import Tone from 'tone'

import Sampler from './lib/sampler'

import draw from './draw'
import keys from './lib/keys'
import color from './lib/color'
import mouse from './lib/mouse'

import { Hall } from './lib/hall'

import {
  browser, requestAudioContext,
  randint, randrange, choice, clamp, lerp, dist, shuffle,
  isMobile,
} from './lib/util'

const root = 440
const s = 50
const w = window.innerWidth
const h = window.innerHeight
const ws = w/s, hs = h/s

const HALLWAY_LENGTH = 147
const SPEAKER_COUNT = 16

let notes = [299, 336, 374, 399, 449, 498, 561, 598].map(i => i/2)
notes = notes.concat(notes.map(i => i/2))
notes = notes.concat(notes.map(i => i*2))
notes = shuffle(notes)

let samplers = {}
let sampler

requestAudioContext( () => {
  samplers.smash = new Sampler('samples/smash/g{}.mp3', 12)
  // samplers.glass = new Sampler('samples/glass/0{}Particle.mp3', 20)
  // samplers.kalimba = new Sampler('samples/kalimba/380731__cabled-mess__sansula-08-c-raw.wav', 10)
  samplers.choice = (m,n) => {
    const r = Math.random()
    if (r < m) return samplers.smash
    if (r < m+n) return samplers.kalimba
    return samplers.glass
  }
  Tone.Buffer.on('load', function(){
    console.log('all buffers are loaded.')
    redraw()
  })
})


const hall = new Hall ({
  length: HALLWAY_LENGTH,
  speakers: SPEAKER_COUNT,
})

function redraw(){
  draw.clear()
}

keys.listen(index => {
  // trigger(Math.random(), ((index+7) % SPEAKER_COUNT) / SPEAKER_COUNT, 0, samplers.smash)
  const sample = samplers.smash.choice()
  const buf = sample.players[0]._buffer.get()
  if (! buf) return
  const pcm = buf.getChannelData(0)
  const sr = buf.sampleRate
  const duration = buf.duration
  console.log(buf)
  console.log(duration.toFixed(2) + " s.")
  draw.clear()
  draw.waveform(pcm)
  draw.spectrum(pcm)
})

mouse.register({
  down: (x, y) => {
    redraw()
  },
  move: (x, y, dx, dy) => {
  },
  up: (x, y) => {
  },
})

let timeout, px = 0, py = 0
function play(x, y){
}
function trigger(x, y, t, sampler){
  t = t || 0
  t += Tone.now()
  sampler = sampler || last_dist > 40
  ? samplers.choice(0.2, 0.2)
  : samplers.choice((1-y) * 0.2, y*0.02)
  const freq = notes[Math.floor(x * notes.length)]  
  const speaker = hall.play(sampler, y, freq, x, t)

  draw.triangle(
    lerp(x, 0, 1) * window.innerWidth, 
    lerp(y, 0, 1) * window.innerHeight - 20,
    40
  )
}