// ==UserScript==
// @name         🥇良师在线品质课堂|使用说明：http://doc.zhanyc.cn/pages/pzkt/
// @namespace    free
// @version      1.0
// @description  当前是免费版本，只包含了视频页面自动播放、解除播放暂停限制功能。如需自动下一集、自动换课程、秒过、考试答题、全自动无人值守高级功能可升级付费版本|接各类脚本开发、代挂工作，微信：zhanyc_cn 个人网站：http://doc.zhanyc.cn
// @include    *://*lsedu.vip*
// @include    *://*.lsedu.vip/*
// @grant       GM_getValue
// @grant       GM_setValue
// @grant       GM_deleteValue
// @grant       GM_setClipboard
// @grant       GM_addStyle
// @run-at       document-end
// @require http://libs.baidu.com/jquery/2.0.0/jquery.min.js
// @license Creative Commons
// ==/UserScript==
(function () {
  let docUrl = "http://doc.zhanyc.cn/pages/pzkt/";
  let $jq = $;
  unsafeWindow.$jq = $;

  let FREEJS = {
    pageData: {
      waitOfIndexArr: [],
      waitTime: 0,
      video: {
        index: null,
        checkIndex: null,
      },
    },

    async init() {
      console.log("%c FREEJS init", "background:rgb(0,0,0);color:#fff");
      FREEJS._stopLeaveTips();
      FREEJS._createFloatPanel();
      if (top == window) {
        FREEJS._addFloatMsg("免费版本已启动，仅支持视频自动播放和解除暂停");
      }
      FREEJS._runByUrl(location.href);
      let lastUrl = location.href;
      setInterval(async () => {
        if (lastUrl != location.href) {
          lastUrl = location.href;
          FREEJS._runByUrl(location.href);
        }
      }, 500);
    },

    _runByUrl(url) {
      clearInterval(FREEJS.pageData.video.index);
      FREEJS.pageData.video.index = null;
      clearTimeout(FREEJS.pageData.video.checkIndex);
      FREEJS.pageData.video.checkIndex = null;
      url = url.toLowerCase();
      if (url.includes("/course/".toLowerCase())) {
        FREEJS._page_video();
      }
    },

    async _page_video() {
      console.log("%c _page_video", "background:rgb(0,0,0);color:#fff");
      let timeout = 2;
      let lastTime = null;
      let checkTimeTimesBak = 60;
      let checkTimeTimes = checkTimeTimesBak;
      FREEJS.pageData.waitTime = 0;

      clearTimeout(FREEJS.pageData.video.checkIndex);
      FREEJS.pageData.video.checkIndex = setTimeout(async () => {
        let curTime = FREEJS._getCurTime();
        await FREEJS._delay(5000);
        if (FREEJS._getCurTime() == curTime) {
          FREEJS._addFloatMsg("⚠️ 检测到视频可能卡住，请手动刷新页面");
        }
      }, 60 * 1000);

      FREEJS.pageData.video.index = setInterval(async () => {
        try {
          if (FREEJS.pageData.waitTime > 0) {
            FREEJS.pageData.waitTime -= timeout;
            return;
          }
          if (!FREEJS._getVideo()) {
            console.log("%c no video", "background:rgb(0,0,0);color:#fff");
            return;
          }
          let curTime = FREEJS._getCurTime();
          if (curTime == lastTime) {
            lastTime = FREEJS._getCurTime();
            checkTimeTimes -= timeout;
            if (checkTimeTimes <= 0) {
              checkTimeTimes = checkTimeTimesBak;
              FREEJS._addFloatMsg("⚠️ 视频可能卡死，请检查页面状态");
              FREEJS.pageData.waitTime = 10;
              return;
            }
          } else {
            lastTime = curTime;
            checkTimeTimes = checkTimeTimesBak;
          }
          FREEJS._getVideo().volume = 0;
          let current = FREEJS._getCurTime().toFixed(0);
          let total = FREEJS._getTotalTime().toFixed(0);
          let title = `进度：${current}/${total}`;
          $("title").text(title);
          FREEJS._updateFloatProgress(current, total);
          console.log("%c video running", "background:rgb(255,0,0);color:#fff");
          let isPlay = await FREEJS._videoIsPlay();
          if (!isPlay) {
            FREEJS._play();
          }
        } catch (e) {
          console.error("视频定时器出错", e);
        }
      }, timeout * 1000);
    },

    _play() {
      let video = FREEJS._getVideo();
      if (video) {
        video.volume = 0;
        setTimeout(() => {
          video.play();
        }, 200);
      }
    },

    _getVideo() {
      return $("video")[0];
    },

    _getCurTime() {
      try {
        let video = FREEJS._getVideo();
        return video ? video.currentTime : 0;
      } catch (e) {
        return 0;
      }
    },

    _getTotalTime() {
      try {
        let video = FREEJS._getVideo();
        return video ? video.duration : 0;
      } catch (e) {
        return 0;
      }
    },

    _videoIsPlay() {
      return new Promise((resolve) => {
        try {
          let curTime = FREEJS._getCurTime();
          setTimeout(() => {
            let time1 = FREEJS._getCurTime();
            let res = time1 > curTime;
            if (res) {
              setTimeout(() => {
                let time2 = FREEJS._getCurTime();
                resolve(time2 > time1);
              }, 100);
            } else {
              resolve(false);
            }
          }, 100);
        } catch (e) {
          resolve(false);
        }
      });
    },

    _stopLeaveTips() {
      const win = unsafeWindow;
      const EventTargetProto = win.EventTarget.prototype;
      const originalAddEventListener = EventTargetProto.addEventListener;
      const originalRemoveEventListener = EventTargetProto.removeEventListener;
      EventTargetProto.addEventListener = function (type, listener, options) {
        if (type === 'beforeunload') {
          console.log('[FREEJS] 已阻止 beforeunload 监听注册');
          return;
        }
        return originalAddEventListener.call(this, type, listener, options);
      };
      EventTargetProto.removeEventListener = function (type, listener, options) {
        if (type === 'beforeunload') {
          return;
        }
        return originalRemoveEventListener.call(this, type, listener, options);
      };
      win.onbeforeunload = null;
      Object.defineProperty(win, 'onbeforeunload', {
        configurable: true,
        enumerable: true,
        get: function () { return null; },
        set: function (value) {
          console.log('[FREEJS] 已阻止设置 onbeforeunload');
        }
      });
    },

    _delay(timeout) {
      return new Promise((resolve) => {
        setTimeout(() => resolve(), timeout);
      });
    },

    _wait(fun, interval = 1000, timeout = 30) {
      console.log("%c _wait", "background:rgb(0,0,0);color:#fff");
      return new Promise((resolve, reject) => {
        let _timeOut = timeout * 1000;
        try {
          if (fun()) {
            return resolve();
          }
        } catch (e) {
          console.error(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) {
            console.error(e);
          }
        }, interval);
        FREEJS.pageData.waitOfIndexArr.push(index);
      });
    },

    _clearWait() {
      FREEJS.pageData.waitOfIndexArr.forEach(index => {
        clearInterval(index);
      });
      FREEJS.pageData.waitOfIndexArr = [];
    },

    openDoc() {
      if (docUrl) {
        window.open(docUrl);
      }
    },

    getElByText(query, text, mode = "eq", visible = true) {
      let $el = null;
      text = text.trim();
      $(query).each((i, el) => {
        if (visible && !$(el).is(":visible")) {
          return true;
        }
        if (mode == "eq" && $(el).text().trim() == text) {
          $el = $(el);
          return false;
        } else if (mode == "startsWith" && $(el).text().trim().startsWith(text)) {
          $el = $(el);
          return false;
        } else if (mode == "endsWith" && $(el).text().trim().endsWith(text)) {
          $el = $(el);
          return false;
        } else if (mode == "like" && $(el).text().trim().includes(text)) {
          $el = $(el);
          return false;
        }
      });
      return $el;
    },

    getElListByText(query, text, mode = "eq", visible = true) {
      let arr = [];
      $(query).each((i, el) => {
        if (visible && !$(el).is(":visible")) {
          return true;
        }
        if (mode == "eq" && $(el).text().trim() == text) {
          arr.push($(el));
        } else if (mode == "startsWith" && $(el).text().trim().startsWith(text)) {
          arr.push($(el));
        } else if (mode == "endsWith" && $(el).text().trim().endsWith(text)) {
          arr.push($(el));
        } else if (mode == "like" && $(el).text().trim().includes(text)) {
          arr.push($(el));
        }
      });
      return arr;
    },

    now() {
      return new Date().getTime();
    },

    dateFormat(date = new Date(), fmt = "yyyy-MM-dd HH:mm") {
      let ret;
      if (typeof date === "number") date = new Date(date);
      const opt = {
        "y+": date.getFullYear().toString(),
        "M+": (date.getMonth() + 1).toString(),
        "d+": date.getDate().toString(),
        "H+": date.getHours().toString(),
        "m+": date.getMinutes().toString(),
        "s+": date.getSeconds().toString(),
      };
      for (let k in opt) {
        ret = new RegExp("(" + k + ")").exec(fmt);
        if (ret) {
          fmt = fmt.replace(ret[1], ret[1].length == 1 ? opt[k] : opt[k].padStart(ret[1].length, "0"));
        }
      }
      return fmt;
    },

    setClip(txt) {
      GM_setClipboard(txt, "text");
    },

    // ---- 悬浮面板相关 ----
    _createFloatPanel() {
      if ($("#freejs-float-panel").length > 0) return;
      GM_addStyle(`
        #freejs-float-panel {
          position: fixed;
          bottom: 20px;
          left: 20px;
          z-index: 2147483647;
          background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
          border-radius: 12px;
          box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
          padding: 16px 20px;
          min-width: 220px;
          max-width: 320px;
          color: #fff;
          font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
          font-size: 14px;
          line-height: 1.6;
          user-select: none;
        }
        #freejs-float-panel .freejs-close {
          position: absolute;
          top: 6px;
          right: 10px;
          cursor: pointer;
          font-size: 20px;
          color: rgba(255,255,255,0.7);
          background: none;
          border: none;
          padding: 0;
          line-height: 1;
        }
        #freejs-float-panel .freejs-close:hover {
          color: #fff;
        }
        #freejs-float-panel .freejs-title {
          font-size: 15px;
          font-weight: bold;
          margin-bottom: 8px;
          padding-right: 20px;
        }
        #freejs-float-panel .freejs-body {
          margin-bottom: 8px;
        }
        #freejs-float-panel .freejs-body a {
          color: #ffd700;
          text-decoration: underline;
          cursor: pointer;
        }
        #freejs-float-panel .freejs-body a:hover {
          color: #ffec80;
        }
        #freejs-float-panel .freejs-progress {
          background: rgba(255,255,255,0.2);
          border-radius: 10px;
          padding: 8px 10px;
          margin-bottom: 8px;
          display: none;
          font-size: 13px;
        }
        #freejs-float-panel .freejs-progress .freejs-progress-bar-bg {
          background: rgba(255,255,255,0.3);
          border-radius: 6px;
          height: 8px;
          margin-top: 4px;
          overflow: hidden;
        }
        #freejs-float-panel .freejs-progress .freejs-progress-bar {
          background: #ffd700;
          height: 100%;
          border-radius: 6px;
          width: 0%;
          transition: width 0.5s ease;
        }
        #freejs-float-panel .freejs-footer {
          font-size: 12px;
          color: rgba(255,255,255,0.8);
          border-top: 1px solid rgba(255,255,255,0.2);
          padding-top: 6px;
          margin-top: 4px;
        }
        #freejs-float-panel .freejs-msg {
          background: rgba(255,255,255,0.15);
          border-radius: 6px;
          padding: 6px 10px;
          margin-bottom: 6px;
          font-size: 13px;
          display: none;
        }
      `);
      let html = `
        <div id="freejs-float-panel">
          <button class="freejs-close">&times;</button>
          <div class="freejs-title">🎯 免费版本 - 良师在线品质课堂</div>
          <div class="freejs-body">
            <div>如需使用全功能版本，请通过下方地址安装付费版本购买授权后可使用</div>
            <div style="margin-top:6px;"><a target="_blank" href="${docUrl}">${docUrl}</a></div>
          </div>
          <div class="freejs-progress" id="freejs-progress-area">
            <div>视频播放中...</div>
            <div class="freejs-progress-bar-bg"><div class="freejs-progress-bar" id="freejs-progress-bar"></div></div>
            <div style="margin-top:2px;" id="freejs-progress-text">0/0</div>
          </div>
          <div class="freejs-msg" id="freejs-msg-area"></div>
          <div class="freejs-footer">
            接各类脚本开发、代挂、网站小程序开发工作，微信：zhanyc_cn
          </div>
        </div>
      `;
      $("body").append(html);
      $("#freejs-float-panel .freejs-close").on("click", function () {
        $("#freejs-float-panel").remove();
      });
    },

    _removeFloatPanel() {
      $("#freejs-float-panel").remove();
    },

    _addFloatMsg(msg) {
      let $area = $("#freejs-msg-area");
      if ($area.length == 0) return;
      $area.text(msg).show();
    },

    _updateFloatProgress(current, total) {
      let $area = $("#freejs-progress-area");
      let $bar = $("#freejs-progress-bar");
      let $text = $("#freejs-progress-text");
      if ($area.length == 0) return;
      $area.show();
      let pct = 0;
      if (total > 0) {
        pct = Math.min(100, (current / total) * 100);
      }
      $bar.css("width", pct + "%");
      $text.text(`${current} / ${total}`);
    },
  };

  if (!unsafeWindow.FREEJS) unsafeWindow.FREEJS = FREEJS;

  setTimeout(() => {
    debugger
    if (typeof (zfk) == 'undefined') {
      FREEJS.init();
    } else {
      console.log('skip init');
    }
  }, 3000);
})();