DiscordMusicCreationDebug.js

import { Attachment } from 'discord.js'
import puppeteer from 'puppeteer'
import { splitMessage } from '../utils.js'

export default async (msg) => {
  const input = splitMessage(msg)

  let target
  if (input.args.length > 0) {
    const target = await msg.channel.fetchMessage(input.args[0])

    if (!target) {
      msg.reply('Send me a valid message ID dickhead.')
    }

    // const recording = await getRecording()
    // const music = recordingToMusic(recording)
    // const attachment = new Attachment(music)
    // msg.reply(attachment)
  } else {
    target = msg.channel.messages.last(2)[0]

    const recording = await getRecording()
    const attachment = new Attachment(Buffer.from(recording), 'test.mp3')
    msg.reply(attachment)
  }
}

async function getRecording (input) {
  const browser = await puppeteer.launch({
    headless: false,
    args: ['--no-sandbox']
  })
  const page = await browser.newPage()

  await page.addScriptTag({ path: './node_modules/tone/build/tone.js' })

  let output = await page.evaluate(async () => {
    const Tone = window.Tone

    const output = await Tone.Offline((Transport) => {
      var osc = new Tone.Oscillator().toMaster()
      Transport.schedule((time) => {
        osc.start(time).stop(time + 0.1)
      }, 1)
      Transport.start(0.2)
    }, 4)

    return [...output.toMono().toArray()]
  })

  // await browser.close()

  return output
}