// ==UserScript==
// @name         🍀重庆医科大学|使用说明：http://doc.zhanyc.cn/pages/cqykdx/
// @namespace    free
// @version      1.1
// @description  当前是免费版本，只包含了列表自动打开、解除视频播放限制功能。如需自动下一集、自动换课程、全自动无人值守等高级功能可升级付费版本|接各类脚本开发、代挂任务，微信：zhanyc_cn 个人网站：http://doc.zhanyc.cn
// @include    *://*cqmu.edu.cn*
// @include    *://*.cqmu.edu.cn/*
// @grant       GM_getValue
// @grant       GM_setValue
// @grant       GM_deleteValue
// @grant       window.close
// @run-at      document-end
// @require http://libs.baidu.com/jquery/2.0.0/jquery.min.js

// @antifeature  payment
// @license Creative Commons
// ==/UserScript==
(function () {
  let $jq = $;
  unsafeWindow.$jq = $;
  let docUrl = "http://doc.zhanyc.cn/pages/cqykdx/";
  let isDev = false;

  let xyb = {
    pageData: {
      videoTimer: null,
      videoCheckTimer: null,
      waitIndexArr: [],
    },
    // 悬浮引流面板
    showFloatingPanel() {
      if ($(".xyb-float-panel").length > 0) return;
      let panelHtml = `
        <div class="xyb-float-panel" style="position:fixed;left:10px;top:10px;z-index:2147483647;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:8px;box-shadow:0 4px 15px rgba(0,0,0,0.3);padding:12px 16px;min-width:280px;max-width:360px;font-family:microsoft yahei,sans-serif;color:#fff;">
          <button class="xyb-panel-close" style="position:absolute;top:4px;right:8px;background:none;border:none;cursor:pointer;font-size:18px;color:#fff;padding:0;line-height:1;">&times;</button>
          <div style="font-size:15px;font-weight:bold;margin-bottom:8px;border-bottom:1px solid rgba(255,255,255,0.3);padding-bottom:6px;">🍀 重庆医科大学脚本</div>
          <div style="font-size:13px;line-height:1.6;margin-bottom:6px;">
            <div>✅ 列表自动打开</div>
            <div>✅ 解除视频暂停限制</div>
          </div>
          <div class="xyb-panel-status" style="font-size:13px;padding:6px 8px;background:rgba(0,0,0,0.2);border-radius:4px;margin-bottom:6px;min-height:20px;">脚本准备就绪</div>
          <div style="font-size:12px;line-height:1.5;background:rgba(255,255,255,0.15);border-radius:4px;padding:8px;margin-bottom:6px;">
            <div style="font-weight:bold;color:#ffd700;font-size:13px;">🔥 一次付费 · 永久使用 · 免费维护</div>
            <div>如需使用全功能版本，请通过地址安装付费版本购买授权后可使用</div>            
            <div>✅ 5倍速</div>
            <div>✅ 自动下一集</div>            
            <div>✅ 自动换课程</div>            
            <div>✅ 全自动无人值守</div>          
            <div>✅ 永久授权</div>
            <div style="margin-top:4px;"><a href="${docUrl}" target="_blank" style="color:#ffd700;text-decoration:underline;font-weight:bold;">👉 点击查看付费版本</a></div>
          </div>
          <div style="font-size:12px;color:rgba(255,255,255,0.8);border-top:1px solid rgba(255,255,255,0.2);padding-top:6px;">
            接各类脚本开发、代挂、网站小程序开发工作<br/>微信：<span style="color:#ffd700;font-weight:bold;">zhanyc_cn</span>
          </div>
        </div>
      `;
      $("body").append(panelHtml);
      $(".xyb-panel-close").on("click", function () {
        $(".xyb-float-panel").remove();
      });
    },
    updateStatus(msg) {
      let $panel = $(".xyb-float-panel");
      if ($panel.length > 0) {
        $panel.find(".xyb-panel-status").text(msg);
      }
    },
    // 初始化
    async init() {
      console.log("%c xyb init", "background:rgb(0,0,0);color:#fff");
      xyb.showFloatingPanel();
      await xyb.waitUntil(() => $("body").length > 0);
      xyb.routeByUrl(location.href);
      // URL变更检测
      let lastUrl = location.href;
      setInterval(() => {
        if (lastUrl != location.href) {
          lastUrl = location.href;
          // 清理定时器
          if (xyb.pageData.videoTimer) {
            clearInterval(xyb.pageData.videoTimer);
            xyb.pageData.videoTimer = null;
          }
          if (xyb.pageData.videoCheckTimer) {
            clearTimeout(xyb.pageData.videoCheckTimer);
            xyb.pageData.videoCheckTimer = null;
          }
          xyb.pageData.waitIndexArr.forEach(idx => clearInterval(idx));
          xyb.pageData.waitIndexArr = [];
          xyb.routeByUrl(location.href);
        }
      }, 500);
    },
    // 路由
    async routeByUrl(url) {
      url = url.toLowerCase();
      if (url.includes("/courseadult")) {
        xyb.page_list();
      } else if (url.includes("/studynotes")) {
        xyb.page_video();
      }
    },
    // 列表页面 - 自动打开未完成课程
    async page_list() {
      console.log("%c page_list", "background:rgb(0,0,0);color:#fff");
      xyb.updateStatus("正在加载课程列表...");
      await xyb.waitUntil(() => $(".course-list .item:visible").length > 0);
      await xyb.sleep(1000);
      let $el = null;
      $(".course-list .item:visible").each((i, el) => {
        let jd = Number($(el).find(`[role="progressbar"]`).attr('aria-valuenow'));
        if (jd < 100) {
          $el = $(el);
          return false;
        }
      });
      if ($el == null) {
        xyb.updateStatus("所有课程已完成");
        return;
      }
      xyb.updateStatus("正在打开课程...");
      await xyb.sleep(3000);
      $el.find('.itemButton button').click();
    },
    // 视频页面 - 解除播放限制
    async page_video() {
      console.log("%c page_video", "background:rgb(0,0,0);color:#fff");
      if (xyb.pageData.videoTimer != null) return;
      let lastTime = null;
      let stuckCount = 0;
      xyb.updateStatus("视频播放功能已启动");
      // 卡住检测
      xyb.pageData.videoCheckTimer = setTimeout(async () => {
        let t = xyb.getCurTime();
        await xyb.sleep(5000);
        if (xyb.getCurTime() == t) {
          xyb.updateStatus("视频卡住，正在刷新页面...");
          location.reload();
        }
      }, 60 * 1000);
      // 主循环
      xyb.pageData.videoTimer = setInterval(async () => {
        try {
          if (!xyb.getVideo()) return;
          // 点击大播放按钮
          if ($(".vjs-big-play-button:visible").length > 0) {
            $(".vjs-big-play-button:visible").click();
            return;
          }
          // 解除播放限制 - 自动播放
          let isPlaying = await xyb.checkIsPlaying();
          if (!isPlaying) {
            xyb.playVideo();
            xyb.updateStatus("▶ 正在播放视频...");
          }
          xyb.getVideo().volume = 0;
          let curTime = xyb.getCurTime();
          let totalTime = xyb.getTotalTime();
          // 卡住检测
          if (curTime == lastTime) {
            stuckCount += 2;
            if (stuckCount >= 60) {
              xyb.updateStatus("视频卡住，正在刷新...");
              location.reload();
              return;
            }
          } else {
            stuckCount = 0;
            lastTime = curTime;
          }
          // 更新进度显示
          let progress = totalTime > 0 ? (curTime / totalTime * 100).toFixed(1) : 0;
          let curStr = xyb.formatTime(curTime);
          let totalStr = xyb.formatTime(totalTime);
          xyb.updateStatus(`▶ 视频播放中 ${progress}% [${curStr}/${totalStr}]`);
          // 标题显示进度
          $("title").text(`进度：${curTime.toFixed(0)}/${totalTime.toFixed(0)}`);
          // 检测播放完成
          if (totalTime > 0 && curTime + 5 >= totalTime) {
            xyb.updateStatus("视频即将结束，准备下一个...");
            clearInterval(xyb.pageData.videoTimer);
            xyb.pageData.videoTimer = null;
            xyb.goNextVideo();
          }
        } catch (e) {
          console.error("视频页面定时器出错", e);
        }
      }, 2000);
    },
    // 播放完成后点击下一个
    goNextVideo() {
      setTimeout(() => {
        $(".opera.fr").click();
      }, 10000);
    },
    // 获取视频元素
    getVideo() {
      return $("video")[0];
    },
    // 播放视频
    playVideo() {
      let video = xyb.getVideo();
      if (video) {
        video.volume = 0;
        setTimeout(() => {
          xyb.getVideo().play();
        }, 200);
      }
    },
    // 检测视频是否在播放
    checkIsPlaying() {
      return new Promise((resolve) => {
        try {
          let curTime = xyb.getCurTime();
          setTimeout(() => {
            let time1 = xyb.getCurTime();
            if (time1 > curTime) {
              setTimeout(() => {
                let time2 = xyb.getCurTime();
                resolve(time2 > time1);
              }, 100);
            } else {
              resolve(false);
            }
          }, 100);
        } catch (e) {
          resolve(false);
        }
      });
    },
    // 获取当前播放时间（硬编码）
    getCurTime() {
      try {
        return xyb.getVideo().currentTime;
      } catch (e) {
        return 0;
      }
    },
    // 获取总时长（硬编码）
    getTotalTime() {
      try {
        return xyb.getVideo().duration;
      } catch (e) {
        return 0;
      }
    },
    // 格式化时间为 HH:MM:SS
    formatTime(seconds) {
      seconds = Math.floor(Math.abs(seconds));
      let hours = Math.floor(seconds / 3600);
      let minutes = Math.floor((seconds % 3600) / 60);
      let secs = seconds % 60;
      hours = (hours < 10) ? "0" + hours : hours;
      minutes = (minutes < 10) ? "0" + minutes : minutes;
      secs = (secs < 10) ? "0" + secs : secs;
      return hours + ":" + minutes + ":" + secs;
    },
    // 等待条件满足
    waitUntil(fun, interval = 1000, timeout = 60) {
      return new Promise((resolve, reject) => {
        let _timeOut = timeout * 1000;
        try {
          if (fun()) return resolve();
        } catch (e) { }
        let index = setInterval(() => {
          try {
            if (timeout != -1) {
              _timeOut -= interval;
              if (_timeOut < 0) {
                clearInterval(index);
                return reject();
              }
            }
            if (fun()) {
              clearInterval(index);
              return resolve();
            }
          } catch (e) { }
        }, interval);
        xyb.pageData.waitIndexArr.push(index);
      });
    },
    // 延时
    sleep(timeout) {
      return new Promise((resolve) => {
        setTimeout(resolve, timeout);
      });
    },
  };

  // 3秒后初始化，检测付费版本是否在运行
  setTimeout(() => {
    if (typeof (zfk) == 'undefined') {
      xyb.init();
    } else {
      console.log('skip init');
    }
  }, 3000);
})();