galactic-bot/structure/client/DiscordClient.js

const { Client } = require('discord.js');

const options = require('../../options.json');

const Registry = require('./Registry.js');
const EventHooker = require('./EventHooker.js');
const Dispatcher = require('./Dispatcher.js');
const Resolver = require('./Resolver.js');
const Logger = require('./Logger.js');
const TransactionHandler = require('./TransactionHandler.js');

const { Guild, User, Message } = require('../../structure/extensions/');
const { Command, Observer, Inhibitor, Setting } = require('../../structure/interfaces/');

class DiscordClient extends Client {

    constructor(options) {

        super(options.bot.clientOptions);
    
        this.registry = new Registry(this);
        this.eventHooker = new EventHooker(this);
        this.dispatcher = new Dispatcher(this);
        this.resolver = new Resolver(this);
        this.logger = new Logger(this);
        this.transactionHandler = new TransactionHandler(this);

        this._options = options;
        this._built = false;

    }

    async build() {

        if(this._built) return undefined;

        await super.login(this._options.bot.token);

        await this.registry.loadComponents('components/commands/', Command);
        await this.registry.loadComponents('components/observers', Observer);

        await this.dispatcher.dispatch();

        this._built = true;

    }

}

module.exports = DiscordClient;

const client = new DiscordClient(options);
client.build();

process.on("unhandledRejection", (error) => {
    console.error("Unhandled promise rejection:", error); //eslint-disable-line no-console
});