Update discord's game status according to foobar2k's window title.

discordfb2k.js

/**
 * @file Updates Discord's game status according to foobar2k's window title.
 * @author TheBITLINK aka BIT <me@thebitlink.com>
 * @license MIT
 * 
 * To use:
 *  - Set foobar2k's window title to "%artist% - %title%" (Preferences -> Display -> Default User Interface)
 *  - Edit the line bellow with your discord user token
 *  - Run those commands (in the same folder discordfb2k.js is in):
 *    - npm install discord.js node-process-windows
 *    - node discordfb2k
 * 
 * Notes:
 *  - Node.js 7.8+ is required
 *  - You won't be able to see your own status, but others will
 *  - Don't set the update interval too low
 */
const Discord = require('discord.js')
const Windows = require('node-process-windows')

// Discord Token
const TOKEN = "mfa.."
// Update interval (seconds)
const INTERVAL = 10

let currentTitle
let update

// Update title
setInterval(() => Windows.getProcesses((err, ps) => {
  const f2k = ps.find(p => p.processName === 'foobar2000')
  if (f2k) {
    currentTitle = f2k.mainWindowTitle.replace(/\[foobar2000.*]/, '').trim()
  } else {
    currentTitle = undefined
  }
  if (update) update()
}), INTERVAL * 1000)

// Discord client
const client = new Discord.Client()

client.on('ready', () => {
  console.log(`Connected to Discord! (@${client.user.username}#${client.user.discriminator})`)
  update = async () => {
    if (!client.user.presence.game || client.user.presence.game.name !== currentTitle) {
      try {
        await client.user.setGame(currentTitle)
        console.log(`Set status to: ${currentTitle}`)
      } catch (e) {
        console.error(`Couldn't change status. (${e.message})`)
      }
    }
  }
})

client.on('error', err => {
  console.error(`Couldn't connect to Discord: ${e.message}.`)
})

client.login(TOKEN)