/* dwy_access.js — WR-530 (2026-10-14)  用户前端统一「功能卡片门禁 / 订阅引导」+ API 免 CDN 脏读
 * 1) window.dwyPayGuide(item)       —— 卡片未解锁时的统一引导（需订阅 / 需登录 / 免费体验额度用尽）
 * 2) window.dwyGateCheck(key, cb)   —— 操作台派发前门禁预检（授权 OR 订阅/充值额度）
 * 3) fetch 补丁                     —— 给 api-gateway 的 GET 请求补 `_t` 时间戳
 *                                      规避 CDN 360s 缓存导致的「改了页面没变化 / 数据不刷新」脏读
 * 单文件、无第三方依赖；在 HTML 里删除引用本文件的 <script> 一行即可整体回滚。
 * 真值口径在服务端：src/api/routes/user_settings_routes.py(/api/user-settings/card-gate,gate-check)
 *                  + api-gateway.py(/user/modules/authorized, /user/gate/check)
 */
(function () {
  'use strict';
  if (window.__dwyAccess) return;
  window.__dwyAccess = true;
  var SUB = 'https://ai.duoweiying.cn/subscribe';
  var GW = 'api-gateway.duoweiying.cn';

  function uid() {
    try {
      if (typeof window.__dwyUid === 'function') { var v = window.__dwyUid(); if (v) return v; }
    } catch (e) {}
    try {
      var u = JSON.parse(localStorage.getItem('user_info') || localStorage.getItem('currentUser') || '{}');
      if (u && (u.id || u.username)) return u.id || u.username;
    } catch (e) {}
    return localStorage.getItem('user_id') || 'anonymous';
  }
  window.dwyUid = uid;

  function esc(s) {
    return String(s == null ? '' : s).replace(/[&<>"']/g, function (c) {
      return { '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[c];
    });
  }

  /* ---------- 0) 卡片角标样式（与 v11/v18 市场行共用） ---------- */
  try {
    if (!document.getElementById('dwyAccessCss')) {
      var _st = document.createElement('style');
      _st.id = 'dwyAccessCss';
      _st.textContent = '.mob-app-row .bdg{font-size:10px;line-height:1.5;color:#b45309;background:#fef3c7;border-radius:8px;padding:1px 6px;margin-left:6px;flex:none;white-space:nowrap}' +
                        '.mob-app-row.locked{opacity:.6}';
      (document.head || document.documentElement).appendChild(_st);
    }
  } catch (e) {}

  /* ---------- 1) 统一「订阅/权限」引导 ---------- */
  window.dwyPayGuide = function (item) {
    item = item || {};
    var name = item.name || item.id || '该功能';
    try { var old = document.getElementById('dwyPayGuide'); if (old) old.remove(); } catch (e) {}
    var steps = [];
    if (item.need_login) {
      steps.push('该功能需要先登录：登录后会自动识别你的账号与剩余额度。');
    } else {
      steps.push('免费体验额度用完后，订阅套餐或充值余额即可继续使用。');
      steps.push('费用按实际算力消耗从余额/订阅额度扣，余额与账单可在「我的 → 账号资源」随时查。');
    }
    if (item.trial_remaining !== null && item.trial_remaining !== undefined) {
      steps.push('当前剩余体验次数：' + item.trial_remaining + ' 次');
    }
    if (item.hint) steps.push(item.hint);
    var box = document.createElement('div');
    box.id = 'dwyPayGuide';
    box.style.cssText = 'position:fixed;inset:0;z-index:60000;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;padding:18px;';
    box.innerHTML =
      '<div style="background:#fff;border-radius:16px;max-width:430px;width:100%;padding:20px;box-shadow:0 18px 50px rgba(0,0,0,.28);">' +
      '<div style="display:flex;justify-content:space-between;align-items:flex-start;gap:10px;">' +
      '<div style="font-size:17px;font-weight:700;color:#0f172a;">\uD83D\uDD12 ' + esc(name) + '</div>' +
      '<button id="dwyPayX" style="border:none;background:none;font-size:22px;color:#94a3b8;cursor:pointer;line-height:1;">\u00d7</button></div>' +
      '<div style="font-size:13px;color:#475569;line-height:1.85;margin-top:10px;">' +
      steps.map(function (s) { return '\u00b7 ' + esc(s); }).join('<br/>') + '</div>' +
      '<div style="display:flex;gap:8px;margin-top:16px;">' +
      '<button id="dwyPayGo" style="flex:1;padding:12px;border:none;border-radius:10px;background:#e11d48;color:#fff;font-size:15px;font-weight:600;cursor:pointer;">\uD83D\uDC8E 去订阅 / 充值</button>' +
      '<button id="dwyPayNo" style="flex:none;padding:12px 16px;border:1px solid #e2e8f0;border-radius:10px;background:#fff;color:#334155;font-size:14px;cursor:pointer;">稍后</button></div></div>';
    document.body.appendChild(box);
    function close() { try { box.remove(); } catch (e) {} }
    box.addEventListener('click', function (e) { if (e.target === box) close(); });
    var x = box.querySelector('#dwyPayX'); if (x) x.onclick = close;
    var no = box.querySelector('#dwyPayNo'); if (no) no.onclick = close;
    var go = box.querySelector('#dwyPayGo');
    if (go) go.onclick = function () { try { window.open(SUB, '_blank'); } catch (e) { location.href = SUB; } close(); };
    return box;
  };

  /* ---------- 2) 操作台派发前门禁预检 ---------- */
  window.dwyGateCheck = function (key, cb) {
    var done = false;
    function fin(ok, item) { if (done) return; done = true; try { cb(!!ok, item || {}); } catch (e) {} }
    try {
      var url = 'https://' + GW + '/user/gate/check?user_id=' + encodeURIComponent(uid()) +
                '&card_id=' + encodeURIComponent(String(key || '')) + '&_t=' + Date.now();
      fetch(url).then(function (r) { return r.json().catch(function () { return {}; }); })
        .then(function (d) {
          d = d || {};
          if (d.allowed === false) { window.dwyPayGuide(d); fin(false, d); }
          else { fin(true, d); }
        })
        .catch(function () { fin(true, {}); });   // 门禁不可用 -> 放行, 服务端 gen_gate 兜底
    } catch (e) { fin(true, {}); }
  };

  /* ---------- 3) 免 CDN 脏读：api-gateway 的 GET 补 _t ---------- */
  try {
    var _f = window.fetch;
    if (typeof _f === 'function' && !_f.__dwyPatched) {
      var patched = function (input, init) {
        try {
          var method = ((init && init.method) || 'GET').toUpperCase();
          if (method === 'GET' && typeof input === 'string' &&
              input.indexOf(GW) >= 0 && input.indexOf('_t=') < 0) {
            input = input + (input.indexOf('?') < 0 ? '?' : '&') + '_t=' +
                    Date.now() + Math.floor(Math.random() * 1000);
          }
        } catch (e) {}
        return _f.call(this, input, init);
      };
      patched.__dwyPatched = true;
      window.fetch = patched;
    }
  } catch (e) {}

  console.log('[dwyAccess] WR-530 卡片门禁/订阅引导 + API 免缓存就绪');
})();