(function(){
  'use strict';
  if (window.__kefuEntryLoaded) return;
  window.__kefuEntryLoaded = true;

  var CFG_URL = "https://tzqk.cc/plugin/Kefu/Api/entryConfig";
  var CHAT_URL = "https://tzqk.cc/plugin/Kefu/Chat/chat";

  var shopId = 0;
  var shopToken = '';
  var enabled = false;
  var btn = null;
  var frozenSide = '';
  var frozenTop = 0;
  var lastShopArg = '';
  var retries = 0;
  var pollTimer = null;
  var styleInjected = false;
  var boundSb = null;
  var rafPending = false;

  if (location.pathname.indexOf('/Kefu/Chat/chat') !== -1) return;

  function isMobile(){
    var w = window.innerWidth || document.documentElement.clientWidth || 0;
    return w > 0 && w < 768;
  }

  /* ============ 店铺身份探测（package/shop|shop-h5、mobile、h5 全场景） ============
     探测面覆盖：query、#/shop/xx 哈希路由、短自定义后缀（如 /shop/MZY）、
     页面 <script src> 上的平台身份参数（shopApi token、merchant_id/uid）、
     window.shopInfo、__INITIAL_STATE__ 等；任一项漏探都会因 arg 为空导致按钮不渲染。 */
  var SHOP_GLOBAL_KEYS = ['shopInfo', 'shop', '__shop', '__SHOP__', 'storeInfo', 'store', '__store__'];

  // 路径段里常见的非店铺后缀保留字，防止把 /shop/list、/shop/h5 误判为自定义后缀
  var SHOP_PATH_RESERVED = {
    shop:1, shops:1, store:1, stores:1, list:1, detail:1, index:1, home:1,
    h5:1, mobile:1, m:1, goods:1, good:1, product:1, products:1, item:1,
    order:1, orders:1, cart:1, user:1, users:1, login:1, logout:1,
    register:1, api:1, package:1, page:1, pages:1, category:1, categories:1,
    search:1, pay:1, callback:1, notify:1, id:1, code:1, about:1, help:1,
    center:1, member:1, static:1, assets:1, plugin:1, view:1, html:1
  };

  function shopGlobalCandidates(){
    var cands = [];
    try {
      for (var i = 0; i < SHOP_GLOBAL_KEYS.length; i++) {
        if (window[SHOP_GLOBAL_KEYS[i]]) cands.push(window[SHOP_GLOBAL_KEYS[i]]);
      }
      if (window.__INITIAL_STATE__) {
        var st = window.__INITIAL_STATE__;
        cands.push(st.shopInfo, st.shop, st.storeInfo, st.store, st.userInfo, st.merchantInfo);
      }
    } catch (e) {}
    return cands;
  }

  /* 页面 <script src> 兜底：部分 SPA（如 shop-h5）店铺数据封在闭包内，
     window 无任何全局变量，但平台/其他插件脚本 URL 自带身份参数，
     实测页面有 buyerBlackJs?token=MZY（自定义后缀）、xxx?merchant_id=60、xxx?uid=60。 */
  function detectFromScripts(){
    var out = { id: 0, token: '' };
    try {
      var srcs = document.scripts;
      for (var i = 0; i < srcs.length; i++) {
        var u = srcs[i].src || '';
        if (!u) continue;
        if (!out.id) {
          var mi = u.match(/[?&](?:merchant_id|merchantId|uid|user_id|shop_id|shopId)=(\d+)/);
          if (mi) out.id = parseInt(mi[1], 10) || 0;
        }
        if (!out.token) {
          // 仅信任平台 shopApi 脚本上的 token（即商家自定义后缀），避免误取第三方票据
          var mt = u.match(/\/shopApi\/[A-Za-z0-9_\/-]*[?&]token=([A-Za-z0-9_-]{2,32})/);
          if (mt && !/^\d+$/.test(mt[1])) out.token = decodeURIComponent(mt[1]);
        }
        if (out.id && out.token) break;
      }
    } catch (e) {}
    return out;
  }

  function detectShopId(){
    try {
      function pickQs(qs){
        if (!qs) return 0;
        var m = qs.match(/[?&#](?:id|shop_id|shopId|shop|merchant_id|merchant|user_id|sid)=(\d+)/);
        return m ? (parseInt(m[1], 10) || 0) : 0;
      }
      var hash = location.hash || '';
      var hashQs = hash.indexOf('?') >= 0 ? hash.slice(hash.indexOf('?')) : hash;
      var id = pickQs(location.search) || pickQs(hashQs);
      if (id) return id;
      // 路径及 hash 路由（#/shop/123）里的数字店铺 ID
      var tail = location.pathname + ' ' + hash;
      var pm = tail.match(/\/(?:shop|shop-h5|store|shops|s)\/id\/(\d+)/i)
            || tail.match(/\/(?:shop|shop-h5|store|shops|s)\/(\d+)(?![\w-])/i);
      if (pm) return parseInt(pm[1], 10) || 0;
      var el = document.querySelector('meta[name="shop-id"],meta[name="merchant-id"]');
      if (el) return parseInt(el.getAttribute('content') || '', 10) || 0;
      // 页面脚本 URL 上的 merchant_id / uid（SPA 无全局变量时的平台官方信号）
      var fromScripts = detectFromScripts();
      if (fromScripts.id) return fromScripts.id;
      // 页面全局对象：不同模板字段名不同（id/user_id/shop_id/uid/merchant_id/sid）
      var cands = shopGlobalCandidates();
      for (var i = 0; i < cands.length; i++) {
        var o = cands[i];
        if (o && typeof o === 'object') {
          var v = parseInt(o.id || o.user_id || o.shop_id || o.uid || o.merchant_id || o.sid, 10);
          if (v > 0) return v;
        }
      }
    } catch (e) {}
    return 0;
  }

  function detectShopToken(){
    try {
      function pickQs(qs){
        if (!qs) return '';
        var m = qs.match(/[?&#](?:shop_token|token|link_code|shop_code)=([A-Za-z0-9_-]{2,32})/);
        return m ? decodeURIComponent(m[1]) : '';
      }
      var hash = location.hash || '';
      var hashQs = hash.indexOf('?') >= 0 ? hash.slice(hash.indexOf('?')) : hash;
      var t = pickQs(location.search) || pickQs(hashQs);
      if (t) return t;
      // 路径/hash 路由里的 /shop/编码（纯数字交给 detectShopId）
      var tail = location.pathname + ' ' + hash;
      var pm = tail.match(/\/(?:shop|shop-h5|store|shops|s)\/([A-Za-z0-9_-]{2,32})(?![A-Za-z0-9_-])/i);
      if (pm && !/^\d+$/.test(pm[1]) && !SHOP_PATH_RESERVED.hasOwnProperty(pm[1].toLowerCase())) {
        return pm[1];
      }
      // 平台 shopApi 脚本 URL 上的 token=自定义后缀
      var fromScripts = detectFromScripts();
      if (fromScripts.token) return fromScripts.token;
      // 页面全局对象里的 token 字段
      var cands = shopGlobalCandidates();
      for (var i = 0; i < cands.length; i++) {
        var o = cands[i];
        if (o && typeof o === 'object') {
          var v = String(o.token || o.shop_token || o.link_code || o.shop_code || '').trim();
          if (/^[A-Za-z0-9_-]{2,32}$/.test(v) && !/^\d+$/.test(v)) return v;
        }
      }
    } catch (e) {}
    return '';
  }

  function shopArg(){
    return shopToken || (shopId > 0 ? String(shopId) : '');
  }

  function chatHref(){
    var sep = CHAT_URL.indexOf('?') !== -1 ? '&' : '?';
    return CHAT_URL + sep + 'shop=' + encodeURIComponent(shopArg());
  }

  /* ============ 样式（id 命名空间隔离，尺寸/皮肤与 929 悬浮侧边栏逐项对齐） ============ */
  var CSS = [
    '#kefu-entry-btn{position:fixed;z-index:2147479999;margin:0;text-decoration:none;cursor:pointer;',
    'display:flex;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent;',
    'font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;',
    'transition:transform .42s cubic-bezier(.22,1,.36,1),opacity .42s;will-change:transform;}',
    '#kefu-entry-btn,#kefu-entry-btn *{box-sizing:border-box;}',
    /* PC：与 .sb929-pc 同宽 62、同外圆角 20、同毛玻璃底/描边/阴影；图标 38 与 .sb-ico 一致 */
    '#kefu-entry-btn.ke-pc{flex-direction:column;align-items:center;gap:8px;width:62px;padding:12px 9px 13px;',
    'background:rgba(255,255,255,.78);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);',
    'border:1px solid rgba(255,255,255,.85);box-shadow:0 12px 36px rgba(28,38,88,.16);overflow:hidden;}',
    '#kefu-entry-btn.ke-pc.ke-left{left:0;border-left:0;border-radius:0 20px 20px 0;}',
    '#kefu-entry-btn.ke-pc.ke-right{right:0;border-right:0;border-radius:20px 0 0 20px;}',
    '#kefu-entry-btn .ke-ico{width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;',
    'color:#fff;background:linear-gradient(135deg,#f5933c,#f45853);box-shadow:0 5px 12px rgba(40,50,100,.22);flex:none;}',
    '#kefu-entry-btn .ke-ico svg{width:20px;height:20px;display:block;}',
    /* PC 文字规格与 .sb929-pc .sb-txt 一致：13.5px/600/深色 */
    '#kefu-entry-btn .ke-txt{font-size:13.5px;font-weight:600;color:#343a52;white-space:nowrap;line-height:1.3;}',
    /* 手机：与 .sb929-m .sb-mbtn 同高 28、同 padding/描边/圆角/阴影，宽度随文字 */
    '#kefu-entry-btn.ke-m{flex-direction:row;align-items:center;height:28px;padding:0 8px;',
    'color:#fff;font-size:11px;font-weight:600;letter-spacing:.2px;line-height:1.3;white-space:nowrap;',
    'border:1px solid rgba(255,255,255,.2);text-shadow:0 1px 1px rgba(0,0,0,.12);',
    'background:linear-gradient(rgba(255,255,255,.24),rgba(255,255,255,.04) 42%,rgba(0,0,0,.03)),linear-gradient(135deg,#f5933c,#f45853);',
    'box-shadow:0 4px 10px rgba(15,23,42,.12);}',
    '#kefu-entry-btn.ke-m.ke-left{left:0;border-left:0;border-radius:0 6px 6px 0;}',
    '#kefu-entry-btn.ke-m.ke-right{right:0;border-right:0;border-radius:6px 0 0 6px;}',
    '#kefu-entry-btn.ke-m .ke-ico{display:none;}',
    /* 手机文字规格与 .sb929-m .sb-mbtn 一致：11px/600/白字/.2px 字距 */
    '#kefu-entry-btn.ke-m .ke-txt{font-size:11px;font-weight:600;color:#fff;letter-spacing:.2px;line-height:1.3;}',
    '#kefu-entry-btn:active{opacity:.88;}',
    /* 跟随侧边栏收起 / 下滑隐藏：同向同距滑出（与 .sb-folded/.sb-slidehide 动画一致） */
    '#kefu-entry-btn.ke-hide-left{transform:translateX(-125%);opacity:0;pointer-events:none;}',
    '#kefu-entry-btn.ke-hide-right{transform:translateX(125%);opacity:0;pointer-events:none;}'
  ].join('');

  var ICON_SVG = '<span class="ke-ico"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 11.5a8.38 8.38 0 0 1-.9 3.8 8.5 8.5 0 0 1-7.6 4.7 8.38 8.38 0 0 1-3.8-.9L3 21l1.9-5.7a8.38 8.38 0 0 1-.9-3.8 8.5 8.5 0 0 1 4.7-7.6 8.38 8.38 0 0 1 3.8-.9h.5a8.48 8.48 0 0 1 8 8v.5z"/></svg></span>';

  function injectStyle(){
    if (styleInjected) return;
    styleInjected = true;
    try {
      var st = document.createElement('style');
      st.id = 'kefu-entry-style';
      st.textContent = CSS;
      (document.head || document.documentElement).appendChild(st);
    } catch (e) { styleInjected = false; }
  }

  /* ============ 按钮构建 / 移除（防 SPA 被页面脚本误删） ============ */
  function buildBtn(){
    try {
      if (btn && btn.isConnected) return;
      var a = document.createElement('a');
      a.id = 'kefu-entry-btn';
      a.rel = 'noopener noreferrer';
      a.setAttribute('aria-label', '在线咨询');
      a.innerHTML = ICON_SVG + '<span class="ke-txt">在线咨询</span>';
      a.addEventListener('click', function (e) {
        var url = chatHref();
        if (isMobile()) {
          e.preventDefault();
          location.href = url;
        } else {
          e.preventDefault();
          window.open(url, '_blank', 'noopener');
        }
      });
      (document.body || document.documentElement).appendChild(a);
      btn = a;
      position();
    } catch (e) {}
  }

  function removeBtn(){
    if (btn && btn.parentNode) {
      try { btn.parentNode.removeChild(btn); } catch (e) {}
    }
    btn = null;
  }

  /* ============ 贴靠 929 悬浮侧边栏正下方 ============ */
  function sbRoot(){
    return document.getElementById('sb929-root');
  }

  function anchorEl(){
    var sb = sbRoot();
    if (!sb) return null;
    /* PC 锚 .sb929-pc；手机只锚展开态的 .sb929-m（收起态整个栏已滑出） */
    return sb.querySelector(isMobile() ? '.sb929-m' : '.sb929-pc');
  }

  /* 手机端侧边栏被用户手动收起（sb-folded）或下滑自动隐藏（sb-slidehide）时，
     买家入口必须与侧边栏同向滑出，展开时再滑回 */
  function sbHidden(sb){
    if (!sb || !isMobile()) return false;
    return sb.classList.contains('sb-folded') || sb.classList.contains('sb-slidehide');
  }

  function sbSideOf(sb){
    if (sb && sb.classList.contains('sb-side-left')) return 'left';
    if (sb && sb.classList.contains('sb-side-right')) return 'right';
    return '';
  }

  function offscreen(r){
    return r.bottom < -2 || r.top > window.innerHeight + 2
      || r.right < -2 || r.left > window.innerWidth + 2;
  }

  function position(){
    if (!btn) return;
    var mobile = isMobile();
    var side = '', top = 0, hidden = false;
    try {
      var sb = sbRoot();
      hidden = sbHidden(sb);
      var el = anchorEl();
      if (el && !hidden) {
        var r = el.getBoundingClientRect();
        if (r.width > 0 && r.height > 0 && !offscreen(r)) {
          side = sbSideOf(sb) || (r.left < (window.innerWidth - r.right) ? 'left' : 'right');
          top = r.bottom + (mobile ? 6 : 12);
          frozenSide = side;
          frozenTop = top;
        }
      }
      if (!side) {
        /* 收起中也要知道往哪边滑；优先用根节点侧别类，其次用冻结侧 */
        side = sbSideOf(sb) || frozenSide;
        if (top === 0) top = frozenTop;
      }
      if (!side) {
        side = 'right';
        top = mobile ? Math.round(window.innerHeight * 0.30) + 24 : 340;
      }
      if (top < 4) top = 4;
      var maxTop = window.innerHeight - 44;
      if (top > maxTop) top = maxTop > 4 ? maxTop : 4;
      btn.className = (mobile ? 'ke-m' : 'ke-pc') + ' ke-' + side
        + (hidden ? ' ke-hide-' + side : '');
      btn.style.top = Math.round(top) + 'px';
      btn.style.left = side === 'left' ? '0px' : '';
      btn.style.right = side === 'right' ? '0px' : '';
    } catch (e) {}
  }

  function schedule(){
    if (rafPending) return;
    rafPending = true;
    requestAnimationFrame(function () {
      rafPending = false;
      position();
    });
  }

  function bindAnchor(){
    try {
      var sb = document.getElementById('sb929-root');
      if (!sb || sb === boundSb) return;
      boundSb = sb;
      if (window.MutationObserver) {
        new MutationObserver(schedule).observe(sb, {
          attributes: true, childList: true, subtree: true,
          attributeFilter: ['class', 'style']
        });
      }
    } catch (e) {}
  }

  /* ============ 配置拉取（开关 / 封禁 / 店铺身份回填） ============ */
  function loadConfig(){
    if (!document.body) { setTimeout(loadConfig, 120); return; }
    if (!shopId) shopId = detectShopId();
    if (!shopToken) shopToken = detectShopToken();
    var url = CFG_URL + (CFG_URL.indexOf('?') !== -1 ? '&' : '?')
      + 'shop_id=' + shopId + '&shop_token=' + encodeURIComponent(shopToken);
    fetch(url, { credentials: 'same-origin', cache: 'no-store' })
      .then(function (r) { return r.json(); })
      .then(function (res) {
        retries = 0;
        var d = res && res.data;
        if (!d) return;
        if (d.shop_id) shopId = parseInt(d.shop_id, 10) || shopId;
        var arg = shopArg();
        if (arg !== lastShopArg) {
          lastShopArg = arg;
          frozenSide = '';
          frozenTop = 0;
          if (btn) { removeBtn(); }
        }
        enabled = (d.on === 1 || d.on === true) && !d.banned && !!arg;
        if (!enabled) {
          removeBtn();
          return;
        }
        injectStyle();
        buildBtn();
        bindAnchor();
        schedule();
      })
      .catch(function () {
        if (retries < 6) {
          retries++;
          setTimeout(loadConfig, 1200 * retries);
        }
      });
  }

  /* 全局事件：手机端滚动/地址栏收起、PC 窗口变化、SPA 换店 */
  try {
    window.addEventListener('resize', schedule);
    window.addEventListener('scroll', schedule, { passive: true });
    window.addEventListener('orientationchange', function () { setTimeout(schedule, 200); });
    if (window.MutationObserver) {
      new MutationObserver(function () {
        try {
          var sb = document.getElementById('sb929-root');
          if (sb && sb !== boundSb) bindAnchor();
          if (enabled && (!btn || !btn.isConnected)) buildBtn();
        } catch (e) {}
      }).observe(document.documentElement, { childList: true, subtree: true });
    }
  } catch (e) {}

  /* 轮询：手机拖动期间高频跟随 + 开关/店铺身份变更后自愈 */
  pollTimer = setInterval(function () {
    try {
      var sid = detectShopId(), tok = detectShopToken();
      if (sid !== shopId || tok !== shopToken) {
        shopId = sid; shopToken = tok;
        loadConfig();
        return;
      }
      if (enabled) {
        if (!btn || !btn.isConnected) buildBtn();
        else schedule();
      }
    } catch (e) {}
  }, 300);

  loadConfig();
})();