geostorm-ost/index.js

Play Geostorm OST from terminal.

const stream = require('youtube-audio-stream');
const Decoder = require('lame').Decoder;
const Speaker = require('speaker');
const animation = require('chalk-animation');
const chalk = require('chalk');
const fs = require('fs');


function Tracker(str) {
  // 1. some data
  var i = 0, anm = null;
  var trk = null;
  
  function parse() {
    // a. format is "bla bla bla <min>:<sec>"
    const z = [];
    for(var ln of str.split(/\r?\n/g)) {
      if(!ln) continue;
      var tim = ln.match(/\d+:\d+/)[0].split(':');
      var min = parseInt(tim[0], 10), sec = parseInt(tim[1], 10);
      z.push({'time': min*60+sec, 'text': ln});
    }
    return z;
  };

  function log() {
    // a. display a track
    if(anm) anm.stop();
    anm = animation.rainbow(trk[i++].text);
  };
  
  function stop() {
    // a. stop track display
    if(anm) anm.stop();
  };

  // 2. setup track display
  trk = parse(str);
  for(var t=0, T=trk.length; t<T; t++)
    setTimeout(log, trk[t].time*1000);
  return {parse, log, stop};
};


// I. setup
const url = 'https://www.youtube.com/watch?v=NzaJUTUxzrk';
const head = fs.readFileSync(__dirname+'/head.txt', 'utf8');
const body = fs.readFileSync(__dirname+'/body.txt', 'utf8');
const foot = fs.readFileSync(__dirname+'/foot.txt', 'utf8');
const tracker = Tracker(body);
const speaker = new Speaker();
console.log(chalk.cyan(head));


// II. start playing
var ost = stream(url).pipe(Decoder()).pipe(speaker);
ost.on('finish', () => {
  tracker.stop();
  console.log(chalk.blue(foot));
});