static/app_v2.js

// === VNEWS Frontend v2 - Optimized for speed ===

// === LOAD HOME - Fast: immediate shell + parallel fetch ===
function _fetchWithTimeout(url, ms){
  return new Promise((resolve,reject)=>{
    const ctrl=new AbortController();
    const tid=setTimeout(()=>ctrl.abort(),ms);
    fetch(url,{signal:ctrl.signal}).then(r=>{
      clearTimeout(tid);
      if(!r.ok) return reject(new Error('HTTP '+r.status));
      return r.json();
    }).then(d=>resolve(d)).catch(e=>{clearTimeout(tid);reject(e);});
  });
}

async function loadHome(){
  const homeEl = document.getElementById('view-home');
  if(!homeEl) return;

  // Build shell IMMEDIATELY — no skeleton, no delay
  homeEl.innerHTML =
    '<div id="home-featured-area"></div>'
    +'<div class="ai-compose"><div class="ai-compose-title">🤖 AI viết bài</div><div class="ai-compose-row"><input id="topic-input" placeholder="Nhập chủ đề..."><button onclick="searchTopic()">Tìm nguồn</button></div><div class="ai-compose-row"><input id="url-input" placeholder="Dán URL bài viết..."><button class="secondary" onclick="rewriteUrl()">Rewrite</button></div><div id="hot-topics" class="hot-topic-row"></div></div>'
    +'<div id="hashtag-box"></div>'
    +'<div class="ls-section"><div class="ls-header"><h3>⚽ Livescore</h3></div><div class="ls-tabs"><span class="ls-tab active" data-tab="today" onclick="loadLivescore(\'today\')">📅 Hôm nay</span><span class="ls-tab" data-tab="live" onclick="loadLivescore(\'live\')">🔴 Live</span><span class="ls-tab" data-tab="incoming" onclick="loadLivescore(\'incoming\')">⏰ Sắp tới</span><span class="ls-tab" data-tab="results" onclick="loadLivescore(\'results\')">✅ Kết quả</span><span class="ls-tab" data-tab="bxh_nha" onclick="loadLivescore(\'bxh_nha\')">🏆 NHA</span><span class="ls-tab" data-tab="bxh_laliga" onclick="loadLivescore(\'bxh_laliga\')">🏆 La Liga</span></div><div class="ls-content" id="ls-content"><div class="loading">Đang tải...</div></div></div>'
    +'<div id="wc2026-live-section" class="wc2026-section"><div class="wc-header"><h2>🏆 World Cup 2026</h2><span class="wc-live-badge">● LIVE</span></div><div class="wc-tabs"><span class="wc-tab active" onclick="switchWCTab(\'news\')">📰 Tin tức</span><span class="wc-tab" onclick="switchWCTab(\'fixtures\')">📅 Lịch thi đấu</span><span class="wc-tab" onclick="switchWCTab(\'standings\')">🏆 BXH</span><span class="wc-tab" onclick="switchWCTab(\'highlights\')">🎬 Highlight</span><span class="wc-tab" onclick="switchWCTab(\'stats\')">📊 Thống kê</span></div><div class="wc-content" id="wc-content"><div class="loading">Đang tải World Cup 2026...</div></div></div>'
    +'<div id="home-after-wc"></div>';

  const afterEl = homeEl.querySelector('#home-after-wc');

  // Start critical loads immediately
  loadLivescore('today');
  loadHotTopics();

  // Fetch all data in parallel with shorter timeouts
  const [featuredData, shortsData, wallData, hlLeagues, aiData, wcData] = await Promise.allSettled([
    _fetchWithTimeout('/api/livescore/featured', 5000),
    _fetchWithTimeout('/api/shorts', 8000),
    _fetchWithTimeout('/api/wall', 5000),
    _fetchWithTimeout('/api/highlights/leagues', 10000),
    _fetchWithTimeout('/api/genk_ai', 8000),
    _fetchWithTimeout('/api/wc2026', 8000),
  ]).then(results => results.map(r => r.status === 'fulfilled' ? r.value : null));

  // Render featured match
  if(featuredData && featuredData.home){
    const sc=featuredData.status==='live'?'':'upcoming';
    const st=featuredData.status==='live'?`🔴 ${featuredData.minute||'LIVE'}`:`⏰ ${featuredData.time}`;
    const area=document.getElementById('home-featured-area');
    if(area) area.innerHTML=`<div class="featured-match" onclick="openMatch('${featuredData.event_id}')"><div class="fm-league">${featuredData.league}</div><div class="fm-teams"><div class="fm-team"><img src="${featuredData.home_logo}" onerror="this.style.display='none'"><span>${featuredData.home}</span></div><div class="fm-score">${featuredData.score||'VS'}</div><div class="fm-team"><img src="${featuredData.away_logo}" onerror="this.style.display='none'"><span>${featuredData.away}</span></div></div><div class="fm-status ${sc}">${st}</div></div>`;
  }

  // Store globally
  _shortsData = shortsData || [];
  _wallPosts = (wallData && wallData.posts) || [];
  _hlLeagueData = hlLeagues || {};
  _wc2026Data = wcData;

  // Render WC if data arrived
  if(wcData) switchWCTab('news');

  // Render sections into the after-wc area
  _renderShortsIn(afterEl);
  _renderWallIn(afterEl);
  _renderHLIn(afterEl);
  if(aiData && aiData.length) _renderSlidesIn('ai-articles','Ứng dụng AI','🤖',aiData,afterEl);
}

function _renderSlidesIn(key, label, emoji, vids, afterEl){
  if(!vids||!vids.length||!afterEl) return;
  const wrap=document.createElement('div');
  wrap.className='slider-wrap';
  let h=`<div class="slider-header"><span class="slider-label">${emoji} ${label}</span></div><div class="slider-track">`;
  const isHL = key==='world-cup'||key==='premier-league'||key==='champions-league'||key==='la-liga'||key==='serie-a'||key==='bundesliga'||key==='friendly';
  vids.slice(0,isHL?8:12).forEach((a,i)=>{
    if(isHL){
      h+=`<div class="slider-item" onclick="openHighlightFeed('${key}',${i})"><div class="slider-thumb">${a.img?`<img src="${a.img}" loading="lazy">`:''}<div class="card-play">▶</div></div><div class="slider-title">${esc(a.title)}</div></div>`;
    } else {
      h+=`<div class="slider-item" onclick="readArticle('${esc(a.link)}')"><div class="slider-thumb">${a.img?`<img src="${a.img}" loading="lazy">`:''}</div><div class="slider-title">${esc(a.title)}</div></div>`;
    }
  });
  h+='</div>';
  wrap.innerHTML=h;
  afterEl.parentNode.insertBefore(wrap, afterEl);
}

function _renderShortsIn(afterEl){
  if(!_shortsData||!_shortsData.length||!afterEl) return;
  const mixed=interleaveShorts(_shortsData);
  if(!mixed.length) return;
  const wrap=document.createElement('div');
  wrap.className='slider-wrap';
  let h=`<div class="slider-header"><span class="slider-label">📱 Shorts Dân trí & SKĐS</span><span class="slider-note">Mới nhất · xen kẽ</span></div><div class="slider-track">`;
  mixed.slice(0,30).forEach((a,i)=>{
    const badge=a.channel==='baosuckhoedoisongboyte'?'SKĐS':'Dân trí';
    h+=`<div class="slider-item shorts-item" onclick="openYTShortsFeed(${i})"><div class="slider-thumb shorts-thumb">${a.img?`<img src="${a.img}" loading="lazy">`:''}<div class="card-play">▶</div></div><div class="slider-title"><span style="color:#f0c040;font-size:8px">${badge}</span> ${esc(a.title)}</div></div>`;
  });
  h+='</div>';wrap.innerHTML=h;
  afterEl.parentNode.insertBefore(wrap,afterEl);
}

function _renderWallIn(afterEl){
  if(!_wallPosts||!_wallPosts.length||!afterEl) return;
  const posts=_wallPosts;
  const aiShorts=posts.filter(p=>p.video);
  if(aiShorts.length){
    const wrap=document.createElement('div');
    wrap.className='slider-wrap';
    let h='<div class="slider-header"><span class="slider-label">🎬 Short AI</span></div><div class="slider-track">';
    aiShorts.slice(0,20).forEach((p,i)=>{h+=`<div class="slider-item shorts-item" onclick="openShortAIFeed(${i})"><div class="slider-thumb shorts-thumb"><video src="${p.video}" muted preload="metadata"></video><div class="card-play">▶</div></div><div class="slider-title">${esc(p.title)}</div></div>`;});
    h+='</div>';wrap.innerHTML=h;
    afterEl.parentNode.insertBefore(wrap,afterEl);
  }
  const wrap=document.createElement('div');
  wrap.className='slider-wrap';wrap.id='ai-wall-wrap';
  let h='<div class="slider-header"><span class="slider-label">🧱 Tường AI</span></div><div class="slider-track" id="ai-wall-track">';
  posts.slice(0,20).forEach((p,i)=>{h+=makeWallItem(p,i);});
  h+='</div>';wrap.innerHTML=h;
  afterEl.parentNode.insertBefore(wrap,afterEl);
}

function _renderHLIn(afterEl){
  if(!_hlLeagueData||Object.keys(_hlLeagueData).length===0||!afterEl) return;
  const HL_CONFIG={"world-cup":{name:"World Cup 2026",emoji:"🌍"},"premier-league":{name:"Premier League",emoji:"🏴"},"champions-league":{name:"Champions League",emoji:"⭐"},"la-liga":{name:"La Liga",emoji:"🇪🇸"},"serie-a":{name:"Serie A",emoji:"🇮🇹"},"bundesliga":{name:"Bundesliga",emoji:"🇩🇪"},"friendly":{name:"Giao hữu",emoji:"🤝"}};
  for(const[key,cfg] of Object.entries(HL_CONFIG)){
    const vids=_hlLeagueData[key];
    if(!vids||!vids.length) continue;
    _renderSlidesIn(key,cfg.name,cfg.emoji,vids,afterEl);
  }
}

// === WALL POST HELPERS ===
function makeWallItem(p,i){
  const hasVideo = p.video && p.video.length > 0;
  const thumbContent = p.img
    ? `<img src="${esc(p.img)}" loading="lazy" onerror="this.style.display='none'">`
    : (hasVideo ? `<video src="${esc(p.video)}" muted></video>` : '');
  const videoBadge = hasVideo ? `<div class="wall-video-badge">🎬</div>` : '';
  const videoBtn = hasVideo
    ? `<button class="wall-btn-video" onclick="event.stopPropagation();openShortAIFeed(${i})">▶ Xem Short</button>`
    : `<button class="wall-btn-make" onclick="event.stopPropagation();makeShortVideo('${esc(p.id||i)}',this)">🎬 Tạo Video</button>`;
  return `<div class="wall-item" id="wall-item-${esc(p.id||i)}"><div class="wall-thumb">${thumbContent}${videoBadge}</div><div class="wall-title">${esc(p.title)}</div><div class="wall-text">${esc((p.text||'').slice(0,180))}</div><div class="wall-actions"><button class="primary" onclick="readWallPost(${i})">Xem</button>${videoBtn}</div></div>`;
}

async function makeShortVideo(postId, btn, voice, speed){
  if(!postId)return;
  const origText = btn ? btn.textContent : '🎬 Tạo Video';
  if(btn){btn.disabled=true;btn.textContent='⏳ Đang tạo...';}
  toast('⏳ Đang tạo video shorts...');
  try{
    let url = '/api/ai/short/'+encodeURIComponent(postId);
    const params = [];
    if(voice) params.push('voice='+encodeURIComponent(voice));
    if(speed) params.push('speed='+encodeURIComponent(speed));
    if(params.length) url += '?' + params.join('&');
    const r = await fetch(url, {method:'POST'});
    const j = await r.json();
    if(!r.ok || j.error) throw new Error(j.error||'Lỗi tạo video');
    toast('✅ Đã tạo video shorts!');
    const p = _wallPosts.find(x => String(x.id) === String(postId));
    if(p){
      p.video = j.video;
      const itemId = 'wall-item-'+postId;
      const el = document.getElementById(itemId);
      if(el){
        const idx = _wallPosts.indexOf(p);
        el.outerHTML = makeWallItem(p, idx);
        const newEl = document.getElementById(itemId);
        if(newEl) newEl.className = 'wall-item wall-item-new';
      }
    }
    refreshShortAISlider();
  }catch(e){
    toast('❌ '+e.message);
    if(btn){btn.disabled=false;btn.textContent=origText;}
  }
}

function refreshShortAISlider(){
  const aiShorts = _wallPosts.filter(p=>p.video);
  let shortAISection = document.getElementById('short-ai-section');
  if(aiShorts.length === 0){
    if(shortAISection) shortAISection.remove();
    return;
  }
  if(shortAISection){
    const track = shortAISection.querySelector('.slider-track');
    if(track){
      let h = '';
      aiShorts.slice(0,20).forEach((p,i)=>{
        h+=`<div class="slider-item shorts-item" onclick="openShortAIFeed(${i})"><div class="slider-thumb shorts-thumb"><video src="${esc(p.video)}" muted preload="metadata"></video><div class="card-play">▶</div></div><div class="slider-title">${esc(p.title)}</div></div>`;
      });
      track.innerHTML = h;
    }
  }
}

function prependWallPost(post){
  _wallPosts.unshift(post);
  const track=document.getElementById('ai-wall-track');
  const wrap=document.getElementById('ai-wall-wrap');
  const homeEl=document.getElementById('view-home');
  if(!track||!wrap){
    if(homeEl){
      let insertBefore=homeEl.querySelector('.slider-wrap');
      const newWrap=document.createElement('div');
      newWrap.className='slider-wrap';
      newWrap.id='ai-wall-wrap';
      newWrap.innerHTML=`<div class="slider-header"><span class="slider-label">🧱 Tường AI</span></div><div class="slider-track" id="ai-wall-track">${makeWallItem(post,0)}</div>`;
      if(insertBefore) homeEl.insertBefore(newWrap,insertBefore);
      else homeEl.appendChild(newWrap);
      const firstItem=newWrap.querySelector('.wall-item');
      if(firstItem)firstItem.className='wall-item wall-item-new';
    }
    return;
  }
  const div=document.createElement('div');
  div.className='wall-item wall-item-new';
  div.id='wall-item-'+(post.id||'new-'+Date.now());
  const hasVideo = post.video && post.video.length > 0;
  const thumbContent = post.img
    ? `<img src="${esc(post.img)}" loading="lazy" onerror="this.style.display='none'">`
    : (hasVideo ? `<video src="${esc(post.video)}" muted></video>` : '');
  const videoBadge = hasVideo ? `<div class="wall-video-badge">🎬</div>` : '';
  const videoBtn = hasVideo
    ? `<button class="wall-btn-video" onclick="event.stopPropagation();openShortAIFeed(0)">▶ Xem Short</button>`
    : `<button class="wall-btn-make" onclick="event.stopPropagation();makeShortVideo('${esc(post.id)}',this)">🎬 Tạo Video</button>`;
  div.innerHTML=`<div class="wall-thumb">${thumbContent}${videoBadge}</div><div class="wall-title">${esc(post.title)}</div><div class="wall-text">${esc((post.text||'').slice(0,180))}</div><div class="wall-actions"><button class="primary" onclick="readWallPost(0)">Xem</button>${videoBtn}</div>`;
  track.prepend(div);
  track.scrollTo({left:0,behavior:'smooth'});
  if(hasVideo) refreshShortAISlider();
}

// === REST OF FUNCTIONS ===
let _shortsData=[];
let _wallPosts=[];
let _currentView='home';
let _currentEventId=null;
let _currentMatchUrl=null;
function interleaveShorts(shorts){const dt=shorts.filter(s=>s.channel==='baodantri7941');const sk=shorts.filter(s=>s.channel==='baosuckhoedoisongboyte');const result=[];let i=0,j=0;while(i<dt.length||j<sk.length){if(i<dt.length)result.push(dt[i++]);if(j<sk.length)result.push(sk[j++]);}return result;}
let _htPage=0,_htTopic='';
async function loadHotTopics(){const j=await fetch('/api/hot_topics').then(r=>r.json()).catch(()=>({topics:[]}));const el=document.getElementById('hot-topics');if(!el)return;el.innerHTML=(j.topics||[]).slice(0,18).map(t=>{const topicText=t.topic||t.label.replace(/^#/,'');return`<button class="hot-chip" onclick="searchTopic('${topicText.replace(/'/g,"\\'")}')">${esc(t.label)}</button>`;}).join('');if(j.topics&&j.topics[0]){const firstTopic=j.topics[0].topic||j.topics[0].label.replace(/^#/,'');setTimeout(()=>searchTopic(firstTopic),800);}}
function searchTopic(topic){if(!topic){topic=document.getElementById('topic-input')?.value.trim();if(!topic){alert('Nhập chủ đề');return;}}document.getElementById('topic-input').value='';_htTopic=topic;_htPage=0;showHashtagSources(topic,0);}
async function showHashtagSources(topic,page){const box=document.getElementById('hashtag-box');if(!box)return;if(page===0)box.innerHTML=`<div class="hashtag-sources"><h3>🔍 ${esc(topic)}</h3><div class="hashtag-loading"><div class="hashtag-spinner"></div>Đang tìm...</div></div>`;try{const r=await fetch(`/api/hashtag/sources?topic=${encodeURIComponent(topic)}&page=${page}`);const j=await r.json();const sources=j.sources||[];if(!sources.length&&page===0){box.innerHTML=`<div class="hashtag-sources"><h3>🔍 ${esc(topic)}</h3><div style="color:#888;padding:8px">Không tìm được bài viết liên quan</div></div>`;return;}let h='';if(page===0)h=`<div class="hashtag-sources"><h3>🔍 ${esc(topic)} <span style="font-size:10px;color:#888">(${j.total} bài từ 8 nguồn)</span></h3><div id="ht-list">`;sources.forEach((s,i)=>{const idx=page*8+i;h+=`<div class="hashtag-src-item" onclick="readArticle('${esc(s.url)}')"><div class="hashtag-src-img" id="ht-img-${idx}"></div><div class="hashtag-src-text"><div class="hashtag-src-title">${esc(s.title)}</div><div class="hashtag-src-via">${esc(s.via||'')}</div></div></div>`;});if(page===0){h+=`</div><button class="hashtag-rewrite-btn" onclick="rewriteHashtag('${esc(topic).replace(/'/g,"\\'")}')">🤖 Rewrite AI tổng hợp & đăng tường</button>`;if(j.has_more)h+=`<button class="hashtag-load-more" id="ht-more" onclick="loadMoreHashtag()">Tải thêm ▼</button>`;h+=`</div>`;box.innerHTML=h;}else{document.getElementById('ht-list')?.insertAdjacentHTML('beforeend',h);const btn=document.getElementById('ht-more');if(btn){if(!j.has_more)btn.remove();else{btn.disabled=false;btn.textContent='Tải thêm ▼';}}}sources.forEach((s,i)=>{const idx=page*8+i;if(!s.url)return;fetch('/api/article?url='+encodeURIComponent(s.url)).then(r=>r.json()).then(d=>{if(d&&(d.og_image||d.img)){const el=document.getElementById('ht-img-'+idx);if(el)el.innerHTML=`<img src="${esc(d.og_image||d.img)}" onerror="this.style.display='none'">`;}}).catch(()=>{});});}catch(e){box.innerHTML=`<div class="hashtag-sources"><h3>🔍 ${esc(topic)}</h3><div style="color:#e74c3c;padding:8px">Lỗi: ${esc(e.message)}</div></div>`;}}
function loadMoreHashtag(){_htPage++;const btn=document.getElementById('ht-more');if(btn){btn.disabled=true;btn.textContent='Đang tải...';}showHashtagSources(_htTopic,_htPage);}
async function rewriteHashtag(topic){const btn=event?.target;if(btn){btn.disabled=true;btn.textContent='Đang tổng hợp...';}try{const r=await fetch('/api/topic_post',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({topic})});const j=await r.json();if(!r.ok||j.error)throw new Error(j.error||'Lỗi');toast('✅ Đã đăng Tường AI!');if(btn)btn.textContent='✅ Đăng thành công!';if(j.post)prependWallPost(j.post);}catch(e){toast('❌ '+e.message);if(btn){btn.disabled=false;btn.textContent='🤖 Rewrite AI';}}}
async function loadLivescore(tab){document.querySelectorAll('.ls-tab').forEach(t=>t.classList.remove('active'));document.querySelector(`.ls-tab[data-tab="${tab}"]`)?.classList.add('active');const el=document.getElementById('ls-content');if(!el)return;el.innerHTML='<div class="loading">Đang tải...</div>';let ep='/api/livescore/'+tab;if(tab.startsWith('bxh_'))ep='/api/livescore/standings/'+tab.replace('bxh_','');try{const r=await fetch(ep);const d=await r.json();el.innerHTML=d.html&&d.html.length>50?d.html:'<div class="loading">Không có dữ liệu</div>';bindMatchClicks(el);}catch(e){el.innerHTML='<div class="loading">Lỗi</div>';}}
function bindMatchClicks(el){
  el.querySelectorAll('.match-detail').forEach(md=>{
    md.style.cursor='pointer';
    md.addEventListener('click',function(e){
      const statusA=this.querySelector('.status a');
      const teamA=this.querySelector('.teams a[href*="/tran-dau/"]');
      const a = statusA || teamA;
      if(a){
        e.preventDefault();
        e.stopPropagation();
        const href=a.getAttribute('href')||'';
        const m=href.match(/\/tran-dau\/(\d+)\//);
        if(m){
          const fullUrl=href.startsWith('http')?href:'https://bongda.com.vn'+href;
          openMatch(m[1],fullUrl);
        }
      }
    });
  });
  el.querySelectorAll('a').forEach(a=>{
    a.addEventListener('click',e=>{e.preventDefault();e.stopPropagation()});
  });
}
function openMatch(id,url){if(!id)return;_currentEventId=id;if(url)_currentMatchUrl=url;document.getElementById('match-overlay').classList.add('active');document.body.style.overflow='hidden';loadMatchTab('detail')}
function closeMatch(){document.getElementById('match-overlay').classList.remove('active');document.body.style.overflow=''}
async function loadMatchTab(tab){document.querySelectorAll('.mo-tab').forEach(t=>t.classList.remove('active'));document.querySelectorAll('.mo-tab').forEach(t=>{if((tab==='comm'&&t.textContent==='Diễn biến')||(tab==='stats'&&t.textContent==='Thống kê')||(tab==='detail'&&t.textContent.includes('Chi tiết')))t.classList.add('active')});const el=document.getElementById('mo-body');if(!el)return;el.innerHTML='<div class="loading">Đang tải...</div>';try{let apiUrl;if(tab==='stats')apiUrl=`/api/match/${_currentEventId}/stats`;else if(tab==='comm')apiUrl=`/api/match/${_currentEventId}/commentaries`;else{apiUrl=`/api/match/${_currentEventId}/detail`;if(_currentMatchUrl)apiUrl+='?url='+encodeURIComponent(_currentMatchUrl)}const r=await fetch(apiUrl);if(!r.ok){el.innerHTML='<div class="loading">Lỗi máy chủ ('+r.status+')</div>';return}const d=await r.json();if(d.error){el.innerHTML='<div class="loading">'+esc(d.error)+'</div>';return}if(tab==='detail'&&typeof renderMatchDetail==='function'){renderMatchDetail(el,d);return}el.innerHTML=d.html||'<div class="loading">Không có dữ liệu</div>'}catch(e){el.innerHTML='<div class="loading">Lỗi</div>'}}
async function doInteract(videoId,type){try{const r=await fetch('/api/v2/interact',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({id:videoId,type})});return await r.json();}catch(e){return null;}}
async function getInteractions(videoId){try{return await fetch('/api/v2/interactions?id='+encodeURIComponent(videoId)).then(r=>r.json());}catch(e){return{views:0,likes:0,comments:0};}}
async function getComments(videoId){try{const j=await fetch('/api/v2/comments?id='+encodeURIComponent(videoId)).then(r=>r.json());return j.comments||[];}catch(e){return[];}}
async function postComment(videoId,text){try{const j=await fetch('/api/v2/comment',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({id:videoId,text})}).then(r=>r.json());return j.comments||[];}catch(e){return[];}}
function buildTikTokSlide(opts){return`<div class="tiktok-slide" data-vid="${esc(opts.videoId)}">${opts.vtag}<div class="tiktok-bottom"><span class="badge ${opts.badgeClass||'badge-fpt'}">${opts.badge||''}</span><p class="tiktok-title">${esc(opts.title)}</p></div><div class="tiktok-right"><button class="tiktok-right-btn" onclick="event.stopPropagation();doView('${esc(opts.videoId)}',this)"><div class="icon">👁</div><div class="count" id="vc-${opts.idx}">0</div></button><button class="tiktok-right-btn" onclick="event.stopPropagation();doLike('${esc(opts.videoId)}',this)"><div class="icon">❤️</div><div class="count" id="lc-${opts.idx}">0</div></button><button class="tiktok-right-btn" onclick="event.stopPropagation();toggleComments('${esc(opts.videoId)}',${opts.idx})"><div class="icon">💬</div><div class="count" id="cc-${opts.idx}">0</div></button><button class="tiktok-right-btn" onclick="event.stopPropagation();doShare('${esc(opts.title)}','${esc(opts.shareUrl||'')}','')"><div class="icon">📤</div></button>${opts.extraBtn||''}</div><span class="tiktok-counter">${opts.idx+1}/${opts.total}</span><div class="inline-comments" id="cmt-inline-${opts.idx}" style="display:none"></div></div>`;}
async function doView(videoId,btn){const j=await doInteract(videoId,'view');if(j){const c=btn.querySelector('.count');if(c)c.textContent=fmtNum(j.views);}}
async function doLike(videoId,btn){const j=await doInteract(videoId,'like');if(j){const c=btn.querySelector('.count');if(c)c.textContent=fmtNum(j.likes);}}
function fmtNum(n){if(!n)return'0';if(n>=1000000)return(n/1000000).toFixed(1)+'M';if(n>=1000)return(n/1000).toFixed(1)+'K';return String(n);}
async function loadCounters(videoIds){for(let i=0;i<videoIds.length;i++){const id=videoIds[i];if(!id)continue;const j=await getInteractions(id);const vc=document.getElementById('vc-'+i);if(vc)vc.textContent=fmtNum(j.views);const lc=document.getElementById('lc-'+i);if(lc)lc.textContent=fmtNum(j.likes);const cc=document.getElementById('cc-'+i);if(cc)cc.textContent=fmtNum(j.comments);}}
async function toggleComments(videoId,idx){const panel=document.getElementById('cmt-inline-'+idx);if(!panel)return;if(panel.style.display!=='none'){panel.style.display='none';return;}panel.style.display='block';panel.innerHTML='<div style="padding:8px;color:#888;font-size:11px">Đang tải...</div>';const cmts=await getComments(videoId);renderInlineComments(panel,videoId,idx,cmts);}
function renderInlineComments(panel,videoId,idx,cmts){let h='<div class="inline-cmt-header"><span>💬 Bình luận</span><button onclick="document.getElementById(\'cmt-inline-'+idx+'\').style.display=\'none\'">✕</button></div><div class="inline-cmt-list">';if(cmts.length){cmts.slice(-30).forEach(c=>{h+=`<div class="inline-cmt-item"><span class="inline-cmt-time">${c.time||''}</span>${esc(c.text)}</div>`;});}else{h+='<div style="color:#777;font-size:11px;padding:4px">Chưa có bình luận</div>';}h+=`</div><div class="inline-cmt-input"><input id="cmt-input-${idx}" placeholder="Viết bình luận..." onkeydown="if(event.key==='Enter')submitInlineCmt('${esc(videoId)}',${idx})"><button onclick="submitInlineCmt('${esc(videoId)}',${idx})">Gửi</button></div>`;panel.innerHTML=h;const list=panel.querySelector('.inline-cmt-list');if(list)list.scrollTop=list.scrollHeight;}
async function submitInlineCmt(videoId,idx){const inp=document.getElementById('cmt-input-'+idx);if(!inp)return;const text=inp.value.trim();if(!text)return;inp.value='';inp.disabled=true;const cmts=await postComment(videoId,text);inp.disabled=false;const panel=document.getElementById('cmt-inline-'+idx);if(panel)renderInlineComments(panel,videoId,idx,cmts);const cc=document.getElementById('cc-'+idx);if(cc)cc.textContent=fmtNum(cmts.length);}
function initTikTokFeed(){const feed=document.getElementById('tiktok-feed');if(!feed)return;const slides=feed.querySelectorAll('.tiktok-slide');let cur=-1;function act(i){if(i===cur)return;slides.forEach((sl,idx)=>{const v=sl.querySelector('video');const fr=sl.querySelector('iframe');if(idx===i){if(v&&v.dataset.hls&&!v._hls&&typeof Hls!=='undefined'&&Hls.isSupported()){const hls=new Hls();hls.loadSource(v.dataset.hls);hls.attachMedia(v);hls.on(Hls.Events.MANIFEST_PARSED,()=>v.play().catch(()=>{}));v._hls=hls}else if(v)v.play().catch(()=>{});if(fr&&!fr.src&&fr.dataset.ytSrc)fr.src=fr.dataset.ytSrc;const vid=sl.dataset.vid;if(vid&&!sl._viewed){sl._viewed=true;doInteract(vid,'view').then(j=>{if(j){const vc=document.getElementById('vc-'+idx);if(vc)vc.textContent=fmtNum(j.views);}});}}else{if(v){v.pause();if(v._hls){v._hls.destroy();v._hls=null}}if(fr&&fr.src)fr.src=''}});cur=i}let sT;feed.addEventListener('scroll',()=>{clearTimeout(sT);sT=setTimeout(()=>{const rect=feed.getBoundingClientRect(),ctr=rect.top+rect.height/2;let best=-1,bestD=1e9;slides.forEach((sl,i)=>{const d=Math.abs(sl.getBoundingClientRect().top+sl.getBoundingClientRect().height/2-ctr);if(d<bestD){bestD=d;best=i}});if(best>=0)act(best)},150)});setTimeout(()=>act(0),400);slides.forEach(sl=>{const v=sl.querySelector('video');if(v)v.addEventListener('click',e=>{e.preventDefault();v.paused?v.play().catch(()=>{}):v.pause()})});const ids=[...slides].map(sl=>sl.dataset.vid||'');loadCounters(ids)}
async function openHighlightFeed(league,idx,forceUrl){showView('view-tiktok');const el=document.getElementById('view-tiktok');el.innerHTML='<div class="loading">Đang tải...</div>';let articles=(_hlLeagueData||{})[league]||[];if(!articles.length){try{articles=await fetch('/api/highlights/'+league).then(r=>r.json())}catch(e){articles=[]}}if(!articles.length){el.innerHTML='<div class="loading">Không có video</div>';return}const vids=[];const results=await Promise.all(articles.map(async(a,i)=>{try{const r=await fetch('/api/video_url?url='+encodeURIComponent(a.link));const v=await r.json();if(v&&v.src)return{...a,...v,_idx:i}}catch(e){}return null}));results.forEach(r=>{if(r)vids.push(r)});vids.sort((a,b)=>a._idx-b._idx);if(!vids.length){el.innerHTML='<div class="loading">Không tìm thấy video</div>';return}let ti=vids.findIndex(v=>v._idx===idx);if(ti<0)ti=0;const ordered=ti>0?[...vids.slice(ti),...vids.slice(0,ti)]:vids;let h=`<button class="back-btn" onclick="switchCat('home')">← Highlight</button><div class="tiktok-container"><div class="tiktok-feed" id="tiktok-feed">`;ordered.forEach((v,i)=>{const isYT=v.type==='youtube',isHLS=!isYT&&v.src?.includes('.m3u8'),poster=v.poster?` poster="${v.poster}"`:'';const vtag=isYT?`<iframe data-yt-src="${v.src}" allowfullscreen allow="accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture"></iframe>`:isHLS?`<video playsinline preload="none"${poster} data-hls="${v.src}" loop controls></video>`:`<video playsinline preload="none"${poster} loop controls><source src="${v.src}" type="video/mp4"></video>`;const videoId='hl-'+league+'-'+(v.id||v._idx);h+=buildTikTokSlide({vtag,title:v.title,badge:'HL',badgeClass:'badge-fpt',videoId,idx:i,total:ordered.length,shareUrl:v.link||'',extraBtn:`<button class="tiktok-right-btn" onclick="event.stopPropagation();this.closest('.tiktok-slide').classList.toggle('ratio-wide')"><div class="icon">⬜</div><div class="count">16:9</div></button>`});});h+='</div></div>';el.innerHTML=h;initTikTokFeed();}
async function openYTShortsFeed(startIdx){showView('view-tiktok');const el=document.getElementById('view-tiktok');el.innerHTML='<div class="loading">Đang tải...</div>';const arts=_shortsData.length?_shortsData:await fetch('/api/shorts').then(r=>r.json()).catch(()=>[]);if(!arts.length){el.innerHTML='<div class="loading">Không có shorts</div>';return}const ordered=startIdx>0?[...arts.slice(startIdx),...arts.slice(0,startIdx)]:arts;let h=`<button class="back-btn" onclick="switchCat('home')">← Shorts</button><div class="tiktok-container"><div class="tiktok-feed" id="tiktok-feed">`;ordered.forEach((v,i)=>{const id=v.id||'';const src=`https://www.youtube.com/embed/${id}?autoplay=1&rel=0&playsinline=1`;const vtag=`<iframe data-yt-src="${src}" allowfullscreen allow="accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture"></iframe>`;const badge=v.channel==='baosuckhoedoisongboyte'?'SKĐS':'Dân trí';const videoId='yt-'+id;h+=buildTikTokSlide({vtag,title:v.title,badge,badgeClass:'badge-fpt',videoId,idx:i,total:ordered.length,shareUrl:'https://youtube.com/watch?v='+id});});h+='</div></div>';el.innerHTML=h;initTikTokFeed();}
async function openShortAIFeed(startIdx){showView('view-tiktok');const el=document.getElementById('view-tiktok');el.innerHTML='<div class="loading">Đang tải...</div>';const wall=(await fetch('/api/wall').then(r=>r.json()).catch(()=>({posts:[]}))).posts||[];const vids=wall.filter(p=>p.video);if(!vids.length){el.innerHTML='<div class="loading">Chưa có Short AI</div>';return}const ordered=startIdx>0?[...vids.slice(startIdx),...vids.slice(0,startIdx)]:vids;let h=`<button class="back-btn" onclick="switchCat('home')">← Short AI</button><div class="tiktok-container"><div class="tiktok-feed" id="tiktok-feed">`;ordered.forEach((p,i)=>{const vtag=`<video src="${p.video}" playsinline loop controls></video>`;const videoId='ai-'+(p.id||i);h+=buildTikTokSlide({vtag,title:p.title,badge:'AI',badgeClass:'badge-ai',videoId,idx:i,total:ordered.length,shareUrl:SPACE});});h+='</div></div>';el.innerHTML=h;initTikTokFeed();}
async function readArticle(url){showView('view-article');const el=document.getElementById('view-article');el.innerHTML='<div class="loading">Đang tải...</div>';try{const r=await fetch('/api/article?url='+encodeURIComponent(url));const data=await r.json();if(data&&!data.error&&data.body&&data.body.length){_currentArticle={url,data};let h=`<button class="back-btn" onclick="switchCat('home')">← Quay lại</button><div class="article-view"><h1 class="article-title">${esc(data.title)}</h1>`;if(data.summary)h+=`<div class="article-summary">${esc(data.summary)}</div>`;const seen={};data.body.forEach(b=>{if(b.type==='p')h+=`<p class="article-p">${b.text}</p>`;else if(b.type==='img'&&b.src&&!seen[b.src]){seen[b.src]=1;h+=`<img class="article-img" src="${esc(b.src)}" onerror="this.style.display='none'">`}else if(b.type==='heading')h+=`<h2 class="article-h2">${esc(b.text)}</h2>`});h+=`<div class="article-actions"><button class="primary" onclick="rewriteArticle()">🤖 Rewrite AI đăng tường</button><button onclick="doShare('${esc(data.title)}','${esc(url)}','${esc(data.og_image||'')}')">📤</button><button onclick="window.open('${esc(url)}','_blank')">🔗 Gốc</button></div><div class="article-ai-ask"><h3 style="font-size:14px;color:#5cb87a">🤖 Hỏi AI</h3><textarea id="ask-q" placeholder="Hỏi về bài viết..."></textarea><button onclick="askAI()">Hỏi</button><div id="ask-a" class="article-ai-answer"></div></div></div>`;el.innerHTML=h;window.scrollTo(0,0);return;}}catch(e){}el.innerHTML=`<button class="back-btn" onclick="switchCat('home')">← Quay lại</button><div class="loading"><p>Không đọc được.</p><a href="${esc(url)}" target="_blank" style="color:#5cb87a">Mở gốc →</a></div>`;}
async function rewriteArticle(){const url=_currentArticle?.url;if(!url)return;toast('⏳ Đang rewrite...');try{const r=await fetch('/api/rewrite_share',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({url,context:document.querySelector('.article-view')?.innerText?.slice(0,14000)||''})});const j=await r.json();if(!r.ok||j.error)throw new Error(j.error);toast('✅ Đã đăng Tường AI!');if(j.post)prependWallPost(j.post);}catch(e){toast('❌ '+e.message)}}
async function rewriteUrl(){const url=document.getElementById('url-input')?.value.trim();if(!url)return alert('Dán URL');toast('⏳ Đang rewrite...');try{const r=await fetch('/api/url_wall',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({url})});const j=await r.json();if(!r.ok||j.error)throw new Error(j.error);toast('✅ Đã đăng!');document.getElementById('url-input').value='';if(j.post)prependWallPost(j.post);}catch(e){toast('❌ '+e.message)}}
async function askAI(){const q=document.getElementById('ask-q')?.value.trim();if(!q)return alert('Nhập câu hỏi');const a=document.getElementById('ask-a');a.textContent='Đang hỏi...';try{const r=await fetch('/api/article/ask',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({url:_currentArticle?.url||'',question:q,context:document.querySelector('.article-view')?.innerText?.slice(0,12000)||''})});const j=await r.json();a.textContent=j.answer||'Không trả lời được';}catch(e){a.textContent='Lỗi: '+e.message}}
async function readWallPost(i){const p=_wallPosts[i];if(!p)return;showView('view-article');
  const images = p.images || [];
  let imgGallery = '';
  if(images.length > 0){
    imgGallery = '<div class="article-image-gallery">';
    images.forEach((imgUrl, imgIdx) => {
      if(imgIdx === 0){
        imgGallery += `<img class="article-img article-hero-img" src="${esc(imgUrl)}" onerror="this.style.display='none" loading="eager">`;
      } else {
        if(imgIdx === 1) imgGallery += '<div class="gallery-thumbs">';
        imgGallery += `<div class="gallery-thumb"><img src="${esc(imgUrl)}" onerror="this.parentElement.style.display='none'" loading="lazy"></div>`;
      }
    });
    if(images.length > 1) imgGallery += '</div>';
    imgGallery += '</div>';
  }
  const hasVideo = p.video && p.video.length > 0;
  const voiceOptions = [
    {id:'hoaimy', label:'🎙️ Nữ — Hoài My'},
    {id:'namminh', label:'🎙️ Nam — Nam Minh'},
  ];
  let voiceSelector = '';
  if(!hasVideo){
    voiceSelector = `<div class="tts-selector"><div class="tts-selector-label">🎙️ Chọn giọng đọc:</div><div class="tts-voice-btns">`;
    voiceOptions.forEach(v=>{
      voiceSelector += `<button class="tts-voice-btn" onclick="document.querySelectorAll('.tts-voice-btn').forEach(b=>b.classList.remove('active'));this.classList.add('active');document.getElementById('selected-voice').value='${v.id}'">${v.label}</button>`;
    });
    voiceSelector += `</div><div class="tts-speed-row"><span>Tốc độ:</span><select id="selected-speed"><option value="1.0">1.0x — Bình thường</option><option value="1.2" selected>1.2x — Nhanh</option><option value="1.5">1.5x — Rất nhanh</option><option value="0.8">0.8x — Chậm</option></select></div>`;
    voiceSelector += `<input type="hidden" id="selected-voice" value="hoaimy"></div>`;
  }
  document.getElementById('view-article').innerHTML=`<button class="back-btn" onclick="switchCat('home')">← Quay lại</button><div class="article-view"><span class="badge badge-ai">AI</span><h1 class="article-title">${esc(p.title)}</h1>${imgGallery}<p class="article-p" style="white-space:pre-wrap">${esc(p.text)}</p>${hasVideo?`<video class="article-img" src="${esc(p.video)}" controls playsinline style="max-height:400px"></video>`:''}<div class="article-actions">${hasVideo?`<button onclick="openShortAIFeed(${i})">🎬 Xem Short</button>${voiceSelector}<button class="primary" onclick="makeShortVideo('${esc(p.id)}',this,document.getElementById('selected-voice')?.value,parseFloat(document.getElementById('selected-speed')?.value)||1.2)">🔄 Tạo lại Short</button>`:`${voiceSelector}<button class="primary" onclick="makeShortVideo('${esc(p.id)}',this,document.getElementById('selected-voice')?.value,parseFloat(document.getElementById('selected-speed')?.value)||1.2)">🎬 Tạo Video Shorts</button>`}<button onclick="doShare('${esc(p.title)}','${SPACE}','${esc(p.img||'')}')">📤</button></div></div>`;
  const firstVoiceBtn = document.querySelector('.tts-voice-btn');
  if(firstVoiceBtn) firstVoiceBtn.classList.add('active');
  window.scrollTo(0,0)}
async function loadNewsTab(){const el=document.getElementById('view-cat');el.innerHTML='<div class="loading">Đang tải...</div>';try{const r=await fetch('/api/homepage');const news=await r.json();if(!news.length){el.innerHTML='<div class="loading">Không có tin</div>';return}const groups={};news.forEach(a=>{if(!groups[a.group])groups[a.group]=[];groups[a.group].push(a)});let h='';for(const[g,arts]of Object.entries(groups)){h+=`<div class="section-title">${g}</div><div class="grid">`;arts.slice(0,6).forEach(a=>{h+=`<div class="card" onclick="readArticle('${esc(a.link)}')"><div class="card-img">${a.img?`<img src="${a.img}" loading="lazy">`:''}</div><div class="card-body"><span class="badge badge-vne">${esc(a.source||'VnE')}</span><div class="card-title">${esc(a.title)}</div></div></div>`});h+='</div>'}el.innerHTML=h}catch(e){el.innerHTML='<div class="loading">Lỗi</div>'}}
async function loadCat(id){const el=document.getElementById('view-cat');el.innerHTML='<div class="loading">Đang tải...</div>';const arts=await fetch('/api/category/'+id).then(r=>r.json()).catch(()=>[]);if(!arts.length){el.innerHTML='<div class="loading">Không có tin</div>';return}let h='<div class="grid">';arts.forEach(a=>{h+=`<div class="card" onclick="readArticle('${esc(a.link)}')"><div class="card-img">${a.img?`<img src="${a.img}" loading="lazy">`:''}</div><div class="card-body"><span class="badge badge-vne">${esc(a.source||'')}</span><div class="card-title">${esc(a.title)}</div></div></div>`});h+='</div>';el.innerHTML=h}
fetch('/api/storage_status').then(r=>r.json()).then(j=>{if(!j.persistent){const home=document.getElementById('view-home');if(home){const w=document.createElement('div');w.className='storage-warn';w.innerHTML='⚠️ Persistent Storage chưa bật.';home.prepend(w)}}}).catch(()=>{});

(function(){
  try{
    var hash = window.location.hash;
    if(hash && hash.length > 1){
      var articleUrl = decodeURIComponent(hash.substring(1));
      if(articleUrl.startsWith('http')){
        history.replaceState(null, '', window.location.pathname);
        setTimeout(function(){
          if(typeof readArticle==='function') readArticle(articleUrl);
        }, 1500);
      }
    }
  }catch(e){}
})();

(function(){
  try{
    const pa=localStorage.getItem('pending_article');
    const pv=localStorage.getItem('pending_video');
    if(pa){
      localStorage.removeItem('pending_article');
      setTimeout(()=>{
        if(typeof readArticle==='function') readArticle(pa);
      },1500);
    }
    if(pv){
      localStorage.removeItem('pending_video');
      try{
        const v=JSON.parse(pv);
        if(v&&v.url) setTimeout(()=>{window.open(v.url,'_blank')},1500);
      }catch(e){}
    }
  }catch(e){}
})();

if (document.readyState === 'loading') {
  document.addEventListener('DOMContentLoaded', function() {
    if (typeof loadHome === 'function') loadHome();
  });
} else {
  if (typeof loadHome === 'function') loadHome();
}