'use strict';
// ---- Search: Seafile files + libraries and Plex music, all best-effort (a missing backend never blocks the others)
// Seafile: use the search index when the server has one; if it is missing OR comes back empty, scan file names library by library.
async function searchFiles(term, libs) {
  const enc = encodeURIComponent, lower = term.toLowerCase();
  let results = [], via = 'index';
  try { results = (await sf.req(`/api2/search/?q=${enc(term)}&per_page=20`)).results || []; } catch {}
  if (!results.length) { results = await walkSearch(libs, lower); via = 'scan'; }
  return { results, via, scanned: libs.filter(l => !l.encrypted).length };
}

// Plex: the server-wide search first; if that finds nothing, filter the artists and albums of the chosen music library directly.
async function searchMusic(term) {
  const enc = encodeURIComponent, lower = term.toLowerCase(), items = [];
  try {
    const mc = await px.get(`/hubs/search?query=${enc(term)}&limit=10`);
    for (const hub of mc.Hub || []) for (const m of hub.Metadata || []) if (['artist', 'album', 'track'].includes(m.type)) items.push(m);
  } catch {}
  if (!items.length) {
    const sec = await px.section(), big = '&X-Plex-Container-Start=0&X-Plex-Container-Size=3000&sort=titleSort';
    const [artists, albums] = await Promise.all([px.get(`/library/sections/${sec}/all?type=8${big}`), px.get(`/library/sections/${sec}/all?type=9${big}`)]);
    for (const a of artists.Metadata || []) if ((a.title || '').toLowerCase().includes(lower)) items.push({ ...a, type: 'artist' });
    for (const a of albums.Metadata || []) if (((a.title || '') + ' ' + (a.parentTitle || '')).toLowerCase().includes(lower)) items.push({ ...a, type: 'album' });
  }
  return items.slice(0, 16);
}

// Plex movies and shows (and episodes) from the server-wide search.
async function searchVideo(term) {
  const mc = await px.get(`/hubs/search?query=${encodeURIComponent(term)}&limit=12`), items = [];
  for (const hub of mc.Hub || []) for (const m of hub.Metadata || []) if (['movie', 'show', 'episode'].includes(m.type)) items.push(m);
  return items.slice(0, 24);
}

// Podgrab: the podcasts you follow, matched on title and author.
async function searchPodcasts(term) {
  const list = await jfetch('/api/podcast/podcasts'), lower = term.toLowerCase();
  return (Array.isArray(list) ? list : []).filter(s => ((pdF(s, 'title') || '') + ' ' + (pdF(s, 'author') || '')).toLowerCase().includes(lower)).slice(0, 12);
}

// The audiobook library, matched on title, author and series.
async function searchBooks(term) {
  const [data] = await Promise.all([jfetch('/api/ab/books'), abLoadProg()]), all = Array.isArray(data) ? data : (data.books || Object.values(data)), lower = term.toLowerCase();
  return all.filter(b => (abTitle(b) + ' ' + abAuthor(b) + ' ' + abSeries(b)).toLowerCase().includes(lower)).slice(0, 10);
}

function viewSearch() {
  $('#view').innerHTML = `<div class="wrap"><h1>Search</h1><input type="search" id="q" placeholder="Mail, chat, notes, tasks, events, files, music, recipes, contacts, books…" autocomplete="off" autocapitalize="off">
    <p class="sub" id="src" style="margin:8px 0 0"></p>
    <div class="bar" id="web"><a class="btn ghost" id="duckai" href="https://duck.ai/" target="_blank" rel="noopener">${icon('search')}Ask Duck.ai</a>
      <a class="btn ghost" id="ddg" href="https://duckduckgo.com/" target="_blank" rel="noopener">${icon('search')}Search the web</a></div>
    <div id="res"></div></div>`;
  const q = $('#q'); q.focus();
  let timer, seq = 0, plexSt = null;
  if (window.pendingSearch) { q.value = window.pendingSearch; window.pendingSearch = ''; setTimeout(() => q.oninput && q.oninput(), 0); }
  // One line that says what Search covers and what each source returned, with a link to sign in where a source needs it.
  const showSources = (r = {}) => {
    const el = $('#src'); if (!el) return;
    const link = (href, t) => `<a href="${href}" style="color:var(--accent)">${t}</a>`, bad = t => `<span style="color:var(--danger)">${esc(t)}</span>`;
    const part = (st, off, label) => st === undefined ? off : st.err ? bad('error: ' + st.err) : `✓${st.n !== undefined ? ' ' + st.n : ''}`;
    const filesOff = !sf.token() ? link('#/files', 'sign in to search files') : '✓';
    const musicOff = !plexSt || !plexSt.signedIn ? link('#/music', 'sign in to search music') : !plexSt.server ? link('#/music', 'choose a Plex server') : '✓';
    el.innerHTML = `Searching: Tasks ${part(r.tasks, '✓')} · Events ${part(r.events, '✓')} · Files ${part(r.files, filesOff)} · Music ${part(r.music, musicOff)} · Movies & TV ${part(r.video, musicOff)} · Podcasts ${part(r.pods, '✓')} · Audiobooks ${part(r.books, '✓')}${allowed('mail') && cfg.mail ? ' · Mail ' + part(r.mail, '✓') : ''}`;
  };
  jfetch('/api/plex/status').then(st => { plexSt = st; showSources(); }).catch(() => showSources());
  showSources();
  // Duck.ai and DuckDuckGo refuse to be shown inside other apps, so these hand the question over in a new tab.
  const webLinks = () => { const t = encodeURIComponent(q.value.trim()); $('#duckai').href = 'https://duck.ai/' + (t ? '?q=' + t : ''); $('#ddg').href = 'https://duckduckgo.com/' + (t ? '?q=' + t : ''); };
  q.oninput = () => { webLinks(); clearTimeout(timer); timer = setTimeout(() => runSearch(q.value.trim(), ++seq), 350); };
  async function runSearch(term, mySeq) {
    const res = $('#res');
    if (term.length < 2) { res.innerHTML = ''; showSources(); return; }
    res.innerHTML = '<p class="empty">Searching…</p>';
    const enc = encodeURIComponent, lower = term.toLowerCase();
    const hasSf = !!sf.token(), plexReady = !!(plexSt && plexSt.signedIn && plexSt.server);
    const libsP = hasSf ? sf.req('/api2/repos/') : Promise.reject(new Error('signed out'));
    const [libs, files, music, video, pods, books, ddg, hub, mailR, myBooks] = await Promise.allSettled([
      libsP,
      libsP.then(l => searchFiles(term, l)),
      plexReady ? searchMusic(term) : Promise.reject(new Error('not connected')),
      plexReady ? searchVideo(term) : Promise.reject(new Error('not connected')),
      allowed('podcast') ? searchPodcasts(term) : Promise.reject(new Error('not allowed')),
      allowed('audio') ? searchBooks(term) : Promise.reject(new Error('not allowed')),
      jfetch('/api/ddg?q=' + enc(term)),
      jfetch('/api/search?q=' + enc(term)),
      allowed('mail') && cfg.mail ? jfetch('/api/mail/messages?folder=inbox&q=' + enc(term)) : Promise.reject(new Error('not allowed')),
      allowed('read') ? jfetch('/api/read/list') : Promise.reject(new Error('not allowed')),
    ]);
    if (mySeq !== seq || !location.hash.startsWith('#/search')) return;
    const sec = (title, html) => html ? `<h2>${title}</h2><div class="list">${html}</div>` : '';
    const libHtml = libs.status === 'fulfilled' ? libs.value.filter(r => r.name.toLowerCase().includes(lower)).map(r =>
      `<a class="row" href="#/files/${enc(r.id)}"><span class="ic" style="background:#2f9e6e">${icon('files')}</span><span class="grow"><b>${esc(r.name)}</b><small>Library</small></span></a>`).join('') : '';
    const found = files.status === 'fulfilled' ? files.value.results : [];
    const fileHtml = found.map(f => {
      const parent = f.fullpath.slice(0, f.fullpath.lastIndexOf('/')) || '/';
      return f.is_dir ? `<a class="row" href="#/files/${enc(f.repo_id)}${f.fullpath.split('/').filter(Boolean).map(x => '/' + enc(x)).join('')}"><span class="ic" style="background:#e0a82b">${icon('files')}</span><span class="grow"><b>${esc(f.name)}</b><small>${esc(f.repo_name || '')} ${esc(f.fullpath)}</small></span></a>`
        : `<button class="row" data-f="${esc(JSON.stringify([f.repo_id, f.fullpath, f.name, parent]))}"><span class="ic" style="background:#6a7280">${icon('file')}</span><span class="grow"><b>${esc(f.name)}</b><small>${esc(f.repo_name || '')} ${esc(parent)}</small></span></button>`;
    }).join('');
    let musicHtml = '';
    for (const m of music.status === 'fulfilled' ? music.value : []) {
      if (m.type === 'artist') musicHtml += `<a class="row" href="#/music/artist/${m.ratingKey}"><img class="art" style="width:40px;height:40px;border-radius:50%" alt="" src="${px.art(m.thumb, 80)}"><span class="grow"><b>${esc(m.title)}</b><small>Artist</small></span></a>`;
      else if (m.type === 'album') musicHtml += `<a class="row" href="#/music/album/${m.ratingKey}"><img class="art" style="width:40px;height:40px;border-radius:8px" alt="" src="${px.art(m.thumb, 80)}"><span class="grow"><b>${esc(m.title)}</b><small>Album · ${esc(m.parentTitle || '')}</small></span></a>`;
      else if (m.type === 'track') { const tr = mapTrack(m, {}); if (tr) musicHtml += `<button class="row" data-t="${esc(JSON.stringify(tr))}"><img class="art" style="width:40px;height:40px;border-radius:8px" alt="" src="${px.art(m.thumb || m.parentThumb, 80)}"><span class="grow"><b>${esc(m.title)}</b><small>Track · ${esc(m.grandparentTitle || '')}</small></span></button>`; }
    }
    const videoHtml = (video.status === 'fulfilled' ? video.value : []).map(m => vdCard(m)).join('');
    const podHtml = (pods.status === 'fulfilled' ? pods.value : []).map(s => `<a class="row" href="#/podcast/show/${enc(pdId(s))}"><img class="art" style="width:40px;height:40px;border-radius:8px" alt="" src="${pdImg('podcasts', s)}" onerror="this.style.visibility='hidden'"><span class="grow"><b>${esc(pdF(s, 'title'))}</b><small>Podcast${pdF(s, 'author') ? ' · ' + esc(pdF(s, 'author')) : ''}</small></span></a>`).join('');
    const bookHtml = (books.status === 'fulfilled' ? books.value : []).map(b => `<a class="row" href="#/audio" data-book="${esc(abId(b))}"><img class="art" style="width:40px;height:40px;border-radius:8px" alt="" src="${abCover(b)}" onerror="this.style.visibility='hidden'"><span class="grow"><b>${esc(abTitle(b))}</b><small>Audiobook${abAuthor(b) ? ' · ' + esc(abAuthor(b)) : ''}</small></span></a>`).join('');
    const mailHtml = (mailR.status === 'fulfilled' ? mailR.value.items || [] : []).slice(0, 8).map(m => `<a class="row" href="#/mail/m/${enc(m.id)}"><span class="ic" style="background:#d4392f">${icon('mail')}</span><span class="grow"><b>${esc(m.subject)}</b><small>${esc((m.from && (m.from.name || m.from.address)) || '')} · ${esc(new Date(m.date).toLocaleDateString())}</small></span></a>`).join('');
    const d = ddg.status === 'fulfilled' ? ddg.value : {};
    const card = (d.text || d.answer) ? `<div class="card2" style="padding:14px;margin-top:14px;display:flex;gap:12px;align-items:flex-start">
      ${d.image ? `<img alt="" src="${esc(stOk(d.image))}" referrerpolicy="no-referrer" style="width:72px;height:72px;object-fit:cover;border-radius:10px;flex:none">` : ''}
      <div style="min-width:0"><small style="color:var(--muted)">From DuckDuckGo${d.source ? ' · ' + esc(d.source) : ''}</small>
      ${d.heading ? `<div style="font-weight:700;margin-top:2px">${esc(d.heading)}</div>` : ''}${d.answer ? `<div style="font-size:18px;margin-top:2px">${esc(d.answer)}</div>` : ''}
      ${d.text ? `<p style="margin:4px 0 0;font-size:14px">${esc(d.text)}</p>` : ''}${d.url ? `<a href="${esc(d.url)}" target="_blank" rel="noopener" style="color:var(--accent);font-size:14px">Read more</a>` : ''}</div></div>` : '';
    const h = hub.status === 'fulfilled' ? hub.value : { tasks: [], events: [], errors: [] };
    // the family parts: notes, chat, contacts, chores, recipes, and the books on your shelf
    const row = (href, color, ic, title, sub) => `<a class="row" href="${href}"><span class="ic" style="background:${color}">${icon(ic)}</span><span class="grow"><b>${esc(title)}</b><small style="white-space:normal">${esc(sub)}</small></span></a>`;
    const myBookHtml = (myBooks.status === 'fulfilled' && Array.isArray(myBooks.value) ? myBooks.value : []).filter(b => ((b.title || '') + ' ' + (b.author || '')).toLowerCase().includes(lower)).slice(0, 8).map(b => row('#/read/open/' + enc(b.id), '#2b8a5e', 'book', b.title, b.author || 'Your books')).join('');
    const famHtml = sec('Notes and lists', (h.notes || []).map(n => row('#/notes/' + enc(n.id), '#e5b800', n.type === 'list' ? 'check' : 'doc', n.title, n.share + (n.snippet ? ' · ' + n.snippet : ''))).join(''))
      + sec('Chat', (h.chat || []).map(c => row('#/chat/' + enc(c.conv), '#2aa6a0', 'chat', c.convName, c.msg.name + ': ' + c.msg.text)).join(''))
      + sec('Contacts', (h.contacts || []).map(c => row('#/contacts/c/' + enc(c.id), '#5b8def', 'people', c.name, [c.org, c.email, c.phone].filter(Boolean).join(' · '))).join(''))
      + sec('Chores', (h.chores || []).map(c => row('#/chores', '#2f9e6e', 'check', c.title, [c.repeat, c.who, c.points ? c.points + ' pts' : ''].filter(Boolean).join(' · '))).join(''))
      + sec('Recipes', (h.recipes || []).map(r => row('#/recipes/r/' + enc(r.slug), '#e0742b', 'chef', r.name, r.minutes ? r.minutes + ' min' : 'Recipe')).join(''))
      + sec('Your books', myBookHtml);
    evStore.length = 0;
    const taskHtml = (h.tasks || []).map(t => { const du = dueInfo(t.due);
      return `<button class="row" data-tl="${esc(t.list)}"><span class="ic" style="background:#4f7cff">${icon('check')}</span><span class="grow"><b${t.done ? ' style="text-decoration:line-through;color:var(--muted)"' : ''}>${esc(t.title)}</b><small>${esc(t.listName)}${du ? ' · ' + esc(du.text) : ''}${t.done ? ' · done' : ''}</small></span></button>`; }).join('');
    const eventHtml = (h.events || []).map(e => { const i = evStore.push(e) - 1, dt = e.allDay ? new Date(e.start + 'T00:00:00') : new Date(e.start);
      return `<button class="row" data-ei="${i}" style="text-align:left"><span class="dot" style="background:${esc(e.color)}"></span><span class="grow"><b>${esc(e.title)}</b><small>${esc(dt.toLocaleDateString([], { weekday: 'short', month: 'short', day: 'numeric', year: 'numeric' }))}${e.allDay ? ' · all day' : ' · ' + esc(fmtTime(e.start))} · ${esc(e.cal)}</small></span>${e.editable ? icon('chev', 'chev') : ''}</button>`; }).join('');
    // what each source did, so an empty screen always has an explanation
    showSources({
      tasks: hub.status === 'fulfilled' ? { n: (h.tasks || []).length } : { err: hub.reason && hub.reason.message },
      events: hub.status === 'fulfilled' ? { n: (h.events || []).length } : { err: hub.reason && hub.reason.message },
      files: !hasSf ? undefined : files.status === 'fulfilled' ? { n: found.length + libHtml.split('class="row"').length - 1 } : { err: (files.reason && files.reason.message) || (libs.reason && libs.reason.message) || 'failed' },
      music: !plexReady ? undefined : music.status === 'fulfilled' ? { n: music.value.length } : { err: music.reason && music.reason.message },
      pods: !allowed('podcast') ? undefined : pods.status === 'fulfilled' ? { n: pods.value.length } : { err: pods.reason && pods.reason.message },
      books: !allowed('audio') ? undefined : books.status === 'fulfilled' ? { n: books.value.length } : { err: books.reason && books.reason.message },
      mail: !(allowed('mail') && cfg.mail) ? undefined : mailR.status === 'fulfilled' ? { n: (mailR.value.items || []).length } : { err: mailR.reason && mailR.reason.message },
      video: !plexReady ? undefined : video.status === 'fulfilled' ? { n: video.value.length } : { err: video.reason && video.reason.message },
    });
    const notes = [...(h.errors || [])].map(e => `<p class="sub">${esc(e)}</p>`).join('');
    const linkHtml = allowed('links') ? allLinks().filter(l => (l.title + ' ' + l.url + ' ' + (l.group || '')).toLowerCase().includes(lower)).slice(0, 8).map(l => `<a class="row" href="${esc(safeUrl(l.url))}" target="_blank" rel="noopener noreferrer"><span class="ic" style="background:${linkColor(l)}">${icon('link')}</span><span class="grow"><b>${esc(l.title || l.url)}</b><small>${esc(new URL(safeUrl(l.url)).host)}${l.group ? ' · ' + esc(l.group) : ''}</small></span></a>`).join('') : '';
    res.innerHTML = card + famHtml + sec('Mail', mailHtml) + sec('Tasks', taskHtml) + sec('Links', linkHtml) + sec('Events', eventHtml) + sec('Libraries', libHtml) + sec('Files', fileHtml) + sec('Music', musicHtml) + (podHtml ? sec('Podcasts', podHtml) : '') + (bookHtml ? sec('Audiobooks', bookHtml) : '') + (videoHtml ? `<h2>Movies & TV</h2><div class="vgrid">${videoHtml}</div>` : '') + notes;
    if (!famHtml && !taskHtml && !linkHtml && !eventHtml && !libHtml && !fileHtml && !musicHtml && !videoHtml && !podHtml && !bookHtml && !mailHtml && !card) res.innerHTML = '<p class="empty">No results. The line above shows what was searched.</p>' + notes;
    res.querySelectorAll('button[data-f]').forEach(b => b.onclick = () => { const [r, p, n, dd] = JSON.parse(b.dataset.f); openFile(r, p, n, dd); });
    res.querySelectorAll('a[data-book]').forEach(a => a.onclick = e => { e.preventDefault(); const b = (books.value || []).find(x => abId(x) === a.dataset.book); if (b) abSheet(b); });
    res.querySelectorAll('button[data-t]').forEach(b => b.onclick = () => playQueue([JSON.parse(b.dataset.t)], 0));
    res.querySelectorAll('button[data-tl]').forEach(b => b.onclick = () => { store.set('task_list', b.dataset.tl); location.hash = '#/tasks'; });
  }
}