app.js

/* includes */
const Discord = require('discord.js');
const fs = require('fs');
const util = require('util');
const mongoose = require('mongoose');

/* defines & config */
const bot = new Discord.Client({
    fetchAllMembers: true,
    ws: {
        intents: 32511
    },
    partials: ['MESSAGE', 'CHANNEL', 'REACTION', "GUILD_MEMBER"]
});
const readdir = util.promisify(fs.readdir);
bot.events = new Discord.Collection();
bot.commands = new Discord.Collection();
bot.guildcache = new Discord.Collection();
bot.usercache = new Discord.Collection();
bot.data = require('./database/MongoDB.js');
bot.logger = require('./helpers/logger.js');
bot.tools = require('./helpers/tools.js');
bot.config = require('./config.json');
const Topgg = require('@top-gg/sdk')
bot.topgg = new Topgg.Api(bot.config.topgg)
bot.progressBar = (value, maxValue, size) => {
    const percentage = value / maxValue; // Calculate the percentage of the bar
    const progress = Math.round((size * percentage)); // Calculate the number of square caracters to fill the progress side.
    const emptyProgress = size - progress; // Calculate the number of dash caracters to fill the empty progress side.

    const progressText = '▇'.repeat(progress); // Repeat is creating a string with progress * caracters in it
    const emptyProgressText = '—'.repeat(emptyProgress); // Repeat is creating a string with empty progress * caracters in it
    const percentageText = Math.round(percentage * 100) + '%'; // Displaying the percentage of the bar

    const bar = '```[' + progressText + emptyProgressText + ']' + percentageText + '```'; // Creating the bar
    return bar;
};
async function initialize() {
    // load events

    let events = fs.readdirSync('./events/').filter(file => file.endsWith('.js'));
    for (let e of events) {
        let eventFile = require('./events/' + e);
        let eventName = e.split('.')[0];
        bot.logger.event(eventName + ' loaded.');
        bot.on(eventName, eventFile.bind(null, bot));
    }

    // load commands
    let categories = await readdir('./commands/');
    categories.forEach(c => {
        let commands = fs.readdirSync('./commands/' + c + '/').filter(file => (file.endsWith('.js')));
        for (const file of commands) {
            let commandFile = require('./commands/' + c + '/' + file);
            bot.commands.set(commandFile.name, commandFile);
        }
        bot.logger.cmd(c + ' - ' + commands.length + ' commands loaded.');
    });

    // init database
    mongoose.connect(bot.config.mongoDB, {
        useNewUrlParser: true,
        useUnifiedTopology: true
    }).then(() => {
        bot.logger.log('MongoDB connected.');
    }).catch((err) => {
        bot.logger.error('MongoDB error - ' + err);
    });

    // login bot
    bot.login(bot.config.token)
    let client = bot

    //errorhandling
    bot.on("disconnect", () => console.log("The connection to the bot has been disconnected"))
        .on("reconnecting", () => console.log("Connection will be reestablished"))
        .on("error", (e) => console.log("An error occurred: " + e))
        .on("warn", (info) => console.log(info))

    process.on("unhandledRejection", (err) => {
        console.error(err);
    })
   
}

initialize();