index.js

const {Collection, Client, Discord} = require("discord.js");
const fs = require("fs")
const bot = new Client({
    disableEveryone: true
});
const config = require('./config.json');
const token = config.token;
const prefix = config.prefix;
bot.prefix = "c!"
bot.commands = new Collection();
bot.aliases = new Collection();
bot.catergories = fs.readdirSync("./commands/");
["command"].forEach(handler =>{
    require(`./handlers/${handler}`)(bot);
})
const activities_list = [
    "BETA | c!help", 
    "Version 0.7 | c!help",
    `stop looking at this status NOW`, 
    "use c!help already"
];

bot.on('guildMemberAdd', (member) => {
    let chx = db.get(`wChannel_${member.guild.id}`)

    if(!chx === null) {
        return;
    }

    let embed = new Discord.MessageEmbed()
    .setAuthor(member.user.username + "has joined the server!")
    .setColor(1752220)
    .setThumbnail(member.user.displayAvatarURL())
    .setDescription(`Welcome to the server, **${member.user.username}**! Be sure to check the rules and have fun!`)

    bot.channels.cache.get(chx).send(embed)
})

bot.on('ready', () => {
    setInterval(() => {
        const index = Math.floor(Math.random() * (activities_list.length - 1) + 1);
        bot.user.setActivity(activities_list[index],{ type: "WATCHING" });
    }, 10000); 
    console.log(`${bot.user.username} is now online!`)
}); 

bot.on('message', async message=>{
    if(message.author.bot) return;
    if(!message.content.startsWith(prefix)) return;
    if(!message.guild) return;
    if(!message.member) message.member = await message.guild.fetchMember(message);
    const args = message.content.slice(prefix.length).split(/ +/);
    const cmd = args.shift().toLowerCase();
    if(cmd.length == 0 ) return;
    const command = bot.commands.get(cmd)
    if(!command) command = bot.commands.get(bot.aliases.get(cmd));
    if(command) command.run(bot,message,args);
})

bot.login(process.env.token)