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aaserera / c**c半自动刷课工具

// ==UserScript==
// @name         c**c半自动刷课工具
// @namespace    https://openuserjs.org/Users/aaserera
// @version      4.9.0
// @description  从选定开头自动播放本章各小节课程
// @author       aaserera (generate by DeepSeek & ChatGPT)
// @match        https://zypt.cauc.edu.cn/OCEDU/action/studyFile/toStudySpoc
// @match        https://zypt-443.webvpn.cauc.edu.cn/OCEDU/action/studyFile/toStudySpoc
// @icon         https://www.google.com/s2/favicons?sz=64&domain=cauc.edu.cn
// @grant        none
// @license      MIT
// @homepageURL  https://openuserjs.org/scripts/aaserera/c**c半自动刷课工具
// @supportURL   https://openuserjs.org/scripts/aaserera/c**c半自动刷课工具/discussions
// ==/UserScript==

// ==OpenUserJS==
// @author aaserera
// ==/OpenUserJS==

//4.8版本更新：修复 monitorElementChanges 未定义 & 代码优化
//4.8.1版本单纯是为了测试更新功能
//4.9.0更新：增加vpn登录情况下的作用域
(function () {
  'use strict';

  const config = {
    checkInterval: 1000, // 资源检查间隔（1 秒）
    nextDelay: 4000, // 资源切换延迟（4 秒）
    resumeDelay: 1000, // 关闭弹窗后检测视频（1 秒）
    playRetry: 3, // 播放重试次数
    completeThreshold: 99.9, // 进度完成阈值
    minDuration: 10, // 最短有效时长(秒)
    logLevel: 'DEBUG', // 默认日志级别
  };

  let videoChecked = false;
  let lastChapterId = "";

  function monitorElementChanges() {
    const observer = new MutationObserver(() => checkCompletion());
    const fileList = document.querySelector('#ul_fileList');
    const chapterList = document.querySelector('.kjslist');

    if (fileList) observer.observe(fileList, {
      childList: true,
      subtree: true
    });
    if (chapterList) observer.observe(chapterList, {
      childList: true,
      subtree: true
    });

    log('👀 监听 DOM 变化', 'DEBUG');
  }

  /*********************
   * 监听文件列表变化
   *********************/
  function monitorFileListChanges() {
    const fileList = document.querySelector('#ul_fileList');
    if (fileList) {
      const observer = new MutationObserver(() => {
        if (!isVideoPlaying()) {
          log('🔄 检测到学习资源变化，重新尝试播放新视频', 'DEBUG');
          waitForVideoToLoad();
        }
        else {
          log('🎥 视频正在播放，跳过自动播放逻辑', 'DEBUG');
        }
      });
      observer.observe(fileList, {
        childList: true,
        subtree: true
      });
    }
  }

  function init() {
    log('📌 脚本初始化', 'DEBUG');

    monitorElementChanges();
    monitorFileListChanges();
    initPopupHandler();
    initCompletionDialogHandler();
    waitForVideoToLoad();

    log('🚀 脚本已启动', 'DEBUG');
  }

  /*********************
   * 关闭所有弹窗
   *********************/
  function closeAllPopups() {
    const popups = document.querySelectorAll('.layui-layer');
    popups.forEach(popup => {
      const closeButton = popup.querySelector('.layui-layer-close') || popup.querySelector('.layui-layer-btn0');
      if (closeButton) {
        closeButton.click();
        log('✅ 关闭弹窗', 'INFO');
      }
    });

    // 在短时间后检测视频状态
    setTimeout(checkVideoPaused, config.resumeDelay);
  }

  function checkVideoPaused() {
    const video = document.querySelector('video');
    if (video && video.paused) {
      log('🔄 检测到视频暂停，尝试恢复播放', 'DEBUG');
      tryPlayVideo(video);
    }
  }

  /*********************
   * 监听学习完成 & 时间提醒弹窗
   *********************/
  function initCompletionDialogHandler() {
    setInterval(closeAllPopups, config.checkInterval);
  }

  function initPopupHandler() {
    setInterval(closeAllPopups, config.checkInterval);
  }

  /*********************
   * 进度完成验证
   *********************/
  function checkCompletion() {
    const progress = getCurrentProgress();
    if (progress >= config.completeThreshold && !videoChecked) {
      videoChecked = true;
      log(`🎯 进度达标: ${progress}%`, 'INFO');
      handleCourseComplete();
    }
  }

  function getCurrentProgress() {
    try {
      const titleProgress = parseFloat(document.querySelector('#div_studyProgressBar').title.match(/[\d.]+/)[0]);
      const widthProgress = parseFloat(document.querySelector('.bfcurrentbg').style.width);
      return Math.max(titleProgress, widthProgress);
    }
    catch {
      return 0;
    }
  }

  function handleCourseComplete() {
    log('⏭️ 达到完成条件，准备跳转', 'INFO');
    setTimeout(() => {
      clickNextResource();
      videoChecked = false;
    }, config.nextDelay);
  }

  /*********************
   * 章节跳转
   *********************/
  function clickNextResource() {
    const currentItem = document.querySelector('#ul_fileList li.current');
    const allResources = [...document.querySelectorAll('#ul_fileList li')].filter(li => li.textContent);
    const currentIndex = allResources.indexOf(currentItem);

    if (currentIndex < allResources.length - 1) {
      const nextId = allResources[currentIndex + 1].getAttribute('moocstufileid');
      studyMoocSpoc.clickFile(nextId);
      log(`📂 跳转到：${allResources[currentIndex + 1].textContent.trim()}`, 'INFO');
    }
    else {
      log('📖 当前章节学习完成，尝试寻找下一个章节', 'DEBUG');
      setTimeout(clickNextChapter, 5000);
    }
  }

  function clickNextChapter() {
    const currentChapter = document.querySelector('.kjslist li a.currentChapterNode');
    const currentChapterItem = currentChapter?.closest('li');
    const nextChapterItem = currentChapterItem ? currentChapterItem.nextElementSibling : null;

    if (nextChapterItem) {
      const nextChapterId = nextChapterItem.getAttribute('chapterid');
      if (nextChapterId !== lastChapterId) {
        lastChapterId = nextChapterId;
        nextChapterItem.click();
        log('📖 跳转到下一个章节', 'INFO');
      }
    }
    else {
      log('🔄 当前已是最后一个章节，但仍然保持脚本运行', 'DEBUG');
    }
  }

  /*********************
   * 视频加载优化（减少启动延迟）
   *********************/
  function waitForVideoToLoad() {
    const video = document.querySelector('video');
    if (!video) {
      log('⏳ 未找到视频，等待 0.5 秒后重试...', 'DEBUG');
      setTimeout(waitForVideoToLoad, 500);
      return;
    }

    video.addEventListener('canplay', () => {
      log('✅ 视频可以播放，尝试播放', 'DEBUG');
      tryPlayVideo(video);
    });

    tryPlayVideo(video);
  }

  function tryPlayVideo(video) {
    if (isVideoPlaying()) {
      log('🎥 视频已经在播放，跳过自动播放', 'DEBUG');
      return;
    }

    let attempts = 0;

    function attemptPlay() {
      video.play().then(() => {
        log('✅ 视频自动播放成功', 'INFO');
      }).catch(() => {
        if (attempts < config.playRetry) {
          log(`❌ 播放失败，重试 ${attempts + 1}/${config.playRetry} 次`, 'DEBUG');
          attempts++;
          setTimeout(attemptPlay, 500);
        }
        else {
          log('❌ 自动播放失败，请手动点击播放', 'ERROR');
        }
      });
    }

    attemptPlay();
  }

  function isVideoPlaying() {
    const video = document.querySelector('video');
    return video && !video.paused && !video.ended && video.readyState > 2;
  }

  function log(message, level = 'DEBUG') {
    console.log(`[刷课助手] ${new Date().toLocaleTimeString()} [${level}] ${message}`);
  }

  if (document.readyState === 'complete') {
    init();
  }
  else {
    window.addEventListener('load', init);
  }
})();