// ==UserScript==
// @name         GLM Coding Plan抢购助手
// @namespace    http://tampermonkey.net/
// @version      6.5
// @description  智能监控，支持配置多级备选抢购；自动穿透限流弹窗；默认使用拼团折扣码更优惠，介意误用
// @author       mumumi
// @include      https://*bigmodel.cn/glm-coding*
// @include      https://*bigmodel.cn/html/rate-limit.html*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=bigmodel.cn
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_registerMenuCommand
// @run-at       document-start
// @license      GNU GPLv3
// @downloadURL none
// ==/UserScript==

(function () {
    'use strict';

    // ── 最早读配置（document-start 时还没有主流程，只读 INTERCEPT 标志）──────
    const _ec = (() => { try { return JSON.parse(GM_getValue('glm_coding_config_v5', '{}')); } catch { return {}; } })();

    // ── 调试模式：JSON.parse 钩子让页面按钮显示可购（重启后生效）────────────
    // 仅影响前端渲染，不改变购买逻辑；真正有货仍需接口返回有效 bizId
    if (_ec.INTERCEPT) {
        const _oP = JSON.parse;
        JSON.parse = function (t, r) {
            const o = _oP(t, r);
            try { (function f(x) {
                if (!x || typeof x !== 'object') return;
                if ('isSoldOut' in x && x.isSoldOut === true) x.isSoldOut = false;
                if ('soldOut' in x && x.soldOut === true) x.soldOut = false;
                for (const k in x) f(x[k]);
            })(o); } catch {}
            return o;
        };
    }

    // ── 购买状态（供 fetch 拦截器与 UI 主循环共享）────────────────────────────
    const PS = {
        inProgress: false,
        result: null,       // null | 'success' | 'sold_out'
        bizId: null,
        payAmount: null,
    };

    // ── preview 接口拦截（始终开启）──────────────────────────────────────────
    // 真实模式：连续重试直到拿到有效 bizId（最多12秒），超时后返回售罄响应
    // 调试模式：立刻返回伪造的成功响应，触发支付弹窗验证完整流程
    const _oF = window.fetch;
    const _sl = ms => new Promise(r => setTimeout(r, ms));

    window.fetch = async function (...a) {
        const url = (typeof a[0] === 'string' ? a[0] : a[0]?.url) || '';
        if (!url.includes('/api/biz/pay/preview')) return _oF.apply(this, a);

        PS.inProgress = true; PS.result = null; PS.bizId = null; PS.payAmount = null;

        if (_ec.INTERCEPT) {
            // 调试模式：提取 productId 后伪造成功响应
            let pid = 'debug';
            try { pid = JSON.parse(a[1]?.body || '{}').productId || pid; } catch {}
            PS.result = 'success'; PS.payAmount = 149; PS.bizId = 'debug-' + pid; PS.inProgress = false;
            return new Response(
                JSON.stringify({ code: 200, success: true, data: { productId: pid, bizId: 'debug-' + pid, soldOut: false, payAmount: 149, originalAmount: 149, renewAmount: 149 } }),
                { status: 200, headers: { 'Content-Type': 'application/json' } }
            );
        }

        // 真实模式：剥离 AbortSignal，防止前端超时中断重试
        const [, ini = {}] = a;
        const { signal, ...ci } = ini;

        for (let i = 0; i < 120; i++) {
            try {
                const r = await _oF(url, { ...ci, credentials: 'include' });
                const txt = await r.text();
                let d; try { d = JSON.parse(txt); } catch { await _sl(100); continue; }

                if (d?.code === 200 && d?.data?.bizId) {
                    PS.result = 'success'; PS.bizId = d.data.bizId; PS.payAmount = d.data.payAmount; PS.inProgress = false;
                    return new Response(txt, { status: 200, headers: { 'Content-Type': 'application/json' } });
                }
                // soldOut:true 或其他错误码 → 继续重试，可能是高峰期瞬间售罄
            } catch {}
            await _sl(100);
        }

        // 120次（12秒）均未获得有效 bizId → 确认售罄
        PS.result = 'sold_out'; PS.inProgress = false;
        return new Response(
            '{"code":200,"data":{"soldOut":true,"bizId":null},"success":true,"msg":""}',
            { status: 200, headers: { 'Content-Type': 'application/json' } }
        );
    };

    // XHR 兜底（重定向到上方的 fetch 拦截器）
    const _xO = XMLHttpRequest.prototype.open, _xS = XMLHttpRequest.prototype.send;
    XMLHttpRequest.prototype.open = function (m, u, ...r) { this._u = u; return _xO.call(this, m, u, ...r); };
    XMLHttpRequest.prototype.send = function (...a) {
        if ((this._u || '').includes('/api/biz/pay/preview')) {
            const self = this;
            window.fetch(this._u, { method: this._m || 'POST', body: a[0], credentials: 'include' }).then(async r => {
                const txt = await r.text();
                const dp = (k, v) => Object.defineProperty(self, k, { value: v, configurable: true });
                dp('readyState', 4); dp('status', 200); dp('statusText', 'OK');
                dp('responseText', txt); dp('response', txt);
                const ev = new Event('readystatechange');
                if (typeof self.onreadystatechange === 'function') self.onreadystatechange(ev);
                self.dispatchEvent(ev);
                ['load', 'loadend'].forEach(t => { const e = new ProgressEvent(t); if (typeof self[`on${t}`] === 'function') self[`on${t}`](e); self.dispatchEvent(e); });
            });
            return;
        }
        return _xS.apply(this, a);
    };

    // ── 限流页立即跳回 ────────────────────────────────────────────────────────
    if (location.href.includes('rate-limit.html')) {
        location.replace('https://www.bigmodel.cn/glm-coding?ic=RYP02H270T&closedialog=true');
        return;
    }

    // ── 配置 ──────────────────────────────────────────────────────────────────
    const STORAGE_KEY = 'glm_coding_config_v5';
    const TABS_MAP = { 1: '连续包月', 2: '连续包季', 3: '连续包年' };
    const PKGS_MAP = { 1: 'Lite', 2: 'Pro', 3: 'Max' };
    const DEF = { TABS_PRIORITY: '1', PACKAGES_PRIORITY: '2,3,1', CHECK_INTERVAL: 100, SMART_REFRESH: true, INTERCEPT: false, SCHEDULE_TIME: '' };

    function loadCfg() { try { const s = GM_getValue(STORAGE_KEY, null); return s ? { ...DEF, ...JSON.parse(s) } : { ...DEF }; } catch { return { ...DEF }; } }
    function saveCfg(c) { GM_setValue(STORAGE_KEY, JSON.stringify(c)); }
    const CFG = loadCfg();

    // ── 每日套餐状态（localStorage，按日隔离）────────────────────────────────
    // -1未知  0进行中(重启复位)  1今日售罄  2今日已购
    const _today = new Date().toISOString().slice(0, 10);
    const _dsKey = `glm_ds_${_today}`;
    let _ds = (() => { try { return JSON.parse(localStorage.getItem(_dsKey) || '{}'); } catch { return {}; } })();
    Object.keys(_ds).forEach(k => { if (_ds[k] === 0) _ds[k] = -1; });
    _flush();
    function _flush() { localStorage.setItem(_dsKey, JSON.stringify(_ds)); }
    function getS(t, p) { return _ds[`${t}-${p}`] ?? -1; }
    function setS(t, p, v) { _ds[`${t}-${p}`] = v; _flush(); }

    if (Object.values(_ds).includes(2)) {
        setTimeout(() => setBar('🎉 今日已订阅成功，脚本停止。', '#237804'), 800);
        return;
    }

    // ── 扫描队列（过滤今日已确认售罄）────────────────────────────────────────
    const tabs = String(CFG.TABS_PRIORITY).split(',').map(Number).filter(Boolean);
    const pkgs = String(CFG.PACKAGES_PRIORITY).split(',').map(Number).filter(Boolean);
    const scanQueue = tabs.flatMap(t => pkgs.map(p => ({ tab: t, pkg: p }))).filter(({ tab: t, pkg: p }) => getS(t, p) !== 1);

    if (!scanQueue.length) {
        setTimeout(() => { setBar('📭 今日所有配置套餐均已售罄，脚本停止。', '#434343'); triggerPromo(); }, 800);
        return;
    }

    // ── 状态机变量 ────────────────────────────────────────────────────────────
    let state = 'SCANNING';   // SCANNING | TASK_UNIT | SLEEPING | DONE
    let qIdx = 0, sweepRestocks = [], lastTabSwitch = 0;
    let taskTarget = null, taskPhase = 'IDLE', taskClickTime = 0, taskRLCount = 0;
    let sleepUntil = 0;
    const MAX_RL = 3, MODAL_WAIT = 15000;

    // ── 工具函数 ──────────────────────────────────────────────────────────────
    function parseRestock(text) {
        const m = (text || '').match(/0?(\d{1,2})月0?(\d{1,2})日\s*(\d{1,2}):0?(\d{1,2})/);
        if (!m) return null;
        const t = new Date(new Date().getFullYear(), +m[1] - 1, +m[2], +m[3], +m[4]);
        return { dateStr: `${+m[1]}月${+m[2]}日`, msUntil: t - Date.now() };
    }
    function todayStr() { const d = new Date(); return `${d.getMonth() + 1}月${d.getDate()}日`; }
    function fmt(ms) {
        if (ms <= 0) return '0秒';
        const s = Math.floor(ms / 1000), m = Math.floor(s / 60), h = Math.floor(m / 60);
        return h ? `${h}h${m % 60}m` : m ? `${m}分${s % 60}秒` : `${s}秒`;
    }
    function calcSleepMs(ms) {
        if (ms > 3600000) return 240000;
        if (ms > 1800000) return 180000;
        if (ms >  900000) return 120000;
        if (ms >  300000) return  60000;
        if (ms >  120000) return  30000;
        if (ms >   60000) return  10000;
        if (ms >   10000) return   3000;
        return 0;
    }
    function parseScheduleTime(str) {
        if (!str) return null;
        const p = str.split(':').map(Number);
        const d = new Date();
        const t = new Date(d.getFullYear(), d.getMonth(), d.getDate(), p[0], p[1], p[2] || 0);
        return t.getTime();
    }

    // ── DOM 访问 ──────────────────────────────────────────────────────────────
    const tabEl     = n => document.querySelector(`#switchTabBox > div > .switch-tab-item:nth-child(${n + 1})`);
    const btnEl     = n => document.querySelector(`.glm-coding-package-list > div:nth-child(${n}) > div > .package-card-btn-box > button`);
    const canBuy    = b => b && !b.disabled && !b.classList.contains('is-disabled') && (b.innerText || '').includes('特惠订阅');
    const isSoldOut = b => /售罄|补货|暂时/.test(b?.innerText || '');

    // ── 弹窗检测 ──────────────────────────────────────────────────────────────
    function findRLModal() {
        for (const w of document.querySelectorAll('.el-dialog__wrapper'))
            if (getComputedStyle(w).display !== 'none' && (w.innerText || '').includes('当前购买人数较多')) return w;
        return null;
    }
    function isPayDialog() {
        // .pay-dialog 出现且不含限流提示 = 支付二维码弹窗
        const d = document.querySelector('.pay-dialog');
        if (!d) return false;
        const w = d.closest('.el-dialog__wrapper');
        if (!w || getComputedStyle(w).display === 'none') return false;
        return !(w.innerText || '').includes('当前购买人数较多');
    }
    function isSuccessDialog() {
        const w = document.querySelector('.pay-success-dialog-box')?.closest('.el-dialog__wrapper');
        return w ? getComputedStyle(w).display !== 'none' : false;
    }
    function closeModal(w) { w?.querySelector('.el-dialog__close')?.click(); }

    // ── 底部状态栏 ────────────────────────────────────────────────────────────
    let _bar = null;
    function setBar(html, bg = '#1677ff') {
        if (!_bar) {
            _bar = document.createElement('div');
            _bar.style.cssText = 'position:fixed;bottom:0;left:0;right:0;z-index:2147483647;padding:7px 16px;font:13px/1.5 system-ui,sans-serif;color:#fff;display:flex;align-items:center;justify-content:space-between;box-shadow:0 -2px 8px rgba(0,0,0,.25);transition:background .4s';
            const x = document.createElement('button');
            x.textContent = '×';
            x.style.cssText = 'background:rgba(255,255,255,.2);border:none;color:#fff;width:22px;height:22px;border-radius:4px;cursor:pointer;font-size:16px;line-height:1;flex-shrink:0';
            x.onclick = () => { _bar.remove(); _bar = null; };
            _bar.append(document.createElement('span'), x);
            document.body.appendChild(_bar);
        }
        _bar.style.background = bg;
        _bar.firstElementChild.innerHTML = `🤖 <b>抢购助手</b> &nbsp;|&nbsp; ${html}`;
    }

    // ── 支付报警：视口边框红色闪烁，pointer-events:none 不遮挡弹窗 ──────────
    let _alarm = null;
    function showPayAlarm() {
        if (_alarm) return;
        if (!document.getElementById('glm-alarm-s')) {
            const s = document.createElement('style'); s.id = 'glm-alarm-s';
            s.textContent = '@keyframes glm-al{0%,100%{box-shadow:inset 0 0 0 12px rgba(220,38,38,.92)}50%{box-shadow:inset 0 0 0 12px rgba(220,38,38,.08)}}';
            document.head.appendChild(s);
        }
        _alarm = document.createElement('div');
        // 整个视口但 pointer-events:none，只有内嵌阴影 → 仅边缘可见，不挡中间弹窗
        _alarm.style.cssText = 'position:fixed;inset:0;pointer-events:none;z-index:2147483646;animation:glm-al .5s steps(1) infinite';
        // 顶部横幅（弹窗通常在 15vh 以下，顶部有空间）
        const lbl = document.createElement('div');
        lbl.style.cssText = 'position:absolute;top:12px;left:50%;transform:translateX(-50%);background:rgba(220,38,38,.95);color:#fff;padding:5px 22px;border-radius:20px;font:700 15px system-ui,sans-serif;white-space:nowrap;letter-spacing:.5px';
        lbl.textContent = '⚠️  请立即扫码支付！';
        _alarm.appendChild(lbl);
        document.body.appendChild(_alarm);
    }

    // ── 推广弹窗 ──────────────────────────────────────────────────────────────
    function triggerPromo() {
        if (Date.now() > new Date('2026-04-30T23:59:59').getTime()) { setBar('所有套餐今日售罄，脚本停止。', '#434343'); return; }
        const PP = [
            { name: 'MiniMax',   desc: '¥29起，赠视频/语音/音乐额度', color: '#4CAF50', url: 'https://platform.minimaxi.com/subscribe/token-plan?code=FoGlERWIF3&source=link' },
            { name: '字节·方舟', desc: '首月低至¥8.9，多模型切换',    color: '#FF6B35', url: 'https://volcengine.com/L/YIeVPueJ2O4/' },
            { name: '讯飞星辰',  desc: '¥19起，首月¥3.9最低门槛',    color: '#00BFFF', url: 'https://maas.xfyun.cn/packageSubscription?inviteCode=MAAS-C6BE3A3B' },
            { name: '无问芯穹',  desc: '多模型聚合，首月¥19.9',       color: '#7B68EE', url: 'https://cloud.infini-ai.com/login?redirect=/genstudio/invitation&invite_code=IyveoKRS' },
        ];
        const rows = PP.map(p => `
            <a href="${p.url}" target="_blank" style="display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-radius:8px;text-decoration:none;border:1px solid #eee;background:#fafafa" onmouseover="this.style.background='#f0f7ff'" onmouseout="this.style.background='#fafafa'">
                <div style="display:flex;align-items:center;gap:10px">
                    <span style="width:8px;height:8px;border-radius:50%;background:${p.color};display:inline-block"></span>
                    <span style="font-weight:600;font-size:14px;color:#111">${p.name}</span>
                    <span style="font-size:12px;color:#888">${p.desc}</span>
                </div>
                <span style="font-size:12px;color:${p.color};font-weight:500">立即开通 →</span>
            </a>`).join('');
        const ov = document.createElement('div');
        ov.style.cssText = 'position:fixed;inset:0;background:rgba(0,0,0,.75);z-index:2147483645;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(5px);font-family:system-ui,sans-serif';
        ov.innerHTML = `
            <div style="background:#fff;width:520px;border-radius:16px;overflow:hidden;box-shadow:0 25px 50px -12px rgba(0,0,0,.5);max-height:90vh;display:flex;flex-direction:column">
                <div style="background:linear-gradient(135deg,#1e3c72,#2a5298);padding:24px 24px 20px;color:#fff">
                    <h2 style="margin:0 0 6px;font-size:20px">GLM Coding Plan 全部售罄 🫠</h2>
                    <p style="margin:0;opacity:.85;font-size:14px">配置的所有套餐今日已售罄，补货后脚本将继续监控</p>
                </div>
                <div style="padding:16px 20px;overflow-y:auto;flex:1">
                    <div style="font-size:13px;color:#888;margin-bottom:12px">👇 以下平台也有编程套餐和折扣链接</div>
                    <div style="display:flex;flex-direction:column;gap:8px">${rows}</div>
                </div>
                <div style="padding:14px 20px;border-top:1px solid #f0f0f0;text-align:right">
                    <button id="promo-x" style="background:none;border:1px solid #ddd;color:#888;padding:7px 18px;border-radius:6px;cursor:pointer;font-size:13px">关闭并停止脚本</button>
                </div>
            </div>`;
        document.body.appendChild(ov);
        ov.querySelector('#promo-x').onclick = () => ov.remove();
        ov.onclick = e => { if (e.target === ov) ov.remove(); };
    }

    // ── 配置面板 ──────────────────────────────────────────────────────────────
    function buildTransferBox(ct, dataMap, selectedStr, title) {
        const sel = selectedStr.split(',').filter(Boolean);
        const avail = Object.keys(dataMap).filter(k => !sel.includes(k));
        ct.innerHTML = `
            <div style="font-size:13px;font-weight:bold;margin-bottom:8px;color:#444">${title}</div>
            <div style="display:flex;align-items:stretch;gap:10px;margin-bottom:20px;height:140px">
                <div style="flex:1;border:1px solid #ddd;border-radius:6px;display:flex;flex-direction:column;background:#fafafa">
                    <div style="padding:6px 10px;border-bottom:1px solid #ddd;font-size:12px;color:#666;background:#f0f0f0;border-radius:6px 6px 0 0">备选池</div>
                    <ul class="tf-left" style="list-style:none;padding:5px;margin:0;flex:1;overflow-y:auto">
                        ${avail.map(k => `<li data-val="${k}" class="tf-item">${dataMap[k]}</li>`).join('')}
                    </ul>
                </div>
                <div style="display:flex;flex-direction:column;justify-content:center;gap:8px">
                    <button type="button" class="tf-btn tf-r">▶</button>
                    <button type="button" class="tf-btn tf-l">◀</button>
                </div>
                <div style="flex:1;border:1px solid #ddd;border-radius:6px;display:flex;flex-direction:column;background:#fff">
                    <div style="padding:6px 10px;border-bottom:1px solid #ddd;font-size:12px;color:#666;background:#e6f7ff;border-radius:6px 6px 0 0">选中且排序（自上而下）</div>
                    <ul class="tf-right" style="list-style:none;padding:5px;margin:0;flex:1;overflow-y:auto">
                        ${sel.map(k => `<li data-val="${k}" class="tf-item">${dataMap[k]}</li>`).join('')}
                    </ul>
                </div>
                <div style="display:flex;flex-direction:column;justify-content:center;gap:8px">
                    <button type="button" class="tf-btn tf-up">▲</button>
                    <button type="button" class="tf-btn tf-dn">▼</button>
                </div>
            </div>`;
        const L = ct.querySelector('.tf-left'), R = ct.querySelector('.tf-right');
        ct.querySelectorAll('ul').forEach(ul => ul.addEventListener('click', e => {
            if (e.target.tagName === 'LI') { ct.querySelectorAll('.tf-item').forEach(i => i.classList.remove('active')); e.target.classList.add('active'); }
        }));
        ct.querySelector('.tf-r').onclick = () => { const a = L.querySelector('.active'); if (a) { R.appendChild(a); a.classList.remove('active'); } };
        ct.querySelector('.tf-l').onclick = () => { const a = R.querySelector('.active'); if (a) { L.appendChild(a); a.classList.remove('active'); } };
        ct.querySelector('.tf-up').onclick = () => { const a = R.querySelector('.active'); if (a?.previousElementSibling) R.insertBefore(a, a.previousElementSibling); };
        ct.querySelector('.tf-dn').onclick = () => { const a = R.querySelector('.active'); if (a?.nextElementSibling) R.insertBefore(a.nextElementSibling, a); };
        return () => [...R.querySelectorAll('.tf-item')].map(i => i.dataset.val).join(',');
    }

    function openConfigPanel() {
        document.getElementById('glm-cfg-ov')?.remove();
        if (!document.getElementById('glm-tf-s')) {
            const s = document.createElement('style'); s.id = 'glm-tf-s';
            s.textContent = '.tf-item{padding:6px 10px;margin-bottom:4px;border-radius:4px;cursor:pointer;font-size:13px;color:#333;border:1px solid transparent;transition:all .15s}.tf-item:hover{background:#f5f5f5}.tf-item.active{background:#e6f7ff;border-color:#91d5ff;color:#1890ff;font-weight:700}.tf-btn{padding:4px 8px;font-size:10px;cursor:pointer;border:1px solid #d9d9d9;border-radius:4px;background:#fff;color:#555;height:28px;transition:.2s}.tf-btn:hover{border-color:#40a9ff;color:#40a9ff}';
            document.head.appendChild(s);
        }
        const ov = document.createElement('div'); ov.id = 'glm-cfg-ov';
        ov.style.cssText = 'position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:2147483646;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(2px);font-family:system-ui,sans-serif';
        const panel = document.createElement('div');
        panel.style.cssText = 'background:#fff;color:#333;width:540px;padding:24px;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.3)';
        panel.innerHTML = `
            <h3 style="margin:0 0 20px;font-size:18px;color:#1a1a1a">⚙️ 抢购助手配置</h3>
            <div id="glm-wp"></div>
            <div id="glm-wt"></div>
            <div style="margin-bottom:20px;padding-top:10px;border-top:1px dashed #eee;display:flex;flex-direction:column;gap:10px">
                <label style="display:flex;align-items:center;cursor:pointer">
                    <input type="checkbox" id="glm-sm" ${CFG.SMART_REFRESH ? 'checked' : ''} style="margin-right:8px">
                    <span style="font-size:14px;color:#555">启用智能刷新（梯度嗅探补货时间）</span>
                </label>
                <label style="display:flex;align-items:center;cursor:pointer">
                    <input type="checkbox" id="glm-ic" ${CFG.INTERCEPT ? 'checked' : ''} style="margin-right:8px">
                    <span style="font-size:14px;color:#c41d7f">调试模式：强制显示可购按钮 + 伪造接口（重启生效）</span>
                </label>
                <div style="display:flex;align-items:center;gap:8px;flex-wrap:wrap">
                    <span style="font-size:14px;color:#555">定时自动点击：</span>
                    <input type="time" id="glm-sched" step="1" value="${CFG.SCHEDULE_TIME || ''}" style="padding:4px 8px;border:1px solid #d9d9d9;border-radius:4px;font-size:13px;color:#333">
                    <span style="font-size:12px;color:#999">不填则由扫描自动触发</span>
                </div>
            </div>
            <div style="display:flex;justify-content:flex-end;gap:10px">
                <button id="glm-cc" style="padding:8px 16px;border:1px solid #ddd;background:#f5f5f5;border-radius:6px;cursor:pointer;color:#666">取消</button>
                <button id="glm-cs" style="padding:8px 20px;border:none;background:#1890ff;color:#fff;border-radius:6px;cursor:pointer;font-weight:700">保存并刷新</button>
            </div>`;
        ov.appendChild(panel);
        document.body.appendChild(ov);
        const getPkgs = buildTransferBox(document.getElementById('glm-wp'), PKGS_MAP, CFG.PACKAGES_PRIORITY, '套餐优先级');
        const getTabs = buildTransferBox(document.getElementById('glm-wt'), TABS_MAP, CFG.TABS_PRIORITY, '订阅周期优先级');
        panel.querySelector('#glm-cc').onclick = () => ov.remove();
        panel.querySelector('#glm-cs').onclick = () => {
            const p = getPkgs(), t = getTabs();
            if (!p || !t) { alert('请至少各选一个！'); return; }
            saveCfg({ TABS_PRIORITY: t, PACKAGES_PRIORITY: p, SMART_REFRESH: panel.querySelector('#glm-sm').checked, INTERCEPT: panel.querySelector('#glm-ic').checked, CHECK_INTERVAL: CFG.CHECK_INTERVAL, SCHEDULE_TIME: panel.querySelector('#glm-sched').value });
            ov.remove(); alert('已保存，即将刷新。'); location.reload();
        };
        ov.onclick = e => { if (e.target === ov) ov.remove(); };
    }

    GM_registerMenuCommand('⚙️ 打开配置面板', openConfigPanel);
    GM_registerMenuCommand('🗑️ 清除今日套餐状态缓存', () => { localStorage.removeItem(_dsKey); alert('今日状态已清除，即将刷新。'); location.reload(); });

    // ── 主循环 ────────────────────────────────────────────────────────────────
    function tick() {
        if (state === 'DONE') return;
        if (state === 'SLEEPING') {
            const rem = sleepUntil - Date.now();
            if (rem <= 0) location.replace('https://www.bigmodel.cn/glm-coding?ic=RYP02H270T&closedialog=true');
            else setBar(`💤 休眠中，<b>${fmt(rem)}</b> 后刷新`, '#434343');
            return;
        }
        if (state === 'TASK_UNIT') { doTaskUnit(); return; }
        doScan();
    }

    function doScan() {
        if (qIdx >= scanQueue.length) { onSweepDone(); return; }
        const { tab, pkg } = scanQueue[qIdx];
        const te = tabEl(tab);
        if (!te) return;
        if (!te.classList.contains('active')) {
            te.click(); te.scrollIntoView({ behavior: 'auto', block: 'center' });
            lastTabSwitch = Date.now(); setBar(`🔄 切换到 ${TABS_MAP[tab]}...`); return;
        }
        if (Date.now() - lastTabSwitch < 400) return;

        const b = btnEl(pkg);
        if (canBuy(b)) {
            // 若配置了定时且尚未到时间，停在此处等候（不前进队列）
            const schedTs = parseScheduleTime(CFG.SCHEDULE_TIME);
            if (schedTs && Date.now() < schedTs - 800) {
                setBar(`⏰ 预就位 ${TABS_MAP[tab]} · ${PKGS_MAP[pkg]}，<b>${fmt(schedTs - Date.now())}</b> 后自动点击`, '#7c3aed');
                return;
            }
            taskTarget = { tab, pkg }; taskPhase = 'IDLE'; taskRLCount = 0;
            setS(tab, pkg, 0); state = 'TASK_UNIT';
            setBar(`🎯 发现可购！${TABS_MAP[tab]} · ${PKGS_MAP[pkg]}，即将点击...`, '#389e0d');
            return;
        }

        const ri = parseRestock(b?.innerText);
        if (ri?.dateStr === todayStr() && ri.msUntil > 0) sweepRestocks.push(ri);
        setBar(`🔍 扫描 ${TABS_MAP[tab]} · ${PKGS_MAP[pkg]} (${qIdx + 1}/${scanQueue.length})`);
        qIdx++;
    }

    function onSweepDone() {
        if (!sweepRestocks.length) {
            state = 'DONE'; setBar('📭 今日全部售罄，脚本停止。', '#434343'); triggerPromo(); return;
        }
        sweepRestocks.sort((a, b) => a.msUntil - b.msUntil);
        const nearest = sweepRestocks[0];
        const sleep = calcSleepMs(nearest.msUntil);
        if (sleep === 0) {
            setBar(`⚡ 补货倒计时 <b>${fmt(nearest.msUntil)}</b>，高频监控！`, '#d4380d');
            qIdx = 0; sweepRestocks = []; return;
        }
        if (CFG.SMART_REFRESH) {
            state = 'SLEEPING'; sleepUntil = Date.now() + sleep;
            setBar(`💤 补货还需 <b>${fmt(nearest.msUntil)}</b>，<b>${fmt(sleep)}</b> 后刷新`, '#434343');
        } else { qIdx = 0; sweepRestocks = []; }
    }

    function doTaskUnit() {
        const { tab, pkg } = taskTarget;
        const te = tabEl(tab);
        if (!te) return;
        if (!te.classList.contains('active')) { te.click(); return; }
        const b = btnEl(pkg);

        if (taskPhase === 'IDLE') {
            if (isSoldOut(b)) { exitTask(); return; }
            if (!canBuy(b)) {
                // 防抖期（按钮暂时禁用但非售罄），等待恢复
                setBar(`⏳ 等待按钮就绪... ${TABS_MAP[tab]} · ${PKGS_MAP[pkg]}`, '#d46b08');
                return;
            }
            // 重置购买状态，点击按钮，fetch 拦截器接管后续重试
            PS.result = null; PS.inProgress = true;
            b.click(); taskClickTime = Date.now(); taskPhase = 'WAITING';
            setBar(`🔄 已点击，接口重试中... ${TABS_MAP[tab]} · ${PKGS_MAP[pkg]}（限流 ${taskRLCount}/${MAX_RL}）`, '#d46b08');
            return;
        }

        if (taskPhase === 'WAITING') {
            // 1. 限流弹窗（购买人数较多）→ 关闭后重试
            const rlw = findRLModal();
            if (rlw) {
                closeModal(rlw); taskRLCount++;
                if (taskRLCount >= MAX_RL) {
                    setBar(`🔁 连续 ${MAX_RL} 次限流，即将刷新...`, '#cf1322');
                    setTimeout(() => location.replace('https://www.bigmodel.cn/glm-coding?ic=RYP02H270T&closedialog=true'), 50);
                    return;
                }
                setBar(`⚠️ 限流 ${taskRLCount}/${MAX_RL}，重试中...`, '#d46b08');
                taskPhase = 'IDLE'; return;
            }

            // 2. 支付二维码弹窗 = 抢购成功，立即停止并报警提示扫码
            //    接口有金额(PS.payAmount>0)是最可靠判断；弹窗出现也作为兜底
            if (isPayDialog()) {
                const hasAmount = PS.payAmount && PS.payAmount > 0;
                const waited3s  = Date.now() - taskClickTime > 3000;
                if (hasAmount || waited3s) {
                    setS(tab, pkg, 2); state = 'DONE';
                    showPayAlarm();
                    setBar('💳 <b>抢购成功！请立即扫码支付！</b> 脚本已停止。', '#16a34a');
                }
                // 弹窗刚出现但金额未渲染，等一会儿
                return;
            }

            // 3. 付款完成弹窗（兜底）
            if (isSuccessDialog()) {
                setS(tab, pkg, 2); state = 'DONE';
                setBar('🎉 订阅成功！恭喜！', '#237804'); return;
            }

            // 4. fetch 已返回 sold_out，给 Vue 留 2s 渲染弹窗；若没弹窗则直接退出
            if (!PS.inProgress && PS.result === 'sold_out' && Date.now() - taskClickTime > 2000) {
                exitTask(); return;
            }

            // 5. 超时保底（15s）
            if (Date.now() - taskClickTime > MODAL_WAIT) {
                if (isSoldOut(b)) exitTask(); else taskPhase = 'IDLE';
            }
        }
    }

    function exitTask() {
        setS(taskTarget.tab, taskTarget.pkg, 1);
        setBar(`📦 ${TABS_MAP[taskTarget.tab]} · ${PKGS_MAP[taskTarget.pkg]} 售罄，继续...`);
        qIdx++; taskTarget = null; taskPhase = 'IDLE'; taskRLCount = 0;
        state = 'SCANNING';
    }

    // ── 启动 ──────────────────────────────────────────────────────────────────
    setInterval(tick, CFG.CHECK_INTERVAL);

})();