CommunityUsedModerator.js

/*
CommunityUsedModerator Discord Bot
Harry Dang

Discord bot created for the private Discord server Anti GTP GTP Club for private use

TODO:
customize help menu
add quarantine radio schedule command
add response for invalid command
make ig embed prettier
support ig videos maybe
support ig multi img posts
fix ig embed to work better with async calls

Made following Discord.js guide and An Idiot's Guide tutorial
*/

// require the Node's native file system module
const fs = require('fs');
// require the dotenv module
const dotenv = require('dotenv');
dotenv.config();
const prefix = process.env.PREFIX;
// require the discord.js module
const Discord = require('discord.js');
// requre the config file
// const { prefix } = require('./config.json');

// create a new Discord client
const client = new Discord.Client();
client.commands = new Discord.Collection();

// initializes array of js files for commands
const commandFiles = fs.readdirSync('./Commands').filter(file => file.endsWith('.js'));

for (const file of commandFiles) {
  const command = require(`./Commands/${file}`);
  // set a new item in the Collection
  // with the key as the command name and the value as the exported module
  client.commands.set(command.name, command);
}

const { embedIG } = require('./util/ig.js');

// initializaes cooldown
const cooldowns = new Discord.Collection();

// initialize muted members
client.muted = new Discord.Collection();

// when the client is ready, run this code
// this event will only trigger one time after logging in
client.once('ready', () => {
  console.log('Ready!');
});

client.on('message', (message) => {
  if (message.content.startsWith('https://www.instagram.com/p/')) {
    embedIG(message);
  }
  // exit if message doesn't contain prefix or is made by another bot
  else if (!message.content.startsWith(prefix) || message.author.bot) { return; }

  // parses input message
  const args = message.content.slice(prefix.length).trim().split(/ +/);
  const commandName = args.shift().toLowerCase();

  // exit if invalid command
  // TODO: add response
  const command = client.commands.get(commandName)
    || client.commands.find(cmd => cmd.aliases && cmd.aliases.includes(commandName));
  if (!command) return;

  // arguments handling
  if (command.args && !args.length) {
    let response = 'no arguments were given';
    if (command.usage) {
      response += `\nExpected usage: \`${prefix}${command.name} ${command.usage}\``;
    }
    return message.reply(response);
  }

  // guild handling
  if (command.guildOnly && message.channel.type === 'dm') {
    return message.reply('this command must be used in a server, cannot be executed in DMs');
  }

  // cooldown handling
  if (!cooldowns.has(command.name)) {
    cooldowns.set(command.name, new Discord.Collection());
  }
  const now = Date.now();
  const timestamps = cooldowns.get(command.name);
  const cooldownAmount = (command.cooldown || 3) * 1000;
  if (timestamps.has(message.author.id)) {
    const expirationTime = timestamps.get(message.author.id) + cooldownAmount;

    if (now < expirationTime) {
      const timeLeft = (expirationTime - now) / 1000;
      return message.reply(`please wait ${timeLeft.toFixed(1)} more second(s) before reusing the \`${command.name}\` command.`);
    }
  }
  timestamps.set(message.author.id, now);
  setTimeout(() => timestamps.delete(message.author.id), cooldownAmount);

  // execute command
  try {
    command.execute(message, args);
  }
  catch (error) {
    console.log('\n');
    console.log(now);
    console.error(error);
    message.reply('there was an error trying to execute that command!');
    message.channel.send(error.name + ': ' + error.message);
  }
});

// login to Discord with your app's token
client.login(process.env.TOKEN);

// keep awake, for repl.it hosting
const http = require('http');
const server = http.createServer((req, res) => {
  res.writeHead(200);
  res.end('ok');
});
server.listen(3000);