_profile = UserProfileReader().read_arbitrary_profile(
+            InputProfileTypes.IDENTITY, preferred_charging_power
+        )
+
+        # Validate that all absolute values are within maximum power rating
+        for time_slot, power_value in preferred_power_profile.items():
+            if maximum_power_rating_kW and abs(power_value) > maximum_power_rating_kW:
+                raise GSyDeviceException(
+                    {
+                        "misconfiguration": [
+                            f"Absolute value of preferred_charging_power ({abs(power_value)} kW "
+                            f"at {time_slot}) cannot exceed maximum_power_rating_kW "
+                            f"({maximum_power_rating_kW} kW)."
+                        ]
+                    }
+                )