// ==UserScript==
// @name         绵阳公需课（免费版）|如需自动下一集、自动换课程、秒过、考试答题等高级功能见收费版本：http://doc.zhanyc.cn/pages/mygxk/
// @version      1.0-free
// @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 备用微信:zhanfengkuo 个人网站：http://doc.zhanyc.cn
// @author       zfk
// @include    *://*.mianyang.cn/*
// @grant       GM_getValue
// @grant       GM_setValue
// @grant       GM_addStyle
// @grant       GM_deleteValue
// @run-at      document-end
// @require     http://libs.baidu.com/jquery/2.0.0/jquery.min.js
// ==/UserScript==
(function () {
  let $jq = $;
  unsafeWindow.$jq = $;
  let docUrl = "http://doc.zhanyc.cn/pages/mygxk/";

  let FREEJS = {
    pageData: {
      video: {
        index: null,
      },
      userNameIndex: null,
    },
    async init() {
      console.log("%c FREEJS init", "background:rgb(0,0,0);color:#fff");
      this.addStyle();
      this.createFloatPanel();
      this.runByUrl(location.href);
    },
    async runByUrl(url) {
      if (url.includes("/pc/index.jhtml")) {
        this.page_pcIndex();
      } else if (/.*\/jxjy\/pc\/zxxx_.*\/index.jhtml.*/.test(url)) {
        this.page_video();
      } else if (/.*\/jxjy\/pc\/ksjg_.*\/index.jhtml.*/.test(url)) {
        this.page_ksjg();
      } else if (url.includes("/index.jhtml?keyword=")) {
        this.page_search();
      }
    },
    createFloatPanel() {
      if (document.getElementById("FREEJS_floatPanel")) return;
      let panel = document.createElement("div");
      panel.id = "FREEJS_floatPanel";
      panel.innerHTML = `
        <div class="freejs-panel-header">
          <span class="freejs-panel-title">🎯 绵阳公需课 · 免费版</span>
          <span class="freejs-panel-close" id="FREEJS_closePanelBtn">✕</span>
        </div>
        <div class="freejs-panel-body" id="FREEJS_panelBody">
          <div class="freejs-panel-status" id="FREEJS_panelStatus">脚本运行中...</div>
          <div class="freejs-panel-progress" id="FREEJS_panelProgress" style="display:none;">
            <div class="freejs-progress-bar">
              <div class="freejs-progress-fill" id="FREEJS_progressFill"></div>
            </div>
            <div class="freejs-progress-text" id="FREEJS_progressText">0/0</div>
          </div>
          <div class="freejs-panel-video-status" id="FREEJS_panelVideoStatus"></div>
        </div>
        <div class="freejs-panel-footer">
          <div class="freejs-footer-tips">⚠ 如需使用全功能版本（自动下一集、自动换课、秒过、考试答题、全自动无人值守），请安装付费版本购买授权后可使用</div>
          <a class="freejs-footer-link" href="${docUrl}" target="_blank">👉 点此查看付费版本说明</a>
          <div class="freejs-footer-contact">📞 联系作者微信：zhanyc_cn</div>
        </div>
      `;
      document.body.appendChild(panel);

      // 关闭按钮事件
      document.getElementById("FREEJS_closePanelBtn").onclick = function () {
        let p = document.getElementById("FREEJS_floatPanel");
        if (p) p.style.display = "none";
      };

      // 可拖动
      this.makeDraggable(panel);
    },
    makeDraggable(el) {
      let isDown = false, offsetX, offsetY;
      let header = el.querySelector(".freejs-panel-header");
      header.style.cursor = "move";
      header.onmousedown = function (e) {
        isDown = true;
        offsetX = e.clientX - el.getBoundingClientRect().left;
        offsetY = e.clientY - el.getBoundingClientRect().top;
        document.onmousemove = function (e) {
          if (!isDown) return;
          el.style.left = (e.clientX - offsetX) + "px";
          el.style.top = (e.clientY - offsetY) + "px";
          el.style.right = "auto";
        };
        document.onmouseup = function () {
          isDown = false;
          document.onmousemove = null;
          document.onmouseup = null;
        };
      };
    },
    updatePanelStatus(text) {
      let el = document.getElementById("FREEJS_panelStatus");
      if (el) el.textContent = text;
    },
    showPanelProgress(show) {
      let el = document.getElementById("FREEJS_panelProgress");
      if (el) el.style.display = show ? "block" : "none";
    },
    updatePanelProgress(current, total) {
      this.showPanelProgress(true);
      let fill = document.getElementById("FREEJS_progressFill");
      let text = document.getElementById("FREEJS_progressText");
      if (fill && text) {
        let pct = total > 0 ? Math.min(100, (current / total) * 100) : 0;
        fill.style.width = pct + "%";
        text.textContent = current.toFixed(0) + "/" + total.toFixed(0) + " (" + pct.toFixed(1) + "%)";
      }
      // 更新标题
      document.title = "进度：" + current.toFixed(0) + "/" + total.toFixed(0);
    },
    updatePanelVideoStatus(text, isPlaying) {
      let el = document.getElementById("FREEJS_panelVideoStatus");
      if (el) {
        el.innerHTML = text;
        el.className = "freejs-panel-video-status" + (isPlaying ? " playing" : " paused");
      }
    },
    async page_pcIndex() {
      console.log("%c FREEJS page_pcIndex", "background:rgb(255,0,0);color:#fff");
      this.updatePanelStatus("已在首页，等待操作...");
      await this.waitOf(function () { return $("#keywords:visible").length > 0; });
      await this.waitOf(function () { return $(".login:visible,.user_center:visible").length > 0; });
      if ($(".user_center:visible").length > 0) {
        // 已登录 - 直接检索课程
        this.updatePanelStatus("已登录，正在检索课程...");
        $("#keywords:visible").val("20");
        await this.waitTimeout(300);
        $('[onclick="queryCousre()"]').click();
        return;
      }
      // 未登录 - 提示登录
      this.updatePanelStatus("请先登录账号后再使用");
    },
    async page_video() {
      console.log("%c FREEJS page_video", "background:rgb(255,0,0);color:#fff");
      if (this.pageData.video.index != null) {
        return;
      }
      let self = this;
      let timeout = 2;
      self.updatePanelStatus("🎬 视频页面已加载");
      self.showPanelProgress(true);
      self.pageData.video.index = setInterval(async function () {
        try {
          // 处理"是否继续播放视频"弹窗
          if ($("#jAlertParent:visible").length > 0) {
            if (FREEJS.getElByText($("span.text"), "是否继续播放视频？") != null) {
              $("#jAlertButton2").click();
              return;
            }
            // 其他弹窗
            let btn = $("#jAlertButton2:visible");
            if (btn.length > 0) btn.click();
            return;
          }
          // 处理"点击按钮，继续学习课程"弹窗
          let $tips = FREEJS.getElByText(
            ".layui-layer-content p",
            "您好，本平台要求实时在线学习，点击按钮，继续学习课程。"
          );
          if ($tips != null) {
            $tips.parents(".layui-layer").find(".layui-layer-btn0")[0].click();
          }
          // 没有视频元素
          if (!FREEJS.getVideo()) {
            FREEJS.updatePanelStatus("⏳ 等待视频加载...");
            return;
          }
          let video = FREEJS.getVideo();
          video.volume = 0;
          let cur = FREEJS.getCurTime();
          let total = FREEJS.getTotalTime();
          FREEJS.updatePanelProgress(cur, total);
          // 检测是否播放完毕
          let isFinish = FREEJS.isPlayFinish();
          if (isFinish) {
            FREEJS.updatePanelVideoStatus("✅ 当前视频已播放完成", true);
            FREEJS.updatePanelStatus("✅ 视频已播完，如需自动下一集请升级付费版本");
            return;
          }
          // 检测是否在播放
          let isPlay = await FREEJS.videoIsPlay();
          if (!isPlay) {
            FREEJS.play();
            FREEJS.updatePanelVideoStatus("▶ 正在播放中...", true);
            FREEJS.updatePanelStatus("▶ 视频自动播放中");
          } else {
            FREEJS.updatePanelVideoStatus("▶ 正在播放中...", true);
            FREEJS.updatePanelStatus("▶ 视频播放中");
          }
        } catch (e) {
          console.error("FREEJS video interval error", e);
        }
      }, timeout * 1000);
    },
    async page_ksjg() {
      console.log("%c FREEJS page_ksjg", "background:rgb(255,0,0);color:#fff");
      this.updatePanelStatus("📄 考试结果页面");
      // 引流: 自动切换账号功能改为引流文案
      this.alertMsg(
        "检测到考试结果页面。<br/>自动切换账号功能仅在付费版本中提供。<br/><br/>" +
        "如需全自动无人值守（自动下一集、自动换课、自动切换账号、秒过、考试答题等），请安装付费版本。<br/><br/>" +
        '<a href="' + docUrl + '" target="_blank" style="color:#00BFFF;">👉 点此查看付费版本说明</a>',
        0
      );
    },
    async page_search() {
      console.log("%c FREEJS page_search", "background:rgb(255,0,0);color:#fff");
      this.updatePanelStatus("🔍 检索课程中...");
      await this.waitOf(function () { return $(".resultListCon").length > 0; });
      await this.waitTimeout(1000);
      let $el = $(".resultListCon").eq(0);
      let btnTxt = $el.find(".rightmsg:first").text().trim();
      if (btnTxt == "选课") {
        this.updatePanelStatus("检测到可选课程，正在选课...");
        $el.find(".rightmsg>a")[0].click();
        await this.waitTimeout(500);
        let confirmBtn = FREEJS.getElByText($("div#jAlertButton2"), "确认选课");
        if (confirmBtn) confirmBtn.click();
        setTimeout(function () { location.reload(); }, 3000);
      } else if (btnTxt == "继续学习" || btnTxt == "开始学习") {
        if ($el.find(".rightlabel").text() == "考试合格") {
          // 引流: 自动切换账号改为引流文案
          this.updatePanelStatus("考试合格！自动切换账号功能需付费版本");
          this.alertMsg(
            "检测到该学员已考试合格。<br/>自动切换账号功能仅在付费版本中提供。<br/><br/>" +
            "如需全自动无人值守（自动下一集、自动换课、自动切换账号、秒过、考试答题等），请安装付费版本。<br/><br/>" +
            '<a href="' + docUrl + '" target="_blank" style="color:#00BFFF;">👉 点此查看付费版本说明</a>',
            0
          );
          return;
        }
        this.updatePanelStatus("正在进入课程学习...");
        $el.find(".rightmsg>a")[0].click();
      }
    },
    // 视频工具方法
    play() {
      let video = this.getVideo();
      if (video) {
        video.volume = 0;
        setTimeout(function () { video.play(); }, 200);
      }
    },
    getVideo() {
      return $("video")[0];
    },
    isPlayFinish() {
      try {
        return this.getTotalTime() > 0 && this.getCurTime() + 5 >= this.getTotalTime();
      } catch (e) {
        return false;
      }
    },
    getCurTime() {
      try {
        return this.getVideo() ? this.getVideo().currentTime : 0;
      } catch (e) {
        return 0;
      }
    },
    getTotalTime() {
      try {
        return this.getVideo() ? this.getVideo().duration : 0;
      } catch (e) {
        return 0;
      }
    },
    async videoIsPlay() {
      return new Promise(function (resolve) {
        try {
          let video = $("video")[0];
          if (!video) return resolve(false);
          let curTime = video.currentTime;
          setTimeout(function () {
            let time1 = video.currentTime;
            if (time1 > curTime) {
              setTimeout(function () {
                let time2 = video.currentTime;
                resolve(time2 > time1);
              }, 100);
            } else {
              resolve(false);
            }
          }, 100);
        } catch (e) {
          resolve(false);
        }
      });
    },
    waitTimeout(timeout) {
      return new Promise(function (resolve) {
        setTimeout(function () { resolve(); }, timeout);
      });
    },
    waitOf(fun, interval, timeout) {
      if (!interval) interval = 1000;
      if (!timeout) timeout = -1;
      return new Promise(function (resolve, reject) {
        if (fun()) return resolve();
        let _timeOut = timeout * 1000;
        let index = setInterval(function () {
          if (timeout != -1) {
            _timeOut -= interval;
            if (_timeOut < 0) {
              clearInterval(index);
              return reject();
            }
          }
          if (fun()) {
            clearInterval(index);
            return resolve();
          }
        }, interval);
      });
    },
    getElByText(query, text, mode) {
      if (!mode) mode = "eq";
      let $el = null;
      $(query).each(function (i, el) {
        if (mode == "eq" && $(el).text().trim() == text) {
          $el = $(el);
          return false;
        } else if (mode == "startsWith" && $(el).text().trim().startsWith(text)) {
          $el = $(el);
          return false;
        }
      });
      return $el;
    },
    addStyle() {
      GM_addStyle(`
        #FREEJS_floatPanel {
          position: fixed;
          top: 10px;
          left: 10px;
          z-index: 999999;
          background: rgba(30, 30, 30, 0.92);
          color: #fff;
          padding: 0;
          border-radius: 8px;
          max-width: 320px;
          min-width: 250px;
          box-shadow: 0 4px 20px rgba(0,0,0,0.5);
          font-size: 13px;
          line-height: 1.5;
          font-family: "Microsoft YaHei", sans-serif;
          border: 1px solid #555;
        }
        #FREEJS_floatPanel .freejs-panel-header {
          display: flex;
          justify-content: space-between;
          align-items: center;
          padding: 8px 12px;
          background: linear-gradient(135deg, #e74c3c, #c0392b);
          border-radius: 7px 7px 0 0;
          user-select: none;
        }
        #FREEJS_floatPanel .freejs-panel-title {
          font-weight: bold;
          font-size: 14px;
          color: #fff;
        }
        #FREEJS_floatPanel .freejs-panel-close {
          cursor: pointer;
          color: rgba(255,255,255,0.7);
          font-size: 16px;
          padding: 0 4px;
        }
        #FREEJS_floatPanel .freejs-panel-close:hover {
          color: #fff;
        }
        #FREEJS_floatPanel .freejs-panel-body {
          padding: 10px 12px;
        }
        #FREEJS_floatPanel .freejs-panel-status {
          font-size: 13px;
          color: #FFD700;
          margin-bottom: 6px;
        }
        #FREEJS_floatPanel .freejs-panel-progress {
          margin: 6px 0;
        }
        #FREEJS_floatPanel .freejs-progress-bar {
          height: 8px;
          background: #444;
          border-radius: 4px;
          overflow: hidden;
        }
        #FREEJS_floatPanel .freejs-progress-fill {
          height: 100%;
          width: 0%;
          background: linear-gradient(90deg, #2ecc71, #27ae60);
          border-radius: 4px;
          transition: width 0.5s;
        }
        #FREEJS_floatPanel .freejs-progress-text {
          font-size: 12px;
          color: #aaa;
          margin-top: 3px;
          text-align: right;
        }
        #FREEJS_floatPanel .freejs-panel-video-status {
          margin-top: 6px;
          font-size: 13px;
        }
        #FREEJS_floatPanel .freejs-panel-video-status.playing {
          color: #2ecc71;
        }
        #FREEJS_floatPanel .freejs-panel-video-status.paused {
          color: #e74c3c;
        }
        #FREEJS_floatPanel .freejs-panel-footer {
          padding: 8px 12px;
          border-top: 1px solid #444;
          font-size: 12px;
        }
        #FREEJS_floatPanel .freejs-footer-tips {
          color: #FFD700;
          margin-bottom: 6px;
        }
        #FREEJS_floatPanel .freejs-footer-link {
          display: inline-block;
          color: #00BFFF;
          text-decoration: none;
          margin-bottom: 4px;
        }
        #FREEJS_floatPanel .freejs-footer-link:hover {
          text-decoration: underline;
        }
        #FREEJS_floatPanel .freejs-footer-contact {
          color: #999;
          font-size: 11px;
        }
        /* 简易弹窗样式 */
        .freejs-modal-overlay {
          position: fixed;
          top: 0; left: 0; right: 0; bottom: 0;
          background: rgba(0,0,0,0.5);
          z-index: 9999999;
          display: flex;
          justify-content: center;
          align-items: center;
        }
        .freejs-modal-box {
          background: #fff;
          color: #333;
          border-radius: 8px;
          max-width: 420px;
          width: 90%;
          box-shadow: 0 8px 30px rgba(0,0,0,0.3);
          overflow: hidden;
          animation: freejsFadeIn 0.2s ease;
        }
        @keyframes freejsFadeIn {
          from { opacity: 0; transform: scale(0.95); }
          to { opacity: 1; transform: scale(1); }
        }
        .freejs-modal-header {
          background: #c0392b;
          color: #fff;
          padding: 10px 16px;
          font-weight: bold;
          font-size: 15px;
        }
        .freejs-modal-body {
          padding: 16px;
          font-size: 14px;
          line-height: 1.6;
        }
        .freejs-modal-footer {
          padding: 10px 16px;
          text-align: right;
          border-top: 1px solid #eee;
        }
        .freejs-modal-btn {
          background: #e74c3c;
          color: #fff;
          border: none;
          padding: 6px 20px;
          border-radius: 4px;
          cursor: pointer;
          font-size: 14px;
        }
        .freejs-modal-btn:hover {
          opacity: 0.9;
        }
      `);
    },
    // 简易弹窗（替代layer）
    alertMsg(html, timeout) {
      if (!timeout) timeout = 0;
      var overlay = document.createElement("div");
      overlay.className = "freejs-modal-overlay";
      overlay.innerHTML =
        '<div class="freejs-modal-box">' +
        '<div class="freejs-modal-header">免费版提示</div>' +
        '<div class="freejs-modal-body">' + html + '</div>' +
        '<div class="freejs-modal-footer"><button class="freejs-modal-btn" id="FREEJS_alertBtn">我知道了</button></div>' +
        '</div>';
      document.body.appendChild(overlay);
      document.getElementById("FREEJS_alertBtn").onclick = function () {
        document.body.removeChild(overlay);
      };
      if (timeout > 0) {
        setTimeout(function () {
          if (overlay.parentNode) document.body.removeChild(overlay);
        }, timeout);
      }
    },
    tipsMsg(msg) {
      this.updatePanelStatus(msg);
    },
    // GM Data 工具
    getGMData(item, def) {
      return GM_getValue(item, def);
    },
    setGMData(item, val) {
      return GM_setValue(item, val);
    },
    delGMData(item) {
      return GM_deleteValue(item);
    },
  };

  // 延迟初始化：3秒后检查是否付费版本已运行
  setTimeout(function () {
    if (typeof (zfk) == "undefined") {
      console.log("%c FREEJS init start", "background:rgb(0,0,0);color:#fff");
      FREEJS.init();
    } else {
      console.log("付费版本已运行，跳过免费版本初始化");
    }
  }, 3000);
})();