client.js

const Discord = require('discord.js');
const util = require('apex-util');
const { isAdmin } = require('./botUtils.js');

// If production server, set default debug mode to production setting
if (process.env.NODE_ENV === 'production' && !process.env.DEBUG_MODE) process.env.DEBUG_MODE = 0;

const client = new Discord.Client();
let toggle = false;
let interval = 0;

// Pre-load controllers
const controllers = require('./controllers')();

// Alert when ready
client.on('ready', () => {
  util.log('Bot Online and Ready and willing to go!', 0);
});

// Listen for messages
client.on('message', (message) => {

  // Create a ToS message for new members
  const newMessage = message;
  newMessage.content = message.type === 'GUILD_MEMBER_JOIN' ? '!terms' : newMessage.content;

  // Check for ! prefix on message to ensure it is a command
  if (newMessage.content.charAt(0) === '!') {
    util.log('Command message received', newMessage.content, 0);

    // Build basic help string
    let helpString = 'v1.4.0 Discovered Commands:\n\n\t**<> - Required Item\t\t[] - Optional Item**';

    // Process message against every controller
    Object.keys(controllers).forEach((key) => {
      // Instantiate the controller
      const controllerInstance = new controllers[key](newMessage);
      util.log('Controller instance', controllerInstance, 5);
      // Runs commands after constructor is called
      controllerInstance.run();

      // Loop through commands if help command and add to string
      if (newMessage.content.toLowerCase() === '!help') {
        Object.keys(controllerInstance.commands).forEach((commandKey) => {
          const commandInstance = controllerInstance.commands[commandKey];
          // Check if command should be shown in help menu
          if (commandInstance.showWithHelp) {
            if (commandInstance.adminOnly && isAdmin(newMessage.member)) {
              helpString += `\n\n \`${commandInstance.example}\` **- Admin Only** \n\t ${commandInstance.description}`;
            } else if (commandInstance.adminOnly && !isAdmin(newMessage.member)) {
              helpString += '';
            } else {
              helpString += `\n\n \`${commandInstance.example}\` \n\t ${commandInstance.description}`;
            }
          }
        });
      }
    });

    // If help command called, display string
    if (newMessage.content.toLowerCase() === '!help') {
      newMessage.reply(helpString);
    }
  }

  // Listens for the $loop command and repeats a message every X seconds
  if (newMessage.content.startsWith("!loop")) {
    // Grab the message string and dissect it for the time, in seconds, and string to be repeated
    let result = newMessage.content.substr(newMessage.content.indexOf(" ") + 1);
    let result2 = result.substr(result.indexOf(" ") + 1);
    result = result.split(" ");
    result = Number(result[0]);
    util.log(result);
    util.log(result2);

    // Check if the pre-existing toggle is true or false
    // If the toggle is true, then set the toggle to false and turn off the loop
    if (toggle !== false) {
      clearInterval(interval);
      newMessage.channel.send("Loop is off");
      toggle = false;
    } else if (toggle !== true) {
      // If the toggle is false, set it to true and check that the criteria for the command
      // is correct.
      if ((typeof result == 'number') && (result >= 5)) {
        if (result2.length > 0) {
          interval = setInterval(function () {
            newMessage.channel.send(result2)
          }, (result * 1000));
          newMessage.channel.send("Loop is now on");
          toggle = true;
        } else {
          newMessage.channel.send("please enter a message");
        }
      } else {
        newMessage.channel.send("please input a time in seconds and make it greater than or equal to 5");
      }
    }
  }

});

// Listen out for new users to the discord
client.on('guildMemberAdd', (member) => {
  // Add new welcome message to general
  const mainChannel = member.guild.channels.find('name', 'general');
  mainChannel.send(`Hi, ${member}. It's nice to meet you!`);
});

// Listen out for members that leave the discord
client.on('guildMemberRemove', (member) => {
  // Add a message for someone leaving the discord
  const mainChannel = member.guild.channels.find('name', 'general');
  mainChannel.send(`${member} has left... it was nice knowing you! ;-;`);
});



client.login(process.env.TOKEN);