Haha-Yes/commands/admin/ban.js

const { Command } = require('discord-akairo');

class BanCommand extends Command {
    constructor() {
        super('ban', {
           aliases: ['ban'],
           category: 'admin',
           args: [
               {
                   id: 'member',
                   type: 'member'
               },
               {
                   id: 'reasons',
                   type: 'string'
               }
           ],
           clientPermissions: ['BAN_MEMBERS'],
           userPermissions: ['BAN_MEMBERS'],
           channelRestriction: 'guild',
           description: {
            content: 'Ban user',
            usage: '[@user]',
            examples: ['@user big dumb dumb']
        }
        });
    }

    async exec(message, args) {
        let member = args.member;
        let reasons = args.reasons;

        if(member == this.client) 
            return message.channel.send('Cant ban me fool')
        if(!reasons)
            reasons = 'Nothing have been specified'
        if(member.id === message.author.id)
            return message.channel.send("Why would you ban yourself ?")

        member.ban(`Banned by : ${message.author.username} for the following reasons : ${reasons}`)
            .then(() => message.reply(`${member.user.username} was succesfully banned with the following reasons "${reasons}".`))
    }
}

module.exports = BanCommand;