import Tone from 'tone'
import output from './output'

const oscillators = {}

let lastPlayed
function play (freq) {
  const osc = oscillators[freq] = oscillators[freq] || {}
  if (!osc.el) {
    osc.el = new Tone.Oscillator(freq, "sine")
    osc.el.connect(output)
  }
  osc.el.start()
  osc.playing = true
  lastPlayed = osc
  return osc
}
function pause (freq) {
  if (!oscillators[freq]) return
  const osc = oscillators[freq] = oscillators[freq] || {}
  if (osc.el) osc.el.stop()
  osc.playing = false
  return osc
}

export default { play, pause, oscillators }