//use node.js to run this
//steps through the message prompting for letter selection
const prompts = require('prompts');
const alphabet = {
  '.-': 'a',
  '-...': 'b',
  '-.-.': 'c',
  '-..': 'd',
  '.': 'e',
  '..-.': 'f',
  '--.': 'g',
  '....': 'h',
  '..': 'i',
  '.---': 'j',
  '-.-': 'k',
  '.-..': 'l',
  '--': 'm',
  '-.': 'n',
  '---': 'o',
  '.--.': 'p',
  '--.-': 'q',
  '.-.': 'r',
  '...': 's',
  '-': 't',
  '..-': 'u',
  '...-': 'v',
  '.--': 'w',
  '-..-': 'x',
  '-.--': 'y',
  '--..': 'z'
}

let message = '.-..--..-..-...--..-...-.--.-.-...-..--..-.--...-.-...-.-...--.-.-..--..-.-...-.-.-...-.-...--.-' //pompeo message - using q as last char
//let message = '.--......-...--.--.-------...--.--.---.-.-...-..' //where we go one we go all

let phrase = ''
let letter = ''

async function main(){
  const array = message.split('')
  for(let i=0,len=array.length;i<len;){
    const st = array[i]
    const nd = array[i] + array[i + 1]
    const rd = array[i] + array[i + 1] + array[i + 2]
    const th = array[i] + array[i + 1] + array[i + 2] + array[i + 3]
    //console.log({st, nd, rd, th})
    const stl = alphabet[st]
    const ndl = alphabet[nd]
    const rdl = alphabet[rd]
    const thl = alphabet[th]
    //console.log({stl, ndl, rdl, thl})
    const response = await prompts({
      type: 'number',
      name: 'value',
      message: `Pick a letter
      1: ${stl},
      2: ${ndl},
      3: ${rdl},
      4: ${thl},
      5: space`,
      validate: value => value < 1 || value > 5? 'Must be 1 - 4' : true
    });
    switch(response.value){
      case 1: letter = stl
        break;
      case 2: letter = ndl
        break;
      case 3: letter = rdl
        break;
      case 4: letter = thl
        break
      case 5: letter = ' '
    }
    if(response.value !== 5){
      i = i + response.value
    }
    phrase += letter
    console.log({phrase, i})
  }
}

main()