from flask import request
from marshmallow import ValidationError
from app.utils.logger import logger
from app.helpers.response_helper import ResponseHelper
from app.schemas.provide_loan import ProvideLoanSchema   

class ProvideLoanService:
    @staticmethod
    def process_request(data):
        """
        Process the ProvideLoan request.

        Args:
            data (dict): The request data.

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

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

            # Business logic - providing a loan
            response_data ={
                "requestId": "202111170001371256908",
                "transactionId": "Tr201712RK9232P115",
                "customerId": "CN621868",
                "accountId": "ACN8263457",
                "msisdn": "3451342",
                "resultCode": "00",
                "resultDescription": "Successful"
                }


            # return ResponseHelper.success(
            #     data=response_data,
            #     message="Loan successfully provided"
            # )

            return response_data

        except ValidationError as err:
            logger.error(f"Validation Error: {err.messages}")
            return ResponseHelper.error(
                message="Invalid input data",
                status_code=400,
                error=err.messages
            )

        except Exception as e:
            logger.error(f"An error occurred: {str(e)}", exc_info=True)
            return ResponseHelper.error(
                message="An internal error occurred",
                status_code=500,
                error=str(e)
            )