shuffle.js

'use strict';

const _ = require('lodash');
const moment = require('moment');

const now = moment().hour(11).minute(30).second(0);

function group(number, name) {
  return { number, name };
}

const clearance = 2; // minutes
const duration = 10 + clearance; // minutes

const groups = [
  group(1, 'Framework, librerías y patrones'),
  group(2, 'Archivos y conceptos'),
  group(3, 'Principios fundamentales'),
  group(4, 'Patrones de la programación funcional'),
  group(5, 'Anti-patrones'),
  group(6, 'Refactoring'),
  group(7, 'Degradación del código'),
];

const shuffled = _.shuffle(groups).map((g, index) => _.merge(g, {
  startAt: now.clone().add(index * duration, 'minutes').format('HH:mm'),
  finishAt: now.clone().add((index + 1) * duration, 'minutes').format('HH:mm'),
}));

console.log(JSON.stringify(shuffled, null, 4));