app.js

// load config from .env file
require("dotenv").config();

// turn fs.readdir into a promise
const readdir = require("util").promisify(require("fs").readdir);
// fancy loggings
const logger = require("./utils/logger.js");
// start the client
const client = require("./utils/client.js");
// initialize command loader
const handler = require("./utils/handler.js");
const sound = require("./utils/soundplayer.js");

// registers stuff and connects the bot
async function init() {
  logger.log("info", "Starting esmBot...");
  // register commands and their info
  const commands = await readdir("./commands/");
  const soundStatus = await sound.checkStatus();
  logger.log("info", `Attempting to load ${commands.length} commands...`);
  for (const commandFile of commands) {
    logger.log("info", `Loading command ${commandFile}...`);
    try {
      await handler.load(commandFile, soundStatus);
    } catch (e) {
      logger.error(`Failed to register command ${commandFile.split(".")[0]}: ${e}`);
    }
  }

  // register events
  const events = await readdir("./events/");
  logger.log("info", `Attempting to load ${events.length} events...`);
  for (const file of events) {
    logger.log("info", `Loading event ${file}...`);
    const eventName = file.split(".")[0];
    const event = require(`./events/${file}`);
    client.on(eventName, event);
  }

  // login
  client.connect();

  // post to DBL
  if (process.env.NODE_ENV === "production") {
    require("./utils/dbl.js");
  }

  // handle ctrl+c and pm2 stop
  process.on("SIGINT", () => {
    logger.log("info", "SIGINT detected, shutting down...");
    client.editStatus("dnd", {
      name: "Restarting/shutting down..."
    });
    for (const command of commands) {
      handler.unload(command);
    }
    client.disconnect();
    require("./utils/database.js").connection.close(() => {
      process.exit(0);
    });
  });
}

// launch the bot
init();