const vowels = 'aeiou';
const consonants = 'bcdfghjklmnpqrstvwxyz';

const randOf = (collection) => {
  return () => collection[Math.floor(Math.random() * collection.length)];
};

const randVowel = randOf(vowels);
const randConsonant = randOf(consonants);

module.exports = class PhoneticKeyGenerator {

  createKey(keyLength) {
    let text = '';
    let chooseConsonant = Math.random() < 0.5; // Randomly start with consonant or vowel

    for (let i = 0; i < keyLength; i++) {
      text += chooseConsonant ? randConsonant() : randVowel();
      chooseConsonant = !chooseConsonant; // Alternate between consonant and vowel
    }

    return text;
  }

};