index.js

const fs = require('fs');
const { Client, Collection, Intents } = require('discord.js');
const { token } = require('./config.json');

const client = new Client({
  intents: [
    Intents.FLAGS.GUILDS,
    Intents.FLAGS.GUILD_MESSAGES,
    Intents.FLAGS.GUILD_MESSAGE_REACTIONS,
  ],
});

client.commands = new Collection();
const commandFiles = fs
  .readdirSync('./commands')
  .filter((file) => file.endsWith('.js'));

for (const file of commandFiles) {
  const command = require(`./commands/${file}`);
  client.commands.set(command.data.name, command);
}

const eventFiles = fs
  .readdirSync('./events')
  .filter((file) => file.endsWith('.js'));
for (const file of eventFiles) {
  const event = require(`./events/${file}`);
  if (event.once) {
    client.once(event.name, (...args) => event.execute(...args));
  } else {
    client.on(event.name, (...args) => event.execute(...args));
  }
}

client.on('interactionCreate', async (interaction) => {
  if (!interaction.isCommand()) return;

  const command = client.commands.get(interaction.commandName);

  if (!command) return;

  try {
    await command.execute(interaction);
  } catch (error) {
    console.error(error);
    return interaction.reply({
      content: 'There was an error while executing this command!',
      ephemeral: true,
    });
  }
});

client.on('messageCreate', (message) => {
  if (message.content.includes('kirby') && !message.author.bot) {
    console.log('kirby found.');
    // message.channel.send(`Kirby found.`);
    message.react('👍');
  }
});

client.login(token);