// ==UserScript==
// @name         江苏开放全自动化【公益版】
// @namespace    http://tampermonkey.net/
// @version      1.0.1
// @description  江苏开放全自动化【可加速及自动下一页】
// @author       一心向善
// @match        *://xuexi.jsou.cn/*
// @match        *://*.jsou.cn/*
// @run-at       document-idle
// @grant        none
// @noframes
// @license MIT
// ==/UserScript==

/**
 * 江苏开放全自动化【公益版】辅助脚本 v1.0.1
 *
 * v1.0→v1.0.1 修复：
 *  1. 持久化运行状态（localStorage）— 页面跳转后自动恢复"启动中"状态
 *  2. 增加最小化/恢复按钮
 *  3. 在持久化模式下自动重启
 *
 */

(function () {
    // 注意：不要 use strict，否则给 XHR prototype 赋值会抛 TypeError
    // 非严格模式下赋值会静默失败，不影响批量调用原生 sendHeartBeatAjax()

    var LS_KEY = 'studyHelperV52';

    // ============ 配置（从 localStorage 恢复）============
    function loadConfig() {
        try {
            var saved = JSON.parse(localStorage.getItem(LS_KEY) || 'null');
            if (saved) return saved;
        } catch (e) {}
        return null;
    }
    function saveConfig() {
        try { localStorage.setItem(LS_KEY, JSON.stringify(CONFIG)); } catch (e) {}
    }

    var CONFIG = Object.assign({
        docHeartbeats: 600,
        batchInterval: 600,
        videoSpeed: 1.0,
        autoNextDelay: 1500,
        keepAliveInterval: 10000
    }, loadConfig() || {});

    var state = {
        running: false,
        processing: false,
        currentResourceType: '',
        currentActivityId: '',
        heartbeatCount: 0,
        successCount: 0,
        failCount: 0,
        startTime: null,
        onlineTimer: null,
        speedTimer: null,
        xhrHooked: false,
        heartbeatSent: 0,
        heartbeatTarget: 0,
        waitingForVideo: false,
        moObserver: null,
        batchStartTs: 0,
        minimized: false
    };

    // 持久化运行状态 —— 如果上次是运行中，这次自动恢复
    function checkAutoResume() {
        try {
            var saved = JSON.parse(localStorage.getItem(LS_KEY + '_running') || 'null');
            if (saved && saved.running) {
                log('🔁 检测到上次运行中，自动恢复...', 'auto');
                // 恢复配置
                CONFIG = Object.assign(CONFIG, saved.config || {});
                CONFIG.videoSpeed = parseFloat(CONFIG.videoSpeed) || 1.0;
                CONFIG.docHeartbeats = parseInt(CONFIG.docHeartbeats) || 40;
                // 更新面板控件
                setTimeout(function () {
                    var inp = document.getElementById('cfg-doc-hearts');
                    var sel = document.getElementById('cfg-video-speed');
                    if (inp) inp.value = CONFIG.docHeartbeats;
                    if (sel) sel.value = String(CONFIG.videoSpeed);
                    updateTimeLabels();
                    // 启动自动流程
                    startAuto(true); // autoResume=true 时不重复设置 CONFIG
                }, 1500);
            }
        } catch (e) {}
    }
    function persistRunning(running) {
        try {
            if (running) {
                localStorage.setItem(LS_KEY + '_running', JSON.stringify({
                    running: true, config: CONFIG, startTime: Date.now()
                }));
            } else {
                localStorage.removeItem(LS_KEY + '_running');
            }
        } catch (e) {}
    }

    function log(msg, type) {
        var t = new Date().toLocaleTimeString();
        var c = { success:'#52c41a', error:'#f5222d', warn:'#faad14', info:'#1890ff', batch:'#722ed1', auto:'#eb2f96' }[type] || '#333';
        console.log('%c[' + t + '] ' + msg, 'color:' + c);
    }

    // ============ 核心工具 ============

    function getResourceType() {
        try {
            if (typeof dataHeart !== 'undefined') {
                if (dataHeart.type == 21) return '文档';
                if (dataHeart.type == 2 || dataHeart.type == 28) return '视频';
                if (dataHeart.type == 1) return '资源';
            }
        } catch (e) {}
        var v = getVideoElement();
        if (v) return '视频';
        return '资源';
    }

    function getCurrentActivityId() {
        try {
            if (typeof dataHeart !== 'undefined' && dataHeart.activityId) return dataHeart.activityId;
        } catch (e) {}
        return '';
    }

    function getVideoElement() {
        var videos = document.querySelectorAll('video');
        for (var i = 0; i < videos.length; i++) {
            if (videos[i].offsetParent !== null || videos[i].duration > 0) return videos[i];
        }
        if (videos.length > 0) return videos[0];
        var iframes = document.querySelectorAll('iframe');
        for (var j = 0; j < iframes.length; j++) {
            try { var d = iframes[j].contentDocument || iframes[j].contentWindow.document;
                if (d) { var v = d.querySelector('video'); if (v) return v; } } catch (e) {}
        }
        return null;
    }

    // ============ 心跳 ============

    function fireOneHeartbeat() {
        // 🔒 停止后不再发任何心跳
        if (!state.running) return false;
        try {
            if (typeof dataHeart !== 'undefined') {
                dataHeart.isResourcePage = true;
                if ((dataHeart.type == 2 || dataHeart.type == 28) && dataHeart.playStatus === false) {
                    return false;
                }
            }
            if (typeof sendHeartBeatAjax === 'function') {
                sendHeartBeatAjax();
                return true;
            }
            if (typeof $ !== 'undefined' && typeof heartbeatUrl !== 'undefined' && heartbeatUrl) {
                $.ajax({ type:'POST', url:heartbeatUrl, data:dataHeart, cache:false });
                return true;
            }
            return false;
        } catch (e) { return false; }
    }

    function fireBatch(n, onDone) {
        var sent = 0, total = n, interval = CONFIG.batchInterval;
        state.heartbeatTarget = total;
        state.heartbeatSent = 0;
        state.batchStartTs = Date.now();

        showProgressBar();
        updateProgress(0, total);

        function sendNext() {
            // 🔒 停止后立刻中断整个批量流程
            if (!state.running) {
                hideProgressBar();
                log('🛑 批量心跳已被手动停止', 'warn');
                return;
            }
            if (sent >= total) {
                state.heartbeatSent = total;
                state.heartbeatTarget = 0;
                hideProgressBar();
                log('✅ 本课件心跳 ' + total + '/' + total + ' 完成', 'batch');
                updatePanel();
                if (typeof onDone === 'function') onDone();
                return;
            }
            fireOneHeartbeat();
            sent++;
            state.heartbeatCount++;
            state.heartbeatSent = sent;
            updateProgress(sent, total);
            if (sent % 20 === 0 || sent === total) {
                log('📊 心跳进度 ' + sent + '/' + total, 'info');
            }
            updatePanel();
            setTimeout(sendNext, interval);
        }
        sendNext();
    }

    // ============ 进度条 ============

    function showProgressBar() {
        var box = document.getElementById('progress-box');
        if (box) box.style.display = 'block';
    }
    function hideProgressBar() {
        var box = document.getElementById('progress-box');
        if (box) box.style.display = 'none';
    }
    function updateProgress(done, total) {
        var bar = document.getElementById('progress-bar');
        var pct = document.getElementById('progress-pct');
        var dEl = document.getElementById('progress-done');
        var tEl = document.getElementById('progress-total');
        var eta = document.getElementById('progress-eta');
        if (bar) bar.style.width = Math.round(done/total*100) + '%';
        if (pct) pct.textContent = Math.round(done/total*100) + '%';
        if (dEl) dEl.textContent = done;
        if (tEl) tEl.textContent = total;
        if (eta) {
            var elapsed = (Date.now() - state.batchStartTs) / 1000;
            var avg = done > 0 ? elapsed / done : 0;
            var remain = Math.max(0, avg * (total - done));
            eta.textContent = '≈ ' + Math.round(remain) + '秒剩余';
        }
    }

    // ============ XHR 拦截（try/catch 保护）===========

    function hookXHR() {
        if (state.xhrHooked) return;
        state.xhrHooked = true;
        try {
            var origOpen = XMLHttpRequest.prototype.open;
            var origSend = XMLHttpRequest.prototype.send;
            XMLHttpRequest.prototype.open = function (m, u) { this._url = u; return origOpen.apply(this, arguments); };
            XMLHttpRequest.prototype.send = function () {
                var self = this;
                this.addEventListener('load', function () {
                    if (self._url && self._url.indexOf('heartbeat') > -1 && self._url.indexOf('learningBehavior') > -1) {
                        try {
                            var resp = JSON.parse(self.responseText);
                            if (resp && resp.code === 'SUCCESS') {
                                state.successCount++;
                                var te = document.getElementById('stuResourceViewTime');
                                if (te) {
                                    var t = parseInt(te.dataset.time || te.getAttribute('data-time') || '0');
                                    t += 30;
                                    te.dataset.time = t;
                                    if (typeof formatLength === 'function') te.innerText = formatLength(t);
                                }
                            } else { state.failCount++; }
                        } catch (e) { state.successCount++; }
                        updatePanel();
                    }
                });
                this.addEventListener('error', function () {
                    if (self._url && self._url.indexOf('heartbeat') > -1) { state.failCount++; updatePanel(); }
                });
                return origSend.apply(this, arguments);
            };
            log('🔌 XHR 拦截器已激活', 'info');
        } catch (e) {
            log('🔌 XHR 拦截器跳过（Chrome 限制），不影响批量发心跳', 'warn');
        }
    }

    // ============ 保活 ============

    function keepAlive() {
        try {
            if (typeof inactiveSeconds !== 'undefined') inactiveSeconds = 0;
            if (typeof mouseIsOn !== 'undefined') mouseIsOn = true;
            if (typeof isHeartbeatStop !== 'undefined') isHeartbeatStop = false;
            if (typeof dataHeart !== 'undefined') dataHeart.isResourcePage = true;
        } catch (e) {}
        try {
            var evt = new MouseEvent('mousemove', { clientX: Math.random()*1000, clientY: Math.random()*500, bubbles: true });
            document.dispatchEvent(evt);
        } catch (e) {}
    }

    // ============ 视频：自动倍速 + 自动播放 + MutationObserver 持久化 ============

    function applyVideoToElement(v) {
        if (!v || v._helperApplied) return;
        v._helperApplied = true;
        v._endedBound = false;

        v.playbackRate = CONFIG.videoSpeed;
        try { v.muted = true; } catch (e) {}
        if (v.paused) { v.play().catch(function(){}); }

        log('🎬 自动应用倍速 ' + CONFIG.videoSpeed + 'x + 播放', 'success');

        // 持续维持速度（每秒检查一次）
        var speedHold = setInterval(function () {
            if (!document.body.contains(v)) { clearInterval(speedHold); return; }
            if (Math.abs(v.playbackRate - CONFIG.videoSpeed) > 0.01) {
                v.playbackRate = CONFIG.videoSpeed;
                try { v.muted = true; } catch (e) {}
            }
            if (v.paused && state.running) { v.play().catch(function(){}); }
        }, 2000);

        // ended 事件：只绑一次
        v.addEventListener('ended', function onEnded() {
            if (!state.running) return;
            if (v._endedBound) return;
            v._endedBound = true;
            log('📺 视频播放完毕，下一节', 'info');
            state.waitingForVideo = false;
            setTimeout(autoNextResource, CONFIG.autoNextDelay);
        });

        // 卡住检测
        var lastTime = v.currentTime, stallCount = 0;
        var stallTimer = setInterval(function () {
            if (!document.body.contains(v)) { clearInterval(stallTimer); return; }
            if (v.paused || v.ended) return;
            if (Math.abs(v.currentTime - lastTime) < 0.5) {
                stallCount++;
                if (stallCount > 6) {
                    log('⚠️ 视频长时间没进度，尝试跳过', 'warn');
                    try { v.currentTime = Math.max(0, v.duration - 2); } catch (e) {}
                    stallCount = 0;
                }
            } else { stallCount = 0; }
            lastTime = v.currentTime;
        }, 2000);
    }

    function startVideoObserver() {
        if (state.moObserver) { state.moObserver.disconnect(); state.moObserver = null; }
        state.moObserver = new MutationObserver(function (mutations) {
            document.querySelectorAll('video').forEach(applyVideoToElement);
            document.querySelectorAll('iframe').forEach(function (iframe) {
                try {
                    var d = iframe.contentDocument || iframe.contentWindow.document;
                    if (d) d.querySelectorAll('video').forEach(applyVideoToElement);
                } catch (e) {}
            });
        });
        state.moObserver.observe(document.body, { childList: true, subtree: true });
        document.querySelectorAll('video').forEach(applyVideoToElement);
        log('👀 MutationObserver 已启动，所有视频自动应用倍速 ' + CONFIG.videoSpeed + 'x', 'info');
    }

    function stopVideoObserver() {
        if (state.moObserver) { state.moObserver.disconnect(); state.moObserver = null; }
    }

    function setupVideo() {
        var v = getVideoElement();
        if (!v) { log('❌ 没找到视频元素', 'error'); return false; }
        applyVideoToElement(v);
        if (v.duration > 0 && (v.duration - v.currentTime) < 5) {
            log('⚠️ 视频接近结尾，直接下一节', 'warn');
            setTimeout(autoNextResource, 1000);
        }
        return true;
    }

    function waitForVideoEnd() {
        if (!state.running) { state.waitingForVideo = false; return; }
        var v = getVideoElement();
        if (!v) { state.waitingForVideo = false; return; }
        if (!v.paused && v.duration > 0 && v.currentTime < v.duration - 1) {
            setTimeout(waitForVideoEnd, 3000);
            return;
        }
        if (v.duration > 0 && v.currentTime >= v.duration - 1) {
            log('📺 视频播完，下一节', 'info');
            state.waitingForVideo = false;
            setTimeout(autoNextResource, CONFIG.autoNextDelay);
            return;
        }
        if (v.paused) { v.play().catch(function(){}); setTimeout(waitForVideoEnd, 2000); return; }
        setTimeout(waitForVideoEnd, 3000);
    }

    // ============ 找下一节 ============

    function autoNextResource() {
        log('🔍 正在查找下一节...', 'auto');
        keepAlive();

        var selectors = [
            '.chapter-item', '.section-item', '.course-item', '.resource-item',
            '.catalog-item', '.menu-item', '.node-item', '.learn-item',
            'li[data-id]', 'li[data-fid]', 'li.activity-item', 'li.node',
            '.node', '.tree-node', '.slick-current + .slick-slide'
        ];

        var foundActive = false;
        for (var s = 0; s < selectors.length; s++) {
            var items = document.querySelectorAll(selectors[s]);
            if (items.length < 2) continue;
            for (var j = 0; j < items.length; j++) {
                var cls = (items[j].className || '') + ' ' + (items[j].getAttribute('class') || '');
                var style = items[j].getAttribute('style') || '';
                var isCurrent = cls.indexOf('active') > -1 || cls.indexOf('current') > -1 ||
                    cls.indexOf('playing') > -1 || cls.indexOf('selected') > -1 ||
                    style.indexOf('rgb(24, 144, 255)') > -1 || style.indexOf('color:#1890ff') > -1 ||
                    style.indexOf('color: rgb(24, 144, 255)') > -1;
                if (isCurrent) { foundActive = true; continue; }
                if (foundActive && items[j].offsetParent !== null && items[j].clientHeight > 0) {
                    log('🎯 点击下一节: ' + (items[j].innerText || '').trim().substring(0, 40), 'auto');
                    items[j].click();
                    scheduleHandle();
                    return true;
                }
            }
        }

        var btns = document.querySelectorAll('a, button, span, div');
        for (var k = 0; k < btns.length; k++) {
            var t = (btns[k].innerText || '').trim();
            if (t === '下一页' || t === '下一节' || t === '下一讲' || t === '下一个' || t === '下一项' || t === '▶' || t === '›') {
                log('🎯 点击按钮: ' + t, 'auto');
                btns[k].click();
                scheduleHandle();
                return true;
            }
        }

        log('❌ 没找到下一节', 'error');
        return false;
    }

    function scheduleHandle() {
        state.processing = false;
        if (state.speedTimer) { clearInterval(state.speedTimer); state.speedTimer = null; }
        keepAlive();
        setTimeout(function () {
            var newAct = getCurrentActivityId();
            log('🔄 页面加载中... activityId: ' + (newAct ? newAct.substring(0,12)+'...' : '未获取'), 'info');
            handleCurrentResource();
        }, 3000);
    }

    // ============ 主流程 ============

    function handleCurrentResource() {
        if (state.processing) return;
        state.processing = true;

        try {
            if (typeof dataHeart !== 'undefined') {
                dataHeart.isResourcePage = true;
                if (typeof isHeartbeatStop !== 'undefined') isHeartbeatStop = false;
            }
        } catch (e) {}

        var type = getResourceType();
        state.currentResourceType = type;
        var actId = getCurrentActivityId();
        state.currentActivityId = actId;

        log('═══════════════════════════════════', 'auto');
        log('📚 开始处理: [' + type + '] activityId=' + (actId ? actId.substring(0,12) + '...' : '(页面未加载)'), 'auto');

        if (!actId && type === '资源') {
            log('⏳ 等待页面加载（2秒后重试）...', 'info');
            setTimeout(function () { state.processing = false; handleCurrentResource(); }, 2000);
            return;
        }

        if (type === '视频') {
            log('🎬 视频课件，启动自动播放...', 'auto');
            var ok = setupVideo();
            if (ok) {
                state.processing = false;
                if (!state.waitingForVideo) { state.waitingForVideo = true; waitForVideoEnd(); }
            } else {
                log('⚠️ 视频启动失败，10秒后跳到下一节', 'warn');
                state.processing = false;
                setTimeout(autoNextResource, 10000);
            }
        } else {
            log('📄 ' + type + ' 课件，批量发 ' + CONFIG.docHeartbeats + ' 个心跳', 'batch');
            fireBatch(CONFIG.docHeartbeats, function () {
                log('✅ 本节加时完成 → 下一节', 'auto');
                state.processing = false;
                setTimeout(autoNextResource, CONFIG.autoNextDelay);
            });
        }
        updatePanel();
    }

    // ============ 控制面板 ============

    function createPanel() {
        var old = document.getElementById('study-helper-panel'); if (old) old.remove();
        var p = document.createElement('div');
        p.id = 'study-helper-panel';
        p.innerHTML =
            '<div style="position:fixed;top:50px;right:20px;width:340px;background:#fff;border:2px solid #722ed1;border-radius:10px;box-shadow:0 6px 20px rgba(0,0,0,.35);z-index:999999;font-family:\'Microsoft YaHei\',sans-serif;font-size:13px;user-select:none;">' +
                '<div id="ph" style="background:linear-gradient(135deg,#722ed1,#eb2f96);color:#fff;padding:10px 15px;border-radius:8px 8px 0 0;cursor:move;font-weight:bold;display:flex;justify-content:space-between;align-items:center;">' +
                    '<span>🎓 江开自动助手【教务合作】</span>' +
                    '<span style="display:flex;gap:8px;">' +
                        '<span id="pmin" style="cursor:pointer;font-size:16px;font-weight:bold;" title="最小化">—</span>' +
                        '<span id="pc" style="cursor:pointer;font-size:18px;" title="关闭">×</span>' +
                    '</span>' +
                '</div>' +
                '<div id="pbody" style="padding:12px 15px;max-height:88vh;overflow-y:auto;">' +

                    '<div style="background:#fff1f0;border:1px solid #ffa39e;padding:12px;border-radius:8px;margin-bottom:12px;">' +
                        '<div style="color:#f5222d;font-weight:bold;margin-bottom:8px;font-size:14px;">🚀 全自动模式</div>' +
                        '<label style="display:block;margin-bottom:4px;color:#333;font-weight:bold;">📄 文档/纯文本</label>' +
                        '<div style="margin-bottom:8px;display:flex;align-items:center;">' +
                            '<span>每个课件加 </span>' +
                            '<input id="cfg-doc-hearts" type="number" value="' + CONFIG.docHeartbeats + '" min="5" max="500" style="width:60px;padding:5px;border:1px solid #d9d9d9;border-radius:4px;font-weight:bold;margin:0 4px;">' +
                            '<span>个心跳（<span id="cfg-doc-time" style="color:#722ed1;font-weight:bold;">计算中</span>）</span>' +
                        '</div>' +
                        '<label style="display:block;margin-bottom:4px;color:#333;font-weight:bold;">🎬 视频课件</label>' +
                        '<div style="margin-bottom:10px;display:flex;align-items:center;">' +
                            '<span>倍速 </span>' +
                            '<select id="cfg-video-speed" style="padding:5px;border:1px solid #d9d9d9;border-radius:4px;margin:0 4px;">' +
                                '<option value="1"' + (CONFIG.videoSpeed==1?' selected':'') + '>1x</option>' +
                                '<option value="1.25"' + (CONFIG.videoSpeed==1.25?' selected':'') + '>1.25x</option>' +
                                '<option value="1.5"' + (CONFIG.videoSpeed==1.5?' selected':'') + '>1.5x</option>' +
                                '<option value="2"' + (CONFIG.videoSpeed==2?' selected':'') + '>2x</option>' +
                                '<option value="3"' + (CONFIG.videoSpeed==3?' selected':'') + '>3x</option>' +
                                '<option value="4"' + (CONFIG.videoSpeed==4?' selected':'') + '>4x</option>' +
                                '<option value="8"' + (CONFIG.videoSpeed==8?' selected':'') + '>8x</option>' +
                            '</select>' +
                            '<span>x 自动静音</span>' +
                        '</div>' +
                        '<button id="btn-auto" style="width:100%;padding:12px;border:none;border-radius:6px;background:linear-gradient(135deg,#f5222d,#eb2f96);color:#fff;font-size:15px;font-weight:bold;cursor:pointer;margin-bottom:6px;">▶ 启动全自动</button>' +
                        '<button id="btn-stop-auto" style="width:100%;padding:8px;border:none;border-radius:6px;background:#8c8c8c;color:#fff;cursor:pointer;display:none;">⏹ 停止全自动</button>' +
                    '</div>' +

                    '<div id="progress-box" style="background:#f6ffed;border:1px solid #b7eb8f;padding:10px;border-radius:6px;margin-bottom:12px;display:none;">' +
                        '<div style="display:flex;justify-content:space-between;margin-bottom:6px;">' +
                            '<span style="font-weight:bold;color:#389e0d;">⚡ 时长增加进度</span>' +
                            '<span id="progress-pct" style="color:#722ed1;font-weight:bold;">0%</span>' +
                        '</div>' +
                        '<div style="background:#f0f0f0;border-radius:10px;height:14px;overflow:hidden;margin-bottom:6px;">' +
                            '<div id="progress-bar" style="background:linear-gradient(90deg,#722ed1,#eb2f96);height:100%;width:0%;border-radius:10px;transition:width .15s ease;"></div>' +
                        '</div>' +
                        '<div style="font-size:12px;color:#666;display:flex;justify-content:space-between;">' +
                            '<span><span id="progress-done" style="color:#722ed1;font-weight:bold;">0</span> / <span id="progress-total">0</span> 个</span>' +
                            '<span id="progress-eta" style="color:#999;"></span>' +
                        '</div>' +
                    '</div>' +

                    '<div style="background:#f6ffed;border:1px solid #b7eb8f;padding:10px;border-radius:6px;margin-bottom:12px;">' +
                        '<div style="font-weight:bold;color:#389e0d;margin-bottom:6px;">📊 运行状态</div>' +
                        '<div style="font-size:12px;color:#666;">类型: <b id="st-type" style="color:#1890ff;">检测中</b></div>' +
                        '<div style="font-size:12px;color:#666;">页面时长: <b id="st-page-time" style="color:#52c41a;">读取中</b></div>' +
                        '<div style="font-size:12px;color:#666;">心跳总计: <b id="st-heart" style="color:#722ed1;">0</b> 成功 <b id="st-suc" style="color:#52c41a;">0</b> / 失败 <b id="st-fail" style="color:#f5222d;">0</b></div>' +
                        '<div style="font-size:12px;color:#666;">运行: <span id="st-run">00:00:00</span></div>' +
                    '</div>' +

                    '<div style="margin-bottom:8px;">' +
                        '<label style="display:flex;align-items:center;margin-bottom:4px;">' +
                            '<input id="cfg-keepalive" type="checkbox" checked style="margin-right:6px;">' +
                            '<span style="font-size:12px;">✅ 开启保活（防止页面计时停止）</span>' +
                        '</label>' +
                    '</div>' +

                    '<div style="margin-top:12px;padding:10px;background:#fff7e6;border:1px solid #ffd591;border-radius:6px;font-size:12px;line-height:1.7;text-align:center;">' +
                        '<div style="font-weight:bold;color:#ff4d4f;font-size:13px;margin-bottom:4px;">🔥 答题或教务批量合作 🔥</div>' +
                        '<div style="font-weight:bold;color:#ff4d4f;">联系Q：640105435</div>' +
                        '<div style="font-weight:bold;color:#1890ff;">Q群1：949193546 &nbsp;|&nbsp; Q群2：756253160</div>' +
                    '</div>' +
                '</div>' +
            '</div>';
        document.body.appendChild(p);

        document.getElementById('pc').onclick = function() { stopAll(); p.remove(); };
        document.getElementById('pmin').onclick = function() { toggleMinimize(); };
        document.getElementById('btn-auto').onclick = function() { startAuto(false); };
        document.getElementById('btn-stop-auto').onclick = stopAuto;

        ['cfg-doc-hearts'].forEach(function(id) {
            var el = document.getElementById(id);
            if (el) el.oninput = updateTimeLabels;
        });
        document.getElementById('cfg-video-speed').onchange = function() {
            CONFIG.videoSpeed = parseFloat(this.value);
            saveConfig();
            if (state.running) {
                document.querySelectorAll('video').forEach(function(v) {
                    v._helperApplied = false;
                    applyVideoToElement(v);
                });
            }
        };
        document.getElementById('cfg-doc-hearts').onchange = function() {
            CONFIG.docHeartbeats = parseInt(this.value) || 40;
            saveConfig();
        };

        makeDrag(document.getElementById('ph'), p);
        updateTimeLabels();
        updatePanel();
    }

    function toggleMinimize() {
        var body = document.getElementById('pbody');
        var header = document.getElementById('ph');
        var p = document.getElementById('study-helper-panel');
        var minBtn = document.getElementById('pmin');
        if (!body || !p) return;

        if (!state.minimized) {
            // 最小化：只保留标题栏
            body.style.display = 'none';
            p.style.width = '180px';
            p.style.height = 'auto';
            p.style.top = p.offsetTop + 'px';
            p.style.right = 'auto';
            minBtn.textContent = '□';
            minBtn.title = '展开';
            state.minimized = true;
        } else {
            // 恢复
            body.style.display = 'block';
            p.style.width = '340px';
            p.style.height = 'auto';
            minBtn.textContent = '—';
            minBtn.title = '最小化';
            state.minimized = false;
        }
    }

    function updateTimeLabels() {
        var d = parseInt(document.getElementById('cfg-doc-hearts').value) || 0;
        var dm = d * 30;
        var el1 = document.getElementById('cfg-doc-time');
        if (el1) el1.textContent = dm >= 60 ? Math.floor(dm/60) + '分钟' + (dm%60 > 0 ? dm%60 + '秒' : '') : dm + '秒';
    }

    // ============ 拖拽（终极版：全局 document 监听 + 坐标区域检测）============
    // 不依赖 header 的事件冒泡，也不依赖 pointer-events
    // 在 document 上监听所有鼠标事件，然后判断鼠标位置是否在 header 区域内
    function makeDrag(header, panel) {
        // 确保 header 有可见的 cursor
        header.style.cursor = 'move';
        header.style.userSelect = 'none';

        var dragging = false;
        var dragOffsetX = 0;
        var dragOffsetY = 0;

        // 获取 header 在视口中的矩形
        function headerRect() { return header.getBoundingClientRect(); }

        // 判断点 (x,y) 是否在 header 区域内
        function isInHeader(x, y) {
            var r = headerRect();
            return x >= r.left && x <= r.right && y >= r.top && y <= r.bottom;
        }

        // 判断点 (x,y) 是否在 header 内的 × 或 — 按钮上
        function isOnButtons(x, y) {
            var pc = document.getElementById('pc'), pmin = document.getElementById('pmin');
            if (pc) { var r = pc.getBoundingClientRect(); if (x >= r.left && x <= r.right && y >= r.top && y <= r.bottom) return true; }
            if (pmin) { var r2 = pmin.getBoundingClientRect(); if (x >= r2.left && x <= r2.right && y >= r2.top && y <= r2.bottom) return true; }
            return false;
        }

        // 全局监听：任何 mousedown 都检查一下
        document.addEventListener('mousedown', function (e) {
            if (isOnButtons(e.clientX, e.clientY)) return; // 点按钮不管
            if (isInHeader(e.clientX, e.clientY)) {
                dragging = true;
                // 记录偏移量
                var panelRect = panel.getBoundingClientRect();
                dragOffsetX = e.clientX - panelRect.left;
                dragOffsetY = e.clientY - panelRect.top;
                // 清除 right/bottom，改用 left/top 控制
                panel.style.right = 'auto';
                panel.style.bottom = 'auto';
                panel.style.left = panelRect.left + 'px';
                panel.style.top = panelRect.top + 'px';
                e.preventDefault();
            }
        }, true); // 捕获模式，最顶层

        document.addEventListener('mousemove', function (e) {
            if (!dragging) return;
            var x = e.clientX - dragOffsetX;
            var y = e.clientY - dragOffsetY;
            // 边界限制
            x = Math.max(0, Math.min(x, window.innerWidth - panel.offsetWidth - 5));
            y = Math.max(0, Math.min(y, window.innerHeight - 40));
            panel.style.left = x + 'px';
            panel.style.top = y + 'px';
            e.preventDefault();
        }, true);

        document.addEventListener('mouseup', function () { dragging = false; }, true);

        // 触摸端（手机）
        document.addEventListener('touchstart', function (e) {
            var p = e.touches[0]; if (!p) return;
            if (isOnButtons(p.clientX, p.clientY)) return;
            if (isInHeader(p.clientX, p.clientY)) {
                dragging = true;
                var panelRect = panel.getBoundingClientRect();
                dragOffsetX = p.clientX - panelRect.left;
                dragOffsetY = p.clientY - panelRect.top;
                panel.style.right = 'auto';
                panel.style.bottom = 'auto';
                panel.style.left = panelRect.left + 'px';
                panel.style.top = panelRect.top + 'px';
                e.preventDefault();
            }
        }, { passive: false, capture: true });

        document.addEventListener('touchmove', function (e) {
            if (!dragging) return;
            var p = e.touches[0]; if (!p) return;
            var x = p.clientX - dragOffsetX;
            var y = p.clientY - dragOffsetY;
            x = Math.max(0, Math.min(x, window.innerWidth - panel.offsetWidth - 5));
            y = Math.max(0, Math.min(y, window.innerHeight - 40));
            panel.style.left = x + 'px';
            panel.style.top = y + 'px';
            e.preventDefault();
        }, { passive: false, capture: true });

        document.addEventListener('touchend', function () { dragging = false; }, true);
    }

    function updatePanel() {
        var st = document.getElementById('st-type'), pt = document.getElementById('st-page-time'),
            su = document.getElementById('st-suc'), fa = document.getElementById('st-fail'),
            ru = document.getElementById('st-run'), he = document.getElementById('st-heart'),
            ba = document.getElementById('btn-auto'), bs = document.getElementById('btn-stop-auto');

        if (st) st.textContent = state.currentResourceType || getResourceType();
        var te = document.getElementById('stuResourceViewTime');
        if (pt) pt.textContent = te ? te.innerText : '未找到';
        if (su) su.textContent = state.successCount;
        if (fa) fa.textContent = state.failCount;
        if (he) he.textContent = state.heartbeatCount;

        if (ba && bs) {
            if (state.running) { ba.style.display = 'none'; bs.style.display = 'block'; }
            else { ba.style.display = 'block'; bs.style.display = 'none'; }
        }

        if (state.startTime && ru) {
            var s = Math.floor((Date.now() - state.startTime) / 1000);
            ru.textContent = (('0'+Math.floor(s/3600)).slice(-2)) + ':' + (('0'+Math.floor((s%3600)/60)).slice(-2)) + ':' + (('0'+(s%60)).slice(-2));
        }
    }

    // ============ 运行控制 ============

    function enableKeepAlive() {
        if (state.onlineTimer) return;
        try { if (typeof isHeartbeatStop !== 'undefined') isHeartbeatStop = false; } catch (e) {}
        hookXHR();
        state.onlineTimer = setInterval(keepAlive, CONFIG.keepAliveInterval);
        log('🔄 保活已开启（每' + (CONFIG.keepAliveInterval/1000) + '秒模拟在线）', 'info');
    }

    function disableKeepAlive() {
        if (state.onlineTimer) { clearInterval(state.onlineTimer); state.onlineTimer = null; }
    }

    function startAuto(autoResume) {
        if (state.running && !autoResume) return;

        var inp = document.getElementById('cfg-doc-hearts');
        var sel = document.getElementById('cfg-video-speed');

        if (!autoResume) {
            CONFIG.docHeartbeats = parseInt(inp.value) || 40;
            CONFIG.videoSpeed = parseFloat(sel.value) || 1.0;
        } else {
            // 自动恢复模式：确保控件显示正确值
            if (inp) inp.value = CONFIG.docHeartbeats;
            if (sel) sel.value = String(CONFIG.videoSpeed);
        }
        CONFIG.keepAliveInterval = document.getElementById('cfg-keepalive').checked ? 10000 : 999999;

        state.running = true;
        if (!autoResume) state.startTime = Date.now();

        saveConfig();            // 保存配置
        persistRunning(true);    // 持久化运行状态 ← 关键！

        if (CONFIG.keepAliveInterval < 999999) enableKeepAlive();

        // 启动 MutationObserver —— 自动给所有新 video 应用倍速/播放
        startVideoObserver();

        log('═══════════════════════════════════', 'auto');
        if (autoResume) {
            log('🔁 自动恢复运行中...', 'auto');
        } else {
            log('🚀 全自动启动！', 'auto');
        }
        log('   文档/资源: 每个课件 ' + CONFIG.docHeartbeats + ' 个心跳（' + (CONFIG.docHeartbeats*30) + '秒）', 'auto');
        log('   视频: ' + CONFIG.videoSpeed + 'x 倍速 + 静音 + 自动播放（持久化）', 'auto');
        log('═══════════════════════════════════', 'auto');

        handleCurrentResource();
        updatePanel();
    }

    function stopAuto() {
        if (!state.running) return;
        state.running = false;
        disableKeepAlive();
        state.processing = false;
        state.waitingForVideo = false;
        stopVideoObserver();
        persistRunning(false);  // 清除持久化标记
        log('🛑 已停止全自动', 'warn');
        updatePanel();
    }

    function stopAll() { stopAuto(); }

    // ============ 定时刷新 ============
    setInterval(updatePanel, 1000);

    // ============ 启动入口 ============
    log('🎓 全自动学习 v1.0 已加载！点「▶ 启动全自动」开始', 'auto');

    if (document.readyState !== 'loading') {
        createPanel();
        checkAutoResume();
    } else {
        document.addEventListener('DOMContentLoaded', function () {
            createPanel();
            checkAutoResume();
        });
    }

    window.__studyHelper = { startAuto: startAuto, stopAuto: stopAuto, goNext: autoNextResource };

})();