z-bot.js

"use strict";

process.title = 'Ziggurat Bot';
const version = '1.0 | 04/23/18 3:00 PM EST';
const version_notes = "Hello world! Created by BitBruce ♡";
const commands = "Commands: \n- help";

require('dotenv').config(); // Pulls env variables from hidden `.env` file

const Discord = require('discord.js');
const discordClient = new Discord.Client();
// const Mongo = require('./z-mongo.js');
// const Data = require('./z-data.js');

const prefix = '!'; // User input symbol
const msg_prefix = 'Ziggurat Bot: '; // outgoing message prefix
const msg_intro = '\n\n======= Ziggurat Bot Starting =======\n\n';
const msg_disconnect = '\n\n======= Ziggurat Bot Disconnecting =======\n\n';
const msg_error = '\nE R R O R : ';

const debug = false;

var bot;

/* Discord Client Functions */

// On ready
discordClient.on('ready', () => {
  console.log(msg_intro + msg_prefix + 'I am ready!');
  bot = discordClient.user;
});

// On disconnect
discordClient.on('disconnect', event => {
  var msg = msg_prefix;

  if (event.reason === 'Authentication failed.') {
    msg += event.reason + ' Supply api token in `.env`.';
  } else {
    if (debug) {
    msg += 'Client disconnected. Reason: ' + event.reason + '\n' +  event;
    } else {
      msg += 'Client disconnected. Reason: ' + event.reason;
    }
  }

  console.log(msg + msg_disconnect);
});

// On error
discordClient.on('error', error => {
  console.log(msg_prefix + msg_error + error.reason);
  process.exit(1);
});

// On message
discordClient.on('message', function(message) {
  if (message.author.bot) {
    // Prevent the bot from talking to itself!
  } else if (message.content.startsWith(prefix)) {
    console.log('Trimmed message: ' + trimMsg(message.content));
    processMessage(message);
  } else if (message.content == 'prefix' || message.content == 'help') {
    message.reply('The message prefix for the bot is: ' + prefix);
  } else {

  }
});

// On message deleted - Example
discordClient.on('messageDelete', (message) => {
    blastDeletedMessage(message);
});

/* Helper functions */

var blastDeletedMessage = function(message) {
  // var channel = discordClient.channels.find('id', ''); // insert id of channel, or programmatically find channels
  var channel = message.channel;
  console.log("Blasting deleted message to channel: {}", channel.id);

  var name = message.member.nickname || message.author.username;
  channel.send("Message deleted by " + name +"\n" + "Message: " + message.content)
  .then(message => console.log(`Deleted message: ${message.content}`))
  .catch(console.error);
};

/* Utility functions */

var trimMsg = function(msg) {
  return (msg.substring(prefix.length)).trim(); // Trim the post-prefix message
};

var processMessage = function(message) {
  var msg = trimMsg(message.content);
  if (msg == 'ping') {
    message.reply('pong!');
  } else if (msg == 'help' || msg == 'commands') {
    message.reply(commands);
  } else if (msg == 'version') {
    message.reply('Version: ' + version + '. Version notes: ' + version_notes);
  } else {
    // Do something with message. Maybe pass it to Dialogflow.
  }
};

/* Main */
var initialize = function() {
  console.log('Connecting...');
  discordClient.login(process.env.DISCORD_TOKEN); //Located in hidden .env file
};

(function() {
  initialize();
})();