import random
from flask import request, jsonify
from marshmallow import ValidationError
from app.utils.logger import logger
from app.api.helpers.response_helper import ResponseHelper
from app.api.schemas.collect_loan import CollectLoanSchema, CollectLoanResponseSchema
from app.config import Config

"""
Process the CollectLoan request.

Args:
    data (dict): The request data.

Returns:
    tuple: JSON response and status code.
"""
class CollectLoanService:
    @staticmethod
    def process_request(data):
        try:
            logger.info("Processing CollectLoan request")

            # Validate input data using CollectLoanSchema
            schema = CollectLoanSchema()
            validated_data = schema.load(data)

            amountForCollection =  validated_data.get("collectAmount")
            productId = validated_data.get("productId")
            customerId = validated_data.get("customerId")
            amountCollected = amountForCollection
            responseDescr= "Loan Collection Successful EMULATOR"
            fullDescription= "Loan collection completed successfully EMULATOR"
            responseMessage= "Loan collection completed successfully EMULATOR"
            interestCollected = amountForCollection * 0.03 
            lienAmount = validated_data.get("lienAmount", 0)

            isValid = not (
                int(customerId[-1]) in [2, 7, 9]
            )
            if Config.MIN_AMOUNT_FOR_COLLECTION <= amountForCollection <= Config.MAX_AMOUNT_FOR_COLLECTION:
                amountCollected = amountForCollection if lienAmount >= amountForCollection else 0
                responseDescr = "Partial Loan Collection Successful EMULATOR"
                fullDescription = "Partial Loan collection completed successfully EMULATOR"
                responseMessage = "Partial Loan collection completed successfully EMULATOR"

                response_data = {
                    "transactionId": validated_data.get("transactionId"),
                    "fbnTransactionId": validated_data.get("fbnTransactionId"),
                    "debtId": validated_data.get("debtId"),
                    "customerId": validated_data.get("customerId"),
                    "accountId": validated_data.get("accountId"),
                    "productId": validated_data.get("productId"),
                    "amountCollected": amountCollected,
                    "interestCollected": interestCollected,
                    "penalChargeCollected": 0,
                    "lienAmount": lienAmount if amountCollected == 0 else 0,
                    "countryId": validated_data.get("countryId"),
                    "comment": validated_data.get("comment", "Testing CollectionLoanRequest EMULATOR"),
                    "responseCode": "00",
                    "responseDescr": responseDescr,
                    "fullDescription": fullDescription,
                    "responseMessage": responseMessage
                }

            else:
                response_data = {
                    "transactionId": validated_data.get("transactionId"),
                    "fbnTransactionId": validated_data.get("fbnTransactionId"),
                    "debtId": validated_data.get("debtId"),
                    "customerId": validated_data.get("customerId"),
                    "accountId": validated_data.get("accountId"),
                    "productId": validated_data.get("productId"),
                    "amountCollected": amountCollected,
                    "interestCollected": interestCollected,
                    "penalChargeCollected": 0,
                    "amountCollected": amountCollected,
                    "countryId": validated_data.get("countryId"),
                    "comment": validated_data.get("comment", "Testing CollectionLoanRequest EMULATOR"),
                    "responseCode": "00",
                    "responseDescr": responseDescr,
                    "fullDescription": fullDescription,
                    "responseMessage": responseMessage
                }

            # Validate and serialize the response data
            response_schema = CollectLoanResponseSchema()
            result = response_schema.dump(response_data)

            return jsonify(result), 200

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

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