'use strict';

class RandomBot {
  constructor() {
    this.writePhrases = [
      'Suddenly, a mysterious figure appeared from the shadows.',
      'The ground began to shake violently beneath their feet.',
      'In the distance, an eerie sound echoed through the valley.',
      'A bright light flashed, blinding everyone momentarily.',
      'The ancient artifact started glowing with an otherworldly energy.',
      'A gust of wind carried whispers of a forgotten warning.',
      'Somewhere nearby, a door creaked open on its own.'
    ];

    this.banterPhrases = [
      "Did anyone else hear that?",
      "I have a good feeling about this!",
      "Not sure what's happening, but I'm excited!",
      "Anyone else getting hungry?",
      "Remember when we used to play simple games?",
      "What's the worst that could happen?",
      "I wonder if there are cookies in this game.",
      'Do bots dream of electric sheep?',
      "Is this thing on?",
      "I'm having a great time, how about you?"
    ];
  }

  Write() {
    const randomIndex = Math.floor(Math.random() * this.writePhrases.length);
    return this.writePhrases[randomIndex];
  }

  /**
   * Vote for one of the supplied choices. Choices are objects of the form
   * { index, entry_text } where `index` is the real entry index; return
   * that index (never the position in the filtered list).
   */
  Vote(storySoFar, choices) {
    const list = Array.isArray(choices) ? choices : [];
    if (!list.length) return null;
    const pick = list[Math.floor(Math.random() * list.length)];
    if (pick && Number.isInteger(pick.index)) return pick.index;
    return Number.isInteger(pick) ? pick : 0;
  }

  Banter() {
    const randomIndex = Math.floor(Math.random() * this.banterPhrases.length);
    return this.banterPhrases[randomIndex];
  }
}

module.exports = RandomBot;