hub/public/chat-view.js

'use strict';
// ---- Chat: the family messenger (see chat.js on the server). It looks like the Signal screen on purpose and shares its styles (sg*) and helpers (sgTime, sgLink...).
const ch = { convs: [], cur: null, curConv: null, root: null, es: null, unread: 0, reply: null, tray: [], names: {}, people: null, showArchived: false, sendQ: null, found: null, typing: null, typedAt: 0, pins: [] };
const chq = q => (ch.root || document).querySelector(q);
const chApi = (p, o) => jfetch('/api/chat' + p, o);
const chPost = (p, body) => chApi(p, { method: 'POST', headers: { 'content-type': 'application/json' }, body: JSON.stringify(body) });
const chOnView = () => location.hash.startsWith('#/chat');
const chMounted = () => !!ch.root && document.contains(ch.root);
const chDraftKey = id => 'ch_draft:' + (ME ? ME.id : '') + ':' + id;
const chGetDraft = id => { try { return localStorage.getItem(chDraftKey(id)) || ''; } catch { return ''; } };
const chSetDraft = (id, t) => { try { t ? localStorage.setItem(chDraftKey(id), t) : localStorage.removeItem(chDraftKey(id)); } catch {} };

// ---- live updates, kept running whatever screen is open (so the unread count on the menu is always right)
async function chStart() {
  if (!allowed('chat') || ch.es) return;
  try { const st = await chApi('/status'); ch.unread = st.unread || 0; renderNav(activeTab); } catch { return; }
  ch.es = new EventSource('/api/chat/events');
  ch.es.onmessage = e => { let ev; try { ev = JSON.parse(e.data); } catch { return; } chEvent(ev); };
}
let chEvT = null;
function chEvent(ev) {
  if (typeof ev.unread === 'number' && ev.unread !== ch.unread) { ch.unread = ev.unread; renderNav(activeTab); }
  if (ev.t === 'msg' && !ev.out) {
    const looking = chMounted() && ch.cur === ev.conv && document.visibilityState === 'visible' && document.hasFocus();
    if (!looking) { toast((ev.name || 'Chat') + ': ' + (ev.preview || ''));  if (typeof sgAlerts === 'function' && sgAlerts().sound && typeof sgChime === 'function') sgChime(); }
  }
  if (ev.t === 'announce' && typeof chAnnounceCard === 'function') chAnnounceCard(document.getElementById('annc'));
  if (ev.t === 'typing') { if (chMounted() && ch.cur === ev.conv) { ch.typing = { conv: ev.conv, name: ev.name, until: Date.now() + 4500 }; chPaintSub(); setTimeout(chPaintSub, 4600); } return; }
  if (!chMounted()) return;
  clearTimeout(chEvT); chEvT = setTimeout(chRefresh, 150);
}

function viewChat(args = []) { ch.cur = args[0] ? decodeURIComponent(args[0]) : null; return chMount($('#view')); }
async function chMount(root) {
  ch.root = root; root.innerHTML = '<div class="wrap sgwrap"><h1>Chat</h1><p class="empty">Loading…</p></div>';
  root.innerHTML = `<div class="wrap sgwrap"><div class="sg ${ch.cur ? 'open' : ''}"><div class="sgl"><div class="sghead"><h1>Chat</h1><button class="ibtn" id="chset" aria-label="Chat settings">${icon('cog')}</button><button class="btn ghost" id="chnew">${icon('edit')}New</button></div>
    <input type="search" id="chq" placeholder="Search chats and messages" autocomplete="off"><div class="list sglist" id="chlist"></div></div><div class="sgm" id="chm"></div></div></div>`;
  chq('#chnew').onclick = chNewChat; chq('#chset').onclick = chSettings; let t; chq('#chq').oninput = () => { chDrawList(); clearTimeout(t); t = setTimeout(chSearchMessages, 350); };
  await chRefresh(true);
}
async function chRefresh(first) {
  try {
    const r = await chApi('/convs'); ch.convs = r.convs; ch.unread = r.unread; renderNav(activeTab);
    if (!chq('#chlist')) return; chDrawList();
    if (ch.cur) await chDrawThread(first); else chq('#chm').innerHTML = '<p class="empty">Choose a chat, or start a new one.</p>';
  } catch (e) { const l = chq('#chlist'); if (l) l.innerHTML = `<p class="err" style="padding:12px">${esc(e.message)}</p>`; }
}
async function chSearchMessages() {
  const q = (chq('#chq') || {}).value ? chq('#chq').value.trim() : ''; if (q.length < 2) { ch.found = null; return chDrawList(); }
  try { const r = await chApi('/search?q=' + encodeURIComponent(q)); if ((chq('#chq') || {}).value.trim() === q) { ch.found = r.results; chDrawList(); } } catch { /* the list still works */ }
}
function chRow(c) {
  return `<a class="row sgrow ${c.id === ch.cur ? 'on' : ''}" data-id="${esc(c.id)}" href="#/chat/${encodeURIComponent(c.id)}"><span class="sgav" style="background:${sgColor(c.id)}">${c.type === 'group' ? icon('chat') : esc(sgInitial(c.name))}</span>
    <span class="grow"><b>${esc(c.name)}${c.muted ? ' 🔕' : ''}</b><small>${esc(c.preview || '')}</small></span><span class="sgside"><small>${c.preview || c.ts ? sgTime(c.ts) : ''}</small>${c.unread ? `<i class="nbadge" style="position:static${c.muted ? ';opacity:.5' : ''}">${c.unread}</i>` : ''}</span></a>`;
}
function chDrawList() {
  const q = (chq('#chq') || {}).value ? chq('#chq').value.toLowerCase().trim() : '', box = chq('#chlist'); if (!box) return;
  const match = c => !q || c.name.toLowerCase().includes(q) || (c.preview || '').toLowerCase().includes(q), live = ch.convs.filter(c => !c.archived && match(c)), arch = ch.convs.filter(c => c.archived && match(c));
  const found = q.length >= 2 && ch.found ? ch.found : [];
  box.innerHTML = live.map(chRow).join('') + (arch.length ? `<button class="row" id="charch"><span class="grow"><small>${ch.showArchived || q ? '▾' : '▸'} Archived (${arch.length})</small></span></button>${ch.showArchived || q ? arch.map(chRow).join('') : ''}` : '')
    + (found.length ? `<p class="sub" style="margin:12px 12px 4px">In messages</p>${found.map(f => `<a class="row sgrow" href="#/chat/${encodeURIComponent(f.conv)}"><span class="grow"><b>${esc(f.convName)}</b><small>${esc(f.msg.name)}: ${esc(f.msg.text)}</small></span><span class="sgside"><small>${sgTime(f.msg.ts)}</small></span></a>`).join('')}` : '')
    || '';
  if (!box.innerHTML) box.innerHTML = `<p class="empty">${q ? 'Nothing matches' : 'No chats yet. Tap New to start one.'}</p>`;
  const a = box.querySelector('#charch'); if (a) a.onclick = () => { ch.showArchived = !ch.showArchived; chDrawList(); };
  box.oncontextmenu = e => { const r = e.target.closest('[data-id]'); if (r) { e.preventDefault(); chChatMenu(r.dataset.id); } };
}

/** @Name in a message stands out (and means that person gets an alert even if they muted the group). */
const chMention = html => { const names = Object.values(ch.names || {}).filter(Boolean).sort((a, b) => b.length - a.length); let out = html; for (const n of names) out = out.replace(new RegExp('(^|\\s)@' + esc(n).replace(/[.*+?^${}()|[\]\\]/g, '\\$&') + '(?![\\w])', 'gi'), (x, pre) => pre + '<b class="mention">@' + esc(n) + '</b>'); return out; };
const chDur = s => { s = Math.round(+s || 0); return Math.floor(s / 60) + ':' + String(s % 60).padStart(2, '0'); };
function chPoll(m) {
  const P = m.poll, votes = P.votes || {}, count = id => Object.values(votes).filter(v => v.includes(id)).length, total = Object.keys(votes).length, mine = (ME && votes[ME.id]) || [];
  return `<div class="sgpoll"><b class="sgpq" title="Who voted">📊 ${esc(P.q)}</b><small>${P.multi ? 'Choose any' : 'Choose one'}${P.closed ? ' · closed' : ''}</small>
    ${P.options.map(o => { const n = count(o.id); return `<button type="button" class="sgopt ${mine.includes(o.id) ? 'on' : ''}" data-o="${esc(o.id)}" ${P.closed ? 'disabled' : ''}><i style="width:${total ? Math.round(n / total * 100) : 0}%"></i><span>${mine.includes(o.id) ? '✓ ' : ''}${esc(o.text)}</span><small>${n}</small></button>`; }).join('')}
    <small>${total} ${total === 1 ? 'person has' : 'people have'} voted</small></div>`;
}
function chBubble(m, c, prev) {
  const att = (m.att || []).map(a => { const u = '/api/chat/file/' + a.id;
    return /^image\//.test(a.type || '') ? `<a href="${u}" target="_blank" rel="noopener"><img class="sgimg" loading="lazy" alt="${esc(a.name || 'photo')}" src="${u}"></a>`
      : a.voice ? `<div class="sgvoice" data-src="${u}" data-dur="${a.dur || 0}"><button type="button" class="ibtn sgvp" aria-label="Play">${icon('play')}</button><span class="sgbars">${(a.wave && a.wave.length ? a.wave : Array(28).fill(30)).map(v => `<i style="height:${Math.max(12, v)}%"></i>`).join('')}</span><small class="sgvt">${chDur(a.dur)}</small></div>`
      : /^audio\//.test(a.type || '') ? `<audio controls preload="none" src="${u}"></audio>` : /^video\//.test(a.type || '') ? `<video controls preload="metadata" playsinline src="${u}"></video>`
      : `<a class="sgfile" href="${u}?dl=1" target="_blank" rel="noopener">${icon('clip')}<span>${esc(a.name || 'file')}${a.size ? ' · ' + sgSize(a.size) : ''}</span></a>`; }).join('');
  const reacts = {}; Object.values(m.react || {}).forEach(e => { reacts[e] = (reacts[e] || 0) + 1; });
  const day = !prev || new Date(prev.ts).toDateString() !== new Date(m.ts).toDateString() ? `<div class="sgday">${new Date(m.ts).toLocaleDateString([], { weekday: 'long', month: 'long', day: 'numeric' })}</div>` : '';
  if (m.sys) return `${day}<div class="sgday sgsys">${esc(m.text)}</div>`;
  const tick = m.out && m.status ? `<span class="${m.status === 'read' ? 'sgrd' : ''}">${m.status === 'sent' ? '✓' : '✓✓'}</span>` : '';
  return `${day}<div class="sgb ${m.out ? 'out' : 'in'}" data-id="${esc(m.id)}">${m.fwd ? `<small class="sgfwd">↪ Forwarded from ${esc(m.fwd.name)}</small>` : ''}${c.type === 'group' && !m.out ? `<small class="who" style="color:${sgColor(m.from)}">${esc(m.name)}</small>` : ''}
    ${m.poll ? chPoll(m) : ''}${m.quote ? `<div class="sgq"><b>${esc(m.quote.name)}</b><span>${esc(m.quote.text || 'Message')}</span></div>` : ''}${att}
    ${m.deleted ? '<i class="sgdel">This message was deleted</i>' : m.text ? `<div class="sgt">${chMention(sgLink(esc(m.text)).replace(/\n/g, '<br>'))}</div>` : ''}
    ${m.link && !m.deleted ? `<a class="sgprev" href="${esc(m.link.url)}" target="_blank" rel="noopener noreferrer">${m.link.image ? `<img alt="" loading="lazy" src="${esc(stOk(m.link.image))}" onerror="this.remove()">` : ''}<span><small>${esc(m.link.site || new URL(m.link.url).hostname)}</small><b>${esc(m.link.title)}</b>${m.link.desc ? `<em>${esc(m.link.desc)}</em>` : ''}</span></a>` : ''}
    <span class="sgmeta">${m.exp ? '⏱ ' : ''}${m.edited ? 'edited · ' : ''}${new Date(m.ts).toLocaleTimeString([], { hour: 'numeric', minute: '2-digit' })}${tick ? ' ' + tick : ''}</span>
    ${Object.keys(reacts).length ? `<span class="sgre">${Object.entries(reacts).map(([e, n]) => e + (n > 1 ? ' ' + n : '')).join(' ')}</span>` : ''}</div>`;
}
async function chDrawThread(first) {
  const box = chq('#chm'); if (!box) return;
  const id = ch.cur; let r;
  try { r = await chApi('/conv/' + encodeURIComponent(id)); } catch (e) { box.innerHTML = `<p class="err">${esc(e.message)}</p>`; return; }
  if (ch.cur !== id || !chq('#chm')) return; ch.names = r.names || {};
  const c = r.conv, old = box.querySelector('.sgmsgs'), stick = !old || old.scrollHeight - old.scrollTop - old.clientHeight < 80;
  if (!box.querySelector('.sgbar')) {
    box.innerHTML = `<div class="sgbar"><a class="ibtn sgback" href="#/chat" aria-label="Back to chats">${icon('back')}</a><span class="sgav" style="background:${sgColor(c.id)}">${c.type === 'group' ? icon('chat') : esc(sgInitial(c.name))}</span><span class="grow"><b id="chtitle"></b><small id="chsub"></small></span><button class="ibtn" id="chmore" aria-label="Chat options">${icon('more')}</button></div>
      <button type="button" class="sgpin" id="chpin" hidden></button><div class="sgmsgs" id="chmsgs"></div><div id="chrep" class="sgrep" hidden></div><div id="chtray" class="sgtray" hidden></div>
      <form class="sgc" id="chform"><button type="button" class="ibtn" id="chat" aria-label="Attach">${icon('clip')}</button><input type="file" id="chfile" multiple hidden>
      <textarea id="chtext" rows="1" placeholder="Message" enterkeyhint="send"></textarea><button type="button" class="ibtn" id="chem" aria-label="Emoji">😊</button><button type="button" class="ibtn" id="chmic" aria-label="Record a voice message">${icon('mic')}</button><button class="ibtn sgsend" id="chsend" aria-label="Send">${icon('send')}</button></form>`;
    chWireComposer(); chq('#chmore').onclick = () => chChatMenu(ch.cur); const ta = chq('#chtext'); ta.value = chGetDraft(id); ta.style.height = 'auto'; ta.style.height = Math.min(ta.scrollHeight, 140) + 'px';
  }
  ch.curConv = c; ch.names = Object.fromEntries(c.members.map(x => [x.id, x.name])); ch.pins = r.pinned || []; chq('#chtitle').textContent = c.name; chPaintSub(); chDrawPin();
  const list = r.msgs, el = chq('#chmsgs');
  el.innerHTML = (r.more ? '<p class="sub" style="text-align:center">Older messages are not shown here</p>' : '') + list.map((m, i) => chBubble(m, c, list[i - 1])).join('') || '<p class="empty">No messages yet. Say hello.</p>';
  if (first || stick) el.scrollTop = el.scrollHeight;
  el.onclick = e => {
    const b = e.target.closest('.sgb'), m0 = b && list.find(m => m.id === b.dataset.id), opt = e.target.closest('.sgopt'), vc = e.target.closest('.sgvoice'), pq = e.target.closest('.sgpq');
    if (opt && m0) return chVote(m0, opt.dataset.o); if (vc) return chPlayVoice(vc); if (pq && m0) return chPollWho(m0);
    if (!b || e.target.closest('a, audio, video')) return; chMessageMenu(m0, c);
  };
  if (c.unread) chPost('/read', { id }).then(() => { const x = ch.convs.find(q => q.id === id); if (x) x.unread = 0; chDrawList(); }).catch(() => {});
}
function chMessageMenu(m, c) {
  if (!m || m.deleted) return;
  const mine = m.out, el = openSheet('', '', `<div class="sgemo">${['👍', '❤️', '😂', '😮', '😢', '🙏'].map(e => `<button class="ibtn" data-e="${e}" aria-label="React ${e}">${e}</button>`).join('')}</div>
    <div class="list" style="background:var(--panel2);border:0;margin-top:8px"><button class="row" id="chr">${icon('back')}<span class="grow"><b>Reply</b></span></button>${m.text ? `<button class="row" id="chcp">${icon('copy')}<span class="grow"><b>Copy text</b></span></button>` : ''}
    ${m.text && allowed('tasks') ? `<button class="row" id="chtk">${icon('check')}<span class="grow"><b>Make a task</b></span></button>` : ''}${m.text && allowed('recipes') ? `<button class="row" id="chsh">${icon('chef')}<span class="grow"><b>Add to the shopping list</b></span></button>` : ''}${m.text && allowed('calendar') ? `<button class="row" id="chev">${icon('cal')}<span class="grow"><b>Add to the calendar</b></span></button>` : ''}
    <button class="row" id="chfw">${icon('send')}<span class="grow"><b>Forward</b></span></button><button class="row" id="chpn">${icon('bookmark')}<span class="grow"><b>${ch.pins.some(p => p.id === m.id) ? 'Unpin' : 'Pin'}</b></span></button>
    ${mine && m.text ? `<button class="row" id="ched">${icon('edit')}<span class="grow"><b>Edit</b></span></button>` : ''}${mine ? `<button class="row" id="chdl">${icon('trash')}<span class="grow"><b style="color:var(--danger)">Delete for everyone</b></span></button>` : ''}</div>`);
  el.querySelectorAll('[data-e]').forEach(b => b.onclick = async () => { closeSheet(); try { await chPost('/react', { conv: c.id, msg: m.id, emoji: (m.react && ME && m.react[ME.id]) === b.dataset.e ? '' : b.dataset.e }); } catch (e) { toast(e.message); } });
  el.querySelector('#chr').onclick = () => { closeSheet(); ch.reply = m; chDrawReply(); chq('#chtext').focus(); };
  const tk = el.querySelector('#chtk'); if (tk) tk.onclick = async () => { closeSheet(); try { await jfetch('/api/tasks', { method: 'POST', headers: { 'content-type': 'application/json' }, body: JSON.stringify({ list: 'local:inbox', fields: { title: m.text.slice(0, 200), notes: 'From Chat (' + m.name + ')', due: '', done: false } }) }); toast('Added to your tasks', { label: 'Open', run: () => { location.hash = '#/tasks'; } }); } catch (e) { toast(e.message); } };
  const sh = el.querySelector('#chsh'); if (sh) sh.onclick = async () => { closeSheet(); try { await jfetch('/api/recipes/shopping/add', { method: 'POST', headers: { 'content-type': 'application/json' }, body: JSON.stringify({ text: m.text.slice(0, 200) }) }); toast('Added to the shopping list', { label: 'Open', run: () => { location.hash = '#/recipes/shop'; } }); } catch (e) { toast(e.message); } };
  const ev = el.querySelector('#chev'); if (ev) ev.onclick = () => { closeSheet(); chMakeEvent(m); };
  el.querySelector('#chfw').onclick = () => { closeSheet(); chForward(m, c.id); };
  el.querySelector('#chpn').onclick = async () => { closeSheet(); try { await chPost('/pin', { conv: c.id, msg: m.id, on: !ch.pins.some(p => p.id === m.id) }); } catch (e) { toast(e.message); } };
  const cp = el.querySelector('#chcp'); if (cp) cp.onclick = async () => { closeSheet(); try { await navigator.clipboard.writeText(m.text); toast('Copied'); } catch { toast('Could not copy'); } };
  const ed = el.querySelector('#ched'); if (ed) ed.onclick = () => { closeSheet(); textSheet('Edit message', 'Message', 'Save', async t => { try { await chPost('/edit', { conv: c.id, msg: m.id, text: t }); } catch (e) { toast(e.message); } }, m.text); };
  const dl = el.querySelector('#chdl'); if (dl) dl.onclick = () => { closeSheet(); confirmSheet('Delete this message?', 'It disappears for everyone in the chat.', 'Delete', async () => { try { await chPost('/delete', { conv: c.id, msg: m.id }); } catch (e) { toast(e.message); } }); };
}
function chDrawReply() {
  const b = chq('#chrep'); if (!b) return; if (!ch.reply) { b.hidden = true; return; }
  b.hidden = false; b.innerHTML = `<span class="grow"><b>${esc(ch.reply.out ? 'You' : ch.reply.name)}</b><small>${esc(ch.reply.text || 'Attachment')}</small></span><button class="ibtn" id="chrx" aria-label="Cancel reply">${icon('x')}</button>`;
  chq('#chrx').onclick = () => { ch.reply = null; chDrawReply(); };
}
function chDrawTray() {
  const t = chq('#chtray'); if (!t) return; t.hidden = !ch.tray.length;
  t.innerHTML = ch.tray.map((f, i) => `<span class="sgchip">${/^image\//.test(f.type) ? `<img alt="" src="${URL.createObjectURL(f)}">` : icon('clip')}<small>${esc(f.name)}</small><button type="button" class="ibtn" data-x="${i}" aria-label="Remove">${icon('x')}</button></span>`).join('');
  t.querySelectorAll('[data-x]').forEach(b => b.onclick = () => { ch.tray.splice(+b.dataset.x, 1); chDrawTray(); });
}
function chWireComposer() {
  const ta = chq('#chtext'), grow = () => { ta.style.height = 'auto'; ta.style.height = Math.min(ta.scrollHeight, 140) + 'px'; };
  ta.oninput = () => { grow(); chSetDraft(ch.cur, ta.value); if (ta.value.trim() && Date.now() - ch.typedAt > 3000) { ch.typedAt = Date.now(); chPost('/typing', { conv: ch.cur }).catch(() => {}); } };
  chMentionBox(ta);
  ta.onkeydown = e => { if (e.key === 'Enter' && !e.shiftKey && matchMedia('(pointer: fine)').matches) { e.preventDefault(); chq('#chform').requestSubmit(); } };
  chq('#chat').onclick = () => actionSheet('Attach', '', [{ label: 'Photo or file', icon: 'clip', run: () => chq('#chfile').click() }, { label: 'Poll', icon: 'check', run: chNewPoll }]);
  chq('#chem').onclick = chEmojiPanel; chq('#chmic').onclick = chRecStart;
  const sw = () => { const has = !!ta.value.trim() || ch.tray.length; chq('#chmic').hidden = has; chq('#chsend').hidden = !has; }; ta.addEventListener('input', sw); sw(); ch.swSend = sw;
  chq('#chfile').onchange = e => { ch.tray.push(...e.target.files); e.target.value = ''; chDrawTray(); ch.swSend(); };
  ta.addEventListener('paste', e => { const fs = [...(e.clipboardData && e.clipboardData.files || [])]; if (fs.length) { ch.tray.push(...fs); chDrawTray(); } });
  // The message appears at once, dimmed as "Sending…"; if it fails, the words and files go back into the box so nothing is lost.
  chq('#chform').onsubmit = e => {
    e.preventDefault(); const text = ta.value, files = [...ch.tray], reply = ch.reply, to = ch.cur; if (!text.trim() && !files.length) return;
    ta.value = ''; grow(); chSetDraft(to, ''); ch.tray = []; ch.reply = null; chDrawTray(); chDrawReply(); ta.focus(); ch.swSend();
    const list = chq('#chmsgs'), tmp = document.createElement('div'); tmp.className = 'sgb out'; tmp.style.opacity = '.65'; tmp.innerHTML = `${esc(text) || 'Attachment'}<div class="sgmeta"><small>Sending…</small></div>`;
    if (list) { list.appendChild(tmp); list.scrollTop = list.scrollHeight; }
    ch.sendQ = (ch.sendQ || Promise.resolve()).then(async () => { // one at a time, so quick messages arrive in the order you wrote them
      try {
        const ids = []; for (const f of files) { const up = await chApi('/upload?conv=' + encodeURIComponent(to) + '&name=' + encodeURIComponent(f.name), { method: 'POST', body: f, headers: { 'content-type': f.type || 'application/octet-stream' } }); ids.push(up.id); }
        await chPost('/send', { conv: to, text, files: ids, quote: reply ? reply.id : undefined }); tmp.remove(); await chRefresh(); const el = chq('#chmsgs'); if (el) el.scrollTop = el.scrollHeight;
      } catch (err) { tmp.remove(); toast(err.message || 'Could not send'); if (ch.cur === to && !ta.value) { ta.value = text; grow(); ch.tray = files; ch.reply = reply; chDrawTray(); chDrawReply(); } }
    });
  };
}

// ---- starting chats, groups and managing them
async function chPeople() { if (!ch.people) ch.people = await chApi('/people'); return ch.people; }
async function chNewChat() {
  let people = []; try { people = await chPeople(); } catch (e) { return toast(e.message); }
  const el = openSheet('New chat', 'Pick someone in the family', `<div class="list">${people.map(p => `<button class="row" data-p="${esc(p.id)}"><span class="sgav" style="background:${sgColor(p.id)}">${esc(sgInitial(p.name))}</span><span class="grow"><b>${esc(p.name)}</b></span></button>`).join('') || '<p class="empty">There is nobody else with Chat yet. An admin can turn it on for people in Settings.</p>'}</div>
    ${people.length > 1 ? '<div class="bar"><button class="btn ghost" id="chg" style="width:100%;justify-content:center">New group…</button></div>' : ''}`);
  el.querySelectorAll('[data-p]').forEach(b => b.onclick = async () => { try { const r = await chPost('/new', { type: 'direct', with: b.dataset.p }); closeSheet(); location.hash = '#/chat/' + encodeURIComponent(r.conv.id); } catch (e) { toast(e.message); } });
  const g = el.querySelector('#chg'); if (g) g.onclick = () => { closeSheet(); chNewGroup(people); };
}
function chNewGroup(people) {
  const el = openSheet('New group', '', `<form id="chgf"><label for="chgn">Group name</label><input type="text" id="chgn" maxlength="60" required autocomplete="off" placeholder="Family"><label>Who is in it?</label>
    <div class="list">${people.map(p => `<label class="row" style="cursor:pointer"><input type="checkbox" data-p="${esc(p.id)}" checked><span class="grow"><b>${esc(p.name)}</b></span></label>`).join('')}</div><div class="err" id="chge"></div>
    <div class="bar"><button class="btn ghost" type="button" id="chgx" style="flex:1;justify-content:center">Cancel</button><button class="btn" style="flex:1;justify-content:center">Create</button></div></form>`);
  el.querySelector('#chgx').onclick = closeSheet; setTimeout(() => el.querySelector('#chgn').focus(), 60);
  el.querySelector('#chgf').onsubmit = async e => { e.preventDefault(); try { const r = await chPost('/new', { type: 'group', name: el.querySelector('#chgn').value, members: [...el.querySelectorAll('[data-p]:checked')].map(c => c.dataset.p) }); closeSheet(); location.hash = '#/chat/' + encodeURIComponent(r.conv.id); } catch (x) { el.querySelector('#chge').textContent = x.message; } };
}
function chChatMenu(id) {
  const c = ch.convs.find(x => x.id === id); if (!c) return; const acts = [];
  acts.push({ label: c.muted ? 'Unmute' : 'Mute', icon: 'bell', run: async () => { try { await chPost('/conv/mute', { id, on: !c.muted }); toast(c.muted ? 'Unmuted' : 'Muted. No alerts from this chat.'); chRefresh(); } catch (e) { toast(e.message); } } });
  acts.push({ label: c.archived ? 'Move out of the archive' : 'Archive', icon: 'files', run: async () => { try { await chPost('/conv/archive', { id, on: !c.archived }); if (!c.archived && ch.cur === id) location.hash = '#/chat'; chRefresh(); } catch (e) { toast(e.message); } } });
  acts.push({ label: 'Disappearing messages' + (c.ttl ? ' · on' : ''), icon: 'clock', run: () => chTtlSheet(c) });
  if (c.type === 'group') {
    acts.push({ label: 'Rename the group', icon: 'edit', run: () => textSheet('Rename group', 'Group name', 'Rename', async n => { try { await chPost('/conv/update', { id, name: n }); chRefresh(); } catch (e) { toast(e.message); } }, c.name) });
    acts.push({ label: 'People in the group', icon: 'people', run: () => chMembers(c) });
    acts.push({ label: 'Leave the group', icon: 'trash', danger: true, run: () => confirmSheet('Leave this group?', c.name, 'Leave', async () => { try { await chPost('/conv/update', { id, leave: true }); location.hash = '#/chat'; chRefresh(); } catch (e) { toast(e.message); } }) });
  }
  actionSheet(c.name, c.type === 'group' ? c.members.length + ' people' : 'Chat', acts);
}
async function chMembers(c) {
  let people = []; try { people = await chPeople(); } catch (e) { return toast(e.message); }
  const owner = ME && (ME.role === 'admin' || c.by === ME.id), others = people.filter(p => !c.members.some(m => m.id === p.id));
  const el = openSheet(c.name, 'People in the group', `<div class="list">${c.members.map(m => `<div class="row"><span class="sgav" style="background:${sgColor(m.id)}">${esc(sgInitial(m.name))}</span><span class="grow"><b>${esc(m.name)}${ME && m.id === ME.id ? ' (you)' : ''}${m.id === c.by ? ' · made it' : ''}</b></span>${owner && !(ME && m.id === ME.id) ? `<button class="btn danger" data-r="${esc(m.id)}" style="min-height:34px">Remove</button>` : ''}</div>`).join('')}</div>
    ${others.length ? `<h2>Add someone</h2><div class="list">${others.map(p => `<button class="row" data-a="${esc(p.id)}"><span class="sgav" style="background:${sgColor(p.id)}">${esc(sgInitial(p.name))}</span><span class="grow"><b>${esc(p.name)}</b></span>${icon('plus')}</button>`).join('')}</div>` : ''}`);
  const act = async body => { try { await chPost('/conv/update', { id: c.id, ...body }); closeSheet(); chRefresh(); } catch (e) { toast(e.message); } };
  el.querySelectorAll('[data-r]').forEach(b => b.onclick = () => act({ remove: [b.dataset.r] })); el.querySelectorAll('[data-a]').forEach(b => b.onclick = () => act({ add: [b.dataset.a] }));
}

/** The line under the chat's name: who is typing, or who is here, or (for a group) who is in it, and the disappearing-messages timer. */
function chPaintSub() {
  const el = chq('#chsub'), c = ch.curConv; if (!el || !c) return;
  const ty = ch.typing && ch.typing.conv === c.id && ch.typing.until > Date.now() ? ch.typing.name + ' is typing…' : '';
  const ago = t => { const m = Math.round((Date.now() - t) / 60000); return m < 1 ? 'just now' : m < 60 ? m + ' min ago' : m < 1440 ? Math.round(m / 60) + ' h ago' : new Date(t).toLocaleDateString([], { month: 'short', day: 'numeric' }); };
  const base = c.type === 'group' ? c.members.map(x => x.name).join(', ') : c.presence ? (c.presence.online ? '● Online' : c.presence.seen ? 'Active ' + ago(c.presence.seen) : '') : '';
  el.textContent = ty || (base + (c.ttl ? (base ? ' · ' : '') + '⏱ ' + (c.ttl === 3600 ? '1 hour' : c.ttl === 86400 ? '1 day' : '1 week') : ''));
  el.style.color = ty ? 'var(--accent)' : '';
}
function chDrawPin() {
  const b = chq('#chpin'); if (!b) return; if (!ch.pins.length) { b.hidden = true; return; }
  const last = ch.pins[ch.pins.length - 1]; b.hidden = false; b.innerHTML = `<span>📌</span><span class="grow"><small>${ch.pins.length > 1 ? ch.pins.length + ' pinned messages' : 'Pinned message'}</small><b>${esc(last.text || (last.att && last.att[0] ? last.att[0].name : 'Attachment'))}</b></span>`;
  b.onclick = () => { const el = openSheet('Pinned', '', `<div class="list">${ch.pins.slice().reverse().map(m => `<div class="row"><button class="rmain" data-go="${esc(m.id)}"><span class="grow"><b>${esc(m.name)}</b><small style="white-space:normal">${esc(m.text || 'Attachment')}</small></span></button><button class="ibtn" data-un="${esc(m.id)}" aria-label="Unpin">${icon('x')}</button></div>`).join('')}</div>`);
    el.querySelectorAll('[data-go]').forEach(x => x.onclick = () => { closeSheet(); const t = chq(`.sgb[data-id="${CSS.escape(x.dataset.go)}"]`); if (t) { t.scrollIntoView({ block: 'center' }); t.classList.add('flash'); setTimeout(() => t.classList.remove('flash'), 1400); } });
    el.querySelectorAll('[data-un]').forEach(x => x.onclick = async () => { closeSheet(); try { await chPost('/pin', { conv: ch.cur, msg: x.dataset.un, on: false }); } catch (e) { toast(e.message); } }); };
}
function chTtlSheet(c) {
  actionSheet('Disappearing messages', 'New messages in this chat go after the time you pick', [[0, 'Off'], [3600, '1 hour'], [86400, '1 day'], [604800, '1 week']].map(([v, l]) => ({ label: l + ((c.ttl || 0) === v ? '  ✓' : ''), icon: 'clock', run: async () => { try { await chPost('/conv/ttl', { id: c.id, ttl: v }); } catch (e) { toast(e.message); } } })));
}
function chForward(m, from) {
  const el = openSheet('Forward to…', '', `<div class="list" style="max-height:50dvh;overflow:auto">${ch.convs.map(c => `<button class="row" data-t="${esc(c.id)}"><span class="sgav" style="background:${sgColor(c.id)}">${c.type === 'group' ? icon('chat') : esc(sgInitial(c.name))}</span><span class="grow"><b>${esc(c.name)}</b></span></button>`).join('') || '<p class="empty">No chats yet.</p>'}</div>`);
  el.querySelectorAll('[data-t]').forEach(b => b.onclick = async () => { closeSheet(); try { await chPost('/forward', { from, to: b.dataset.t, msg: m.id }); toast('Forwarded'); } catch (e) { toast(e.message); } });
}
/** Type @ in a group and the people in it are offered. */
function chMentionBox(ta) {
  let box; const close = () => { if (box) { box.remove(); box = null; } };
  const show = () => {
    const c = ch.curConv; if (!c || c.type !== 'group') return close(); const before = ta.value.slice(0, ta.selectionStart), m = /(^|\s)@(\w*)$/.exec(before); if (!m) return close();
    const rows = c.members.filter(x => ME && x.id !== ME.id && x.name.toLowerCase().startsWith(m[2].toLowerCase())).slice(0, 6); if (!rows.length) return close();
    if (!box) { box = document.createElement('div'); box.className = 'ctsug'; box.style.cssText += ';bottom:100%;top:auto'; ta.closest('form').style.position = 'relative'; ta.closest('form').appendChild(box); }
    box.innerHTML = rows.map((r, i) => `<button type="button" data-i="${i}"><b>@${esc(r.name)}</b></button>`).join('');
    box.querySelectorAll('button').forEach(b => b.onmousedown = e => { e.preventDefault(); const r = rows[+b.dataset.i], pos = ta.selectionStart - m[2].length; ta.value = ta.value.slice(0, pos) + r.name + ' ' + ta.value.slice(ta.selectionStart); ta.selectionStart = ta.selectionEnd = pos + r.name.length + 1; close(); ta.dispatchEvent(new Event('input')); });
  };
  ta.addEventListener('input', show); ta.addEventListener('blur', () => setTimeout(close, 120));
}

async function chVote(m, opt) {
  const P = m.poll, mine = (ME && (P.votes || {})[ME.id]) || []; let opts;
  if (P.multi) opts = mine.includes(opt) ? mine.filter(x => x !== opt) : [...mine, opt]; else opts = mine.includes(opt) ? [] : [opt];
  try { await chPost('/vote', { conv: ch.cur, msg: m.id, opts }); } catch (e) { toast(e.message); }
}
function chPollWho(m) {
  const P = m.poll, votes = P.votes || {};
  const el = openSheet(P.q, P.multi ? 'Choose any' : 'Choose one', `<div class="list">${P.options.map(o => { const who = Object.entries(votes).filter(([, v]) => v.includes(o.id)).map(([u]) => ch.names[u] || 'Someone'); return `<div class="row"><span class="grow"><b>${esc(o.text)}</b><small style="white-space:normal">${who.length ? esc(who.join(', ')) : 'No votes yet'}</small></span></div>`; }).join('')}</div>
    ${m.out && !P.closed ? '<div class="bar"><button class="btn ghost" id="chpc" style="width:100%;justify-content:center">Close the poll</button></div>' : ''}`);
  const c = el.querySelector('#chpc'); if (c) c.onclick = async () => { closeSheet(); try { await chPost('/poll/close', { conv: ch.cur, msg: m.id }); } catch (e) { toast(e.message); } };
}
function chNewPoll() {
  const el = openSheet('New poll', 'Ask the chat to vote', `<form id="chpf"><label for="chpq">Question</label><input type="text" id="chpq" maxlength="200" required autocomplete="off" placeholder="Pizza or tacos?">
    <label>Choices</label><div id="chpo">${[1, 2].map(i => `<input type="text" class="chpopt" maxlength="100" placeholder="Choice ${i}" autocomplete="off" style="margin-top:6px">`).join('')}</div>
    <div class="bar" style="justify-content:flex-start"><button type="button" class="btn ghost" id="chpadd">${icon('plus')}Add a choice</button></div>
    <label class="row" style="cursor:pointer"><span class="grow"><b>Allow several answers</b></span><input type="checkbox" id="chpm"></label><div class="err" id="chpe"></div>
    <div class="bar"><button class="btn ghost" type="button" id="chpx" style="flex:1;justify-content:center">Cancel</button><button class="btn" style="flex:1;justify-content:center">Send</button></div></form>`);
  el.querySelector('#chpx').onclick = closeSheet; setTimeout(() => el.querySelector('#chpq').focus(), 60);
  el.querySelector('#chpadd').onclick = () => { const box = el.querySelector('#chpo'); if (box.children.length >= 8) return; const i = document.createElement('input'); i.type = 'text'; i.className = 'chpopt'; i.maxLength = 100; i.placeholder = 'Choice ' + (box.children.length + 1); i.style.marginTop = '6px'; box.appendChild(i); i.focus(); };
  el.querySelector('#chpf').onsubmit = async e => { e.preventDefault(); try { await chPost('/poll', { conv: ch.cur, question: el.querySelector('#chpq').value, options: [...el.querySelectorAll('.chpopt')].map(x => x.value), multi: el.querySelector('#chpm').checked }); closeSheet(); await chRefresh(); const l = chq('#chmsgs'); if (l) l.scrollTop = l.scrollHeight; } catch (x) { el.querySelector('#chpe').textContent = x.message; } };
}
// ---- voice messages: play (one at a time) ...
function chPlayVoice(box) {
  const a = ch.audio || (ch.audio = new Audio()), same = ch.playing === box;
  if (ch.playing && ch.playing !== box) chStopVoice();
  if (same && !a.paused) { a.pause(); box.querySelector('.sgvp').innerHTML = icon('play'); return; }
  if (!same) { a.src = box.dataset.src; ch.playing = box; a.onended = chStopVoice; a.ontimeupdate = () => { const d = a.duration || +box.dataset.dur || 1, bars = box.querySelectorAll('.sgbars i'), k = Math.round(a.currentTime / d * bars.length); bars.forEach((b, i) => b.classList.toggle('on', i < k)); box.querySelector('.sgvt').textContent = chDur(a.currentTime); }; }
  a.play().then(() => { box.querySelector('.sgvp').innerHTML = icon('pause'); }).catch(() => toast('Could not play that'));
}
function chStopVoice() { const a = ch.audio, b = ch.playing; if (a) a.pause(); if (b) { b.querySelector('.sgvp').innerHTML = icon('play'); b.querySelectorAll('.sgbars i').forEach(x => x.classList.remove('on')); b.querySelector('.sgvt').textContent = chDur(b.dataset.dur); } ch.playing = null; }
// ... and record
async function chRecStart() {
  if (ch.rec) return; if (!navigator.mediaDevices || !window.MediaRecorder) return toast('This browser cannot record audio');
  let stream; try { stream = await navigator.mediaDevices.getUserMedia({ audio: true }); } catch { return toast('Allow the microphone to record a voice message'); }
  const type = ['audio/mp4', 'audio/webm;codecs=opus', 'audio/webm', 'audio/ogg;codecs=opus'].find(t => MediaRecorder.isTypeSupported(t)) || '', mr = new MediaRecorder(stream, type ? { mimeType: type } : undefined), chunks = [], wave = [];
  let ac, an, tick; try { ac = new (window.AudioContext || window.webkitAudioContext)(); an = ac.createAnalyser(); an.fftSize = 256; ac.createMediaStreamSource(stream).connect(an); const buf = new Uint8Array(an.fftSize); tick = setInterval(() => { an.getByteTimeDomainData(buf); let mx = 0; for (const v of buf) mx = Math.max(mx, Math.abs(v - 128)); wave.push(Math.min(100, Math.round(mx / 128 * 140))); }, 200); } catch { /* no waveform: the message still works */ }
  mr.ondataavailable = e => { if (e.data.size) chunks.push(e.data); }; mr.start(); ch.rec = { mr, chunks, wave, stream, ac, tick, t0: Date.now(), type: mr.mimeType || type || 'audio/webm' };
  chDrawRec(); ch.rec.timer = setInterval(chDrawRec, 500);
}
function chRecEnd() { const r = ch.rec; if (!r) return; clearInterval(r.timer); clearInterval(r.tick); try { r.mr.state !== 'inactive' && r.mr.stop(); } catch {} r.stream.getTracks().forEach(t => t.stop()); try { r.ac && r.ac.close(); } catch {} ch.rec = null; const f = chq('#chform'); if (f) f.classList.remove('rec'); const b = chq('#chrecbar'); if (b) b.remove(); }
function chDrawRec() {
  const r = ch.rec, f = chq('#chform'); if (!r || !f) return; f.classList.add('rec'); let b = chq('#chrecbar');
  if (!b) { b = document.createElement('div'); b.id = 'chrecbar'; b.className = 'chrecbar'; b.innerHTML = `<button type="button" class="ibtn" id="chrx2" aria-label="Cancel recording">${icon('trash')}</button><span class="recdot"></span><span id="chrt">0:00</span><span class="grow"></span><button type="button" class="ibtn sgsend" id="chrs" aria-label="Send voice message">${icon('send')}</button>`; f.appendChild(b);
    b.querySelector('#chrx2').onclick = chRecEnd; b.querySelector('#chrs').onclick = chRecSend; }
  b.querySelector('#chrt').textContent = chDur((Date.now() - r.t0) / 1000);
}
async function chRecSend() {
  const r = ch.rec; if (!r) return; const to = ch.cur, secs = Math.round((Date.now() - r.t0) / 1000); if (secs < 1) return chRecEnd();
  const done = new Promise(ok => { r.mr.onstop = ok; }); try { r.mr.stop(); } catch {} await done; const blob = new Blob(r.chunks, { type: r.type }), wave = r.wave.slice(); chRecEnd();
  const bars = []; const n = 32; for (let i = 0; i < n; i++) { const seg = wave.slice(Math.floor(i * wave.length / n), Math.max(Math.floor(i * wave.length / n) + 1, Math.floor((i + 1) * wave.length / n))); bars.push(seg.length ? Math.max(...seg) : 20); }
  const ext = /mp4/.test(r.type) ? 'm4a' : /ogg/.test(r.type) ? 'ogg' : 'webm';
  try { const up = await chApi(`/upload?conv=${encodeURIComponent(to)}&name=${encodeURIComponent('Voice message.' + ext)}&voice=1&dur=${secs}&wave=${bars.join(',')}`, { method: 'POST', body: blob, headers: { 'content-type': r.type.split(';')[0] } }); await chPost('/send', { conv: to, files: [up.id] }); await chRefresh(); const l = chq('#chmsgs'); if (l) l.scrollTop = l.scrollHeight; }
  catch (e) { toast(e.message || 'Could not send the voice message'); }
}
// ---- emoji
const CH_EMOJI = '😀 😃 😄 😁 😆 😅 😂 🤣 😊 🙂 😉 😍 🥰 😘 😋 😎 🤗 🤔 😐 😴 😢 😭 😮 😱 😡 🥳 😇 🙏 👍 👎 👏 🙌 💪 👋 ❤️ 🧡 💛 💚 💙 💜 🔥 ⭐ ✨ 🎉 🎂 🎁 🍕 🍔 🍎 ☕ 🍪 🏠 🚗 ✈️ ☀️ 🌧️ ❄️ 🌈 🐶 🐱 🌸 ✅ ❌ ❓ 💯'.split(' ');
function chEmojiPanel() {
  const f = chq('#chform'), old = chq('#chemo'); if (old) return old.remove(); const box = document.createElement('div'); box.id = 'chemo'; box.className = 'chemo'; box.innerHTML = CH_EMOJI.map(e => `<button type="button" data-e="${e}">${e}</button>`).join(''); f.appendChild(box);
  box.onclick = e => { const b = e.target.closest('[data-e]'); if (!b) return; const ta = chq('#chtext'), pos = ta.selectionStart || ta.value.length; ta.value = ta.value.slice(0, pos) + b.dataset.e + ta.value.slice(ta.selectionEnd || pos); ta.selectionStart = ta.selectionEnd = pos + b.dataset.e.length; ta.dispatchEvent(new Event('input')); ta.focus(); };
}

// ---- from a message into the rest of the hub
function chMakeEvent(m) {
  const today = new Date(), d = today.getFullYear() + '-' + String(today.getMonth() + 1).padStart(2, '0') + '-' + String(today.getDate()).padStart(2, '0');
  const el = openSheet('Add to the calendar', 'From a message in Chat', `<form id="chef"><label for="chet">What</label><input type="text" id="chet" value="${esc(m.text.slice(0, 120))}" maxlength="200" required><label for="ched2">Day</label><input type="date" id="ched2" value="${d}" required>
    <label for="chetm">Time (leave empty for all day)</label><input type="time" id="chetm"><div class="err" id="chee"></div><div class="bar"><button class="btn ghost" type="button" id="chex" style="flex:1;justify-content:center">Cancel</button><button class="btn" style="flex:1;justify-content:center">Add</button></div></form>`);
  el.querySelector('#chex').onclick = closeSheet;
  el.querySelector('#chef').onsubmit = async e => { e.preventDefault(); try {
    const cals = await jfetch('/api/cal/list'), c = cals.find(x => x.local && !x.shared); if (!c) throw new Error('There is no calendar to add to'); const day = el.querySelector('#ched2').value, tm = el.querySelector('#chetm').value, allDay = !tm, end = tm ? new Date(new Date(day + 'T' + tm).getTime() + 3600e3) : null;
    const endStr = allDay ? day : day + 'T' + String(end.getHours()).padStart(2, '0') + ':' + String(end.getMinutes()).padStart(2, '0');
    await jfetch('/api/cal/event', { method: 'POST', headers: { 'content-type': 'application/json' }, body: JSON.stringify({ cal: c.id, fields: { title: el.querySelector('#chet').value, location: '', notes: 'From Chat (' + m.name + ')', allDay, start: allDay ? day : day + 'T' + tm, end: endStr, tz: Intl.DateTimeFormat().resolvedOptions().timeZone, repeat: 'none' } }) });
    closeSheet(); toast('Added to the calendar', { label: 'Open', run: () => { location.hash = '#/calendar'; } }); } catch (x) { el.querySelector('#chee').textContent = x.message; } };
}
/** From anywhere in the hub: "Share to Chat". Picks a chat and sends the text (with a link back to the thing). */
async function shareToChat(text) {
  if (!allowed('chat')) return toast('Chat is not turned on for you');
  let convs = []; try { convs = (await chApi('/convs')).convs.filter(c => !c.archived); } catch (e) { return toast(e.message); }
  const el = openSheet('Share to Chat', text.length > 90 ? text.slice(0, 90) + '…' : text, `<div class="list" style="max-height:50dvh;overflow:auto">${convs.map(c => `<button class="row" data-t="${esc(c.id)}"><span class="sgav" style="background:${sgColor(c.id)}">${c.type === 'group' ? icon('chat') : esc(sgInitial(c.name))}</span><span class="grow"><b>${esc(c.name)}</b></span></button>`).join('') || '<p class="empty">Start a chat first.</p>'}</div>`);
  el.querySelectorAll('[data-t]').forEach(b => b.onclick = async () => { closeSheet(); try { await chPost('/send', { conv: b.dataset.t, text }); toast('Shared', { label: 'Open', run: () => { location.hash = '#/chat/' + encodeURIComponent(b.dataset.t); } }); } catch (e) { toast(e.message); } });
}
// ---- settings: quiet hours, and the family announcement (admin)
async function chSettings() {
  let pr, an = null; try { [pr, an] = await Promise.all([chApi('/prefs'), chApi('/announcement')]); } catch (e) { return toast(e.message); }
  const q = pr.quiet, admin = ME && ME.role === 'admin';
  const el = openSheet('Chat settings', '', `<form id="chsf"><label class="row" style="cursor:pointer"><span class="grow"><b>Quiet hours</b><small style="white-space:normal">No phone alerts from Chat in these hours. Messages still show up in the app.</small></span><input type="checkbox" id="chqo"${q.on ? ' checked' : ''}></label>
    <div class="bar" style="gap:10px;flex-wrap:nowrap"><div style="flex:1"><label for="chqf">From</label><input type="time" id="chqf" value="${esc(q.from)}"></div><div style="flex:1"><label for="chqt">To</label><input type="time" id="chqt" value="${esc(q.to)}"></div></div>
    ${admin ? `<h2>Family announcement</h2><p class="sub" style="white-space:normal">Shown at the top of everyone's Home. Leave it empty and save to take it down.</p><textarea id="chan" rows="2" maxlength="300" placeholder="Dinner at 6">${esc(an ? an.text : '')}</textarea>` : ''}<div class="err" id="chse"></div>
    <div class="bar"><button class="btn ghost" type="button" id="chsx" style="flex:1;justify-content:center">Cancel</button><button class="btn" style="flex:1;justify-content:center">Save</button></div></form>`);
  el.querySelector('#chsx').onclick = closeSheet;
  el.querySelector('#chsf').onsubmit = async e => { e.preventDefault(); try { await chPost('/prefs', { quiet: { on: el.querySelector('#chqo').checked, from: el.querySelector('#chqf').value, to: el.querySelector('#chqt').value } }); if (admin) await chPost('/announcement', { text: el.querySelector('#chan').value }); closeSheet(); toast('Saved'); } catch (x) { el.querySelector('#chse').textContent = x.message; } };
}
/** Home: the family announcement, if there is one (each person can dismiss it). */
async function chAnnounceCard(el) {
  if (!el || !allowed('chat')) return; let a = null; try { a = await chApi('/announcement'); } catch { return; }
  let gone = ''; try { gone = localStorage.getItem('ch_ann_gone:' + (ME ? ME.id : '')) || ''; } catch {}
  if (!a || a.id === gone) { el.innerHTML = ''; return; }
  el.innerHTML = `<div class="annc"><span class="ic" style="background:var(--accent)">${icon('chat')}</span><span class="grow"><small>Family announcement · ${esc(a.by)}</small><b>${esc(a.text)}</b></span><button class="ibtn" id="ancx" aria-label="Dismiss">${icon('x')}</button></div>`;
  el.querySelector('#ancx').onclick = () => { try { localStorage.setItem('ch_ann_gone:' + (ME ? ME.id : ''), a.id); } catch {} el.innerHTML = ''; };
}

/** On a phone the open chat has to end above the mini player and the bottom bar, or the message box lands off screen: size it from what is really at the bottom. */
function chFit() {
  const m = chMounted() && ch.root.querySelector('.sgm'); if (!m || m.offsetParent === null) return;
  if (window.innerWidth >= 1024) { m.style.height = ''; return; }
  let bottom = window.visualViewport ? window.visualViewport.height : window.innerHeight;
  const top0 = m.getBoundingClientRect().top; // (look up from the screen's edge for the first spot that is page content, not the bottom bar or mini player)
  for (let y = Math.floor(bottom) - 2; y > top0 + 130; y -= 4) { const hit = document.elementsFromPoint(innerWidth / 2, y).find(e => !e.closest('.sgm')); const covers = hit && !hit.closest('#view'); if (!covers) { bottom = y + 4; break; } }
  const top = m.getBoundingClientRect().top; m.style.height = Math.max(260, Math.floor(bottom - top - 10)) + 'px';
}
window.addEventListener('resize', chFit); if (window.visualViewport) window.visualViewport.addEventListener('resize', chFit);
setInterval(chFit, 700);