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zruF / Cuneros-Transaktionsuebersicht

// ==UserScript==
// @name         Cuneros-Transaktionsuebersicht
// @version      1.0
// @description  Zeigt eine Übersicht der Transaktionen an.
// @author       zruF
// @match        https://www.cuneros.de/bank/transactions/
// @grant        none
// @copyright 2019, Julian Ueber (www.herrueber.de)
// @require http://code.jquery.com/jquery-3.3.0.min.js
// @license MIT
// ==/UserScript==

// ==OpenUserJS==
// @author zruF
// @collaborator zruF
// ==/OpenUserJS==

(function() {
    var div = document.createElement('div'), header = document.createElement('div'), headerh = document.createElement('h4'), body = document.createElement('div');
    $(header).addClass("card-header");
    $(headerh).text("Bilanz");
    $(header).append(headerh);
    $(body).addClass("card-body");
    $(div).addClass("card");
    $(div).append(header);
    $(div).append(body);
    $(div).insertBefore($(".card").last());
    window.addEventListener('load', function() {
        updateTransactions(body);
    }, false);
})();

function updateTransactions(body){
    var func = function getTransactions(){
        $(body).empty();
        var positive = 0, negative = 0;
        $('#transaction-table tr').each(function() {
            var c = $(this).find("td").eq(0).find("span").html();
            c = c != undefined ? +c.replace(/\./g,"") : 0;
            if(c != undefined && c < 0) negative += c;
            if(c != undefined && c > 0) positive += c;
        });
        var color = "green";
        if(positive + negative < 0) color = "red";
        var bilanzen = ['Einnahmen:<span style="color:green;"><b> ' + prettify(positive) + '</b></span> Cuneros'
            ,'Ausgaben:<span style="color:red;"><b> ' + prettify(negative) + '</b></span> Cuneros'
            ,'Gesamt:<span style="color:' + color + ';"><b> ' + prettify(positive + negative) + '</b></span> Cuneros'];
        $(body).append("<ul><li>"+bilanzen.join`</li><li>` + "</li>");
    };
    $('#transaction-table').bind("DOMSubtreeModified", func);
    func();
}
function prettify(n){
    var arr = [...(""+n)];
    arr.splice((""+n).length-3,0,".");
    if((""+n)[0] != '-' && (""+n).length > 6 || (""+n)[0] == '-' && (""+n).length > 7) arr.splice((""+n).length-6,0,".");
    return arr.join``;
}