bot.js

const fs = require('fs');
const Discord = require('discord.js');

const BotConfig = require('./core/botConfig');
const botConfig = BotConfig.getInstance();

// Config non-existent, hint the user
if (!botConfig.exists()) {
  console.log("You need to create a bot configuration file in the root directory => (./config.json). You can check the readme for more information.");
  return;
}

const { prefix, token } = botConfig.getDefaultConfig();
// const StringSimiliarity = require('./core/stringSimiliarity');
const commandDefinitions = require('./commands/definitions.json');

// Init the discord client
const client = new Discord.Client();
client.commands = new Discord.Collection();

// Initialize all commands of the command directory
const commandFiles = fs.readdirSync('./commands').filter(file => file.endsWith('.js'));
for (const file of commandFiles) {
  const Command = require(`./commands/${file}`);
  let fileNameStripped = file.split(".")[0];

  const initCommand = new Command(fileNameStripped).getCommand();
	client.commands.set(initCommand.name, initCommand);
}


/**
 * Only after this, will bot start reacting
 */
client.on('ready', () => {
  console.log('Bot is ready. Listening to messages!');
});


client.on('message', message => {

  // message not from bot/not a prefix command used
  if (!message.content.startsWith(prefix) || message.author.bot) return;

  const args = message.content.slice(prefix.length).split(/ +/);
  const command = args.shift().toLowerCase();

    // Uncomment for debugging
  console.log("Command: " + command);
  console.log("Arguments: " + JSON.stringify(args));

  // Iterate over commands defined in ./definitions.json
  let fileNames = Object.keys(commandDefinitions);
  let commandFound = false;
  let commandNames = [];
  for (let fileName of fileNames) {
    let commandDef = commandDefinitions[fileName];

    if (command == commandDef.name) {
      client.commands.get(command).execute(message, args);
      commandFound = true;
      break;
    }

    commandNames.push(commandDef.name);
  }


  // Command doesen't match any definitions, give help to user by calculating string similarity
  if (!commandFound) {
    
    // String.similiar();

  }
});


client.login(token);