// ==UserScript==
// @name         手势归组校验工具 - 分组检查
// @namespace    http://113.207.49.90/
// @version      2.3.0
// @description  自动校验：切帧即校验（含缓存帧）；打开题包后自动统计整个题包半身框总数并在超过上限(默认33)时报错；检查归组、手势框<半身框<行人框包含关系、无需标注却有标注的帧
// @author       粟镇
// @match        *://*/w/task.html*
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function () {
    'use strict';

    // ============================================================
    // 配置区（可在面板“设置”里改，改完自动记住）
    // ============================================================
    const SETTINGS_KEY = 'sz-gesture-settings-v3';
    const STORAGE_KEY = 'sz-gesture-package-stats-v3';

    const DEFAULT_SETTINGS = {
        clsFull: 'full_bbox',
        clsHalf: 'half_bbox_xywh',
        clsHand: 'handbboxxywh',
        tolPx: 0,          // 越界容差（像素）；0 = 严格不能超出
        totalOverride: '', // 读不到总帧数时手动填
        halfLimit: 33      // 整个题包半身框总数上限，超过即报错；0 表示不限制
    };

    // 标签兜底：没有 class.pname 时按显示名判断
    const LABEL_FULL = ['行人主框', '行人框', '全身框', '行人'];
    const LABEL_HALF = ['半身框', '半身'];
    const LABEL_HAND = ['手势框', '手势'];

    const CAPTURE_MAX = 300;          // 最多保留的接口响应数
    const CAPTURE_MAX_BYTES = 8 * 1024 * 1024; // 单条超过 8MB 不解析
    const SCAN_DEPTH_MAX = 16;

    // ============================================================
    // 状态
    // ============================================================
    let cachedData = null;
    let panel = null;
    let panelReady = false;

    let lastRequest = null;            // 最近一次 get-mark-data 请求
    let scanning = false;              // 是否正在接口批量统计
    let currentImage = { w: null, h: null };
    let settings = Object.assign({}, DEFAULT_SETTINGS);

    let cachedFrameKey = null;         // 当前 cachedData 对应的帧（图片路径）
    let cachedFrameNo = null;          // 当前 cachedData 对应的帧号
    let lastWatchedFrame = null;       // 帧号监听：上次看到的帧号
    let autoBatchRanSig = null;        // 已自动统计过的题包，避免重复
    let autoBatchRunning = false;

    // 捕获到的所有接口响应：{ url, method, json, frames:[...] }
    let captured = [];

    // 全题包统计：frames 以“帧唯一键”索引，避免翻页与接口统计重复计数
    // { taskSig, totalFrames, frames: { key: {half, marks, status, no, src} } }
    let pkgStats = { taskSig: '', totalFrames: null, frames: {} };

    // ============================================================
    // 拦截 XHR / fetch
    // ============================================================
    function hookXHR() {
        const origOpen = XMLHttpRequest.prototype.open;
        const origSend = XMLHttpRequest.prototype.send;
        const origSetHeader = XMLHttpRequest.prototype.setRequestHeader;

        XMLHttpRequest.prototype.open = function (method, url) {
            this._szUrl = url;
            this._szMethod = method;
            this._szHeaders = {};
            return origOpen.apply(this, arguments);
        };

        XMLHttpRequest.prototype.setRequestHeader = function (name, value) {
            if (this._szHeaders) this._szHeaders[name] = value;
            return origSetHeader.apply(this, arguments);
        };

        XMLHttpRequest.prototype.send = function (body) {
            const self = this;
            const isMarkData = self._szUrl && self._szUrl.indexOf('get-mark-data') !== -1;

            if (isMarkData) {
                lastRequest = {
                    url: self._szUrl,
                    method: self._szMethod || 'GET',
                    body: body,
                    headers: self._szHeaders || {},
                    frameNoAtSend: resolveFrameNo(self._szUrl, body)
                };
            }

            let handled = false;
            const onDone = function () {
                if (handled || self.readyState !== 4) return;
                handled = true;
                if (self.status !== 200) return;
                const resp = readJsonLoose(self.responseText, self.response);
                if (!resp) return;

                captureResponse(self._szUrl, self._szMethod, resp);

                if (isMarkData && resp.code === 0 && resp.data) {
                    const md = resp.data.markData || {};
                    if (md.width) currentImage.w = md.width;
                    if (md.height) currentImage.h = md.height;

                    let frameNo = lastRequest.frameNoAtSend;
                    if (frameNo === null || frameNo === undefined) frameNo = extractFrameNo(resp.data);
                    if (frameNo === null || frameNo === undefined) {
                        const ind = readFrameIndicator();
                        if (ind) frameNo = ind.cur;
                    }
                    setCachedData(resp.data, frameNo);
                    recordFrame(resp.data.markData ? resp.data : { markData: md, mark_status: resp.data.mark_status }, frameNo, 'walk');
                    if (panelReady) autoRunCheck();
                    // 首次拿到数据后，自动统计整个题包（只跑一次）
                    maybeAutoBatch();
                }
            };

            try { self.addEventListener('load', onDone); } catch (e) {}
            try { self.addEventListener('readystatechange', onDone); } catch (e) {}

            return origSend.apply(this, arguments);
        };
    }

    function hookFetch() {
        if (typeof window === 'undefined' || !window.fetch) return;
        const origFetch = window.fetch;
        window.fetch = function () {
            const args = arguments;
            return origFetch.apply(this, args).then(function (resp) {
                try {
                    const url = (typeof args[0] === 'string') ? args[0] : (args[0] && args[0].url);
                    const method = (args[1] && args[1].method) || (args[0] && args[0].method) || 'GET';
                    resp.clone().text().then(function (txt) {
                        const json = readJsonLoose(txt, null);
                        if (json) captureResponse(url, method, json);
                    }).catch(function () {});
                } catch (e) {}
                return resp;
            });
        };
    }

    function readJsonLoose(text, fallbackObj) {
        if (typeof text === 'string' && text) {
            const t = text.trim();
            if (t.length > CAPTURE_MAX_BYTES) return null;
            if (t.charAt(0) === '{' || t.charAt(0) === '[') {
                try { return JSON.parse(t); } catch (e) {}
            }
        }
        if (fallbackObj && typeof fallbackObj === 'object') return fallbackObj;
        return null;
    }

    // 捕获响应并就地解析出其中的“帧”数据
    function captureResponse(url, method, json) {
        let frames = [];
        try { frames = collectFrames(json); } catch (e) { frames = []; }

        captured.push({ url: url || '', method: method || '', json: json, frames: frames, at: Date.now() });
        while (captured.length > CAPTURE_MAX) captured.shift();

        return frames;
    }

    // 深度遍历任意 JSON，抓出所有“含 marks 的帧对象”
    function collectFrames(root) {
        const out = [];
        const seen = new Set();       // 防止循环引用
        const consumed = new Set();   // 已作为帧容器使用过的节点，不再向下挖，避免重复计数
        const visited = [];

        (function walk(node, depth) {
            if (depth > SCAN_DEPTH_MAX || !node || typeof node !== 'object') return;
            if (seen.has(node) || consumed.has(node)) return;
            seen.add(node);

            if (Array.isArray(node)) {
                for (let i = 0; i < node.length; i++) walk(node[i], depth + 1);
                return;
            }

            let marks = null, status, imagePath = null, container = null;
            if (Array.isArray(node.marks) && node.marks.length) {
                marks = node.marks;
                status = (node.mark_status !== undefined) ? node.mark_status : undefined;
                container = node;
            } else if (node.markData && Array.isArray(node.markData.marks) && node.markData.marks.length) {
                marks = node.markData.marks;
                status = (node.mark_status !== undefined) ? node.mark_status : node.markData.mark_status;
                imagePath = node.markData.imagePath || node.markData.imgUrl || null;
                container = node.markData;
            } else if (Array.isArray(node.mark_data) && node.mark_data.length) {
                marks = node.mark_data;
                status = node.mark_status;
                container = node;
            }

            if (marks && marks.some(isMarkLike)) {
                if (!imagePath) imagePath = node.imagePath || node.imgUrl || node.img || node.url || null;
                visited.push({ marks: marks, status: status, imagePath: imagePath });
                consumed.add(container);
            }

            for (const k in node) {
                if (!Object.prototype.hasOwnProperty.call(node, k)) continue;
                if (k === 'marks' || k === 'mark_data') continue;
                const v = node[k];
                if (v && typeof v === 'object') walk(v, depth + 1);
            }
        })(root, 0);

        // 同一响应内去重：先按图片路径，再用 markId 集合兜底
        const bySig = {}, byMarks = {};
        for (let i = 0; i < visited.length; i++) {
            const f = visited[i];
            const sig = frameSignature(f);
            const mk = 'k:' + (f.marks || []).map(function (m) { return m.markId; }).filter(Boolean).join(',');
            if (bySig[sig] || (mk !== 'k:' && byMarks[mk])) continue;
            bySig[sig] = true;
            if (mk !== 'k:') byMarks[mk] = true;
            out.push(f);
        }
        return out;
    }

    function isMarkLike(o) {
        if (!o || typeof o !== 'object' || Array.isArray(o)) return false;
        const hasClass = (o.class && (o.class.pname || o.class.name)) || o.pselect;
        if (!hasClass) return false;
        return !!extractBox(o);
    }

    // 帧唯一键：优先图片路径（同一帧在任何接口里都一致），否则用 markId 组合
    function frameSignature(f) {
        if (f.imagePath) return 'p:' + f.imagePath;
        const ids = (f.marks || []).map(function (m) { return m.markId; }).filter(Boolean).join(',');
        if (ids) return 'm:' + ids;
        return 'j:' + JSON.stringify((f.marks || []).slice(0, 6)).slice(0, 400);
    }

    // ============================================================
    // 帧号 / 总帧数读取
    // ============================================================
    function readFrameIndicator() {
        if (!document.body) return null;
        const re = /^\s*(\d+)\s*[\/|·]\s*(\d+)\s*$/;
        let best = null;
        const consider = function (raw) {
            if (raw === null || raw === undefined) return;
            const t = String(raw).trim();
            if (!t || t.length > 16) return;
            const m = t.match(re);
            if (!m) return;
            const cur = parseInt(m[1], 10), tot = parseInt(m[2], 10);
            if (cur >= 1 && tot >= cur && tot <= 200000) {
                if (!best || tot > best.tot) best = { cur: cur, tot: tot };
            }
        };
        const all = document.body.querySelectorAll('*');
        for (let i = 0; i < all.length; i++) {
            const el = all[i];
            if (panel && panel.contains(el)) continue;
            if (el.children && el.children.length > 2) continue;
            consider(el.textContent);
        }
        const inputs = document.body.querySelectorAll('input, textarea');
        for (let i = 0; i < inputs.length; i++) {
            if (panel && panel.contains(inputs[i])) continue;
            consider(inputs[i].value);
        }
        return best;
    }

    function getTotalFrames() {
        const ind = readFrameIndicator();
        if (ind) return ind.tot;
        const n = toNum(settings.totalOverride);
        return (n !== null && n > 0) ? n : null;
    }

    function resolveFrameNo(url, body) {
        const fromReq = pickFrameFromRequest(url, body);
        if (fromReq !== null) return fromReq;
        const ind = readFrameIndicator();
        return ind ? ind.cur : null;
    }

    function pickFrameFromRequest(url, body) {
        const names = ['frame_id', 'frameId', 'frame_index', 'frameIndex', 'frame_no', 'frameNo',
            'current_frame', 'currentFrame', 'frame', 'index', 'idx'];
        for (let i = 0; i < names.length; i++) {
            const n = toNum(pickParamValue(url, body, [names[i]]));
            if (n !== null) return n;
        }
        return null;
    }

    function extractFrameNo(data) {
        if (!data || typeof data !== 'object') return null;
        const keys = ['frame_id', 'frameId', 'frame_index', 'frameIndex', 'frame',
            'frame_no', 'frameNo', 'current_frame', 'currentFrame', 'index', 'idx', 'seq'];
        for (let i = 0; i < keys.length; i++) {
            const n = toNum(data[keys[i]]);
            if (n !== null) return n;
        }
        return null;
    }

    function extractTotalFrames(data) {
        if (!data || typeof data !== 'object') return null;
        const keys = ['total_frame', 'totalFrame', 'total_frames', 'totalFrames', 'frame_count', 'frameCount', 'frames_total'];
        for (let i = 0; i < keys.length; i++) {
            const n = toNum(data[keys[i]]);
            if (n !== null && n > 0 && n <= 200000) return n;
        }
        return null;
    }

    // ============================================================
    // 参数工具
    // ============================================================
    function toNum(v) {
        if (typeof v === 'number') return isNaN(v) ? null : v;
        if (typeof v === 'string' && v.trim() !== '') {
            const n = parseFloat(v);
            return isNaN(n) ? null : n;
        }
        return null;
    }

    function parseBody(body) {
        if (body === null || body === undefined || body === '') return null;
        if (typeof body === 'object') return body;
        if (typeof body !== 'string') return null;
        try { return JSON.parse(body); } catch (e) {}
        try {
            const sp = new URLSearchParams(body);
            const o = {};
            sp.forEach(function (v, k) { o[k] = v; });
            return o;
        } catch (e) {}
        return null;
    }

    function pickParamValue(url, body, names) {
        for (let i = 0; i < names.length; i++) {
            const name = names[i];
            try {
                const u = new URL(url, location.href);
                if (u.searchParams.has(name)) return u.searchParams.get(name);
            } catch (e) {}
            const obj = parseBody(body);
            if (obj && obj[name] !== undefined && obj[name] !== null) return obj[name];
        }
        return null;
    }

    function getTaskSignature() {
        let taskId = null;
        if (lastRequest) taskId = pickParamValue(lastRequest.url, lastRequest.body, ['task_id', 'taskId']);
        if (taskId === null) {
            try {
                const u = new URL(location.href);
                taskId = u.searchParams.get('task_id') || u.searchParams.get('taskId');
            } catch (e) {}
        }
        if (taskId !== null && taskId !== undefined && taskId !== '') return 'task:' + taskId;
        if (cachedData && cachedData.markData && cachedData.markData.imagePath) {
            return 'img:' + cachedData.markData.imagePath.replace(/\/[^/]*$/, '');
        }
        return 'path:' + location.pathname;
    }

    // ============================================================
    // 标记分类 / 坐标提取
    // ============================================================
    function getClassNames(mark) {
        const cls = mark.class || {};
        const names = [];
        if (cls.pname) names.push(String(cls.pname));
        if (cls.name) names.push(String(cls.name));
        if (mark.pselect) names.push(String(mark.pselect));
        return names;
    }

    function classifyMark(mark) {
        const names = getClassNames(mark);
        const low = names.map(function (n) { return n.toLowerCase(); });
        const eqAny = function (target) { return target && low.indexOf(String(target).toLowerCase()) !== -1; };
        if (eqAny(settings.clsFull)) return 'full';
        if (eqAny(settings.clsHalf)) return 'half';
        if (eqAny(settings.clsHand)) return 'hand';
        const hit = function (arr) { return names.some(function (n) { return arr.indexOf(n) !== -1; }); };
        if (hit(LABEL_FULL)) return 'full';
        if (hit(LABEL_HALF)) return 'half';
        if (hit(LABEL_HAND)) return 'hand';
        return null;
    }

    function extractBox(mark) {
        if (!mark) return null;
        const sources = [
            mark.point, mark.points, mark,
            mark.bbox, mark.box, mark.rect, mark.position, mark.pos,
            mark.coords, mark.coord, mark.data
        ].filter(function (s) { return s && typeof s === 'object'; });

        for (let i = 0; i < sources.length; i++) {
            const s = sources[i];

            if (Array.isArray(s)) {
                if (s.length >= 2 && s.every(function (p) { return p && typeof p === 'object' && toNum(p.x) !== null; })) {
                    const xs = [], ys = [];
                    s.forEach(function (p) { xs.push(toNum(p.x)); ys.push(toNum(p.y)); });
                    return { x1: Math.min.apply(null, xs), y1: Math.min.apply(null, ys), x2: Math.max.apply(null, xs), y2: Math.max.apply(null, ys) };
                }
                if (s.length >= 4) {
                    const a = s.map(toNum);
                    if (a[0] !== null && a[1] !== null && a[2] !== null && a[3] !== null) {
                        if (a[2] > a[0] && a[3] > a[1]) return { x1: a[0], y1: a[1], x2: a[2], y2: a[3] };
                        return { x1: a[0], y1: a[1], x2: a[0] + a[2], y2: a[1] + a[3] };
                    }
                }
                continue;
            }

            const l = toNum(s.left !== undefined ? s.left : s.x1);
            const t = toNum(s.top !== undefined ? s.top : s.y1);
            const r = toNum(s.right !== undefined ? s.right : s.x2);
            const b = toNum(s.bottom !== undefined ? s.bottom : s.y2);
            if (l !== null && t !== null && r !== null && b !== null) return { x1: l, y1: t, x2: r, y2: b };

            const x = toNum(s.x !== undefined ? s.x : s.left);
            const y = toNum(s.y !== undefined ? s.y : s.top);
            const w = toNum(s.w !== undefined ? s.w : s.width);
            const h = toNum(s.h !== undefined ? s.h : s.height);
            if (x !== null && y !== null && w !== null && h !== null) return { x1: x, y1: y, x2: x + w, y2: y + h };

            const x1 = toNum(s.xmin), y1 = toNum(s.ymin), x2 = toNum(s.xmax), y2 = toNum(s.ymax);
            if (x1 !== null && y1 !== null && x2 !== null && y2 !== null) return { x1: x1, y1: y1, x2: x2, y2: y2 };

            const pts = s.points || s.pts || s.xy || s.polygon;
            if (Array.isArray(pts) && pts.length) {
                const xs = [], ys = [];
                pts.forEach(function (p) {
                    const px = Array.isArray(p) ? toNum(p[0]) : toNum(p.x);
                    const py = Array.isArray(p) ? toNum(p[1]) : toNum(p.y);
                    if (px !== null && py !== null) { xs.push(px); ys.push(py); }
                });
                if (xs.length) return { x1: Math.min.apply(null, xs), y1: Math.min.apply(null, ys), x2: Math.max.apply(null, xs), y2: Math.max.apply(null, ys) };
            }
        }
        return null;
    }

    function isNormalized(box) {
        const maxV = Math.max(Math.abs(box.x1), Math.abs(box.y1), Math.abs(box.x2), Math.abs(box.y2));
        return maxV <= 1.5;
    }

    function getTolerance() {
        return (typeof settings.tolPx === 'number' && !isNaN(settings.tolPx)) ? settings.tolPx : 0;
    }

    function intersectArea(a, b) {
        const x1 = Math.max(a.x1, b.x1), y1 = Math.max(a.y1, b.y1);
        const x2 = Math.min(a.x2, b.x2), y2 = Math.min(a.y2, b.y2);
        if (x2 <= x1 || y2 <= y1) return 0;
        return (x2 - x1) * (y2 - y1);
    }

    function isInside(outer, inner, tol) {
        return inner.x1 >= outer.x1 - tol && inner.y1 >= outer.y1 - tol &&
               inner.x2 <= outer.x2 + tol && inner.y2 <= outer.y2 + tol;
    }

    function getOverflow(outer, inner) {
        let tol = getTolerance();
        if (isNormalized(outer)) tol = tol / Math.max(currentImage.w || 1920, 1);
        const eps = 1e-6;
        const norm = isNormalized(outer);
        const unit = norm ? '' : 'px';
        const fmt = function (v) { return norm ? v.toFixed(4) : v.toFixed(1); };
        const over = [];
        if (inner.x1 < outer.x1 - tol - eps) over.push('左侧 ' + fmt(outer.x1 - inner.x1) + unit);
        if (inner.y1 < outer.y1 - tol - eps) over.push('上侧 ' + fmt(outer.y1 - inner.y1) + unit);
        if (inner.x2 > outer.x2 + tol + eps) over.push('右侧 ' + fmt(inner.x2 - outer.x2) + unit);
        if (inner.y2 > outer.y2 + tol + eps) over.push('下侧 ' + fmt(inner.y2 - outer.y2) + unit);
        return over;
    }

    // 归组标识：本平台用 groupId（配合 groupL），objectId 是“对象/轨迹”，不是归组键
    function getGroupId(mark) {
        const v = mark.groupId !== undefined ? mark.groupId
            : (mark.group_id !== undefined ? mark.group_id : mark.group);
        if (v === undefined || v === null || v === '') return null;
        if (v === 0 || v === '0') return null;      // 0 表示未归组
        return String(v);
    }

    function pickParent(childBox, candidates) {
        const withBox = candidates.filter(function (c) { return c.box; });
        if (!withBox.length) return null;
        let best = null, bestScore = -Infinity;
        for (let i = 0; i < withBox.length; i++) {
            const c = withBox[i];
            const score = (isInside(c.box, childBox, getTolerance()) ? 1e12 : 0) + intersectArea(childBox, c.box);
            if (score > bestScore) { bestScore = score; best = c; }
        }
        if (best && bestScore <= 0) return null;
        return best;
    }

    // ============================================================
    // 全题包统计
    // ============================================================
    function countClass(marks, kind) {
        let n = 0;
        for (let i = 0; i < (marks || []).length; i++) {
            if (classifyMark(marks[i]) === kind) n++;
        }
        return n;
    }

    // 帧唯一键：优先图片路径，其次帧号
    function getFrameKey(data, frameNo) {
        const md = (data && data.markData) || {};
        if (md.imagePath) return 'p:' + md.imagePath;
        if (md.imgUrl) return 'u:' + String(md.imgUrl).split('?')[0];
        if (frameNo !== null && frameNo !== undefined) return 'n:' + frameNo;
        return null;
    }

    function recordFrame(data, frameNo, src) {
        const md = (data && data.markData) || {};
        const marks = md.marks || [];
        if (!marks.length && data && data.mark_status === undefined) return;

        const key = getFrameKey(data, frameNo);
        if (!key) return;

        const sig = getTaskSignature();
        if (pkgStats.taskSig !== sig) {
            pkgStats = { taskSig: sig, totalFrames: pkgStats.totalFrames || null, frames: {} };
        }
        const tot = getTotalFrames() || extractTotalFrames(data);
        if (tot) pkgStats.totalFrames = tot;

        pkgStats.frames[key] = {
            half: countClass(marks, 'half'),
            marks: marks.length,
            status: data.mark_status,
            no: (frameNo !== null && frameNo !== undefined) ? frameNo : null,
            src: src || 'walk'
        };
        saveStats();
        if (panelReady) updatePackageView();
    }

    // 记录当前帧数据对应的帧标识（图片路径 + 帧号）
    function setCachedData(data, frameNo) {
        cachedData = data;
        const md = (data && data.markData) || {};
        const path = md.imagePath || md.imgUrl || null;
        cachedFrameKey = path ? String(path).split('?')[0] : null;
        cachedFrameNo = (frameNo !== null && frameNo !== undefined) ? frameNo : extractFrameNo(data);
        // 若帧号与页面指示器一致，同步监听基线，避免重复拉取
        if (cachedFrameNo !== null && cachedFrameNo !== undefined) lastWatchedFrame = cachedFrameNo;
    }

    // 帧切换监听：靠帧号变化驱动自动校验。
    // 平台对已看过的帧会走缓存、不发请求，只有轮询帧号才能保证切帧必校验。
    function startFrameWatcher() {
        setInterval(frameWatcherTick, 700);
    }

    // 一次帧切换检查：返回 'ok'（已校验当前缓存帧）/ 'load'（需拉取）/ 'idle'
    function frameWatcherTick() {
        if (scanning || autoBatchRunning) return 'idle';
        const ind = readFrameIndicator();
        if (!ind) return 'idle';
        if (ind.cur === lastWatchedFrame) return 'idle';
        lastWatchedFrame = ind.cur;

        // 帧号变了：若当前缓存的数据就是这一帧，直接校验
        if (cachedFrameNo === ind.cur) {
            if (panelReady) autoRunCheck();
            return 'ok';
        }
        autoLoadFrame(ind.cur);
        return 'load';
    }

    let autoLoadBusy = false;
    async function autoLoadFrame(frameNo) {
        if (autoLoadBusy) return;
        if (!lastRequest || !cachedData) return;   // 等页面自身首次加载完成再自动拉取
        autoLoadBusy = true;
        try {
            // 优先从 DOM 帧导航条拿这一帧的 task_id
            const domList = readFrameListFromDom();
            let taskId = null;
            if (domList && domList.list.length) {
                const hit = domList.list.filter(function (e) { return e.order === frameNo - 1 || e.order === frameNo; });
                if (hit.length) taskId = hit[0].id;
                else if (domList.list[frameNo - 1]) taskId = domList.list[frameNo - 1].id;
            }
            if (taskId === null) return;   // 拿不到 task_id 就不乱请求

            const data = await requestMarkData(taskId);
            setCachedData(data, frameNo);
            recordFrame(data, frameNo, 'walk');
            if (panelReady) autoRunCheck();
        } catch (e) {
            // 自动拉取失败保持静默，不打扰标注
        } finally {
            autoLoadBusy = false;
        }
    }

    function frameNoFromPath(p) {
        if (!p) return null;
        const m = String(p).match(/(\d+)(?=\.\w+$)/);
        return m ? parseInt(m[1], 10) : null;
    }

    // ============================================================
    // 题包任务列表 → 逐帧请求 get-mark-data
    // ============================================================
    function walkJson(node, visit, depth, key) {
        depth = depth || 0;
        if (depth > SCAN_DEPTH_MAX || !node || typeof node !== 'object') return;
        visit(node, key);
        if (Array.isArray(node)) {
            for (let i = 0; i < node.length; i++) walkJson(node[i], visit, depth + 1, null);
            return;
        }
        for (const k in node) {
            if (!Object.prototype.hasOwnProperty.call(node, k)) continue;
            const v = node[k];
            if (v && typeof v === 'object') walkJson(v, visit, depth + 1, k);
        }
    }

    const TASK_ID_KEYS = ['task_id', 'taskId', 'taskID', 'tid'];
    const TASK_UUID_KEYS = ['task_uuid', 'taskUuid', 'uuid'];
    const TASK_ORDER_KEYS = ['order', 'sort', 'index', 'idx', 'frame', 'frame_no', 'frameNo', 'seq', 'no'];

    function firstKey(obj, keys) {
        for (let i = 0; i < keys.length; i++) {
            if (obj[keys[i]] !== undefined && obj[keys[i]] !== null && obj[keys[i]] !== '') return obj[keys[i]];
        }
        return null;
    }

    // 判断一个对象是否像“帧/任务”条目（本平台：data.frame[] 只带 task_id 和状态位）
    function taskEntryOf(obj) {
        if (!obj || typeof obj !== 'object' || Array.isArray(obj)) return null;
        const id = firstKey(obj, TASK_ID_KEYS);
        if (id === null) return null;
        if (Array.isArray(id) || typeof id === 'object') return null;
        return {
            id: id,
            uuid: firstKey(obj, TASK_UUID_KEYS),
            image: null, // 帧列表不含图片，图片从 get-mark-data 里取
            order: toNum(firstKey(obj, TASK_ORDER_KEYS))
        };
    }

    // 帧条目特征字段，用于给候选数组加分
    const FRAME_FLAG_KEYS = ['done_status', 'mark_flag', 'is_save', 'is_acceptance', 'has_issues', 'mark_status'];

    // 从所有已捕获响应里找出最像“题包帧列表”的数组
    function findTaskList() {
        const pageTotal = getTotalFrames();
        let best = null;
        for (let i = 0; i < captured.length; i++) {
            const url = String(captured[i].url || '');
            walkJson(captured[i].json, function (node, key) {
                if (!Array.isArray(node) || node.length < 2 || node.length > 20000) return;
                const entries = [];
                let flagHits = 0;
                for (let j = 0; j < node.length; j++) {
                    const e = taskEntryOf(node[j]);
                    if (e) entries.push(e);
                    if (node[j] && typeof node[j] === 'object') {
                        for (let f = 0; f < FRAME_FLAG_KEYS.length; f++) {
                            if (node[j][FRAME_FLAG_KEYS[f]] !== undefined) { flagHits++; break; }
                        }
                    }
                }
                if (entries.length < 2) return;
                if (entries.length < node.length * 0.5) return;
                let score = entries.length + flagHits * 10;
                if (key === 'frame') score += 20000;                 // mark-conf 的 data.frame 最可信
                if (pageTotal && entries.length === pageTotal) score += 100000; // 与页面总帧数一致，几乎可确定是全量
                if (/packages?\/[^/]*\/tasks|mark-conf|package|batch|frame/i.test(url)) score += 5000;
                else if (/task/i.test(url)) score += 1000;
                if (!best || score > best.score) best = { score: score, entries: entries, url: url };
            });
        }
        if (!best) return null;

        const seen = {};
        const list = [];
        best.entries.forEach(function (e) {
            const k = String(e.id);
            if (seen[k]) return;
            seen[k] = true;
            list.push(e);
        });
        const hasOrder = list.some(function (e) { return e.order !== null; });
        if (hasOrder) {
            list.sort(function (a, b) {
                const ao = a.order === null ? 1e9 : a.order, bo = b.order === null ? 1e9 : b.order;
                return ao - bo;
            });
        }
        return { list: list, url: best.url };
    }

    function buildMarkBody(taskId) {
        let base = parseBody(lastRequest ? lastRequest.body : null) || {};
        if (typeof base !== 'object' || Array.isArray(base)) base = {};
        const body = {};
        for (const k in base) { if (Object.prototype.hasOwnProperty.call(base, k)) body[k] = base[k]; }
        body.task_id = taskId;
        body.time = Date.now();
        return body;
    }

    // 从页面 URL 读题包参数（id/task_id、package_id、status、work_type、access）
    function readPageParams() {
        const q = {};
        try {
            const u = new URL(location.href);
            u.searchParams.forEach(function (v, k) { q[k] = v; });
        } catch (e) {}
        return q;
    }

    // 复用平台请求头（含 Access-Key 等鉴权头）
    function authHeaders(extra) {
        const h = Object.assign({}, (lastRequest && lastRequest.headers) || {});
        // 采集不到时给常见默认值，保证基本可用
        if (!h['X-Requested-With']) h['X-Requested-With'] = 'XMLHttpRequest';
        h['Accept'] = h['Accept'] || 'application/json, text/javascript, */*; q=0.01';
        return Object.assign(h, extra || {});
    }

    function getTaskKey() {
        let tk = lastRequest ? pickParamValue(lastRequest.url, lastRequest.body, ['task_key', 'taskKey']) : null;
        if (tk === null) tk = readPageParams().task_key || null;
        return tk;
    }

    async function getJson(url, method) {
        try {
            const resp = await fetch(url, { method: method || 'GET', credentials: 'include', headers: authHeaders() });
            if (!resp.ok) return { error: 'HTTP ' + resp.status };
            const json = await resp.json();
            captured.push({ url: url, method: method || 'GET', json: json, frames: [], at: Date.now() });
            return { json: json };
        } catch (e) {
            return { error: String(e && e.message || e) };
        }
    }

    // 从 DOM 的帧导航条读取帧列表：平台渲染 <li data-task="{task_id}">
    function readFrameListFromDom() {
        if (!document.body) return null;
        const nodes = document.body.querySelectorAll('[data-task]');
        const list = [];
        const seen = {};
        for (let i = 0; i < nodes.length; i++) {
            const el = nodes[i];
            if (panel && panel.contains(el)) continue;
            const id = el.getAttribute('data-task');
            if (id === null || id === undefined || id === '') continue;
            if (seen[id]) continue;
            seen[id] = true;
            const dl = el.getAttribute('data-list');
            list.push({ id: id, uuid: null, image: null, order: toNum(dl) });
        }
        if (list.length < 2) return null;
        list.sort(function (a, b) {
            const ao = a.order === null ? 1e9 : a.order, bo = b.order === null ? 1e9 : b.order;
            return ao - bo;
        });
        return { list: list, url: 'DOM: [data-task]' };
    }

    // 主动获取整个题包的帧列表（多路尝试）
    async function fetchFrameList() {
        // 1) 已捕获的数据里直接找
        let tl = findTaskList();
        if (tl && tl.list.length) return tl;

        // 2) DOM 帧导航条
        tl = readFrameListFromDom();
        if (tl && tl.list.length) return tl;

        const q = readPageParams();
        const taskId = q.task_id || q.id || (lastRequest ? pickParamValue(lastRequest.url, lastRequest.body, ['task_id', 'taskId']) : null);
        const taskKey = getTaskKey();
        const packageId = q.package_id || q.packageId || null;
        const status = q.status !== undefined ? q.status : 0;
        const workType = q.work_type !== undefined ? q.work_type : 3;
        const access = q.access !== undefined ? q.access : 3;

        // 2) 题包全量帧列表：/v2/task-batches/{task_key}/packages/{package_id}/tasks
        //    注意：平台源码里 URL 带一个多余的 } （packages/44841}/tasks），两种都试
        if (taskKey && packageId) {
            const urls = [
                '/v2/task-batches/' + taskKey + '/packages/' + packageId + '}/tasks',
                '/v2/task-batches/' + taskKey + '/packages/' + packageId + '/tasks'
            ];
            for (let i = 0; i < urls.length; i++) {
                const r = await getJson(urls[i]);
                if (r.json) {
                    tl = findTaskList();
                    if (tl && tl.list.length) return tl;
                }
            }
        }

        // 3) mark-conf 的 data.frame
        if (taskId !== null && taskId !== undefined) {
            const url = '/v2/tasks/mark-conf?status=' + status + '&task_id=' + taskId + '&work_type=' + workType + '&access=' + access;
            const r = await getJson(url);
            if (r.json) {
                tl = findTaskList();
                if (tl && tl.list.length) return tl;
            }
        }
        return tl;
    }

    async function requestMarkData(taskId) {
        const url = lastRequest ? lastRequest.url : '/api/task/get-mark-data';
        const headers = authHeaders({ 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' });
        const resp = await fetch(url, {
            method: (lastRequest && lastRequest.method) || 'POST',
            credentials: 'include',
            headers: headers,
            body: JSON.stringify(buildMarkBody(taskId))
        });
        if (!resp.ok) throw new Error('HTTP ' + resp.status);
        const json = await resp.json();
        if (!json || json.code !== 0 || !json.data) throw new Error('接口返回异常');
        return json.data;
    }

    async function batchScanFrames() {
        if (scanning) return false;
        scanning = true;

        if (!lastRequest) {
            scanning = false;
            updatePackageView('尚未捕获到 get-mark-data 请求，请先切换一帧');
            return false;
        }

        const tl = await fetchFrameList();
        if (!tl || !tl.list.length) {
            scanning = false;
            updatePackageView('自动统计：暂未拿到题包帧列表，稍后自动重试…');
            return false;
        }

        const total = tl.list.length;
        let ok = 0, fail = 0;

        for (let i = 0; i < total; i++) {
            const t = tl.list[i];
            try {
                const data = await requestMarkData(t.id);
                const md = data.markData || {};
                recordFrame({ markData: md, mark_status: data.mark_status }, (t.order !== null ? t.order : (i + 1)), 'api');
                ok++;
            } catch (e) {
                fail++;
            }
            updatePackageView('整个题包统计中 ' + (i + 1) + ' / ' + total + (fail ? '（失败 ' + fail + '）' : ''));
            if (i % 5 === 0) { saveStats(); await sleep(30); }
        }

        saveStats();
        scanning = false;
        updatePackageView('整个题包统计完成：成功 ' + ok + ' 帧' + (fail ? '，失败 ' + fail + ' 帧' : '') + '，半身框共 ' + pkgHalfTotal() + ' 个');
        return true;
    }

    function sleep(ms) { return new Promise(function (r) { setTimeout(r, ms); }); }

    // 首次拿到标注数据后，自动统计整个题包（成功前会持续重试，最多若干次）
    function maybeAutoBatch() {
        if (autoBatchRunning || scanning) return;
        const sig = getTaskSignature();
        if (autoBatchRanSig === sig) return;
        autoBatchRunning = true;
        let attempts = 0;

        const attempt = function () {
            attempts++;
            updatePackageView('正在自动统计整个题包…（第 ' + attempts + ' 次）');
            Promise.resolve()
                .then(function () { return batchScanFrames(); })
                .then(function (done) {
                    if (done) {
                        autoBatchRanSig = sig;
                        autoBatchRunning = false;
                    } else if (attempts < 5) {
                        setTimeout(attempt, 2500);
                    } else {
                        autoBatchRunning = false;
                        updatePackageView('自动统计暂未成功，可点“接口批量统计”手动触发或复制诊断报告');
                    }
                })
                .catch(function () {
                    if (attempts < 5) setTimeout(attempt, 2500);
                    else autoBatchRunning = false;
                });
        };
        setTimeout(attempt, 800);
    }


    function pkgEntries() {
        const out = [];
        const f = pkgStats.frames;
        for (const k in f) {
            if (!Object.prototype.hasOwnProperty.call(f, k)) continue;
            const v = f[k];
            const rec = (typeof v === 'number') ? { half: v, marks: null, status: null, no: null } : v;
            let no = (rec.no === undefined) ? null : rec.no;
            if (no === null || no === undefined) no = frameNoFromKey(k);
            out.push({ key: k, half: rec.half || 0, marks: rec.marks, status: rec.status, no: no });
        }
        out.sort(function (a, b) {
            const na = a.no === null ? 1e9 : a.no, nb = b.no === null ? 1e9 : b.no;
            return na - nb;
        });
        return out;
    }

    // 从帧唯一键里尽力还原帧号：'n:12' 或纯数字键，以及图片路径里的数字
    function frameNoFromKey(k) {
        if (k === null || k === undefined) return null;
        const s = String(k);
        let m = s.match(/^n:(\d+)$/);
        if (m) return parseInt(m[1], 10);
        m = s.match(/^(\d+)$/);
        if (m) return parseInt(m[1], 10);
        return frameNoFromPath(s);
    }

    function pkgHalfTotal() {
        return pkgEntries().reduce(function (s, e) { return s + e.half; }, 0);
    }

    // 半身框总数是否超限（上限可配置，0 表示不限制）
    function isHalfOverLimit(total) {
        const limit = toNum(settings.halfLimit);
        return (limit !== null && limit > 0 && total > limit);
    }

    function pkgFrameCount() { return Object.keys(pkgStats.frames).length; }

    function frameNoLabel(e) { return (e.no === null || e.no === undefined) ? '?' : e.no; }

    function pkgNoMarkViolations() {
        return pkgEntries().filter(function (e) { return e.status === 1 && e.marks !== null && e.marks > 0; })
            .map(frameNoLabel);
    }

    function pkgMissingFrames() {
        return pkgEntries().filter(function (e) { return e.status === 0 && e.marks === 0; })
            .map(frameNoLabel);
    }

    function saveStats() { try { localStorage.setItem(STORAGE_KEY, JSON.stringify(pkgStats)); } catch (e) {} }
    function loadStats() {
        try {
            const raw = localStorage.getItem(STORAGE_KEY);
            if (!raw) return;
            const obj = JSON.parse(raw);
            if (obj && obj.frames && obj.taskSig === getTaskSignature()) pkgStats = obj;
        } catch (e) {}
    }

    // ============================================================
    // 校验逻辑
    // ============================================================
    function validateMarks(respData) {
        const results = [];
        const markStatus = respData.mark_status;
        const marks = (respData.markData && respData.markData.marks) || [];
        const hasMarks = marks.length > 0;

        if (markStatus === 1 && !hasMarks) { results.push({ type: 'info', msg: '无需标注，跳过检查' }); return results; }

        if (markStatus === 1 && hasMarks) {
            results.push({ type: 'warning', msg: `[状态异常] 本帧点了"无需标注"，但里面标注了 ${marks.length} 个框，可能误操作` });
        }

        if (markStatus === 0 && !hasMarks) {
            results.push({ type: 'warning', msg: '[可能漏标] 标注状态为正常标注，但没有任何标注数据' });
            return results;
        }

        if (!hasMarks) { results.push({ type: 'info', msg: '当前帧无标注数据' }); return results; }

        runContainmentCheck(marks, results);
        return results;
    }

    function runContainmentCheck(marks, results) {
        const fulls = [], halves = [], hands = [];
        for (let i = 0; i < marks.length; i++) {
            const m = marks[i];
            const kind = classifyMark(m);
            if (!kind) continue;
            const item = {
                id: m.markId || m.boxId || ('index_' + i),
                label: (m.pselect || (m.class && m.class.pname) || ''),
                box: extractBox(m),
                group: getGroupId(m)
            };
            if (kind === 'full') fulls.push(item);
            else if (kind === 'half') halves.push(item);
            else hands.push(item);
        }
        checkLayer(halves, fulls, '半身框', '行人框', results);
        checkLayer(hands, halves, '手势框', '半身框', results);
    }

    function checkLayer(children, parents, childName, parentName, results) {
        for (let i = 0; i < children.length; i++) {
            const c = children[i];
            const tag = childName + '(' + c.id + ')';
            if (!c.box) { results.push({ type: 'warning', msg: `[无法校验] ${tag} 没有取到坐标` }); continue; }

            // 分组校验：本平台靠 groupId 归组，没有 groupId 即未归组
            if (c.group === null) {
                results.push({ type: 'warning', msg: `[未归组] ${tag} 没有 groupId，应与对应${parentName}归组` });
            }

            if (!parents.length) {
                results.push({ type: 'warning', msg: `[缺框] ${tag} 没有对应的${parentName}，无法校验范围` });
                continue;
            }

            // 已归组则只在同组父框里找；未归组则按几何位置兜底
            let pool = parents;
            if (c.group !== null) {
                const same = parents.filter(function (p) { return p.group === c.group; });
                if (same.length) pool = same;
                else results.push({ type: 'warning', msg: `[未归组] ${tag} 的 groupId(${c.group}) 与任何${parentName}都不一致，未归到同一对象` });
            }

            const parent = pickParent(c.box, pool);
            if (!parent) {
                results.push({ type: 'warning', msg: `[越界] ${tag} 不在任何${parentName}范围内` });
                continue;
            }

            const over = getOverflow(parent.box, c.box);
            if (over.length) {
                results.push({ type: 'warning', msg: `[越界] ${tag} 超出 ${parentName}(${parent.id})：${over.join('、')}` });
            }
        }
    }

    function autoRunCheck() {
        if (!cachedData) return;
        const results = validateMarks(cachedData);
        renderFrameView(results, cachedData);
        updatePackageView();
    }

    function manualCheck() {
        if (!cachedData) {
            const slot = document.getElementById('sz-frame-slot');
            if (slot) slot.innerHTML = '<div class="sz-loading">暂无标注数据，请先切换到一帧</div>';
            return;
        }
        const btn = document.getElementById('sz-btn-check');
        if (btn) { btn.textContent = '校验中...'; btn.disabled = true; }
        setTimeout(function () {
            const results = validateMarks(cachedData);
            renderFrameView(results, cachedData);
            if (btn) { btn.textContent = '校验当前帧'; btn.disabled = false; }
        }, 80);
    }

    // ============================================================
    // 样式
    // ============================================================
    function injectStyles() {
        if (document.getElementById('sz-check-styles')) return;
        const style = document.createElement('style');
        style.id = 'sz-check-styles';
        style.textContent = `
            #sz-check-panel { position: fixed; top: 80px; left: 320px; width: 372px; max-height: 78vh;
                background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%); color: #e0e0e0;
                border: 1px solid rgba(233,69,96,0.3); border-radius: 12px; z-index: 999999;
                font-family: "Microsoft YaHei", "PingFang SC", sans-serif; font-size: 13px;
                box-shadow: 0 8px 32px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.05); overflow: hidden; }
            #sz-check-header { background: linear-gradient(135deg, #0f3460 0%, #1a1a40 100%);
                padding: 10px 14px; display: flex; justify-content: space-between; align-items: center;
                cursor: move; user-select: none; border-bottom: 1px solid rgba(233,69,96,0.2); }
            #sz-check-header:active { cursor: grabbing; }
            .sz-title { font-weight: bold; font-size: 14px; color: #00d2ff; display: flex; align-items: center; gap: 6px; }
            .sz-title-dot { width: 8px; height: 8px; background: #00d2ff; border-radius: 50%; box-shadow: 0 0 8px #00d2ff; animation: sz-pulse 2s ease-in-out infinite; }
            @keyframes sz-pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
            .sz-btn-check { background: linear-gradient(135deg, #00d2ff 0%, #0288d1 100%); color: #fff; border: none;
                padding: 5px 12px; border-radius: 6px; cursor: pointer; font-size: 12px; font-weight: bold; }
            .sz-btn-check:hover { transform: translateY(-1px); }
            .sz-btn-check:disabled { opacity: .6; cursor: not-allowed; }
            .sz-btn-toggle { background: rgba(255,255,255,0.08); color: #aaa; border: 1px solid rgba(255,255,255,0.1);
                width: 26px; height: 26px; border-radius: 6px; cursor: pointer; font-size: 14px;
                display: flex; align-items: center; justify-content: center; margin-left: 6px; }
            .sz-btn-toggle:hover { background: rgba(255,255,255,0.15); color: #fff; }
            #sz-check-content { padding: 12px 14px; max-height: calc(78vh - 50px); overflow-y: auto; }
            #sz-check-content::-webkit-scrollbar { width: 6px; }
            #sz-check-content::-webkit-scrollbar-thumb { background: rgba(233,69,96,0.3); border-radius: 3px; }
            .sz-pkg { margin-bottom: 10px; padding: 10px 12px; background: linear-gradient(135deg, rgba(0,210,255,.10), rgba(15,52,96,.5)); border: 1px solid rgba(0,210,255,.35); border-radius: 8px; }
            .sz-pkg-title { color: #00d2ff; font-weight: bold; font-size: 12px; letter-spacing: 1px; margin-bottom: 6px; display: flex; justify-content: space-between; align-items: center; }
            .sz-pkg-main { display: flex; align-items: baseline; gap: 8px; }
            .sz-pkg-num { color: #00d2ff; font-size: 30px; font-weight: bold; line-height: 1.1; text-shadow: 0 0 12px rgba(0,210,255,.5); }
            .sz-pkg-unit { color: #8892b0; font-size: 12px; }
            .sz-pkg-sub { color: #8892b0; font-size: 11px; margin-top: 4px; line-height: 1.6; }
            .sz-scan-status { color: #7fddc4; font-size: 11px; margin-top: 6px; word-break: break-all; line-height: 1.5; }
            .sz-alert { margin-top: 7px; padding: 6px 8px; border-radius: 5px; font-size: 11px; line-height: 1.5; }
            .sz-alert-err { background: rgba(233,69,96,.12); border: 1px solid rgba(233,69,96,.35); color: #ff9db0; }
            .sz-alert-warn { background: rgba(255,165,0,.10); border: 1px solid rgba(255,165,0,.30); color: #ffc76b; }
            .sz-alert-limit { background: rgba(233,69,96,.22); border: 1px solid rgba(233,69,96,.9); color: #ffd0da; font-weight: bold; font-size: 12px; }
            .sz-stats { margin-bottom: 10px; padding: 10px 12px; background: rgba(15,52,96,.4); border-radius: 8px; border: 1px solid rgba(255,255,255,.05); }
            .sz-stats-title { color: #e94560; font-weight: bold; margin-bottom: 6px; font-size: 12px; letter-spacing: 1px; display: flex; justify-content: space-between; align-items: center; }
            .sz-stats-body { color: #8892b0; font-size: 12px; line-height: 1.9; }
            .sz-halfline { margin-top: 8px; padding: 7px 10px; background: rgba(0,210,255,.08); border: 1px solid rgba(0,210,255,.25); border-radius: 6px; display: flex; align-items: baseline; gap: 8px; }
            .sz-halfline .lbl { color: #8892b0; font-size: 12px; }
            .sz-halfline .num { color: #00d2ff; font-size: 20px; font-weight: bold; line-height: 1; }
            .sz-badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 11px; font-weight: bold; }
            .sz-badge-ok { background: rgba(78,204,163,.15); color: #4ecca3; border: 1px solid rgba(78,204,163,.3); }
            .sz-badge-warn { background: rgba(255,165,0,.15); color: #ffa500; border: 1px solid rgba(255,165,0,.3); }
            .sz-badge-err { background: rgba(233,69,96,.15); color: #e94560; border: 1px solid rgba(233,69,96,.3); }
            .sz-pass { color: #4ecca3; text-align: center; padding: 20px 0; font-size: 15px; font-weight: bold; }
            .sz-warn-header { color: #e94560; font-weight: bold; margin: 10px 0 6px; font-size: 13px; }
            .sz-warn-item { background: rgba(233,69,96,.08); border-left: 3px solid #e94560; padding: 8px 10px; margin-bottom: 5px; border-radius: 0 6px 6px 0; font-size: 13px; line-height: 1.6; color: #ccc; }
            .sz-warn-item:hover { background: rgba(233,69,96,.15); }
            .sz-info { color: #8892b0; padding: 8px 0; text-align: center; }
            .sz-loading { color: #8892b0; text-align: center; padding: 24px 0; }
            @keyframes sz-shake { 0%,100%{transform:translateX(0)} 10%,30%,50%,70%,90%{transform:translateX(-5px)} 20%,40%,60%,80%{transform:translateX(5px)} }
            .sz-shake { animation: sz-shake .5s ease-in-out; }
        `;
        document.head.appendChild(style);
    }

    // ============================================================
    // 面板
    // ============================================================
    function createPanel() {
        if (panel && document.body.contains(panel)) return panel;
        injectStyles();

        panel = document.createElement('div');
        panel.id = 'sz-check-panel';
        panel.innerHTML = `
            <div id="sz-check-header">
                <span class="sz-title"><span class="sz-title-dot"></span>手势标注校验</span>
                <div style="display:flex;align-items:center;">
                    <button id="sz-btn-check" class="sz-btn-check">校验当前帧</button>
                    <button id="sz-btn-toggle" class="sz-btn-toggle">&#8722;</button>
                </div>
            </div>
            <div id="sz-check-content">
                <div id="sz-pkg-slot"></div>
                <div id="sz-frame-slot"><div class="sz-loading">等待标注数据加载...</div></div>
            </div>
        `;
        document.body.appendChild(panel);

        document.getElementById('sz-btn-check').addEventListener('click', manualCheck);
        document.getElementById('sz-btn-toggle').addEventListener('click', togglePanel);
        makeDraggable();

        panelReady = true;
        renderPackageBlock();
        if (cachedData) autoRunCheck();
        return panel;
    }

    function makeDraggable() {
        const header = document.getElementById('sz-check-header');
        let dragging = false, sx = 0, sy = 0, sl = 0, st = 0;
        header.addEventListener('mousedown', function (e) {
            if (e.target.tagName === 'BUTTON') return;
            dragging = true; sx = e.clientX; sy = e.clientY;
            const r = panel.getBoundingClientRect(); sl = r.left; st = r.top;
            e.preventDefault();
        });
        document.addEventListener('mousemove', function (e) {
            if (!dragging) return;
            let nl = sl + (e.clientX - sx), nt = st + (e.clientY - sy);
            nl = Math.max(-260, Math.min(nl, window.innerWidth - 80));
            nt = Math.max(0, Math.min(nt, window.innerHeight - 50));
            panel.style.left = nl + 'px'; panel.style.top = nt + 'px'; panel.style.right = 'auto';
        });
        document.addEventListener('mouseup', function () { dragging = false; });
    }

    function togglePanel() {
        const content = document.getElementById('sz-check-content');
        const btn = document.getElementById('sz-btn-toggle');
        if (content.style.display === 'none') { content.style.display = ''; btn.innerHTML = '&#8722;'; }
        else { content.style.display = 'none'; btn.innerHTML = '&#43;'; }
    }

    function renderPackageBlock() {
        const slot = document.getElementById('sz-pkg-slot');
        if (!slot) return;
        if (document.getElementById('sz-pkg-num')) { updatePackageView(); return; }

        slot.innerHTML = `
            <div class="sz-pkg" id="sz-pkg">
                <div class="sz-pkg-title">
                    <span>全题包半身框总数</span>
                    <span id="sz-pkg-frames" style="color:#556080;font-weight:normal;letter-spacing:0;">帧数未知</span>
                </div>
                <div class="sz-pkg-main"><span class="sz-pkg-num" id="sz-pkg-num">0</span><span class="sz-pkg-unit">个</span></div>
                <div class="sz-pkg-sub" id="sz-pkg-progress">已统计 0 帧</div>
                <div id="sz-scan-status" class="sz-scan-status"></div>
                <div id="sz-pkg-alerts"></div>
            </div>
        `;
        updatePackageView();
    }

    function updatePackageView(statusText) {
        const numEl = document.getElementById('sz-pkg-num');
        if (!numEl) return;
        const knownTotal = pkgStats.totalFrames || getTotalFrames();
        const total = pkgHalfTotal();
        const limit = toNum(settings.halfLimit);
        const overLimit = isHalfOverLimit(total);

        numEl.textContent = String(total);
        numEl.style.color = overLimit ? '#ff5c7a' : '#00d2ff';
        numEl.style.textShadow = overLimit ? '0 0 12px rgba(233,69,96,.7)' : '0 0 12px rgba(0,210,255,.5)';

        const boxEl = document.getElementById('sz-pkg');
        if (boxEl) boxEl.style.borderColor = overLimit ? 'rgba(233,69,96,.8)' : 'rgba(0,210,255,.35)';

        const fEl = document.getElementById('sz-pkg-frames');
        if (fEl) fEl.textContent = knownTotal ? (knownTotal + ' 帧') : '帧数未知';

        const pEl = document.getElementById('sz-pkg-progress');
        if (pEl) {
            pEl.textContent = knownTotal
                ? ('已统计 ' + pkgFrameCount() + ' / ' + knownTotal + ' 帧')
                : ('已统计 ' + pkgFrameCount() + ' 帧');
        }
        if (statusText !== undefined) {
            const sEl = document.getElementById('sz-scan-status');
            if (sEl) sEl.textContent = statusText;
        }

        const alerts = document.getElementById('sz-pkg-alerts');
        if (alerts) {
            let html = '';
            if (overLimit) {
                html += `<div class="sz-alert sz-alert-limit">⛔ 半身框总数超限：${total} 个 > 上限 ${limit} 个</div>`;
            }
            const bad = pkgNoMarkViolations();
            if (bad.length) html += `<div class="sz-alert sz-alert-err">⚠ 无需标注却有标注的帧（${bad.length}帧）：${bad.join('、')}</div>`;
            const miss = pkgMissingFrames();
            if (miss.length) html += `<div class="sz-alert sz-alert-warn">⚠ 正常标注却无标注的帧（${miss.length}帧）：${miss.join('、')}</div>`;
            alerts.innerHTML = html;
        }

        // 超限时面板震动提醒
        if (overLimit && panel && panelReady) {
            panel.classList.remove('sz-shake'); void panel.offsetWidth; panel.classList.add('sz-shake');
        }
    }

    function renderFrameView(results, respData) {
        const slot = document.getElementById('sz-frame-slot');
        if (!slot) return;

        const markStatus = respData.mark_status;
        const marks = (respData.markData && respData.markData.marks) || [];
        const ind = readFrameIndicator();

        const warnings = results.filter(function (r) { return r.type === 'warning'; });
        const infos = results.filter(function (r) { return r.type === 'info'; });
        const hasProblem = warnings.length > 0;

        let statusText, statusClass, border, titleColor;
        if (markStatus === 1) { statusText = '无需标注'; statusClass = 'sz-badge-warn'; border = 'rgba(255,165,0,.3)'; titleColor = '#ffa500'; }
        else if (hasProblem) { statusText = '正常标注'; statusClass = 'sz-badge-err'; border = 'rgba(233,69,96,.3)'; titleColor = '#e94560'; }
        else { statusText = '正常标注'; statusClass = 'sz-badge-ok'; border = 'rgba(78,204,163,.3)'; titleColor = '#4ecca3'; }

        const fullCount = countClass(marks, 'full');
        const halfCount = countClass(marks, 'half');
        const handCount = countClass(marks, 'hand');
        const unknown = marks.filter(function (m) { return !classifyMark(m); });

        let html = `<div class="sz-stats" style="border-color:${border};">
            <div class="sz-stats-title" style="color:${titleColor};">
                <span>当前帧统计</span>
                <span style="color:#556080;font-weight:normal;letter-spacing:0;">${ind ? '第 ' + ind.cur + ' / ' + ind.tot + ' 帧' : '帧号未知'}</span>
            </div>
            <div class="sz-stats-body">
                状态: <span class="sz-badge ${statusClass}">${statusText}</span><br>
                标注总数: ${marks.length} | 行人框: ${fullCount} | 手势框: ${handCount}
            </div>
            <div class="sz-halfline"><span class="lbl">本帧半身框</span><span class="num">${halfCount}</span><span class="lbl">个</span></div>
        </div>`;

        if (unknown.length) {
            const names = unknown.map(function (m) { return (m.pselect || (m.class && m.class.pname) || '?'); });
            html += `<div class="sz-info">未识别类别 ${unknown.length} 个：${names.join('、')}（可在设置里加类名）</div>`;
        }

        for (let i = 0; i < infos.length; i++) html += `<div class="sz-info">${infos[i].msg}</div>`;

        if (warnings.length === 0 && infos.length === 0) {
            html += `<div class="sz-pass">&#10003; 校验通过，无问题</div>`;
        } else if (warnings.length > 0) {
            html += `<div class="sz-warn-header">&#9888; 发现问题（${warnings.length}条）</div>`;
            for (let i = 0; i < warnings.length; i++) html += `<div class="sz-warn-item">${warnings[i].msg}</div>`;
        }

        slot.innerHTML = html;

        if (warnings.length > 0) {
            panel.classList.remove('sz-shake'); void panel.offsetWidth; panel.classList.add('sz-shake');
        }
    }

    function saveSettings() { try { localStorage.setItem(SETTINGS_KEY, JSON.stringify(settings)); } catch (e) {} }
    function loadSettings() {
        try {
            const raw = localStorage.getItem(SETTINGS_KEY);
            if (raw) settings = Object.assign({}, DEFAULT_SETTINGS, JSON.parse(raw));
        } catch (e) {}
    }

    // ============================================================
    // 初始化
    // ============================================================
    function init() {
        loadSettings();
        hookXHR();
        hookFetch();
        const start = function () {
            if (document.body) {
                createPanel();
                loadStats();
                updatePackageView();
                startFrameWatcher();
                if (cachedData) { autoRunCheck(); maybeAutoBatch(); }
            } else setTimeout(start, 200);
        };
        if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', start);
        else setTimeout(start, 300);
    }

    init();
})();