csdd.js

// ==UserScript==
// @name         New Userscript
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://e.csdd.lv/examp/
// @grant        none
// @require      https://code.jquery.com/jquery-3.3.1.min.js
// @require      https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js
// @require      https://cdn.emailjs.com/sdk/2.2.4/email.min.js
// @require      http://momentjs.com/downloads/moment.js
// ==/UserScript==

(function() {
    'use strict';
    var step = 0;
    var currentExamDate = moment("2018-10-04");

    getStep();
    switch(step) {
        case 1:
        applyForExam();
        break;
        case 2:
        selectLocation();
        break;
        case 3:
        setReason();
        break;
        case 4:
        setExamType();
        break;
        case 5:
        showAvailableDates();
        break;
        case 6:

        break;
        default:
        console.log("something went wrong")
    }

    // functions finds in which step we are
    function getStep() {
        var title = $(document).find('h2').text();
        if (title === "Pieteiktie eksāmeni:") {
            step = 1;
            console.log("Step 1 detected");
            return;
        }

        title = $(document).find('td.value').text();

        if (_.includes(title, "CSDD nodaļa:")) {
            step = 2;
            console.log("Step 2 detected");
            return;
        }

        if (_.includes(title, "Iemesls:")) {
            step = 3;
            console.log("Step 3 detected");
            return;
        }

        if (_.includes(title, "Eksāmena veids:")) {
            step = 4;
            console.log("Step 4 detected");
            return;
        }

        if (_.includes(title, "Eksāmena datums:")) {
            step = 5;
            console.log("Step 5 detected");
            return;
        }
    }

    function applyForExam() {
        $("#uniforma").find("#confirmNor").click();
    }

    function selectLocation() {
        $('#nodala option[value=1]').prop('selected', true);
        $("#uniforma").find("#find").click();
    }

    function setReason() {
        $("#uniforma").find("input#6").click();
        $("#uniforma").find("#find").click();
    }

    function setExamType() {
        $("#uniforma").find("input#3").click();
        $("#uniforma").find("#find").click();
    }

    function showAvailableDates() {
        var dates = $("#uniforma").find("#datums").find("option");
        _.forEach(dates, function(date) {
            var words = _.words($(date).text());
            console.log($(date).text());

            var newDate = moment(words[2] + "-" + words[1] + "-" + words[0]);

            if (newDate < currentExamDate && words[5] > 0) {
                console.log("Found a free spot");
                sendEmail(date);
            }
        });
        setTimeout(function(){
            goToStart();
        }, 1000 * 60 * 1);
    }

    function goToStart() {
        window.location.href = 'https://e.csdd.lv/examp/';
    }

    function sendEmail(date) {
        emailjs.init("user_9a6sRfO2h3HrZRelLFwQV");

        var template_params = {
            "text": $(date).text(),
        }

        var service_id = "default_service";
        var template_id = "alert";
        emailjs.send(service_id,template_id,template_params);
    }
})();