from flask import request, jsonify
from marshmallow import ValidationError
from app.utils.logger import logger
from app.helpers.response_helper import ResponseHelper
from app.schemas.loan_information import LoanInformationSchema   

class LoanInformationService:
    @staticmethod
    def process_request(data):
        """
        Process the Loan Information request.

        Args:
            data (dict): The request data.

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

            # Validate input data using the imported schema
            schema = LoanInformationSchema()
            validated_data = schema.load(data)  # Raises ValidationError if invalid

            # Simulated processing logic
            response_data = {
                "customerId": "CN621868",
                "loans": [
                    {
                    "debtId": "123456789",
                    "loanDate": "2019-10-18 14:26:21.063",
                    "dueDate": "2019-11-20 14:26:21.063",
                    "currentLoanAmount": 8500.0,
                    "initialLoanAmount": 10000.0,
                    "defaultFee": 0.0,
                    "continuousFee": 0.0,
                    "productId": "101"
                    }
                ],
                "resultCode": "00",
                "resultDescription": "Successful"
            }


            # return ResponseHelper.success(
            #     data=response_data,
            #     message="Loan information retrieved 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