import Tone from 'tone'
import WebMidi from 'webmidi'
import 'nexusui'
import keys from './lib/keys'
import kalimba from './lib/kalimba'
import scales from './lib/scales'
import { mod, browser, requestAudioContext, ftom, mtof, tap } from './lib/util'

import * as data from './data'

const nx = window.nx

let midi

WebMidi.enable(midi_ready)

function midi_ready(err) {
  if (err) {
    console.error('webmidi failed to initialize')
    return
  }
  if (!WebMidi.outputs.length) {
    console.error('no MIDI output found')
  }
  console.log(WebMidi.inputs)
  console.log(WebMidi.outputs)
  midi = WebMidi.outputs[0]
}

function play(index){
  const freq = scales.current().index(index)
  let midi_note = ftom(freq)
  let cents = midi_note % 1
  if (cents > 0.5) {
    midi_note += 1
    cents -= 1
  }
  cents *= 2
  midi_note = Math.floor(midi_note)
  // console.log(freq, midi_note, cents.foFixed(1))
  if (midi) {
    midi.playNote(Tone.Frequency(Math.floor(midi_note), "midi").toNote(), "all", { duration: 90000 / Tone.Transport.bpm.value })
    // cents
    midi.sendPitchBend(cents, "all")
  } else {
    kalimba.play(freq)
  }
}
nx.onload = () => requestAudioContext(ready)

function ready () {
	nx.widgets.scale.choices = scales.names()
	nx.widgets.scale.init()
	nx.widgets.scale.on('*', e => scales.pick(e.value))

	// nx.widgets.shiftUp.on('*', tap(shiftUp))

  nx.colorize('#f4d142')

	Tone.Transport.bpm.value = 108
	nx.widgets.tempo.min = 10
	nx.widgets.tempo.max = 1000
	nx.widgets.tempo.set({ value: 108 })
	nx.widgets.tempo.on('*', () => Tone.Transport.bpm.value = nx.widgets.tempo.val.value )
  Tone.Transport.start()
}

keys.listen(play)