// @flow
import {
  spend,
  validateAccountNumber,
  validatePaymentAmount,
  type PaymentAmount,
} from './accounting';

type Request = {
  body: {
    accountNumber: number,
    amount: number,
  },
};

function calculateProfit(amount: PaymentAmount) {
  return amount / 10;
}

export default function handleRequest(req: Request) {
  const accountNumber = validateAccountNumber(req.body.accountNumber);
  const amount = validatePaymentAmount(req.body.amount);
  spend(accountNumber, amount);

  // const { accountNumber, amount } = req.body;
  // spend(amount, accountNumber);
}