import keys from './lib/keys'
import color from './lib/color'
import kalimba from './lib/kalimba'

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

const add_on = 0
const mul_on = 1.0
const add_off = 0.1
const mul_off = 0.9

let dragging = false

for (var i = 0; i < ws; i++) {
  for (var j = 0; j < hs; j++) {
	  add(i, j)
	}
}

function add (x, y) {
  const i = Math.max(x, y) + 1
	const j = Math.min(x, y) + 1
  const div = document.createElement('div')
	div.style.left = (x * s) + 'px'
	div.style.top = (y * s) + 'px'
	div.style.backgroundColor = color(i/j, add_off, mul_off)
	if (x < y) div.style.opacity = 0.5
	div.innerHTML = `<div>${i}<\/div><div>\/</div><div>${j}<\/div>`
	div.addEventListener('mouseenter', function(){
	  div.style.backgroundColor = color(i/j, add_on, mul_on)
		if (dragging) {
	    kalimba.play( root * i/j )
		}
	})
	div.addEventListener('mouseleave', function(){
	  div.style.backgroundColor = color(i/j, add_off, mul_off)
	})
	div.addEventListener('click', function(){
	  kalimba.play( root * i/j )
	})
	document.body.appendChild(div)
}

document.addEventListener('mousedown', () => { dragging = true })
document.addEventListener('mouseup', () => { dragging = false })

keys.listen(function(index){
  // const freq = scales.current().index(index)
  // document.body.style.backgroundColor = color( index / scales.current().scale.length )
  kalimba.play(freq)
})