/* 星空页 · 妈妈们的留言（2026-11-07）
   · 二改（用户：「往下滑评论就挡住整个背景，不好；改成点『全部』那种半弹窗，最多拉到 2/3，一定留出一块星空；
     首页要有个明显入口，别只放右上角『全部』」）：
     「说一句」按钮下面一条入口 → 半屏面板（先开到半屏，拖把手 / 往上划能拉到 2/3，再往上就不动了；往下拖关掉）。
     面板里自己滚动看全部留言。右上角「全部」也打开这个面板（原来那个只列悄悄话的抽屉不用了）。
   · 数据：广场置顶笔记 wh-<话题 from> 的评论 = cm.json 模拟（AGENTS.md 12c，不得挂星）+ /plaza/comments 已审核通过的真实评论
     + 我自己发的（含审核中）。打开星空页才拉 cm.json（版本号跟广场 index.html 引的一致，共用缓存）。
   · 真实留言的赞走服务端（POST /plaza/comment/like，每人每条一次、不能赞自己），赞够 starLikes（后台可改，先 3）自动挂星；
     模拟留言的赞只记本机 mmbox.whcm.v1。最热 / 最新 / 同孕周 三种看法。
   · 三改（用户：「我不能给别人的留言回复」）：点留言上的「回复」→ 底部输入框回复那一楼（先审后发）；
     底部输入框不点「回复」时就是发一条新留言。楼的 key 同广场：模拟 = wh-xxx#序号，真实 = r:<id>。
   · 星空页「说一句」发的话也进这里（window.MBWhCm.post，app.js 调）。 */
(function () {
  var page = document.getElementById('whPage'), bar = page && page.querySelector('.whp-bar');
  if (!page || !bar || !window.MB_WH_THEME) return;
  var TH = MB_WH_THEME(), PID = 'wh-' + TH.from.replace(/-/g, '');
  var esc = function (s) { return String(s == null ? '' : s).replace(/[&<>"']/g, function (c) { return { '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[c]; }); };
  var m = ((location.hash || '') + '&').match(/[#&]openid=([^&]*)/), OID = m ? decodeURIComponent(m[1]) : '';
  var HEART = '<svg viewBox="0 0 24 24"><path d="M12 20.5s-7.5-4.6-7.5-10.2A4.3 4.3 0 0112 7.6a4.3 4.3 0 017.5 2.7c0 5.6-7.5 10.2-7.5 10.2z"/></svg>';

  /* 入口：「说一句」下面一条，带几个头像 + 条数，看得出能点 */
  var go = document.createElement('button');
  go.type = 'button'; go.className = 'wcm-go'; go.id = 'wcmGo';
  go.innerHTML = '<span class="wcm-go-av" id="wcmGoAv"></span><span class="wcm-go-t">看看大家说了啥<em id="wcmGoN"></em></span><i class="wcm-go-up" aria-hidden="true"></i>';
  bar.appendChild(go);

  /* 半屏面板 */
  var sh = document.createElement('div');
  sh.className = 'wcs'; sh.id = 'wcs'; sh.setAttribute('aria-hidden', 'true');
  sh.innerHTML = '<div class="wcs-p" role="dialog" aria-label="妈妈们的留言">' +
    '<div class="wcs-hd"><i class="wcs-grab" aria-hidden="true"></i><div class="wcs-tt"><b>妈妈们的留言</b><span id="wcmN"></span>' +
    '<button type="button" class="wcs-x" aria-label="收起"><svg viewBox="0 0 24 24" width="14" height="14"><path d="M6 6l12 12M18 6L6 18" stroke="currentColor" stroke-width="2.4" stroke-linecap="round"/></svg></button></div>' +
    '<div class="wcm-tb" role="tablist"><button type="button" class="on" data-wso="hot">最热</button><button type="button" data-wso="new">最新</button><button type="button" data-wso="wk">同孕周</button>' +
    '<span class="wcm-rule" id="wcmRule"></span></div></div>' +
    '<div class="wcs-ls" id="wcsLs"><div id="wcmLs"><p class="wcm-e">留言加载中…</p></div><button type="button" class="wcm-more" id="wcmMore" hidden>再看看</button></div>' +
    '<div class="wcs-in"><span class="wcs-to" id="wcsTo" hidden></span><input id="wcsIn" type="text" maxlength="200" enterkeyhint="send" placeholder="说点什么…"><button type="button" id="wcsSend">发送</button></div>' +
    '</div>';
  page.appendChild(sh);
  var P = sh.querySelector('.wcs-p'), lsBox = sh.querySelector('#wcsLs'), ls = sh.querySelector('#wcmLs'), more = sh.querySelector('#wcmMore');
  var inp = sh.querySelector('#wcsIn'), toEl = sh.querySelector('#wcsTo'), sendB = sh.querySelector('#wcsSend');

  var LK = 'mmbox.whcm.v1', LIKE = {};
  try { LIKE = JSON.parse(localStorage.getItem(LK) || '{}') || {}; } catch (e) {}
  var avP = function (a) { return typeof a === 'number' ? 'guangchang/av/' + ('000' + a).slice(-4) + '.webp' : a.indexOf('av:') === 0 ? 'guangchang/av/' + a.slice(3) + '.webp' : a.charAt(0) === '/' ? a : 'assets/img/mom/' + a + '.jpg'; };
  var fmt = function (n) { return n >= 10000 ? (n / 10000).toFixed(1) + 'w' : String(n); };
  var ago = function (ts) {
    var d = (Date.now() - ts) / 1000;
    if (d < 3600) return Math.max(1, Math.round(d / 60)) + ' 分钟前';
    if (d < 86400) return Math.round(d / 3600) + ' 小时前';
    var t = new Date(ts + 8 * 3600e3); return (t.getUTCMonth() + 1) + '-' + t.getUTCDate();
  };
  var tT;
  function toast(t) { var x = document.getElementById('toast'); if (!x) return; x.textContent = t; x.classList.add('show'); clearTimeout(tT); tT = setTimeout(function () { x.classList.remove('show'); }, 1800); }

  /* ---------- 数据 ---------- */
  var SIM = null, REAL = null, RREP = [], ALL = [], shown = 0, loading = false, SORT = 'hot', STAR_N = 3;
  var top = function (c) { return !c.parent; };
  function realOf(c) {
    return { key: 'r:' + c.id, id: c.id, real: 1, n: c.nickname || '孕妈', av: c.avatar || 'assets/img/mom/k01.jpg', s: c.stage, t: c.text,
      likes: c.likes || 0, liked: !!c.liked, star: !!c.star, ts: c.at, r: [] };
  }
  function repOf(c, me) { return { p: c.parent, n: me ? '我' : (c.nickname || '孕妈'), me: me, to: c.parentName, t: c.text, ts: c.at, st: me ? c.status : '' }; }
  function load() {
    if (loading || SIM) return; loading = true;
    fetch('guangchang/cm.json?v=26110618').then(function (r) { return r.json(); }).then(function (j) {
      var PP = j.p;
      SIM = (j.c[PID] || []).map(function (c, k) {
        var p = PP[c[0]];
        return { key: PID + '#' + k, n: p[0], av: avP(p[1]), s: p[2], t: c[1], likes: c[2],
          r: c[3].map(function (x) { var q = x[0] < 0 ? null : PP[x[0]]; return { n: q ? q[0] : '孕妈悄悄话', t: x[1] }; }) };
      });
      build(); paintGo();
    }).catch(function () { SIM = []; build(); });
    fetchReal();
  }
  function fetchReal() {
    return fetch('/api/mp/public/mama-box/plaza/comments?kind=post&target=' + encodeURIComponent(PID) + (OID ? '&openid=' + encodeURIComponent(OID) : ''))
      .then(function (r) { return r.json(); }).then(function (j) {
        var R = j && j.code === 200 && j.result || {};
        if (R.starLikes) STAR_N = R.starLikes;
        var mine = (R.mine || []).filter(function (c) { return c.status !== 'rejected'; });
        REAL = (R.list || []).filter(top).map(realOf).concat(mine.filter(top).map(function (c) { var o = realOf(c); o.n = '我'; o.me = 1; o.st = c.status; return o; }));
        RREP = (R.list || []).filter(function (c) { return !top(c); }).map(function (c) { return repOf(c, 0); })
          .concat(mine.filter(function (c) { return !top(c); }).map(function (c) { return repOf(c, 1); }));
        build(); paintGo();
      }).catch(function () { if (!REAL) { REAL = []; build(); } });
  }
  var wkOf = function (c) { var x = /孕\s*(\d+)\s*周/.exec(c.s || ''); return x ? +x[1] : 0; };
  var likesOf = function (c) { return c.real ? c.likes : c.likes + (LIKE[c.key] ? 1 : 0); };
  var likedOf = function (c) { return c.real ? c.liked : !!LIKE[c.key]; };
  /* 最热：挂了星的在前，再按赞；最新：真实留言按时间，模拟的接在后面；同孕周：和我差 ±1 周的，按最热。我自己发的永远在最上面 */
  function sorted() {
    var mine = REAL.filter(function (c) { return c.me; }), rest = REAL.filter(function (c) { return !c.me; }).concat(SIM);
    var hot = function (a, b) { return (!!b.star - !!a.star) || (likesOf(b) - likesOf(a)); };
    if (SORT === 'new') rest = rest.filter(function (c) { return c.real; }).sort(function (a, b) { return b.ts - a.ts; }).concat(SIM);
    else if (SORT === 'wk') {
      var w = +window.MB_WH_WEEK || 0;
      rest = w ? rest.filter(function (c) { var k = wkOf(c); return k && Math.abs(k - w) <= 1; }) : [];
      rest.sort(hot);
    } else rest.sort(hot);
    return mine.sort(function (a, b) { return b.ts - a.ts; }).concat(rest);
  }
  function total() { return (REAL ? REAL.length : 0) + (SIM ? SIM.length : 0); }
  function paintGo() {
    var n = total();
    document.getElementById('wcmGoN').textContent = n ? n + ' 条' : '';
    var av = (SIM || []).slice(0, 3).map(function (c) { return '<img src="' + esc(c.av) + '" alt="">'; }).join('');
    document.getElementById('wcmGoAv').innerHTML = av;
  }
  function build() {
    if (!SIM || !REAL) return;
    ALL = sorted(); shown = 0; ls.innerHTML = '';
    document.getElementById('wcmN').textContent = total() ? total() + ' 条' : '';
    document.getElementById('wcmRule').textContent = '被赞 ' + STAR_N + ' 次就变成星星';
    if (!ALL.length) {
      ls.innerHTML = '<p class="wcm-e">' + (SORT === 'wk' ? (window.MB_WH_WEEK ? '同孕周的妈妈还没留言，你先说一句吧' : '填好预产期，就能看同孕周妈妈说了啥') : '还没有人留言') + '</p>';
      more.hidden = true; return;
    }
    add(20);
  }
  function repsOf(c) {
    var x = c.r.slice();
    RREP.forEach(function (r) { if (r.p === c.key) x.push(r); });
    return x;
  }
  function item(c) {
    var on = likedOf(c), rp = repsOf(c);
    return '<div class="wcm-it" data-k="' + esc(c.key) + '"><img class="wcm-av" src="' + esc(c.av) + '" alt="" loading="lazy" onerror="this.style.visibility=\'hidden\'">' +
      '<div class="wcm-bd"><p class="wcm-nm"><b>' + esc(c.n) + '</b>' + (c.s ? '<span>' + esc(c.s) + '</span>' : '') + (c.ts ? '<span>' + ago(c.ts) + '</span>' : '') + '</p>' +
      '<p class="wcm-tx">' + esc(c.t) + '</p>' + (c.st === 'pending' ? '<p class="wcm-st">审核中，通过了大家才看得到</p>' : '') +
      (c.star ? '<p class="wcm-star"><svg viewBox="0 0 20 20"><path d="M10 .5C10.9 7.4 12.6 9.1 19.5 10 12.6 10.9 10.9 12.6 10 19.5 9.1 12.6 7.4 10.9.5 10 7.4 9.1 9.1 7.4 10 .5Z"/></svg>已经变成星星了</p>' : '') +
      (rp.length ? '<div class="wcm-rp">' + rp.map(function (x) {
        return '<p' + (x.me ? ' class="me"' : '') + '><b>' + esc(x.n) + '</b>' + (x.to && x.to !== c.n ? ' 回复 <b>' + esc(x.to) + '</b>' : '') + '：' + esc(x.t) +
          (x.st === 'pending' ? '<span class="wcm-st">（审核中）</span>' : '') + '</p>';
      }).join('') + '</div>' : '') +
      (c.me ? '' : '<button type="button" class="wcm-re" data-wrp="' + esc(c.key) + '">回复</button>') + '</div>' +
      (c.me ? '<span class="wcm-lk me">' + HEART + '<span>' + fmt(likesOf(c)) + '</span></span></div>' :
      '<button type="button" class="wcm-lk' + (on ? ' on' : '') + '" data-wcl="' + esc(c.key) + '" aria-label="赞">' + HEART + '<span>' + fmt(likesOf(c)) + '</span></button></div>');
  }
  function add(k) {
    ls.insertAdjacentHTML('beforeend', ALL.slice(shown, shown + k).map(item).join(''));
    shown = Math.min(ALL.length, shown + k); more.hidden = shown >= ALL.length;
  }
  function rerender(c) { var el = ls.querySelector('.wcm-it[data-k="' + CSS.escape(c.key) + '"]'); if (el) el.outerHTML = item(c); }
  more.addEventListener('click', function () { add(30); });

  /* ---------- 点赞 / 回复 ---------- */
  function paintLk(b, c) { var on = likedOf(c); b.classList.toggle('on', on); b.querySelector('span').textContent = fmt(likesOf(c)); }
  var REPLY = null;
  function setReply(c) {
    REPLY = c;
    toEl.hidden = !c; toEl.textContent = c ? '回复 ' + c.n : '';
    inp.placeholder = c ? '回复 ' + c.n + '…' : '说点什么…';
  }
  ls.addEventListener('click', function (e) {
    var r = e.target.closest('[data-wrp]');
    if (r) {
      var rc = ALL.filter(function (x) { return x.key === r.dataset.wrp; })[0]; if (!rc) return;
      setReply(rc); snap('full'); inp.focus(); return;
    }
    var b = e.target.closest('[data-wcl]'); if (!b) return;
    var k = b.dataset.wcl, c = ALL.filter(function (x) { return x.key === k; })[0]; if (!c) return;
    if (!c.real) {
      if (LIKE[k]) delete LIKE[k]; else LIKE[k] = 1;
      try { localStorage.setItem(LK, JSON.stringify(LIKE)); } catch (e2) {}
      paintLk(b, c); if (LIKE[k] && navigator.vibrate) navigator.vibrate(8);
      return;
    }
    /* 真实留言：服务端计数，赞了就不能取消（同星星的抱抱） */
    if (!OID) { toast('登录后就能点赞啦'); return; }
    if (c.liked) { toast('你已经赞过啦'); return; }
    c.liked = true; c.likes++; paintLk(b, c); b.classList.add('pop'); setTimeout(function () { b.classList.remove('pop'); }, 500);
    if (navigator.vibrate) navigator.vibrate(8);
    fetch('/api/mp/public/mama-box/plaza/comment/like?openid=' + encodeURIComponent(OID) + '&id=' + encodeURIComponent(c.id), { method: 'POST' })
      .then(function (x) { return x.json(); }).then(function (j) {
        if (!j || j.code !== 200) throw j;
        c.likes = j.result.likes; var was = c.star; c.star = !!j.result.star; paintLk(b, c);
        if (c.star && !was) { toast('被赞够 ' + STAR_N + ' 次，这句变成星星啦'); rerender(c); }
      }).catch(function (j) { c.liked = false; c.likes--; paintLk(b, c); toast((j && j.message) || '网络不太好，再点一次试试'); });
  });
  sh.querySelector('.wcm-tb').addEventListener('click', function (e) {
    var b = e.target.closest('[data-wso]'); if (!b || b.dataset.wso === SORT) return;
    SORT = b.dataset.wso;
    [].forEach.call(this.querySelectorAll('[data-wso]'), function (x) { x.classList.toggle('on', x === b); });
    build(); lsBox.scrollTop = 0;
  });

  function post(text, week, reply) {
    if (!OID) return Promise.resolve('登录后就能留言啦');
    var body = { kind: 'post', target: PID, title: '孕妈悄悄话 · ' + TH.name, text: text, stage: week ? '孕 ' + week + ' 周' : '' };
    if (reply) { body.parent = reply.key; body.parentName = reply.n; }
    return fetch('/api/mp/public/mama-box/plaza/comment?openid=' + encodeURIComponent(OID), {
      method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body)
    }).then(function (r) { return r.json(); }).then(function (j) {
      if (!j || j.code !== 200 || !j.result) return (j && j.message) || '没发出去，再试一次';
      if (reply) { RREP.push(repOf(j.result, 1)); rerender(reply); }
      else {
        var o = realOf(j.result); o.n = '我'; o.me = 1; o.st = j.result.status;
        REAL = [o].concat(REAL || []);
        if (SIM) { build(); lsBox.scrollTop = 0; }
        paintGo();
      }
      return null;
    }).catch(function () { return '网络不太好，再试一次'; });
  }
  var busy = false;
  function send() {
    var t = inp.value.trim();
    if (t.length < 2) { toast('多写一两个字吧'); return; }
    if (busy) return; busy = true; sendB.disabled = true;
    post(t, +window.MB_WH_WEEK || 0, REPLY).then(function (msg) {
      busy = false; sendB.disabled = false;
      if (msg) { toast(msg); return; }
      inp.value = ''; inp.blur(); setReply(null);
      toast('发出去了，审核通过后大家就能看到');
    });
  }
  sendB.addEventListener('click', send);
  inp.addEventListener('keydown', function (e) { if (e.key === 'Enter') { e.preventDefault(); send(); } });

  /* ---------- 半屏面板：开 / 关 / 拖 ----------
     按高度伸缩（底部输入框一直露着）：half = 星空页 50%，full = 68%（上面至少留 1/3 星空），再往上拉不动；往下拖到 25% 以下关掉 */
  var state = 'closed';
  function ph() { return page.clientHeight; }
  function hFor(s) { return ph() * (s === 'full' ? .68 : .5); }
  function setH(h, anim) { P.style.transition = anim ? '' : 'none'; P.style.height = Math.round(h) + 'px'; }
  function snap(s) {
    state = s;
    sh.classList.toggle('show', s !== 'closed');
    sh.setAttribute('aria-hidden', s === 'closed' ? 'true' : 'false');
    if (s !== 'closed') setH(hFor(s), true);
    if (s === 'closed') { inp.blur(); setReply(null); }
  }
  function open() { load(); snap('half'); }
  go.addEventListener('click', open);
  sh.querySelector('.wcs-x').addEventListener('click', function () { snap('closed'); });
  sh.addEventListener('click', function (e) { if (e.target === sh) snap('closed'); });
  /* 右上角「全部」也开这个面板（原来那个只列悄悄话的抽屉不再用） */
  var all = document.getElementById('whvAll');
  if (all) all.addEventListener('click', function (e) { e.stopImmediatePropagation(); open(); }, true);
  /* 入口上往上划也能拉开 */
  var gy = null;
  go.addEventListener('touchstart', function (e) { gy = e.touches[0].clientY; }, { passive: true });
  go.addEventListener('touchmove', function (e) { if (gy != null && gy - e.touches[0].clientY > 24) { gy = null; open(); } }, { passive: true });
  /* 拖：抓把手 / 标题拖；列表在顶上时往下拖 = 拖面板；半屏时在列表上往上划 = 先把面板拉满 */
  var d0 = null;
  P.addEventListener('touchstart', function (e) {
    if (e.touches.length !== 1 || e.target.closest('.wcs-in')) return;
    d0 = { y: e.touches[0].clientY, base: P.offsetHeight, hd: !!e.target.closest('.wcs-hd'), drag: false, t: Date.now() };
  }, { passive: true });
  P.addEventListener('touchmove', function (e) {
    if (!d0) return;
    var dy = e.touches[0].clientY - d0.y;
    if (!d0.drag) {
      if (Math.abs(dy) < 6) return;
      var canDown = dy > 0 && (d0.hd || lsBox.scrollTop <= 0);
      var canUp = dy < 0 && (d0.hd || state === 'half');
      if (!canDown && !canUp) { d0 = null; return; }
      d0.drag = true;
    }
    if (e.cancelable) e.preventDefault();
    setH(Math.max(ph() * .12, Math.min(hFor('full'), d0.base - dy)), false);
  }, { passive: false });
  P.addEventListener('touchend', function (e) {
    if (!d0) return;
    var dd = d0; d0 = null;
    if (!dd.drag) return;
    var dy = e.changedTouches[0].clientY - dd.y, h = dd.base - dy, v = dy / Math.max(1, Date.now() - dd.t);
    if (v > .6 || h < ph() * .3) snap('closed');
    else if (v < -.4 || h > ph() * .59) snap('full');
    else snap('half');
  });

  /* 关掉星空页时面板一起收 */
  new MutationObserver(function () {
    if (page.classList.contains('show')) load(); else snap('closed');
  }).observe(page, { attributes: true, attributeFilter: ['class'] });
  if (page.classList.contains('show')) load();

  /* 星空页「说一句」→ 发成留言（app.js 的 #whSend 调）。返回 Promise：resolve(null) = 成功，resolve('提示') = 没发出去 */
  window.MBWhCm = {
    starLikes: function () { return STAR_N; },
    post: function (text, week) {
      return post(text, week, null).then(function (msg) { if (!msg) setTimeout(function () { snap('half'); }, 400); return msg; });
    },
    open: open
  };
})();