// ==UserScript==
// @name         【免费】贵州省人才大市场专业技术人员继续教育基地|如需自动下一集、自动换课程、秒过等高级功能见收费版本：http://doc.zhanyc.cn/pages/gzsrcdsc/
// @namespace    free
// @version      1.0
// @description  当前是免费版本，包含了视频页面自动播放、解除播放暂停限制、考试全部选A功能。如需自动下一集、自动换课程、秒过、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
// @author       zfk
// @include    *://*gzjxjy.org.cn*
// @include    *://*.gzjxjy.org.cn/*
// @grant       GM_getValue
// @grant       GM_setValue
// @grant       GM_addStyle
// @grant       GM_deleteValue
// @grant       GM_registerMenuCommand
// @run-at      document-end
// @require http://libs.baidu.com/jquery/2.0.0/jquery.min.js
// @license Creative Commons
// ==/UserScript==
(function () {
  let $jq = $;
  unsafeWindow.$jq = $;
  let docUrl = "http://doc.zhanyc.cn/pages/gzsrcdsc/";

  let free = {
    pageData: {
      video: {
        index: null
      },
      waitOfIndexArr: []
    },

    async init() {
      console.log("%c 【免费版】init", "background:rgb(0,0,0);color:#fff");
      free.addStyle();
      free.createFloatingPanel();
      free.registerMenuCommand();

      if (location.href.includes("/course/detail/")) {
        free.page_video();
      }
      free.autoExam();

      let lastUrl = location.href;
      setInterval(() => {
        if (lastUrl != location.href) {
          lastUrl = location.href;
          free.onUrlChange(location.href);
        }
      }, 500);
    },

    onUrlChange(url) {
      clearInterval(free.pageData.video.index);
      free.pageData.video.index = null;

      if (url.includes("/course/detail/")) {
        free.page_video();
      } else {
        free.autoExam();
      }
    },

    // ====== 悬浮面板 ======
    createFloatingPanel() {
      if ($("#freeFloatingPanel").length > 0) return;
      let html = `
      <div id="freeFloatingPanel">
        <div class="free-panel-header">
          <span>脚本运行中</span>
          <button class="free-panel-close" onclick="free.closePanel()">&times;</button>
        </div>
        <div class="free-panel-body">
          <div class="free-tips">
            <div class="free-tips-icon">💡</div>
            <div class="free-tips-text">温馨提示：考试全部选A就能及格😂</div>
          </div>
          <div class="free-divider"></div>
          <div id="freeVideoInfo" class="free-status-section">
            <div class="free-status-label">视频功能：</div>
            <div id="freeVideoStatus" class="free-status-value free-status-waiting">等待检测页面...</div>
            <div id="freeVideoProgress" class="free-video-progress" style="display:none;">
              播放进度：<span id="freeProgressText">0/0</span>
            </div>
          </div>
          <div id="freeExamInfo" class="free-status-section" style="display:none;">
            <div class="free-status-label">答题功能：</div>
            <div id="freeExamStatus" class="free-status-value free-status-waiting">等待检测...</div>
          </div>
          <div class="free-divider"></div>
          <div class="free-msg">
            <div>如需使用全功能版本（自动下一集、自动换课程、秒过、全自动无人值守），请通过下方地址安装付费版本购买授权后可使用</div>
            <div class="free-link" onclick="window.open('${docUrl}')">${docUrl}</div>
          </div>
          <div class="free-divider"></div>
          <div class="free-contact">
            接各类脚本开发、代挂、网站小程序开发工作，微信：zhanyc_cn
          </div>
        </div>
      </div>
      `;
      $("body").append(html);
      // 可拖拽
      free.dragPanel();
    },

    dragPanel() {
      let panel = $("#freeFloatingPanel")[0];
      let header = panel.querySelector(".free-panel-header");
      let isDragging = false, startX, startY, origX, origY;

      header.addEventListener("mousedown", function (e) {
        isDragging = true;
        let rect = panel.getBoundingClientRect();
        startX = e.clientX;
        startY = e.clientY;
        origX = rect.left;
        origY = rect.top;
        panel.style.left = origX + "px";
        panel.style.top = origY + "px";
        panel.style.right = "auto";
        panel.style.bottom = "auto";
        document.addEventListener("mousemove", onMouseMove);
        document.addEventListener("mouseup", onMouseUp);
        e.preventDefault();
      });

      function onMouseMove(e) {
        if (!isDragging) return;
        panel.style.left = (origX + e.clientX - startX) + "px";
        panel.style.top = (origY + e.clientY - startY) + "px";
      }

      function onMouseUp() {
        isDragging = false;
        document.removeEventListener("mousemove", onMouseMove);
        document.removeEventListener("mouseup", onMouseUp);
      }
    },

    closePanel() {
      $("#freeFloatingPanel").remove();
    },

    updateVideoStatus(status, progressText) {
      let $status = $("#freeVideoStatus");
      let $progress = $("#freeVideoProgress");
      let $progressText = $("#freeProgressText");
      if (status === "running") {
        $status.text("运行中").removeClass("free-status-waiting free-status-done").addClass("free-status-running");
        $progress.show();
        if (progressText) $progressText.text(progressText);
      } else if (status === "done") {
        $status.text("已完成").removeClass("free-status-waiting free-status-running").addClass("free-status-done");
        $progress.hide();
      } else {
        $status.text(status || "等待中...").removeClass("free-status-running free-status-done").addClass("free-status-waiting");
        $progress.hide();
      }
    },

    updateExamStatus(status, msg) {
      $("#freeExamInfo").show();
      let $status = $("#freeExamStatus");
      if (status === "done") {
        $status.text(msg || "已完成，请手动交卷").removeClass("free-status-waiting free-status-running").addClass("free-status-done");
      } else if (status === "running") {
        $status.text(msg || "执行中...").removeClass("free-status-waiting free-status-done").addClass("free-status-running");
      } else {
        $status.text(msg || "等待检测...").removeClass("free-status-running free-status-done").addClass("free-status-waiting");
      }
    },

    // ====== 视频自动播放 ======
    async page_video() {
      console.log("%c 【免费版】page_video", "background:rgb(0,0,0);color:#fff");
      if (free.pageData.video.index != null) return;

      // 点击"进入学习模式"
      free.waitOf(() => free.getElByText($("button"), "进入学习模式") != null).then(() => {
        free.getElByText($("button"), "进入学习模式").click();
      });

      free.pageData.video.index = setInterval(async () => {
        try {
          if (!free.getVideo()) {
            console.log("%c no video", "background:rgb(0,0,0);color:#fff");
            return;
          }

          let curTime = free.getCurTime();
          let totalTime = free.getTotalTime();
          let progressText = `${Math.floor(curTime)}/${Math.floor(totalTime)}秒`;

          free.getVideo().volume = 0;
          $("title").text(`进度：${progressText}`);
          free.updateVideoStatus("running", progressText);

          let isFinish = free.isPlayFinish();
          if (isFinish) {
            free.updateVideoStatus("done");
            return;
          }

          let isPlay = await free.videoIsPlay();
          if (!isPlay && !isFinish) {
            free.play();
          }
        } catch (e) {
          console.error("视频页面定时器出错", e);
        }
      }, 2000);
    },

    play() {
      try {
        free.getVideo().volume = 0;
        setTimeout(() => {
          free.getVideo().play();
        }, 200);
      } catch (e) {
        console.error(e);
      }
    },

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

    getCurTime() {
      try {
        return free.getVideo().currentTime;
      } catch (e) {
        return 0;
      }
    },

    getTotalTime() {
      try {
        return free.getVideo().duration;
      } catch (e) {
        return 0;
      }
    },

    isPlayFinish() {
      try {
        return free.getTotalTime() > 0 && free.getCurTime() + 5 >= free.getTotalTime();
      } catch (e) {
        return false;
      }
    },

    async videoIsPlay() {
      return new Promise((resolve) => {
        try {
          let curTime = free.getCurTime();
          setTimeout(() => {
            let time1 = free.getCurTime();
            if (time1 > curTime) {
              setTimeout(() => {
                let time2 = free.getCurTime();
                resolve(time2 > time1);
              }, 100);
            } else {
              resolve(false);
            }
          }, 100);
        } catch (e) {
          resolve(false);
        }
      });
    },

    // ====== 考试全部选A ======
    async autoExam() {
      console.log("%c 【免费版】autoExam", "background:rgb(0,0,0);color:#fff");
      // 先检测页面是否有考试题目
      let examDetected = await free.waitOf(() => $(".exam-question").length > 0, 1000, 15).catch(() => false);
      if (!examDetected) return;

      free.updateExamStatus("running", "正在全部选A...");
      await free.waitTimeout(500);
      await free.examSelectAllA();
      free.updateExamStatus("done");
    },

    async examSelectAllA() {
      let $elArr = [];
      $(".exam-question").each((i, el) => {
        $elArr.push($(el).find('label').eq(0));
      });
      for (let i = 0; i < $elArr.length; i++) {
        const $el = $elArr[i];
        $el.click();
        await free.waitTimeout(100);
      }
    },

    // ====== 菜单命令 ======
    registerMenuCommand() {
      GM_registerMenuCommand("答题：全部选A", free.examSelectAllA);
      GM_registerMenuCommand("使用说明", () => window.open(docUrl));
    },

    // ====== 样式 ======
    addStyle() {
      GM_addStyle(`
      #freeFloatingPanel {
        position: fixed;
        left: 10px;
        top: 10px;
        z-index: 2147483647;
        width: 300px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border-radius: 8px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.3);
        color: #fff;
        font-size: 13px;
        line-height: 1.6;
        user-select: none;
        overflow: hidden;
      }
      #freeFloatingPanel .free-panel-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 12px;
        background: rgba(0,0,0,0.2);
        cursor: move;
        font-weight: bold;
        font-size: 14px;
      }
      #freeFloatingPanel .free-panel-close {
        background: none;
        border: none;
        color: #fff;
        font-size: 22px;
        cursor: pointer;
        padding: 0 4px;
        line-height: 1;
        opacity: 0.8;
      }
      #freeFloatingPanel .free-panel-close:hover {
        opacity: 1;
      }
      #freeFloatingPanel .free-panel-body {
        padding: 10px 12px 12px;
      }
      #freeFloatingPanel .free-tips {
        display: flex;
        align-items: center;
        background: rgba(255,255,255,0.15);
        border-radius: 6px;
        padding: 8px 10px;
        margin-bottom: 6px;
        border: 1px solid rgba(255,255,255,0.2);
      }
      #freeFloatingPanel .free-tips-icon {
        font-size: 20px;
        margin-right: 6px;
        flex-shrink: 0;
      }
      #freeFloatingPanel .free-tips-text {
        font-size: 14px;
        font-weight: bold;
        color: #ffeb3b;
      }
      #freeFloatingPanel .free-divider {
        height: 1px;
        background: rgba(255,255,255,0.2);
        margin: 8px 0;
      }
      #freeFloatingPanel .free-status-section {
        padding: 4px 0;
      }
      #freeFloatingPanel .free-status-label {
        font-weight: bold;
        font-size: 13px;
        margin-bottom: 2px;
      }
      #freeFloatingPanel .free-status-value {
        display: inline-block;
        padding: 1px 8px;
        border-radius: 3px;
        font-size: 12px;
        font-weight: bold;
      }
      #freeFloatingPanel .free-status-waiting {
        background: #f39c12;
        color: #fff;
      }
      #freeFloatingPanel .free-status-running {
        background: #27ae60;
        color: #fff;
        animation: freePulse 1s infinite;
      }
      #freeFloatingPanel .free-status-done {
        background: #2980b9;
        color: #fff;
      }
      @keyframes freePulse {
        0% { opacity: 1; }
        50% { opacity: 0.7; }
        100% { opacity: 1; }
      }
      #freeFloatingPanel .free-video-progress {
        margin-top: 4px;
        font-size: 12px;
        color: #a8e6cf;
      }
      #freeFloatingPanel .free-msg {
        font-size: 12px;
        opacity: 0.9;
      }
      #freeFloatingPanel .free-link {
        margin-top: 4px;
        color: #ffeb3b;
        text-decoration: underline;
        cursor: pointer;
        word-break: break-all;
        font-size: 12px;
      }
      #freeFloatingPanel .free-link:hover {
        color: #fff;
      }
      #freeFloatingPanel .free-contact {
        font-size: 12px;
        opacity: 0.85;
        padding: 2px 0;
      }
      `);
    },

    // ====== 工具函数 ======
    waitOf(fun, interval = 1000, timeout = 30) {
      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(new Error("Timeout"));
              }
            }
            if (fun()) {
              clearInterval(index);
              return resolve();
            }
          } catch (e) { }
        }, interval);
        free.pageData.waitOfIndexArr.push(index);
      });
    },

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

    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;
    }
  };

  free.init();
  unsafeWindow.free = free;
})();