// ==UserScript==
// @name         ChatGPT Team 长链接生成器（小红书前后网络）
// @namespace    https://chatgpt.com/
// @version      1.0.5
// @description  在 chatgpt.com 任意页面生成 ChatGPT Team hosted checkout 长链接，默认澳洲 firstfocus，支持优惠码自动匹配国家/币种、自定义优惠码按钮、手动填入 /api/auth/session 内容、居中方形可拖拽窗口。
// @author       小红书前后网络
// @match        https://chatgpt.com/*
// @match        https://www.chatgpt.com/*
// @include      /^https:\/\/chatgpt\.com(?:\/.*)?$/
// @include      /^https:\/\/www\.chatgpt\.com(?:\/.*)?$/
// @run-at       document-start
// @grant        GM_addStyle
// @grant        GM_setClipboard
// ==/UserScript==

(function () {
  'use strict';

  const VERSION = '1.0.5';
  const ROOT_ID = 'tm-team-link-root';
  const LAUNCHER_ID = 'tm-team-link-launcher';
  const MASK_ID = 'tm-team-link-mask';
  const PANEL_ID = 'tm-team-link-panel';
  const HEADER_ID = 'tm-team-link-header';

  const SESSION_URL = 'https://chatgpt.com/api/auth/session';
  const CHECKOUT_URL = 'https://chatgpt.com/backend-api/payments/checkout';

  const COUPONS = [
    { group: '澳洲优惠码', label: '澳洲 · firstfocus（默认）', promoCode: 'firstfocus', country: 'AU', currency: 'AUD' },
    { group: '美国优惠码', label: '美国 · talentgeniusus', promoCode: 'talentgeniusus', country: 'US', currency: 'USD' },
    { group: '美国优惠码', label: '美国 · thealloynetwork', promoCode: 'thealloynetwork', country: 'US', currency: 'USD' },
    { group: '美国优惠码', label: '美国 · alongsideus', promoCode: 'alongsideus', country: 'US', currency: 'USD' },
    { group: '美国优惠码', label: '美国 · monicaius', promoCode: 'monicaius', country: 'US', currency: 'USD' },
    { group: '英国优惠码', label: '英国 · aibuildgroupgb', promoCode: 'aibuildgroupgb', country: 'GB', currency: 'GBP' },
    { group: '英国优惠码', label: '英国 · geccogb', promoCode: 'geccogb', country: 'GB', currency: 'GBP' },
    { group: '英国优惠码', label: '英国 · codestonegb', promoCode: 'codestonegb', country: 'GB', currency: 'GBP' },
    { group: '肯尼亚优惠码', label: '肯尼亚 · wildmangoke', promoCode: 'wildmangoke', country: 'KE', currency: 'USD' },
  ];

  const state = {
    lastUrl: '',
    lastData: null,
    lastPayload: null,
    dragged: false,
  };

  function addStyle(css) {
    if (typeof GM_addStyle === 'function') {
      GM_addStyle(css);
      return;
    }
    const style = document.createElement('style');
    style.textContent = css;
    document.documentElement.appendChild(style);
  }

  addStyle(`
    #${LAUNCHER_ID} {
      position: fixed !important;
      right: 22px !important;
      bottom: 22px !important;
      z-index: 2147483644 !important;
      border: 0 !important;
      border-radius: 999px !important;
      padding: 13px 18px !important;
      background: #111827 !important;
      color: #fff !important;
      font: 600 14px/1.2 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
      box-shadow: 0 16px 45px rgba(0,0,0,.24) !important;
      cursor: pointer !important;
      user-select: none !important;
    }
    #${LAUNCHER_ID}:hover { filter: brightness(1.08) !important; }

    #${MASK_ID} {
      display: none;
      position: fixed;
      inset: 0;
      z-index: 2147483645;
      background: rgba(17, 24, 39, .36);
      backdrop-filter: blur(2px);
    }

    #${PANEL_ID} {
      display: none;
      position: fixed;
      z-index: 2147483646;
      width: min(720px, calc(100vw - 24px));
      height: min(720px, calc(100vh - 24px));
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      overflow: hidden;
      box-sizing: border-box;
      background: #fff;
      color: #111827;
      border: 1px solid #d9d9e3;
      border-radius: 20px;
      box-shadow: 0 26px 90px rgba(0, 0, 0, .26);
      font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    }

    #${PANEL_ID} * { box-sizing: border-box; }

    #${HEADER_ID} {
      height: 58px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 0 16px;
      border-bottom: 1px solid #ececf1;
      background: #fff;
      cursor: move;
      user-select: none;
    }

    .tm-team-title {
      display: flex;
      flex-direction: column;
      gap: 2px;
      min-width: 0;
    }
    .tm-team-title strong {
      font-size: 17px;
      line-height: 1.1;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .tm-team-title span {
      font-size: 12px;
      color: #6b7280;
    }
    .tm-team-header-actions {
      display: flex;
      align-items: center;
      gap: 8px;
      flex: 0 0 auto;
    }
    .tm-icon-btn {
      width: 34px;
      height: 34px;
      border: 0;
      border-radius: 10px;
      background: #f3f4f6;
      color: #111827;
      cursor: pointer;
      font-size: 18px;
      line-height: 1;
    }
    .tm-icon-btn:hover { background: #e5e7eb; }

    .tm-team-body {
      height: calc(100% - 128px);
      overflow: auto;
      padding: 16px;
      background: #fff;
    }

    .tm-team-footer {
      height: 70px;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 16px;
      border-top: 1px solid #ececf1;
      background: #fff;
    }

    .tm-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin-bottom: 12px;
    }
    .tm-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
    .tm-field-full { grid-column: 1 / -1; }
    .tm-label { font-weight: 700; color: #1f2937; }
    .tm-hint { color: #6b7280; font-size: 12px; }
    .tm-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

    #${PANEL_ID} input,
    #${PANEL_ID} select,
    #${PANEL_ID} textarea {
      width: 100%;
      min-height: 44px;
      border: 1px solid #d1d5db;
      border-radius: 12px;
      padding: 10px 12px;
      outline: none;
      background: #fff;
      color: #111827;
      font: 14px/1.35 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    #${PANEL_ID} textarea {
      min-height: 92px;
      resize: vertical;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 12.5px;
    }
    #${PANEL_ID} input:focus,
    #${PANEL_ID} select:focus,
    #${PANEL_ID} textarea:focus {
      border-color: #111827;
      box-shadow: 0 0 0 3px rgba(17, 24, 39, .10);
    }

    .tm-card, #${PANEL_ID} details {
      border: 1px solid #ececf1;
      border-radius: 14px;
      background: #fafafa;
      padding: 12px;
      margin: 12px 0;
    }
    #${PANEL_ID} details summary {
      cursor: pointer;
      font-weight: 800;
      color: #1f2937;
      user-select: none;
    }
    #${PANEL_ID} details .tm-details-inner { padding-top: 12px; }

    .tm-status {
      border: 1px solid #e5e7eb;
      border-radius: 12px;
      background: #f9fafb;
      padding: 10px 12px;
      color: #374151;
      margin-top: 10px;
      min-height: 40px;
      white-space: pre-wrap;
      word-break: break-word;
    }
    .tm-status.ok { border-color: #bbf7d0; background: #f0fdf4; color: #166534; }
    .tm-status.err { border-color: #fecaca; background: #fef2f2; color: #991b1b; }
    .tm-status.warn { border-color: #fde68a; background: #fffbeb; color: #92400e; }

    .tm-btn {
      min-height: 44px;
      border: 0;
      border-radius: 12px;
      padding: 10px 14px;
      cursor: pointer;
      font-weight: 800;
      white-space: nowrap;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    .tm-primary { background: #111827; color: #fff; }
    .tm-secondary { background: #f3f4f6; color: #111827; }
    .tm-danger { background: #b91c1c; color: #fff; }
    .tm-btn:disabled { opacity: .48; cursor: not-allowed; }

    .tm-table-wrap { overflow: auto; max-height: 220px; border: 1px solid #e5e7eb; border-radius: 12px; background: #fff; }
    .tm-table { width: 100%; border-collapse: collapse; min-width: 520px; }
    .tm-table th, .tm-table td { padding: 9px 10px; border-bottom: 1px solid #f1f5f9; text-align: left; font-size: 12px; }
    .tm-table th { position: sticky; top: 0; background: #f9fafb; color: #374151; }
    .tm-table code { font-size: 12px; }

    @media (max-width: 680px) {
      #${PANEL_ID} {
        width: calc(100vw - 16px);
        height: calc(100vh - 16px);
        border-radius: 16px;
      }
      .tm-grid { grid-template-columns: 1fr; }
      .tm-team-footer { overflow-x: auto; }
      #${LAUNCHER_ID} { right: 14px !important; bottom: 14px !important; }
    }
  `);

  function waitForBody(cb) {
    if (document.body) {
      cb();
      return;
    }
    const timer = setInterval(() => {
      if (document.body) {
        clearInterval(timer);
        cb();
      }
    }, 80);
  }

  function escapeHtml(value) {
    return String(value ?? '')
      .replace(/&/g, '&')
      .replace(/</g, '&lt;')
      .replace(/>/g, '&gt;')
      .replace(/"/g, '&quot;')
      .replace(/'/g, '&#039;');
  }

  function getEl(id) {
    return document.getElementById(id);
  }

  function getCouponByCode(code) {
    return COUPONS.find((x) => x.promoCode === code) || COUPONS[0];
  }

  function couponOptionsHtml() {
    const groups = [...new Set(COUPONS.map((x) => x.group))];
    return groups.map((group) => {
      const options = COUPONS
        .filter((x) => x.group === group)
        .map((x) => `<option value="${escapeHtml(x.promoCode)}">${escapeHtml(x.label)} · ${escapeHtml(x.country)}/${escapeHtml(x.currency)}</option>`)
        .join('');
      return `<optgroup label="${escapeHtml(group)}">${options}</optgroup>`;
    }).join('');
  }

  function couponTableHtml() {
    return COUPONS.map((x) => `
      <tr>
        <td>${escapeHtml(x.group.replace('优惠码', ''))}</td>
        <td><code>${escapeHtml(x.promoCode)}</code></td>
        <td><code>${escapeHtml(x.country)}</code></td>
        <td><code>${escapeHtml(x.currency)}</code></td>
      </tr>
    `).join('');
  }

  function ensureUi() {
    if (getEl(ROOT_ID) && getEl(LAUNCHER_ID) && getEl(PANEL_ID)) return;

    const oldRoot = getEl(ROOT_ID);
    if (oldRoot) oldRoot.remove();

    const root = document.createElement('div');
    root.id = ROOT_ID;
    root.innerHTML = `
      <button id="${LAUNCHER_ID}" type="button">生成 Team 长链接</button>
      <div id="${MASK_ID}"></div>
      <section id="${PANEL_ID}" aria-label="ChatGPT Team 长链接生成器">
        <header id="${HEADER_ID}">
          <div class="tm-team-title">
            <strong>生成 Team 长链接</strong>
            <span>v${escapeHtml(VERSION)} · 居中方形窗口 · 支持拖拽和手动 Session</span>
          </div>
          <div class="tm-team-header-actions">
            <button class="tm-icon-btn" id="tm-center-panel" type="button" title="重新居中">⌖</button>
            <button class="tm-icon-btn" id="tm-close-panel" type="button" title="关闭">×</button>
          </div>
        </header>

        <main class="tm-team-body">
          <div class="tm-grid">
            <label class="tm-field tm-field-full">
              <span class="tm-label">优惠码 / 自动匹配国家币种</span>
              <select id="tm-coupon-select">${couponOptionsHtml()}</select>
              <span class="tm-hint" id="tm-coupon-hint"></span>
            </label>

            <div class="tm-field tm-field-full tm-card" style="margin:0 0 4px 0;">
              <span class="tm-label">自定义优惠码</span>
              <div class="tm-grid" style="margin-bottom:8px;">
                <label class="tm-field">
                  <span class="tm-hint">优惠码</span>
                  <input id="tm-custom-promo" placeholder="例如 firstfocus 或其他 promoCode" autocomplete="off" />
                </label>
                <label class="tm-field">
                  <span class="tm-hint">国家代码</span>
                  <input id="tm-custom-country" placeholder="默认跟随当前选中，例如 AU" autocomplete="off" />
                </label>
                <label class="tm-field">
                  <span class="tm-hint">币种</span>
                  <input id="tm-custom-currency" placeholder="默认跟随当前选中，例如 AUD" autocomplete="off" />
                </label>
                <div class="tm-field" style="justify-content:end;">
                  <button class="tm-btn tm-secondary" id="tm-apply-custom-promo" type="button">应用自定义码</button>
                </div>
              </div>
              <span class="tm-hint">点击按钮后会写入“高级设置”的覆盖优惠码/国家/币种；不填国家币种时，默认沿用当前选中优惠码的国家币种。</span>
            </div>

            <label class="tm-field">
              <span class="tm-label">工作区名称</span>
              <input id="tm-workspace" value="MyTeam" placeholder="例如 MyTeam" autocomplete="off" />
            </label>

            <label class="tm-field">
              <span class="tm-label">席位数</span>
              <input id="tm-seats" type="number" min="2" step="1" value="2" />
            </label>

            <label class="tm-field">
              <span class="tm-label">付款周期</span>
              <select id="tm-interval">
                <option value="month">month（月付）</option>
                <option value="year">year（年付）</option>
              </select>
            </label>

            <label class="tm-field">
              <span class="tm-label">计划</span>
              <input id="tm-plan" value="chatgptteamplan" autocomplete="off" />
            </label>
          </div>

          <details>
            <summary>高级设置 / 国家币种手动覆盖</summary>
            <div class="tm-details-inner">
              <div class="tm-grid">
                <label class="tm-field">
                  <span class="tm-label">覆盖国家代码</span>
                  <input id="tm-country-override" placeholder="默认跟随优惠码，例如 US / GB / KE" autocomplete="off" />
                </label>
                <label class="tm-field">
                  <span class="tm-label">覆盖币种</span>
                  <input id="tm-currency-override" placeholder="默认跟随优惠码，例如 USD / GBP" autocomplete="off" />
                </label>
                <label class="tm-field tm-field-full">
                  <span class="tm-label">覆盖优惠码</span>
                  <input id="tm-promo-override" placeholder="默认使用上方选择的优惠码；需要测试其他码时填这里" autocomplete="off" />
                </label>
              </div>
              <p class="tm-hint">留空时自动按优惠码匹配国家和币种。肯尼亚默认使用 KE / USD，可在这里手动改币种。</p>
            </div>
          </details>

          <details>
            <summary>Session Token 来源 / 支持手动填入</summary>
            <div class="tm-details-inner">
              <div class="tm-grid">
                <label class="tm-field tm-field-full">
                  <span class="tm-label">Token 来源</span>
                  <select id="tm-token-mode">
                    <option value="auto">自动获取 /api/auth/session（默认）</option>
                    <option value="manual">手动粘贴 Session JSON / Access Token</option>
                  </select>
                </label>

                <label class="tm-field tm-field-full">
                  <span class="tm-label">手动 Session JSON / Access Token</span>
                  <textarea id="tm-manual-session" spellcheck="false" placeholder='可以粘贴完整 JSON，例如 {"accessToken":"..."}；也可以只粘贴 accessToken 字符串。'></textarea>
                  <span class="tm-hint">不要把 accessToken 发给别人。这里的内容只保存在当前输入框，不写入本地存储。</span>
                </label>
              </div>
              <div class="tm-row">
                <button class="tm-btn tm-secondary" id="tm-fill-session" type="button">自动读取并填入</button>
                <button class="tm-btn tm-secondary" id="tm-clear-session" type="button">清空手动内容</button>
              </div>
            </div>
          </details>

          <details>
            <summary>查看优惠码对照表</summary>
            <div class="tm-details-inner">
              <div class="tm-table-wrap">
                <table class="tm-table">
                  <thead>
                    <tr><th>国家/地区</th><th>优惠码</th><th>country</th><th>currency</th></tr>
                  </thead>
                  <tbody>${couponTableHtml()}</tbody>
                </table>
              </div>
            </div>
          </details>

          <label class="tm-field">
            <span class="tm-label">输出结果 / 长链接</span>
            <textarea id="tm-output" spellcheck="false" placeholder="生成成功后，长链接会显示在这里" readonly></textarea>
          </label>

          <div id="tm-status" class="tm-status">准备就绪。选择优惠码后会自动匹配国家和币种。</div>

          <p class="tm-hint" style="margin-top:12px;">
            提示：生成后请在 checkout 页面核对国家、币种、价格和优惠是否正确。不要使用不适用于你真实计费信息的优惠。
          </p>
        </main>

        <footer class="tm-team-footer">
          <button class="tm-btn tm-primary" id="tm-generate" type="button">生成长链接</button>
          <button class="tm-btn tm-secondary" id="tm-copy" type="button">复制结果</button>
          <button class="tm-btn tm-secondary" id="tm-open" type="button">打开链接</button>
          <button class="tm-btn tm-danger" id="tm-clear" type="button">清空</button>
        </footer>
      </section>
    `;

    document.body.appendChild(root);
    bindEvents();
    refreshCouponHint();
  }

  function setStatus(message, type = '') {
    const el = getEl('tm-status');
    if (!el) return;
    el.textContent = message;
    el.className = `tm-status${type ? ' ' + type : ''}`;
  }

  function centerPanel() {
    const panel = getEl(PANEL_ID);
    if (!panel) return;

    const w = Math.min(720, window.innerWidth - 24);
    const h = Math.min(720, window.innerHeight - 24);
    panel.style.width = `${Math.max(320, w)}px`;
    panel.style.height = `${Math.max(420, h)}px`;
    panel.style.left = `${Math.max(8, (window.innerWidth - Math.max(320, w)) / 2)}px`;
    panel.style.top = `${Math.max(8, (window.innerHeight - Math.max(420, h)) / 2)}px`;
    panel.style.transform = 'none';
    state.dragged = false;
  }

  function clampPanelIntoView() {
    const panel = getEl(PANEL_ID);
    if (!panel || panel.style.display === 'none') return;
    const rect = panel.getBoundingClientRect();
    const left = Math.max(8, Math.min(rect.left, window.innerWidth - rect.width - 8));
    const top = Math.max(8, Math.min(rect.top, window.innerHeight - rect.height - 8));
    panel.style.left = `${left}px`;
    panel.style.top = `${top}px`;
    panel.style.transform = 'none';
  }

  function showPanel() {
    ensureUi();
    const mask = getEl(MASK_ID);
    const panel = getEl(PANEL_ID);
    if (!mask || !panel) return;
    mask.style.display = 'block';
    panel.style.display = 'block';
    centerPanel();
  }

  function hidePanel() {
    const mask = getEl(MASK_ID);
    const panel = getEl(PANEL_ID);
    if (mask) mask.style.display = 'none';
    if (panel) panel.style.display = 'none';
  }

  function bindEvents() {
    getEl(LAUNCHER_ID)?.addEventListener('click', showPanel);
    getEl(MASK_ID)?.addEventListener('click', hidePanel);
    getEl('tm-close-panel')?.addEventListener('click', hidePanel);
    getEl('tm-center-panel')?.addEventListener('click', centerPanel);
    getEl('tm-coupon-select')?.addEventListener('change', refreshCouponHint);
    getEl('tm-apply-custom-promo')?.addEventListener('click', applyCustomPromo);
    getEl('tm-generate')?.addEventListener('click', generateLink);
    getEl('tm-copy')?.addEventListener('click', copyResult);
    getEl('tm-open')?.addEventListener('click', openResult);
    getEl('tm-clear')?.addEventListener('click', clearResult);
    getEl('tm-fill-session')?.addEventListener('click', fillSessionManually);
    getEl('tm-clear-session')?.addEventListener('click', () => {
      const ta = getEl('tm-manual-session');
      if (ta) ta.value = '';
      setStatus('已清空手动 Session 内容。');
    });

    enablePanelDrag(getEl(PANEL_ID), getEl(HEADER_ID));
  }

  function refreshCouponHint() {
    const select = getEl('tm-coupon-select');
    const hint = getEl('tm-coupon-hint');
    if (!select || !hint) return;
    const cfg = getCouponByCode(select.value);
    const promoOverride = (getEl('tm-promo-override')?.value || '').trim();
    const countryOverride = (getEl('tm-country-override')?.value || '').trim().toUpperCase();
    const currencyOverride = (getEl('tm-currency-override')?.value || '').trim().toUpperCase();
    if (promoOverride) {
      hint.textContent = `当前使用自定义/覆盖：country=${countryOverride || cfg.country}，currency=${currencyOverride || cfg.currency}，promo_code=${promoOverride}`;
    } else {
      hint.textContent = `当前匹配：country=${cfg.country}，currency=${cfg.currency}，promo_code=${cfg.promoCode}`;
    }
  }

  function applyCustomPromo() {
    const code = (getEl('tm-custom-promo')?.value || '').trim();
    if (!code) {
      setStatus('请先填写自定义优惠码。', 'warn');
      return;
    }

    const selectedCode = getEl('tm-coupon-select')?.value || COUPONS[0].promoCode;
    const cfg = getCouponByCode(selectedCode);
    const country = (getEl('tm-custom-country')?.value || cfg.country || '').trim().toUpperCase();
    const currency = (getEl('tm-custom-currency')?.value || cfg.currency || '').trim().toUpperCase();

    const promoOverride = getEl('tm-promo-override');
    const countryOverride = getEl('tm-country-override');
    const currencyOverride = getEl('tm-currency-override');

    if (promoOverride) promoOverride.value = code;
    if (countryOverride) countryOverride.value = country;
    if (currencyOverride) currencyOverride.value = currency;

    refreshCouponHint();
    setStatus(`已应用自定义优惠码：${code}，国家/币种：${country}/${currency}。现在点击“生成长链接”即可。`, 'ok');
  }

  function enablePanelDrag(panel, handle) {
    if (!panel || !handle || panel.dataset.dragBound === '1') return;
    panel.dataset.dragBound = '1';

    let dragging = false;
    let startX = 0;
    let startY = 0;
    let startLeft = 0;
    let startTop = 0;

    handle.addEventListener('mousedown', (event) => {
      if (event.target.closest('button,input,textarea,select,summary')) return;
      dragging = true;
      state.dragged = true;
      const rect = panel.getBoundingClientRect();
      startX = event.clientX;
      startY = event.clientY;
      startLeft = rect.left;
      startTop = rect.top;
      panel.style.transform = 'none';
      document.body.style.userSelect = 'none';
      event.preventDefault();
    });

    window.addEventListener('mousemove', (event) => {
      if (!dragging) return;
      const rect = panel.getBoundingClientRect();
      let left = startLeft + event.clientX - startX;
      let top = startTop + event.clientY - startY;
      left = Math.max(8, Math.min(left, window.innerWidth - rect.width - 8));
      top = Math.max(8, Math.min(top, window.innerHeight - rect.height - 8));
      panel.style.left = `${left}px`;
      panel.style.top = `${top}px`;
    });

    window.addEventListener('mouseup', () => {
      if (!dragging) return;
      dragging = false;
      document.body.style.userSelect = '';
    });
  }

  function normalizeToken(raw) {
    return String(raw || '')
      .trim()
      .replace(/^Bearer\s+/i, '')
      .replace(/^['"]|['"]$/g, '')
      .trim();
  }

  function extractAccessTokenFromManualInput(input) {
    const text = String(input || '').trim();
    if (!text) throw new Error('手动模式已开启，但没有填写 Session JSON 或 accessToken。');

    try {
      const obj = JSON.parse(text);
      const token = normalizeToken(obj?.accessToken || obj?.token || obj?.session?.accessToken);
      if (token) return token;
    } catch (_) {
      // 不是标准 JSON 时，继续尝试正则或纯 token。
    }

    const match = text.match(/["']accessToken["']\s*:\s*["']([^"']+)["']/);
    if (match?.[1]) return normalizeToken(match[1]);

    const direct = normalizeToken(text);
    if (direct.length > 20) return direct;

    throw new Error('无法从手动内容里解析 accessToken，请粘贴完整 JSON 或纯 accessToken。');
  }

  async function getAutoAccessToken() {
    const resp = await window.fetch(SESSION_URL, {
      method: 'GET',
      credentials: 'include',
      headers: { Accept: 'application/json' },
    });
    const text = await resp.text();
    let data;
    try {
      data = JSON.parse(text);
    } catch (_) {
      throw new Error(`Session 响应不是 JSON，HTTP ${resp.status}`);
    }
    if (!resp.ok) {
      throw new Error(`获取 Session 失败，HTTP ${resp.status}：${JSON.stringify(data).slice(0, 300)}`);
    }
    const token = normalizeToken(data?.accessToken);
    if (!token) throw new Error('Session 里没有 accessToken，请确认已经登录 ChatGPT。');
    return { token, data };
  }

  async function getAccessToken() {
    const mode = getEl('tm-token-mode')?.value || 'auto';
    if (mode === 'manual') {
      const token = extractAccessTokenFromManualInput(getEl('tm-manual-session')?.value || '');
      return { token, data: null, source: 'manual' };
    }
    const { token, data } = await getAutoAccessToken();
    return { token, data, source: 'auto' };
  }

  async function fillSessionManually() {
    const btn = getEl('tm-fill-session');
    try {
      if (btn) btn.disabled = true;
      setStatus('正在读取 /api/auth/session ...');
      const { data } = await getAutoAccessToken();
      const ta = getEl('tm-manual-session');
      const mode = getEl('tm-token-mode');
      if (ta) ta.value = JSON.stringify(data, null, 2);
      if (mode) mode.value = 'manual';
      setStatus('已自动读取并填入 Session JSON，当前已切换为手动模式。', 'ok');
    } catch (err) {
      setStatus(`读取 Session 失败：${err.message}`, 'err');
    } finally {
      if (btn) btn.disabled = false;
    }
  }

  function buildPayload() {
    const selectedCode = getEl('tm-coupon-select')?.value || COUPONS[0].promoCode;
    const cfg = getCouponByCode(selectedCode);

    const workspaceName = (getEl('tm-workspace')?.value || 'MyTeam').trim() || 'MyTeam';
    const seatsRaw = Number.parseInt(getEl('tm-seats')?.value || '2', 10);
    const seatQuantity = Math.max(2, Number.isFinite(seatsRaw) ? seatsRaw : 2);
    const priceInterval = getEl('tm-interval')?.value === 'year' ? 'year' : 'month';
    const planName = (getEl('tm-plan')?.value || 'chatgptteamplan').trim() || 'chatgptteamplan';

    const promoOverride = (getEl('tm-promo-override')?.value || '').trim();
    const countryOverride = (getEl('tm-country-override')?.value || '').trim().toUpperCase();
    const currencyOverride = (getEl('tm-currency-override')?.value || '').trim().toUpperCase();

    const promoCode = promoOverride || cfg.promoCode;
    const country = countryOverride || cfg.country;
    const currency = currencyOverride || cfg.currency;

    const payload = {
      plan_name: planName,
      team_plan_data: {
        workspace_name: workspaceName,
        price_interval: priceInterval,
        seat_quantity: seatQuantity,
      },
      billing_details: {
        country,
        currency,
      },
      cancel_url: `https://chatgpt.com/?promoCode=${encodeURIComponent(promoCode)}`,
      promo_code: promoCode,
      checkout_ui_mode: 'hosted',
    };

    return { payload, cfg, promoCode, country, currency };
  }

  async function generateLink() {
    const btn = getEl('tm-generate');
    const output = getEl('tm-output');
    try {
      if (btn) btn.disabled = true;
      if (output) output.value = '';
      setStatus('正在准备 payload 并获取 accessToken ...');

      const { payload, promoCode, country, currency } = buildPayload();
      const { token, source } = await getAccessToken();

      setStatus(`Token 来源：${source === 'manual' ? '手动填入' : '自动获取'}。正在请求 Stripe hosted checkout 长链接 ...`);

      const resp = await window.fetch(CHECKOUT_URL, {
        method: 'POST',
        credentials: 'include',
        headers: {
          Authorization: `Bearer ${token}`,
          'Content-Type': 'application/json',
          Accept: 'application/json',
        },
        body: JSON.stringify(payload),
      });

      const text = await resp.text();
      let data;
      try {
        data = JSON.parse(text);
      } catch (_) {
        throw new Error(`checkout 响应不是 JSON，HTTP ${resp.status}：${text.slice(0, 300)}`);
      }

      state.lastData = data;
      state.lastPayload = payload;

      if (!resp.ok) {
        const detail = data?.detail || data?.message || data?.error || JSON.stringify(data).slice(0, 600);
        throw new Error(`请求失败，HTTP ${resp.status}：${detail}`);
      }

      const hostedUrl = data?.url || data?.stripe_hosted_url || data?.checkout_url;
      if (!hostedUrl) {
        if (output) output.value = JSON.stringify(data, null, 2);
        setStatus('请求成功，但没有找到 url / stripe_hosted_url / checkout_url。已把原始响应输出到结果框。', 'warn');
        return;
      }

      state.lastUrl = hostedUrl;
      if (output) output.value = hostedUrl;

      const sessionId = data?.checkout_session_id || data?.id || '未知';
      setStatus(
        `生成成功！\n优惠码：${promoCode}\n国家/币种：${country}/${currency}\n席位：${payload.team_plan_data.seat_quantity}\n周期：${payload.team_plan_data.price_interval}\nCheckout Session：${sessionId}`,
        'ok'
      );
    } catch (err) {
      console.error('[team-link] 生成失败：', err);
      setStatus(`生成失败：${err.message}`, 'err');
    } finally {
      if (btn) btn.disabled = false;
    }
  }

  async function copyResult() {
    const value = (getEl('tm-output')?.value || state.lastUrl || '').trim();
    if (!value) {
      setStatus('没有可复制的结果，请先生成长链接。', 'warn');
      return;
    }
    try {
      if (typeof GM_setClipboard === 'function') {
        GM_setClipboard(value);
      } else if (navigator.clipboard?.writeText) {
        await navigator.clipboard.writeText(value);
      } else {
        const ta = getEl('tm-output');
        ta?.focus();
        ta?.select();
        document.execCommand('copy');
      }
      setStatus('已复制结果到剪贴板。', 'ok');
    } catch (err) {
      setStatus(`复制失败：${err.message}`, 'err');
    }
  }

  function openResult() {
    const value = (getEl('tm-output')?.value || state.lastUrl || '').trim();
    if (!value || !/^https?:\/\//i.test(value)) {
      setStatus('没有可打开的长链接，请先生成。', 'warn');
      return;
    }
    window.open(value, '_blank', 'noopener,noreferrer');
  }

  function clearResult() {
    state.lastUrl = '';
    state.lastData = null;
    state.lastPayload = null;
    const output = getEl('tm-output');
    if (output) output.value = '';
    setStatus('已清空输出结果。');
  }

  function boot() {
    waitForBody(() => {
      ensureUi();

      const observer = new MutationObserver(() => {
        if (!getEl(LAUNCHER_ID) || !getEl(PANEL_ID)) {
          ensureUi();
        }
      });
      observer.observe(document.body, { childList: true, subtree: true });
    });
  }

  window.addEventListener('resize', () => {
    const panel = getEl(PANEL_ID);
    if (!panel || panel.style.display === 'none') return;
    if (state.dragged) clampPanelIntoView();
    else centerPanel();
  });

  window.addEventListener('keydown', (event) => {
    if (event.key === 'Escape') hidePanel();
  });

  boot();
})();