/* 兜爸心选 · 页面访问记录（2026-11-07）
   推送效果看板要看「推送打开后用户看了哪些页面」，用户同意做。后端 box_app：POST /api/mp/public/mama-box/pv（公开上报），
   看板走 POST /api/mp/public/mama-box/pageviews/query（X-Api-Key）。说明见 box_app services/mama_box_pageview_serv.py。

   一次「看一页」= 一个 visitId：进来 0.8 秒后报一条（停留 0），之后每 15 秒、切到后台、离开时报一次停留时长（只算页面在前台的时间）。
   同一页里换内容也算新的一页：广场切笔记 / 话题 / 分类（pushState）、首页开关星空页（replaceState ?wh=1）—— 这里接管 history 自动识别，页面不用改。
   首页 + 孕妈广场 + 测一测 + 专题页 / 计算器都引本文件（和 js/last-sub.js 放一起）；新子页面记得加 script。
   预览站 / 正式站由后端按路径分（/mama-box-preview/ → preview），这里不管。

   11-07 同时报一份给数胎动后台（taidong.douba.top/admin「当天用户 / 全部用户」看每人逛了哪些页，375797cf 接的，app_id=mama-box）：
   openid-login 拿令牌（存 sessionStorage）→ events/open 报一次进站（visit_id 同一会话共用，30 分钟没动静算新一次）
   → 每离开一页 / 切到后台报一条 events（path /mama-box/…、中文 title、这段前台停留）；每次离开页面再报一条不带 title 的
   「整次停留」（累计值，对方取最新）。只在有 openid、没退出登录时报；预览站不报（不混进正式数据）。 */
(function () {
  'use strict';
  if (window.__mbPV) return;
  window.__mbPV = 1;

  var API = '/api/mp/public/mama-box/pv';
  var BEAT = 15000;
  var CAT_NAME = { family: '家庭婚姻', work: '职场方向', baby: '孕育经验' };

  function param(k) {
    var m = ((location.hash || '') + '&' + (location.search || '')).match(new RegExp('[#?&]' + k + '=([^&]*)'));
    try { return m ? decodeURIComponent(m[1]).split('?')[0] : ''; } catch (e) { return ''; }
  }
  function who() {
    if (window.mbGate && window.mbGate.out) return { openid: '', unionid: '' };   /* 11-07 退出登录 = 访客 */
    var o = param('openid'), u = param('unionid');
    if (!o) {
      try {
        var c = JSON.parse(sessionStorage.getItem('mmbox.identity') || 'null');
        if (c && c.openid && (!c.at || Date.now() - c.at < 432e5)) { o = c.openid; u = u || c.unionid || ''; }
      } catch (e) {}
    }
    return { openid: o, unionid: u };
  }

  /* 当前地址 → 是哪一页。base = 站点根（/mama-box-v2/ 或 /mama-box-preview/），rel = 之后的部分 */
  function where() {
    var p = location.pathname.replace(/index\.html$/, '');
    var m = p.match(/^(\/[^/]+\/)(.*)$/) || [0, '/', ''];
    var rel = m[2], q = new URLSearchParams(location.search), r = { group: 'other', page: rel || 'home', title: document.title || '' };
    var T = function (v) { return String(v || '').replace(/\s*·\s*(测一测|孕妈广场)$/, ''); };
    if (!rel) {
      if (q.get('wh') === '1') { r.group = 'whisper'; r.page = 'whisper'; r.title = '孕妈悄悄话·星空页'; }
      else { r.group = 'home'; r.page = 'home'; r.title = '妈妈盒子首页'; }
    } else if (rel === 'guangchang/ceshi/') {
      var id = q.get('id') || '', t = (window.GC_TESTS || []).filter(function (x) { return x.id === id; })[0];
      r.group = 'ceshi'; r.page = id ? 'ceshi/test' : 'ceshi/list'; r.testId = id;
      r.testTitle = t ? t.title : (id ? T(document.title) : '');
      r.title = id ? '测一测·' + (r.testTitle || id) : '测一测·列表';
    } else if (rel === 'guangchang/mine/') {
      r.group = 'plaza'; r.page = 'plaza/mine'; r.title = '孕妈广场·我的投稿';
    } else if (rel === 'guangchang/') {
      var n = q.get('n') || '', tp = q.get('t') || '', c = q.get('c') || '';
      var tid = tp || (n ? n.replace(/-\d+$/, '') : '');
      var topic = (window.GC_TOPICS || []).filter(function (x) { return x.id === tid; })[0];
      r.group = 'plaza';
      if (tid) { r.topicId = tid; r.topicTitle = topic ? topic.name : ''; }
      if (n) {
        var d = window.GC_DATA && GC_DATA[tid], i = +(n.match(/-(\d+)$/) || [0, 0])[1];
        r.page = 'plaza/note'; r.noteId = n; r.noteTitle = d && d.notes && d.notes[i - 1] ? d.notes[i - 1].title : '';
        r.title = '孕妈广场·笔记详情';
      } else if (tp) { r.page = 'plaza/topic'; r.title = '孕妈广场·话题'; }
      else if (c === 'ceshi') { r.group = 'ceshi'; r.page = 'ceshi/list'; r.title = '测一测·列表'; }
      else if (c) { r.page = 'plaza/cat'; r.title = '孕妈广场·' + (CAT_NAME[c] || c); }
      else if (q.get('write') === '1') { r.page = 'plaza/write'; r.title = '孕妈广场·写笔记'; }
      else if (q.get('fav') === '1') { r.page = 'plaza/fav'; r.title = '孕妈广场·我的收藏'; }
      else if (q.get('mine') === '1') { r.page = 'plaza/mine'; r.title = '孕妈广场·我的投稿'; }
      else { r.page = 'plaza/home'; r.title = '孕妈广场'; }
    } else if (/^topic\/[a-z0-9_-]+\/$/.test(rel)) {
      r.group = 'topic'; r.page = rel.replace(/\/$/, ''); r.title = T(document.title) || r.page;
    }
    r.key = r.page + '|' + (r.noteId || '') + '|' + (r.topicId || '') + '|' + (r.testId || '');
    /* 净地址：不带身份（openid/unionid 在 hash，不记） */
    r.path = location.pathname + (location.search || '').replace(/([?&])(openid|unionid)=[^&]*/g, '$1').replace(/[?&]+$/, '');
    return r;
  }

  function send(o) {
    var s = JSON.stringify(o);
    try { if (navigator.sendBeacon && navigator.sendBeacon(API, new Blob([s], { type: 'text/plain' }))) return; } catch (e) {}
    try { fetch(API, { method: 'POST', body: s, keepalive: true, headers: { 'Content-Type': 'text/plain' } }).catch(function () {}); } catch (e) {}
  }
  function vid() { return Date.now().toString(36) + Math.random().toString(36).slice(2, 10) + Math.random().toString(36).slice(2, 6); }

  /* ---- 数胎动后台 ---- */
  var TD = '/taidong/api/', TD_ON = /^\/mama-box-v2\//.test(location.pathname) || (function () { try { return localStorage.getItem('mmbox.tdtest') === '1'; } catch (e) { return false; } })()   /* 预览自测：本机手动置 mmbox.tdtest=1 才报 */, TDK = 'mmbox.td.v1';
  function tdState() {
    var st = null;
    try { st = JSON.parse(sessionStorage.getItem(TDK) || 'null'); } catch (e) {}
    var now = Date.now();
    if (!st || now - (st.seen || 0) > 30 * 60000) st = { vid: 'mb-' + now + '-' + Math.random().toString(36).slice(2, 8), start: now, acc: 0, opened: 0, tok: st && st.tok, oid: st && st.oid };
    st.seen = now;
    return st;
  }
  function tdSave(st) { try { sessionStorage.setItem(TDK, JSON.stringify(st)); } catch (e) {} }
  var tdTok = null;
  function tdToken() {
    if (!TD_ON) return Promise.resolve('');
    var w = who();
    if (!w.openid) return Promise.resolve('');
    var st = tdState();
    if (st.tok && st.oid === w.openid) return Promise.resolve(st.tok);
    if (tdTok) return tdTok;
    tdTok = fetch(TD + 'auth/openid-login', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ app_id: 'mama-box', openid: w.openid, unionid: w.unionid || undefined }) })
      .then(function (r) { return r.json(); }).then(function (j) {
        var t = j && (j.token || (j.data && j.data.token)) || '';
        var s2 = tdState(); s2.tok = t; s2.oid = w.openid; tdSave(s2);
        return t;
      }).catch(function () { return ''; }).then(function (t) { tdTok = null; return t; });
    return tdTok;
  }
  function tdPost(path, body, tok) {
    if (!tok) return;
    try { fetch(TD + path, { method: 'POST', keepalive: true, headers: { 'Content-Type': 'application/json', Authorization: 'Bearer ' + tok }, body: JSON.stringify(body) }).catch(function () {}); } catch (e) {}
  }
  function tdTitle(r) {
    var t = r.page === 'home' ? '首页' : r.page === 'whisper' ? '孕妈悄悄话 · 星空页'
      : r.page === 'plaza/note' ? '帖子详情 · ' + (r.noteTitle || r.noteId)
      : r.page === 'plaza/topic' ? '话题 · ' + (r.topicTitle || r.topicId)
      : r.page === 'ceshi/test' ? '测一测 · ' + (r.testTitle || r.testId)
      : r.group === 'topic' ? '专题 · ' + r.title
      : String(r.title || '').replace('·', ' · ');
    return t.slice(0, 40);
  }
  function tdOpen() {
    tdToken().then(function (tok) {
      var st = tdState();
      if (!tok || st.opened) { tdSave(st); return; }
      st.opened = 1; tdSave(st);
      tdPost('events/open', { visit_id: st.vid, page: '/mama-box/', src: param('src') }, tok);
    });
  }
  /* 一段前台停留结束（离开这一页 / 切到后台）：报这一页 + 整次累计 */
  function tdSeg(c, ms, leaving) {
    if (!TD_ON || !c || ms < 300) return;
    var st = tdState(); st.acc += ms; tdSave(st);
    var r = c.full || c.r, path = '/mama-box/' + (r.page === 'home' ? '' : r.page === 'whisper' ? 'whisper' : location.pathname.replace(/^\/[^/]+\//, '').replace(/index\.html$/, '').replace(/\/$/, ''));
    var ev = { visit_id: st.vid, path: path.replace(/\/$/, '') || '/mama-box/', title: tdTitle(r), duration_ms: ms, entered_at: c.segAt };
    if (ev.path === '/mama-box') ev.path = '/mama-box/';
    var site = { visit_id: st.vid, path: '/mama-box/', duration_ms: st.acc };
    tdToken().then(function (tok) { tdPost('events', ev, tok); if (leaving) tdPost('events', site, tok); });
  }

  var cur = null, timer = 0;
  function dur() {
    if (!cur) return 0;
    return cur.acc + (cur.shownAt ? Date.now() - cur.shownAt : 0);
  }
  function beat() {
    if (!cur || !cur.sent) return;
    var d = dur();
    if (d - cur.lastDur < 1000) return;
    cur.lastDur = d;
    var w = who();
    send({ visitId: cur.id, durationMs: d, openid: w.openid, unionid: w.unionid });
  }
  function first(c) {
    if (c !== cur || c.sent) return;
    var r = where();   /* 晚 0.8 秒再取：专题页 / 测试页的标题、广场数据那时才就绪 */
    if (r.key !== c.r.key) r = c.r;
    var w = who();
    c.sent = true; c.full = r;
    send({
      visitId: c.id, openid: w.openid, unionid: w.unionid, page: r.page, pageGroup: r.group, pageTitle: r.title,
      noteId: r.noteId || '', noteTitle: r.noteTitle || '', topicId: r.topicId || '', topicTitle: r.topicTitle || '',
      testId: r.testId || '', testTitle: r.testTitle || '', path: c.r.path, enteredAt: c.at, durationMs: dur()
    });
  }
  function close() {
    if (!cur) return;
    if (cur.shownAt) tdSeg(cur, Date.now() - cur.segAt, true);
    if (cur.sent) beat(); else if (dur() >= 800) first(cur);
    cur = null;
  }
  function open() {
    var r = where();
    if (cur && cur.r.key === r.key) return;
    close();
    var c = cur = { id: vid(), r: r, at: Date.now(), segAt: Date.now(), acc: 0, shownAt: document.hidden ? 0 : Date.now(), sent: false, lastDur: 0 };
    setTimeout(function () { first(c); }, 800);
  }

  ['pushState', 'replaceState'].forEach(function (k) {
    var f = history[k];
    if (typeof f !== 'function') return;
    history[k] = function () { var x = f.apply(this, arguments); try { setTimeout(open, 0); } catch (e) {} return x; };
  });
  window.addEventListener('popstate', function () { setTimeout(open, 0); });
  document.addEventListener('visibilitychange', function () {
    if (!cur) return;
    if (document.hidden) { if (cur.shownAt) { cur.acc += Date.now() - cur.shownAt; tdSeg(cur, Date.now() - cur.segAt, true); cur.shownAt = 0; } beat(); }
    else if (!cur.shownAt) { cur.shownAt = cur.segAt = Date.now(); tdOpen(); }
  });
  window.addEventListener('pagehide', close);
  window.addEventListener('pageshow', function (e) { if (e.persisted) open(); });   /* 从后退缓存回来 = 又看一次 */
  timer = setInterval(function () { if (!document.hidden) beat(); }, BEAT);

  open();
  if (TD_ON) tdOpen();
})();