import { GuildMember, SlashCommandBuilder, Interaction } from 'discord.js';
import { getTextResponsePrettyPlease, randomWord, sendSegments, startGame } from '../lib/game';

const END_TEMPLATES = [
  'Alright! Here\'s the messages you all conjured:',
  'Here are the abominations you all have made:',
  'Time\'s up! Here\'s what you\'ve managed to achieve:',
  'That does it! Here\'s what you\'ve all cooked up together:'
];

module.exports = {
  data: new SlashCommandBuilder()
    .setName('markov')
    .setDescription('Play a Markov chain game')
    .addIntegerOption(option =>
      option
        .setName('context')
        .setRequired(false)
        .setDescription('Amount of words to show as context')
        .setMinValue(1)
        .setMaxValue(100)
    )
    .addIntegerOption(option =>
      option
        .setName('iterations')
        .setRequired(false)
        .setDescription('Amount of rounds to do')
        .setMinValue(1)
        .setMaxValue(100)),

  execute: async (interaction: Interaction, member: GuildMember) => {
    if (!interaction.isChatInputCommand()) return;
    
    const context = interaction.options.getInteger('context') || 3;
    const maxIterations = interaction.options.getInteger('iterations') || 10;

    startGame(interaction, member.user, 'Markov game', async (participants, channel) => {
      let sentences: string[][] = Array(participants.length).fill(0);
      sentences = sentences.map(() => []);
      let iterations = 0;

      // eslint-disable-next-line no-constant-condition
      while (true) {
        await Promise.all(
          participants.map(async (p, i) => {
            const sentence = sentences[(i + iterations) % sentences.length];
            const prompt = (`Continue the following sentence: [${iterations}/${maxIterations}]\n\n> _${context < sentence.length ? '…' : ''}${sentence.length > 0 ? sentence.slice(-context).join(' ') : `start a sentence... (try working with: “${randomWord()}”)`}_` + (iterations === 0 ? '\n\n**Send a message to continue**' : '')).slice(0, 2000);
            
            const resp = await getTextResponsePrettyPlease(p, prompt);
            sentence.push(...resp.split(' '));
          })
        );

        iterations++;

        if (iterations > maxIterations) {
          break;
        }
      }

      const endTemplate = END_TEMPLATES[Math.floor(Math.random() * END_TEMPLATES.length)];

      const segments = [
        endTemplate + '\n\n',
        ...sentences.map(sentence => '- ' + sentence.join(' ')),
        '\n\nThank you for participating :)'
      ];

      await sendSegments(segments, channel);
    });
  }
};