radioCrystals

//15 EXERCISE = FUNCTIONS/More Exercise/04. Radio Crystals.js
radioCrystals = (input) => {
  'use strict'

  const cut = (x) => x / 4
  const lap = (x) => x * 0.8
  const grind = (x) => x - 20
  const etch = (x) => x - 2
  const xRay = (x) => x + 1

  const print = (operation, thickness) => {
    if (thickness > 0)
      console.log(`${operation} x${thickness}\nTransporting and washing`)
  }

  let cuts = 0,
    laps = 0,
    grinds = 0,
    etchs = 0

  for (let i = 1; i < input.length; i++) {
    let currentThickness = input[i]
    let targetThickness = input[0]

    console.log(`Processing chunk ${currentThickness} microns`)

    while (currentThickness / 4 >= targetThickness - 1) {
      currentThickness = Math.floor(cut(currentThickness))
      cuts++
    }
    print('Cut', cuts)

    while (currentThickness * 0.8 >= targetThickness - 1) {
      currentThickness = Math.floor(lap(currentThickness))
      laps++;
    }
    print('Lap', laps)

    while (currentThickness - 20 >= targetThickness - 1) {
      currentThickness = grind(currentThickness)
      grinds++
    }
    print('Grind', grinds)

    while (currentThickness - 2 >= targetThickness - 1) {
      currentThickness = etch(currentThickness)
      etchs++
    }
    print('Etch', etchs)

    if (currentThickness === targetThickness - 1) {
      currentThickness = xRay(currentThickness)
      console.log(`X-ray x1`)
      console.log(`Finished crystal ${currentThickness} microns`)
    }
    else
      console.log(`Finished crystal ${currentThickness} microns`)
  }
}