// ==UserScript==
// @name         VUT elerning fix
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Disables animation of presentations
// @author       KAJIK
// @match        https://moodle.vut.cz/*
// @updateURL    https://karlserver.mooo.com/files/download.php?file=.%2FVUT+elerning+fix-1.0.user.js
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // Function to simulate a full user interaction
    function simulateFullClick(element) {
        // Create and dispatch 'mousedown' event
        const mousedownEvent = new MouseEvent('mousedown', {
            bubbles: true,
            cancelable: true,
            view: window
        });
        element.dispatchEvent(mousedownEvent);

        // Create and dispatch 'mouseup' event
        const mouseupEvent = new MouseEvent('mouseup', {
            bubbles: true,
            cancelable: true,
            view: window
        });
        element.dispatchEvent(mouseupEvent);

        // Create and dispatch 'click' event
        const clickEvent = new MouseEvent('click', {
            bubbles: true,
            cancelable: true,
            view: window
        });
        element.dispatchEvent(clickEvent);
    }

    // Function to set the progress bar to maximum
    function setProgressBarToMax() {
        const progressBar = document.querySelector('.progressbar__progress');
        const thumb = document.querySelector('.progressbar__thumb');

        if (progressBar && thumb) {
            // Get the width of the progress bar
            const progressBarRect = progressBar.getBoundingClientRect();
            const maxX = progressBarRect.right; // Far right of the progress bar
            const minX = progressBarRect.left;  // Far left of the progress bar

            // Simulate dragging the thumb to the maximum position
            const mousedownEvent = new MouseEvent('mousedown', {
                bubbles: true,
                cancelable: true,
                clientX: minX,
                clientY: progressBarRect.top + (progressBarRect.height / 2)
            });
            thumb.dispatchEvent(mousedownEvent);

            const mousemoveEvent = new MouseEvent('mousemove', {
                bubbles: true,
                cancelable: true,
                clientX: maxX,
                clientY: progressBarRect.top + (progressBarRect.height / 2)
            });
            thumb.dispatchEvent(mousemoveEvent);

            const mouseupEvent = new MouseEvent('mouseup', {
                bubbles: true,
                cancelable: true,
                clientX: maxX,
                clientY: progressBarRect.top + (progressBarRect.height / 2)
            });
            thumb.dispatchEvent(mouseupEvent);
        }
    }

    // Function to check the button and click if aria-pressed is true
    function checkButton() {
        const button = document.querySelector('.universal-control-panel__button.universal-control-panel__button_play-pause');
        if (button) {
            const ariaPressed = button.getAttribute('aria-pressed');

            if (ariaPressed === 'true') {
                simulateFullClick(button);

                // Set progress bar to maximum after play/pause interaction
                setTimeout(() => {
                    setProgressBarToMax();
                }, 500);
            }
        }
    }

    // Monitor changes to the button using a MutationObserver
    const observer = new MutationObserver((mutationsList) => {
        for (const mutation of mutationsList) {
            if (mutation.type === 'attributes' && mutation.attributeName === 'aria-pressed') {
                checkButton();
            }
        }
    });

    // Wait for the button to appear in the DOM
    function waitForButton() {
        const button = document.querySelector('.universal-control-panel__button.universal-control-panel__button_play-pause');
        if (button) {
            // Observe the button for attribute changes
            observer.observe(button, { attributes: true });

            // Initial check
            checkButton();
        } else {
            setTimeout(waitForButton, 1000);
        }
    }

    // Start the initial check
    waitForButton();
})();