from flask import session, jsonify
from app.utils.logger import logger
from app.helpers.response_helper import ResponseHelper
from app.schemas.eligibility_check import EligibilityCheckSchema
from marshmallow import ValidationError

class EligibilityCheckService:
    @staticmethod
    def process_request(data):
        """
        Process the EligibilityCheck request.

        Args:
            data (dict): The request data.

        Returns:
            dict: A standardized response.
        """
        try:
            logger.info("Processing EligibilityCheck request")

            # Validate input data using Schema
            schema = EligibilityCheckSchema()
            validated_data = schema.load(data) # Raises an error if invalid

            # Example: Validate data, perform calculations, etc.
            if not data:
                return ResponseHelper.error("Invalid input data", status_code=400)

            # Simulate processing
            response_data = {
                "customerId": "CN621868",
                "transactionId": "Tr201712RK9232P115",
                "msisdn": "3451342",
                "eligibleOffers": [
                    {
                    "minamount": 5000,
                    "maxamount": 20000,
                    "productId": 101,
                    "offerid": 101,
                    "Tenor": 30
                    },
                    {
                    "minamount": 20000,
                    "maxamount": 50000,
                    "productId": 102,
                    "offerid": 102,
                    "Tenor": 60
                    }
                ],
                "resultCode": "00",
                "resultDescription": "Successful"
            }


            # Return a success response
            # return ResponseHelper.success(
            #     data=response_data,
            #     message="Eligibility check completed successfully"
            # )

            return response_data
        except ValidationError as err:
            logger.error(f"Validation Error: {err.messages}")
            return jsonify({
                "message": "Validation exception"
                }) , 422

        except Exception as e:
            logger.error(f"An error occurred: {str(e)}", exc_info=True)
            return jsonify({
                "message": "Internal Server Error"
                }) , 500