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nicoeg / Binance IOTA to DKK converter

// ==UserScript==
// @name         Binance IOTA to DKK converter
// @namespace    http://tampermonkey.net/
// @version      0.91
// @updateURL https://openuserjs.org/meta/nicoeg/Binance_IOTA_to_DKK_converter.meta.js
// @copyright 2017, nicoeg (https://openuserjs.org/users/nicoeg)
// @description  try to take over the world!
// @author       You
// @match        https://www.binance.com/tradeDetail.html*
// @grant        none
// @require      https://cdnjs.cloudflare.com/ajax/libs/jquery-animateNumber/0.0.14/jquery.animateNumber.min.js
// @license MIT
// ==/UserScript==

(function() {
    'use strict';

    var dkkRate = null;
    $('.orderform-type').first().append('<span style="float:right;" id="ms"></span>');
    $('.depthbg .f-right').remove();
    $('.depthbg .f-left').css({ 'display': 'flex', 'justify-content': 'space-between'});
    $('.depthbg .f-left').append('<strong class="transMoney" id="onedkk"></strong>');
    $('#chart_container').append('<div id="dkk"><span></span>,-</div>');
    $('#chart_container').css({positition: 'relative'});
    $('#dkk').css({
        'position': 'absolute',
        'fontSize': '200px',
        'top': '0',
        'bottom': '0',
        'left': '0',
        'right': '0',
        'margin': 'auto',
        'textAlign': 'center',
        'fontWeight': 'bold',
        'opacity': '0.3',
        'display': 'none',
        'justifyContent': 'center',
        'alignItems': 'center',
    });

    $.get('https://api.fixer.io/latest?symbols=DKK&base=usd', null, function(res) {
        dkkRate = res.rates.DKK;

        getPrice(dkkRate);

        setInterval(function() {
            getPrice(dkkRate);
        }, 1000);
    });

    function getPrice(dkkRate) {
        var coins = parseFloat($('.trade-div:nth-child(2) .f-fr').first().text().replace('IOTA Balance: ', ''));
        var dollar = parseFloat($('.transMoney').html().replace('$', ''));
        var danish = Math.round(coins * dollar * dkkRate * 100) / 100;

        if (!dollar) {
            return;
        }

        $('#onedkk').html(Math.round(dollar * dkkRate * 100) / 100 + ',-');
        if (coins) {
            $('#dkk').fadeIn().css({display: 'flex'});
            $('#dkk span').prop('number', $('#dkk span').html()).animateNumber({ number: danish });
            $('#ms').html(Math.round(danish / (18.95 / 5)) + ' mælkesnitter');
        }
    }
})();