// ==UserScript==
// @name         ik001xa智慧树/知到
// @namespace    http://tampermonkey.net/
// @version      0.2.0
// @description  智慧树自用版，本人很懒，不定时更新
// @author       ik001xa智慧树/知到
// @match        *://studyvideoh5.zhihuishu.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    var box = document.createElement('div');
    box.style.position = 'fixed';
    box.style.top = '20px';
    box.style.right = '380px';
    box.style.padding = '15px';
    box.style.backgroundColor = '#fff';
    box.style.border = '5px solid #ccc';
    box.style.zIndex = '9999';
    box.style.transform = 'scale(1.2)';
    document.body.appendChild(box);

    var muteButton = document.createElement('button');
    muteButton.textContent = '静音';
    muteButton.className = 'button';
    muteButton.style.transform = 'scale(0.9)';
    muteButton.addEventListener('click', function() {
        toggleMute();
    });
    box.appendChild(muteButton);

    var playPauseButton = document.createElement('button');
    playPauseButton.textContent = '播放视频';
    playPauseButton.className = 'button';
    playPauseButton.style.transform = 'scale(0.9)';
    playPauseButton.addEventListener('click', function() {
        togglePlayPause();
    });
    box.appendChild(playPauseButton);

    var autoPlayButton = document.createElement('button');
    autoPlayButton.textContent = '自动播放1';
    autoPlayButton.className = 'button';
    autoPlayButton.style.transform = 'scale(0.9)';
    autoPlayButton.addEventListener('click', function() {
        toggleAutoPlay();
    });
    box.appendChild(autoPlayButton);

    var speedButton = document.createElement('button');
    speedButton.textContent = '8倍速';
    speedButton.className = 'button';
    speedButton.style.transform = 'scale(0.9)';
    speedButton.addEventListener('click', function() {
        updateSpeedElement();
    });
    box.appendChild(speedButton);

    var autoSelectButton = document.createElement('button');
    autoSelectButton.textContent = '自动选择';
    autoSelectButton.className = 'button';
    autoSelectButton.style.transform = 'scale(0.9)';
    autoSelectButton.addEventListener('click', function() {
        toggleAutoSelect();
    });
    box.appendChild(autoSelectButton);

    function toggleMute() {
        var videoElement = document.querySelector('video');
        if (videoElement) {
            videoElement.muted = !videoElement.muted;
            muteButton.textContent = videoElement.muted ? '取消静音' : '静音';
        }
    }

    function togglePlayPause() {
        var videoElement = document.querySelector('video');
        if (videoElement) {
            if (videoElement.paused) {
                videoElement.play();
                playPauseButton.textContent = '暂停视频';
            } else {
                videoElement.pause();
                playPauseButton.textContent = '播放视频';
            }
        }
    }

    function toggleAutoPlay() {
        var videoElement = document.querySelector('video');
        if (videoElement) {
            if (autoPlayButton.textContent === '自动播放1') {
                videoElement.muted = true;
                videoElement.play();
                muteButton.textContent = '取消静音';
                playPauseButton.textContent = '暂停视频';
                autoPlayButton.textContent = '自动播放2';
            } else {
                videoElement.muted = false;
                videoElement.pause();
                muteButton.textContent = '静音';
                playPauseButton.textContent = '播放视频';
                autoPlayButton.textContent = '自动播放1';
            }
        }
    }

    function updateSpeedElement() {
        var speedElement = document.querySelector('div.speedTab.speedTab15[rate="1.5"]');
        if (speedElement) {
            speedElement.setAttribute('rate', '8');
            speedElement.textContent = 'X 8';
        }
        muteMediaElements();
    }

    function toggleAutoSelect() {
        var optionElement = document.querySelector('li.topic-item');
        if (optionElement) {
            var iconElement = optionElement.querySelector('.icon.topic-option');
            var isSelected = iconElement.classList.contains('selected');
            if (isSelected) {
                iconElement.classList.remove('selected');
                autoSelectButton.textContent = '自动选择';
            } else {
                iconElement.classList.add('selected');
                autoSelectButton.textContent = '取消自动选择';
                selectOptionA();
            }
        }
    }

    function selectOptionA() {
        var optionElement = document.querySelector('div.item-topic');
        if (optionElement) {
            optionElement.click();
        }
    }
       var watermark = document.createElement('div');
           watermark.textContent = 'ik001xa—智慧树';
           watermark.style.position = 'absolute';
           watermark.style.bottom = '1px';
           watermark.style.right = '10px';
           watermark.style.fontSize = '13px';
           watermark.style.color = 'blue';
          box.appendChild(watermark);
    // 添加样式
    var style = document.createElement('style');
    style.textContent = '.button { margin-right: 12px; }';
    document.head.appendChild(style);

})();