dsabot/index.js

const Discord = require('discord.js');
const bot = new Discord.Client();
const mysql = require('mysql'); 
const prefix = '!';

var db = mysql.createConnection({
  host     : 'remotemysql.com',
  port     : '3306',
  user     : 'tftipudgeE',
  password : 'GYKju7YA1p',
  database : 'tftipudgeE'
});

db.connect((err) => {
    if(err){
        throw err;
    }
    console.log('MySql connected...')
});

bot.on('message', (message) =>{

    //command manager
    if (!message.content.startsWith(prefix) || message.author.bot) return; 

    const args = message.content.slice(prefix.length).split(' ');
    const command = args.shift().toLowerCase();

    //dice:
    if(command === 'roll') {
        if (!args.length == 3) {
            return message.reply(`Du hast die Würfel nicht korrekt angegeben.`);
        }

        else if(!isNaN(args[0]) && !isNaN(args[2]) && args[0] > 0 && args[2] > 0) {
            var roll = [];
            for (let i = 0; i < args[0]; i++) {
                a = Math.floor(Math.random() * args[2]) + 1;
                roll.push(a);
            }
            message.reply('Deine Würfe(' + args[0] + 'W' + args[2] + '): ' + roll.join(', ') + '.');
        } else {
            return message.reply(`Du hast die Würfel nicht korrekt angegeben.`);
        }

    }

    //create money 'account'
    if(command == 'create'){
        db.query('SELECT * FROM DSAGeld WHERE userName = ' + '"' + message.author.tag + '"', function(err, row) { //the row is the user's data
            if(row.length < 1) {
                db.query('INSERT INTO `DSAGeld` (`userName`, `GD`,`ST`, `BH`, `EK`) VALUES (' + '"' + message.author.tag + '"' + ', 0, 0, 0, 0)');
                message.reply('Dein Eintrag wurde registriert.')
            } else if(row) {
                message.reply('Dein Eintrag existiert bereits.')
            }
        });
    }

    //add money
    if(command === 'add') {
        if(!isNaN(args[0]) && (args[1] === 'GD' || args[1] === 'ST' || args[1] === 'BH' || args[1] === 'EK')) {
            db.query('SELECT * FROM DSAGeld WHERE userName = ' + '"' + message.author.tag + '"', function(err, row) { //the row is the user's data
            if(row && err) {
                message.reply('Es gab einen Fehler.')
            }
            if(row.length < 1) { //if the user is not in the database
                message.reply('Es existiert kein Eintrag für dich füge ihn mit !create hinzu.');
            } else { //if the user is in the database
                if(args[1] === 'GD') {
                    var n = parseInt(row[0].GD, 10) + parseInt(args[0], 10);
                } else if(args[1] === 'ST') {
                    var n = parseInt(row[0].ST, 10) + parseInt(args[0], 10);
                } else if(args[1] === 'BH') {
                    var n = parseInt(row[0].BH, 10) + parseInt(args[0], 10);
                } else if(args[1] === 'EK') {
                    var n = parseInt(row[0].EK, 10) + parseInt(args[0], 10);
                }
                
                db.query('UPDATE DSAGeld SET' + '`' + args[1] + '`' + ' = (' + n + ') WHERE userName = ' + '"' + message.author.tag + '"');
                db.query('SELECT * FROM DSAGeld WHERE userName = ' + '"' + message.author.tag + '"', function(err, row) { //the row is the user's data
                        message.reply(args[0] + args[1] + ' hinzugefügt, du hast: ' + row[0].GD + 'GD, ' + row[0].ST + 'ST, ' + row[0].BH + 'BH, ' + row[0].EK + 'EK.')
                    });
            }
        });
        }
    }

    //remove money
    if(command === 'remove') {
        if(!isNaN(args[0]) && (args[1] === 'GD' || args[1] === 'ST' || args[1] === 'BH' || args[1] === 'EK')) {
            db.query('SELECT * FROM DSAGeld WHERE userName = ' + '"' + message.author.tag + '"', function(err, row) { //the row is the user's data
            if(row && err) {
                message.reply('Es gab einen Fehler.')
            }
            if(!row) { //if the user is not in the database
                message.reply('Es existiert kein Eintrag für dich füge ihn mit !create hinzu.');
            } else { //if the user is in the database
                if(args[1] === 'GD') {
                    var n = parseInt(row[0].GD, 10) - parseInt(args[0], 10);
                } else if(args[1] === 'ST') {
                    var n = parseInt(row[0].ST, 10) - parseInt(args[0], 10);
                } else if(args[1] === 'BH') {
                    var n = parseInt(row[0].BH, 10) - parseInt(args[0], 10);
                } else if(args[1] === 'EK') {
                    var n = parseInt(row[0].EK, 10) - parseInt(args[0], 10);
                }
                
                if(n >= 0) {
                    db.query('UPDATE DSAGeld SET' + '`' + args[1] + '`' + ' = (' + n + ') WHERE userName = ' + '"' + message.author.tag + '"');
                    db.query('SELECT * FROM DSAGeld WHERE userName = ' + '"' + message.author.tag + '"', function(err, row) { //the row is the user's data
                        message.reply(args[0] + args[1] + ' abgezogen, du hast: ' + row[0].GD + 'GD, ' + row[0].ST + 'ST, ' + row[0].BH + 'BH, ' + row[0].EK + 'EK.')
                    });
                } else if(n < 0) {
                    message.reply('du hast nicht genügend ' + args[1] )
                }    
            }
        });
        }
    }

    //show money

    if(command === 'show') {
        db.query('SELECT * FROM DSAGeld WHERE userName = ' + '"' + message.author.tag + '"', function(err, row) { //the row is the user's data
            message.reply('du hast: ' + row[0].GD + ' GD, ' + row[0].ST + ' ST, ' + row[0].BH + ' BH, ' + row[0].EK + ' EK.' )
        }
    );}
});

bot.login('NjkwMjIxODMwMTk5NDQzNDgy.XnPXvg.w3zGhtCtjzfM2CJ-yiOvuDWT3cw');