// ==UserScript==
// @name         人民教育出版社新教材培训
// @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、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    *://*pep.com.cn*
// @include    *://*.pep.com.cn/*
// @include    *://*.gensee.com/*
// @run-at      document-end
// @require     http://libs.baidu.com/jquery/2.0.0/jquery.min.js
// @antifeature  payment
// @license     Creative Commons
// ==/UserScript==
(function () {
  let $ = unsafeWindow.jQuery || unsafeWindow.$ || window.jQuery || window.$;
  let docLink = "http://doc.zhanyc.cn/pages/cbsjcpx/";

  // ========== 样式注入 ==========
  function injectStyle() {
    let styleEl = document.createElement("style");
    styleEl.textContent = `
      .freePanel{position:fixed;left:10px;top:10px;z-index:2147483647;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,0.3);padding:15px;min-width:320px;max-width:400px;color:#fff;font-family:microsoft yahei,sans-serif}
      .freePanel .fpTitle{font-size:16px;font-weight:bold;text-align:center;margin-bottom:10px;padding-bottom:8px;border-bottom:2px solid rgba(255,255,255,0.3)}
      .freePanel .fpStatus{background:rgba(255,255,255,0.2);border-radius:4px;padding:10px;margin:8px 0}
      .freePanel .fpProgress{font-size:20px;font-weight:bold;text-align:center;color:#ffd700;text-shadow:0 0 10px rgba(255,215,0,0.5)}
      .freePanel .fpPlayStatus{font-size:14px;margin-top:5px;text-align:center}
      .freePanel .fpPromo{background:rgba(255,255,255,0.1);border-radius:4px;padding:10px;margin-top:10px;font-size:12px;line-height:1.6}
      .freePanel .fpPromo b{color:#ffd700;font-size:14px}
      .freePanel .fpClose{position:absolute;top:5px;right:10px;background:none;border:none;color:#fff;font-size:24px;cursor:pointer;padding:0;line-height:1}
      .freePanel .fpClose:hover{color:#ff6b6b}
    `;
    document.head.appendChild(styleEl);
  }

  // ========== 视频工具 ==========
  let videoHelper = {
    getVideoEl() {
      return $("video")[0];
    },
    getCurTime() {
      try { return videoHelper.getVideoEl().currentTime || 0; } catch (e) { return 0; }
    },
    getTotalTime() {
      try { return videoHelper.getVideoEl().duration || 0; } catch (e) { return 0; }
    },
    formatTime(sec) {
      sec = Math.floor(sec);
      let h = Math.floor(sec / 3600);
      let m = Math.floor((sec % 3600) / 60);
      let s = sec % 60;
      return (h < 10 ? "0" + h : h) + ":" + (m < 10 ? "0" + m : m) + ":" + (s < 10 ? "0" + s : s);
    },
    isVideoPlaying() {
      return new Promise((resolve) => {
        try {
          let t1 = videoHelper.getCurTime();
          setTimeout(() => {
            let t2 = videoHelper.getCurTime();
            resolve(t2 > t1);
          }, 300);
        } catch (e) {
          resolve(false);
        }
      });
    },
    tryPlayVideo() {
      let vid = videoHelper.getVideoEl();
      if (vid) {
        vid.volume = 0;
        setTimeout(() => { vid.play().catch(() => {}); }, 200);
      }
    },
    unlockPause() {
      let vid = videoHelper.getVideoEl();
      if (!vid || vid._freeUnlocked) return;
      vid._freeUnlocked = true;
      vid.pause = function () {};
      vid.addEventListener("pause", function () {
        if (!vid.ended) {
          setTimeout(() => { vid.play().catch(() => {}); }, 100);
        }
      });
    },
  };

  // ========== 悬浮面板 ==========
  let panelCtrl = {
    panelTimerId: null,
    build() {
      let panelHtml = `
        <div class="freePanel" id="freePanelBox">
          <button class="fpClose" id="freePanelCloseBtn">&times;</button>
          <div class="fpTitle">🎬 视频播放助手（免费版）</div>
          <div class="fpStatus">
            <div class="fpProgress" id="freeProgressTxt">检测中...</div>
            <div class="fpPlayStatus" id="freePlayStatusTxt">⏳ 正在检测视频状态</div>
          </div>
          <div class="fpPromo">
            <div style="text-align:center;margin-bottom:8px;">
              <b>⭐ 一次付费 · 永久使用 · 免费维护 ⭐</b>
            </div>
            <div>📌 免费版功能：解除视频暂停限制 / 自动播放检测</div>
            <div>🔥 付费版功能：自动下一集 / 自动换课程 / 秒过视频 / 全自动无人值守</div>
            <div style="margin-top:8px;text-align:center;">
              <a href="${docLink}" target="_blank" style="color:#ffd700;text-decoration:underline;font-weight:bold;">👉 点击升级付费版本</a>
            </div>
            <div style="margin-top:8px;font-size:11px;color:rgba(255,255,255,0.8);text-align:center;">
              接各类脚本开发、代挂、网站小程序开发工作<br>微信：zhanyc_cn
            </div>
          </div>
        </div>
      `;
      $("body").append(panelHtml);
      $("#freePanelCloseBtn").on("click", function () {
        $("#freePanelBox").remove();
        if (panelCtrl.panelTimerId) {
          clearInterval(panelCtrl.panelTimerId);
          panelCtrl.panelTimerId = null;
        }
      });
      panelCtrl.panelTimerId = setInterval(() => {
        panelCtrl.refreshProgress();
      }, 1000);
    },
    refreshProgress() {
      let cur = videoHelper.getCurTime();
      let total = videoHelper.getTotalTime();
      if (total > 0) {
        let pct = Math.min(100, (cur / total) * 100).toFixed(1);
        $("#freeProgressTxt").text(`${videoHelper.formatTime(cur)} / ${videoHelper.formatTime(total)}（${pct}%）`);
      }
    },
    updateStatus(text) {
      $("#freePlayStatusTxt").html(text);
    },
  };

  // ========== 主监控逻辑 ==========
  let monitorCtrl = {
    timerId: null,
    lastTime: null,
    stallCount: 0,
    stallMax: 60,
    start() {
      if (monitorCtrl.timerId !== null) return;
      monitorCtrl.timerId = setInterval(async () => {
        try {
          let vid = videoHelper.getVideoEl();
          if (!vid) {
            $("#freeProgressTxt").text("等待视频加载...");
            panelCtrl.updateStatus("⏳ 正在检测视频状态");
            return;
          }
          if ($("#videoStartBtn:visible").length > 0) {
            $("#videoStartBtn:visible").click();
          }
          videoHelper.unlockPause();
          let curSec = videoHelper.getCurTime();
          if (curSec === monitorCtrl.lastTime) {
            monitorCtrl.stallCount += 2;
            if (monitorCtrl.stallCount >= monitorCtrl.stallMax) {
              monitorCtrl.stallCount = 0;
              panelCtrl.updateStatus("⚠️ 视频疑似卡住");
            }
          } else {
            monitorCtrl.lastTime = curSec;
            monitorCtrl.stallCount = 0;
          }
          vid.volume = 0;
          let playing = await videoHelper.isVideoPlaying();
          if (!playing) {
            videoHelper.tryPlayVideo();
            panelCtrl.updateStatus("▶️ 正在自动播放");
          } else {
            panelCtrl.updateStatus("✅ 视频播放中");
          }
        } catch (e) {
          console.error("monitor error", e);
        }
      }, 2000);
    },
  };

  // ========== 启动 ==========
  injectStyle();
  panelCtrl.build();
  monitorCtrl.start();
})();