discordeno/examples/nodejs/Managers/EventManager.js

const fs = require("fs");
const path = require("path");
const resolveFolder = (folderName) => path.resolve(__dirname, ".", folderName);

const EventEmitter = require("events");

class EventManager extends EventEmitter {
  constructor() {
    super();
    this.cache = new Map();
    this.allEvents = {};
  }

  load(options = {}) {
    const eventsFolder = resolveFolder("../events");
    let i = 0;
    fs.readdirSync(eventsFolder).map(async (file) => {
      if (!file.endsWith(".js")) return;
      i++;
      const fileName = path.join(eventsFolder, file);
      const event = require(fileName);
      const eventName = file.split(".")[0];

      this.allEvents[`${eventName}`] = (...args) => {
        this.emit(eventName, ...args);
        return event(...args);
      };
    });
    return this.allEvents;
  }
}
module.exports = EventManager;