main.js

'use strict';

const Bank = require('./bank.js');
const EventBus = require('./eventBus.js');

const FraudService = require('./services/fraud.js');
const DebitService = require('./services/debit.js');
const CreditService = require('./services/credit.js');
const NotificationService = require('./services/notifications.js');
const AuditService = require('./services/audit.js');

const accounts = require('./data/accounts.json');
const transactions = require('./data/transactions.json');

const bank = new Bank(accounts);
const bus = new EventBus();

const services = [
  new FraudService(bus, ['Commodus']),
  new DebitService(bus, bank),
  new CreditService(bus, bank),
  new NotificationService(bus, ['Antoninus Pius']),
  new AuditService(bus),
];

const showBalances = () => {
  console.log('--- Balances ---');
  for (const [name] of bank.accounts) {
    const balance = bank.getBalance(name);
    console.log(`${name}: ${balance}`);
  }
};

const runTransfer = (context) => {
  const { from, to, amount } = context;
  console.log(`\nTransfer requested: ${from} -> ${to} (${amount})`);
  bus.send('TransferRequested', { ...context });
  showBalances();
};

services.forEach((service) => {
  console.log(`Service: ${service.constructor.name} is ready`);
});

console.log('\nInitial balances:');
showBalances();

for (const transaction of transactions) {
  runTransfer(transaction);
}