global.fetch = require ('node-fetch');
var AmazonCognitoIdentity = require('amazon-cognito-identity-js');
var readline = require('readline');

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

var confirmedUsername = 'XXXXXXXXXXXXX';
var confirmedUserPassword = 'XXXXXXXX'

var authenticationData = {
  Username : confirmedUsername,
  Password : confirmedUserPassword,
};

var authenticationDetails = new AmazonCognitoIdentity.AuthenticationDetails(authenticationData);

var poolData = {
  UserPoolId : 'XXXXXXXXXXXXXXXXX',
  ClientId : 'XXXXXXXXXXXXXXX'
};

var userPool = new AmazonCognitoIdentity.CognitoUserPool(poolData);

var userData = {
  Username : confirmedUsername,
  Pool : userPool
};

var cognitoUser = new AmazonCognitoIdentity.CognitoUser(userData);

// code for simulating mfa

cognitoUser.authenticateUser(authenticationDetails, {
  onSuccess: function (result) {
    alert('authentication successful!')
  },
  onFailure: function(err) {
      alert(err);
  },
  mfaRequired: function(codeDeliveryDetails) {
    rl.question('Please enter the MFA code...\n', (answer) => {
      console.log('Thank you for your valuable feedback:', answer);
      cognitoUser.sendMFACode(answer, {
        onSuccess: (result) => {
          console.log(result);
          rl.close();
        }, onFailure: (err) => {
          console.log(err);
          rl.close();
        }
      });
    });
  }
});