Blame for static/app.js

const $ = (s) => document.querySelector(s);
const drop = $('#drop'), fileInput = $('#file'), preview = $('#preview');
let direction = 'en2mm', voice = 'female', engine = 'nara', naraVoice = 'shoon', pollTimer = null, lastJid = null;
let mode = 'file', checkedUrl = '', checkedTitle = '';
let subsOn = false, subBg = 'box', blurOn = false, linkSid = '';
let fileSid = '', pvServer = false, pvStaging = false, pvTimer = null;

function selectGrid(gridSel, attr, cb) {
  document.querySelectorAll(gridSel + ' .opt').forEach((b) => {
    b.addEventListener('click', () => {
      document.querySelectorAll(gridSel + ' .opt').forEach((x) => x.classList.remove('selected'));
      b.classList.add('selected');
      cb(b.dataset[attr]);
    });
  });
}
selectGrid('#dirgrid', 'dir', (v) => (direction = v));
// Nara voice follows the gender pick (female -> Shoon, male -> Ko Banyar)
// until the user taps a Nara voice directly.
function syncNaraVoice() {
  naraVoice = voice === 'male' ? 'ko-banyar' : 'shoon';
  document.querySelectorAll('#naravoicegrid .opt').forEach((x) =>
    x.classList.toggle('selected', x.dataset.naravoice === naraVoice));
}
selectGrid('#voicegrid', 'voice', (v) => { voice = v; if (engine === 'nara') syncNaraVoice(); });
selectGrid('#enginegrid', 'engine', (v) => {
  engine = v;
  $('#naravoicewrap').hidden = v !== 'nara';
  if (v === 'nara') syncNaraVoice();
});
selectGrid('#naravoicegrid', 'naravoice', (v) => (naraVoice = v));
selectGrid('#subgrid', 'subs', (v) => {
  subsOn = v === 'on';
  $('#subbgwrap').hidden = !subsOn;
});
selectGrid('#subbggrid', 'subbg', (v) => (subBg = v));
selectGrid('#blurgrid', 'blur', (v) => { blurOn = v === 'on'; updateBlurUI(); });

// ---- blur box editor: one draggable/resizable box over a media frame ----
// The box is stored as fractions of the frame (x, y, w, h in 0..1), so the
// same editor works over the local <video> preview and over link frames.
function makeBoxEditor(wrap, box) {
  const frac = { x: 0.02, y: 0.80, w: 0.96, h: 0.15 };
  function draw() {
    box.style.left = (frac.x * 100) + '%';
    box.style.top = (frac.y * 100) + '%';
    box.style.width = (frac.w * 100) + '%';
    box.style.height = (frac.h * 100) + '%';
  }
  function bind(el, resize) {
    el.addEventListener('pointerdown', (ev) => {
      ev.preventDefault(); ev.stopPropagation();
      const r = wrap.getBoundingClientRect();
      const sx = ev.clientX, sy = ev.clientY, f0 = { ...frac };
      el.setPointerCapture(ev.pointerId);
      const move = (e2) => {
        const dx = (e2.clientX - sx) / r.width, dy = (e2.clientY - sy) / r.height;
        if (resize) {
          frac.w = Math.min(Math.max(f0.w + dx, 0.05), 1 - frac.x);
          frac.h = Math.min(Math.max(f0.h + dy, 0.03), 1 - frac.y);
        } else {
          frac.x = Math.min(Math.max(f0.x + dx, 0), 1 - frac.w);
          frac.y = Math.min(Math.max(f0.y + dy, 0), 1 - frac.h);
        }
        draw();
      };
      const up = () => {
        el.removeEventListener('pointermove', move);
        el.removeEventListener('pointerup', up);
        el.removeEventListener('pointercancel', up);
      };
      el.addEventListener('pointermove', move);
      el.addEventListener('pointerup', up);
      el.addEventListener('pointercancel', up);
    });
  }
  bind(box, false);
  bind(box.querySelector('.boxhandle'), true);
  draw();
  return {
    show() { box.hidden = false; draw(); },
    hide() { box.hidden = true; },
    get() { return [frac.x, frac.y, frac.w, frac.h].map((n) => n.toFixed(4)).join(','); },
  };
}
const pvEditor = makeBoxEditor($('#pvwrap'), $('#blurbox'));
const frEditor = makeBoxEditor($('#frwrap'), $('#blurbox2'));

function updateBlurUI() {
  $('#bluredit').hidden = !blurOn;
  if (!blurOn) { pvEditor.hide(); frEditor.hide(); return; }
  if (mode === 'file') {
    $('#linkframes').hidden = true;
    $('#blurhint').textContent = fileInput.files.length
      ? 'အပေါ်က video preview မှာ subtitle ပေါ်တဲ့ နေရာထိ ဖွင့်ပြီး အဝါရောင် box ကို စာတန်း နေရာသို့ ရွှေ့ထားပါ · ညာအောက် ထောင့်က အစက်ကို ဆွဲရင် box အရွယ် ပြောင်းလို့ရတယ်'
      : 'အရင် video file ရွေးပါ — preview ပေါ်မှာ box မှတ်လို့ရမယ်';
    if (fileInput.files.length) pvEditor.show(); else pvEditor.hide();
  } else {
    $('#linkframes').hidden = false;
    $('#blurhint').textContent = 'Link video အတွက် server က frame ထုတ်ပေးမယ် — အောက်က ခလုတ်ကို နှိပ်ပါ';
    pvEditor.hide();
    if (!$('#framearea').hidden) frEditor.show();
  }
}

preview.addEventListener('loadedmetadata', () => {
  if (preview.videoWidth && preview.videoHeight)
    $('#pvwrap').style.aspectRatio = preview.videoWidth + ' / ' + preview.videoHeight;
  if (blurOn && mode === 'file') pvEditor.show();
});
preview.addEventListener('error', () => {
  if (mode === 'file' && fileInput.files.length && !fileSid) showPvFallback();
});

function showPvFallback() {
  if (pvServer || !fileInput.files.length) return;
  $('#pvfallback').hidden = false;
}

$('#pvserverbtn').addEventListener('click', () => {
  const f = fileInput.files[0];
  if (!f || pvStaging) return;
  pvStaging = true;
  const btn = $('#pvserverbtn'), note = $('#pvnote');
  note.hidden = true;
  btn.disabled = true;
  const fd = new FormData();
  fd.append('video', f);
  const xhr = new XMLHttpRequest();  // XHR, not fetch (iOS Safari POST bug)
  xhr.open('POST', '/api/jobs/file-frames');
  xhr.upload.onprogress = (e) => {
    if (e.lengthComputable)
      btn.textContent = '⏳ တင်နေတယ်… ' + Math.round(e.loaded / e.total * 100) + '%';
  };
  xhr.onload = () => {
    pvStaging = false; btn.disabled = false;
    btn.textContent = '▶ Server preview ထုတ်မယ်';
    try {
      const j = JSON.parse(xhr.responseText);
      if (xhr.status >= 200 && xhr.status < 300 && j.sid) {
        fileSid = j.sid; pvServer = true;
        clearTimeout(pvTimer);
        $('#pvfallback').hidden = true;
        preview.src = j.preview;
        preview.load();
        if (blurOn)
          $('#blurhint').textContent = 'Server preview ပေါ်မှာ subtitle ပေါ်တဲ့ နေရာထိ ဖွင့်ပြီး အဝါရောင် box ကို စာတန်း နေရာသို့ ရွှေ့ထားပါ · ညာအောက် ထောင့်က အစက်ကို ဆွဲရင် box အရွယ် ပြောင်းလို့ရတယ်';
      } else {
        note.textContent = j.error || 'preview ထုတ်မရဘူး'; note.hidden = false;
      }
    } catch (e) { note.textContent = 'preview ထုတ်မရဘူး'; note.hidden = false; }
  };
  xhr.onerror = () => {
    pvStaging = false; btn.disabled = false;
    btn.textContent = '▶ Server preview ထုတ်မယ်';
    note.textContent = 'တင်မရဘူး — connection စစ်ပါ'; note.hidden = false;
  };
  xhr.send(fd);
});

drop.addEventListener('click', () => fileInput.click());
['dragover', 'dragenter'].forEach((e) => drop.addEventListener(e, (ev) => { ev.preventDefault(); drop.classList.add('over'); }));
['dragleave', 'drop'].forEach((e) => drop.addEventListener(e, (ev) => { ev.preventDefault(); drop.classList.remove('over'); }));
drop.addEventListener('drop', (ev) => {
  if (ev.dataTransfer.files.length) handleFile(ev.dataTransfer.files[0]);
});
fileInput.addEventListener('change', () => { if (fileInput.files.length) handleFile(fileInput.files[0]); });

function handleFile(f) {
  if (!/^video\//.test(f.type) && !/\.(mp4|mov|mkv|webm|m4v)$/i.test(f.name)) {
    alert('ဗီဒီယိုဖိုင်ပဲ တင်လို့ရတယ်'); return;
  }
  fileSid = ''; pvServer = false;
  $('#pvfallback').hidden = true;
  preview.src = URL.createObjectURL(f);
  // Some codecs (AV1 in an .mp4) never load in Safari's <video> — if
  // no frame data arrives quickly, offer a server-made preview.
  clearTimeout(pvTimer);
  pvTimer = setTimeout(() => {
    if (!fileSid && preview.readyState < 2) showPvFallback();
  }, 3500);
  $('#pvwrap').hidden = false;
  const meta = $('#filemeta');
  meta.hidden = false;
  meta.textContent = `${f.name} · ${(f.size / 1048576).toFixed(1)} MB`;
  $('#card-opts').hidden = false;
  drop.querySelector('.drop-title').innerHTML = '✅ ရွေးပြီးပြီ <span class="dim">— ပြောင်းချင်ရင် နှိပ်ပါ</span>';
  updateBlurUI();
  $('#card-opts').scrollIntoView({ behavior: 'smooth', block: 'nearest' });
}

// ---- source mode: file upload or pasted link ----
function setMode(m) {
  mode = m;
  $('#mode-file').classList.toggle('selected', m === 'file');
  $('#mode-link').classList.toggle('selected', m === 'link');
  $('#panel-file').hidden = m !== 'file';
  $('#panel-link').hidden = m !== 'link';
  const hasFile = fileInput.files && fileInput.files.length > 0;
  $('#card-opts').hidden = !(m === 'file' ? hasFile : !!checkedUrl);
  updateBlurUI();
  if (m === 'link') $('#urlinput').focus();
}
$('#mode-file').addEventListener('click', () => setMode('file'));
$('#mode-link').addEventListener('click', () => setMode('link'));

$('#pastebtn').addEventListener('click', async () => {
  try {
    const t = await navigator.clipboard.readText();
    if (t) { $('#urlinput').value = t.trim(); checkUrl(); return; }
  } catch (e) { /* clipboard blocked — let the user paste by hand */ }
  $('#urlinput').focus();
});

function fmtDur(s) {
  if (!s) return '';
  return Math.floor(s / 60) + ':' + String(s % 60).padStart(2, '0');
}

function checkUrl() {
  const url = $('#urlinput').value.trim();
  const errEl = $('#urlerr'), btn = $('#checkbtn');
  errEl.hidden = true; $('#urlinfo').hidden = true;
  checkedUrl = ''; checkedTitle = '';
  if (!url) { errEl.textContent = 'link အရင် ထည့်ပါ'; errEl.hidden = false; return; }
  btn.disabled = true; btn.textContent = '⏳ စစ်နေတယ်…';
  const xhr = new XMLHttpRequest();  // XHR, not fetch (iOS Safari POST bug)
  xhr.open('POST', '/api/jobs/check-url');
  xhr.setRequestHeader('Content-Type', 'application/json');
  xhr.onload = () => {
    btn.disabled = false; btn.textContent = '🔍 စစ်မယ်';
    try {
      const j = JSON.parse(xhr.responseText);
      if (xhr.status >= 200 && xhr.status < 300 && j.ok) {
        checkedUrl = j.url; checkedTitle = j.title || '';
        $('#urltitle').textContent = j.title || '(ခေါင်းစဉ် မရှိ)';
        $('#urlmeta').textContent =
          [j.site, j.duration ? '⏱ ' + fmtDur(j.duration) : ''].filter(Boolean).join(' · ');
        const th = $('#urlthumb');
        if (j.thumbnail) { th.src = j.thumbnail; th.hidden = false; } else th.hidden = true;
        $('#urlinfo').hidden = false;
        $('#card-opts').hidden = false;
        $('#card-opts').scrollIntoView({ behavior: 'smooth', block: 'nearest' });
      } else {
        errEl.textContent = j.error || 'စစ်မရဘူး'; errEl.hidden = false;
      }
    } catch (e) { errEl.textContent = 'စစ်မရဘူး'; errEl.hidden = false; }
  };
  xhr.onerror = () => { btn.disabled = false; btn.textContent = '🔍 စစ်မယ်'; errEl.textContent = 'စစ်မရဘူး'; errEl.hidden = false; };
  xhr.send(JSON.stringify({ url: url }));
}
$('#checkbtn').addEventListener('click', checkUrl);
$('#urlinput').addEventListener('input', () => {
  // editing the link after a successful check invalidates the check
  if (checkedUrl && $('#urlinput').value.trim() !== checkedUrl) {
    checkedUrl = ''; checkedTitle = '';
    $('#urlinfo').hidden = true; $('#card-opts').hidden = true;
    // blur frames were fetched for the old link — drop them too
    linkSid = ''; $('#framearea').hidden = true; frEditor.hide();
  }
});

// ---- link mode: fetch sample frames so the blur box can be marked ----
$('#framesbtn').addEventListener('click', () => {
  const errEl = $('#frameserr'), btn = $('#framesbtn');
  errEl.hidden = true;
  if (!checkedUrl) { checkUrl(); return; }
  btn.disabled = true; btn.textContent = '⏳ Frame ထုတ်နေတယ်… (video ဆွဲချနေတယ်)';
  const xhr = new XMLHttpRequest();  // XHR, not fetch (iOS Safari POST bug)
  xhr.open('POST', '/api/jobs/link-frames');
  xhr.setRequestHeader('Content-Type', 'application/json');
  xhr.onload = () => {
    btn.disabled = false; btn.textContent = '🖼️ Frame ထုတ်ပြီး box မှတ်မယ်';
    try {
      const j = JSON.parse(xhr.responseText);
      if (xhr.status >= 200 && xhr.status < 300 && j.sid) {
        linkSid = j.sid;
        $('#frwrap').style.aspectRatio = j.w + ' / ' + j.h;
        const chips = $('#framechips');
        chips.innerHTML = '';
        j.frames.forEach((src, i) => {
          const b = document.createElement('button');
          b.type = 'button'; b.textContent = 'Frame ' + (i + 1);
          if (i === 0) b.classList.add('on');
          b.addEventListener('click', () => {
            chips.querySelectorAll('button').forEach((x) => x.classList.remove('on'));
            b.classList.add('on');
            $('#frameimg').src = src;
          });
          chips.appendChild(b);
        });
        $('#frameimg').src = j.frames[0];
        $('#framearea').hidden = false;
        if (blurOn) frEditor.show();
      } else {
        errEl.textContent = j.error || 'frame ထုတ်မရဘူး'; errEl.hidden = false;
      }
    } catch (e) { errEl.textContent = 'frame ထုတ်မရဘူး'; errEl.hidden = false; }
  };
  xhr.onerror = () => { btn.disabled = false; btn.textContent = '🖼️ Frame ထုတ်ပြီး box မှတ်မယ်'; errEl.textContent = 'frame ထုတ်မရဘူး'; errEl.hidden = false; };
  xhr.send(JSON.stringify({ url: checkedUrl }));
});

$('#go').addEventListener('click', () => {
  if (mode === 'link') {
    if (!checkedUrl) { checkUrl(); return; }
    const btn = $('#go');
    btn.disabled = true; btn.textContent = '⏳ တင်နေတယ်…';
    const xhr = new XMLHttpRequest();  // XHR, not fetch (iOS Safari POST bug)
    xhr.open('POST', '/api/jobs/from-url');
    xhr.setRequestHeader('Content-Type', 'application/json');
    xhr.onload = () => {
      btn.disabled = false; btn.textContent = '✨ Dub စလုပ်မယ်';
      try {
        const j = JSON.parse(xhr.responseText);
        if (xhr.status >= 200 && xhr.status < 300 && j.job_id) showProgress(j.job_id);
        else showError(j.error || 'တင်မရဘူး');
      } catch (e) { showError('တင်မရဘူး'); }
    };
    xhr.onerror = () => { btn.disabled = false; btn.textContent = '✨ Dub စလုပ်မယ်'; showError('တင်မရဘူး'); };
    xhr.send(JSON.stringify({
      url: checkedUrl, title: checkedTitle, direction: direction, voice: voice, engine: engine,
      nara_voice: naraVoice,
      subs: subsOn ? 1 : 0, sub_bg: subBg,
      blur: blurOn && linkSid ? frEditor.get() : '',
      sid: linkSid || '',
    }));
    return;
  }
  if (fileSid) {
    // file already staged for the server preview — reuse that upload
    const btn = $('#go');
    btn.disabled = true; btn.textContent = '⏳ တင်နေတယ်…';
    const xhr = new XMLHttpRequest();  // XHR, not fetch (iOS Safari POST bug)
    xhr.open('POST', '/api/jobs/from-file');
    xhr.setRequestHeader('Content-Type', 'application/json');
    xhr.onload = () => {
      btn.disabled = false; btn.textContent = '✨ Dub စလုပ်မယ်';
      try {
        const j = JSON.parse(xhr.responseText);
        if (xhr.status >= 200 && xhr.status < 300 && j.job_id) showProgress(j.job_id);
        else showError(j.error || 'တင်မရဘူး');
      } catch (e) { showError('တင်မရဘူး'); }
    };
    xhr.onerror = () => { btn.disabled = false; btn.textContent = '✨ Dub စလုပ်မယ်'; showError('တင်မရဘူး'); };
    xhr.send(JSON.stringify({
      sid: fileSid, direction: direction, voice: voice, engine: engine,
      nara_voice: naraVoice,
      subs: subsOn ? 1 : 0, sub_bg: subBg,
      blur: blurOn ? pvEditor.get() : '',
    }));
    return;
  }
  const f = fileInput.files[0];
  if (!f) return;
  const btn = $('#go');
  btn.disabled = true; btn.textContent = '⏳ တင်နေတယ်…';
  const fd = new FormData();
  fd.append('video', f); fd.append('direction', direction); fd.append('voice', voice); fd.append('engine', engine); fd.append('nara_voice', naraVoice);
  fd.append('subs', subsOn ? '1' : '0'); fd.append('sub_bg', subBg);
  if (blurOn) fd.append('blur', pvEditor.get());
  // NOTE: iOS Safari's fetch() throws "The string did not match the expected
  // pattern" on FormData POST uploads (WebKit bug) — XHR works reliably.
  const xhr = new XMLHttpRequest();
  xhr.open('POST', '/api/jobs');
  xhr.onload = () => {
    btn.disabled = false; btn.textContent = '✨ Dub စလုပ်မယ်';
    try {
      const j = JSON.parse(xhr.responseText);
      if (xhr.status >= 200 && xhr.status < 300 && j.job_id) showProgress(j.job_id);
      else showError(j.error || 'upload failed');
    } catch (e) { showError('upload failed'); }
  };
  xhr.onerror = () => { btn.disabled = false; btn.textContent = '✨ Dub စလုပ်မယ်'; showError('upload failed'); };
  xhr.send(fd);
});

function showProgress(jid) {
  try { localStorage.setItem('dublab_job', jid); } catch (e) {}
  const jl = $('#joblink');
  if (jl) { const u = location.origin + '/r/' + jid; jl.href = u; jl.textContent = u; }
  ['card-upload', 'card-opts', 'card-result', 'card-error'].forEach((id) => ($('#' + id).hidden = true));
  $('#card-progress').hidden = false;
  $('#card-progress').scrollIntoView({ behavior: 'smooth' });
  const order = ['download', 'blur', 'audio', 'transcribe', 'translate', 'voice', 'mux'];
  const stopLog = startLiveLog(jid);
  const stopAll = () => { clearInterval(pollTimer); stopLog(); };
  pollTimer = setInterval(async () => {
    try {
      const r = await fetch('/api/jobs/' + jid);
      const j = await r.json();
      if (!r.ok) throw new Error(j.error || 'status failed');
      $('#barfill').style.width = j.pct + '%';
      $('#stagelabel').textContent = j.label + (j.pct ? ` · ${j.pct}%` : '');
      document.querySelectorAll('#stages li').forEach((li) => {
        const s = li.dataset.s;
        li.classList.remove('active', 'done');
        if (j.stage === 'done' || order.indexOf(s) < order.indexOf(j.stage)) li.classList.add('done');
        else if (s === j.stage) li.classList.add('active');
      });
      if (j.status === 'done') { stopAll(); showResult(jid, j.has_srt); }
      if (j.status === 'failed') { stopAll(); showError(j.error || 'အမှားရှိတယ်'); }
    } catch (e) { stopAll(); showError(e.message); }
  }, 2000);
}

// Live job logs — polls /api/jobs/<jid>/log, auto-scrolls.
function startLiveLog(jid) {
  const pre = $('#livelog');
  pre.textContent = '';
  const t = setInterval(async () => {
    try {
      const r = await fetch('/api/jobs/' + jid + '/log');
      const j = await r.json();
      if (r.ok && typeof j.log === 'string' && j.log !== pre.textContent) {
        pre.textContent = j.log;
        pre.scrollTop = pre.scrollHeight;
      }
    } catch (e) { /* keep old content */ }
  }, 2000);
  return () => clearInterval(t);
}

function showResult(jid, hasSrt) {
  $('#card-progress').hidden = true;
  $('#card-result').hidden = false;
  lastJid = jid;
  $('#resultvideo').src = '/r/' + jid;
  setSpeed(1);
  $('#download').href = '/r/' + jid;
  const srt = $('#srtdl');
  if (srt) { srt.hidden = !hasSrt; if (hasSrt) srt.href = '/api/jobs/' + jid + '/srt'; }
  $('#card-result').scrollIntoView({ behavior: 'smooth' });
}

function showError(msg) {
  if (pollTimer) clearInterval(pollTimer);
  ['card-upload', 'card-opts', 'card-progress', 'card-result'].forEach((id) => ($('#' + id).hidden = true));
  $('#card-error').hidden = false;
  $('#errmsg').textContent = msg;
}

$('#again').addEventListener('click', () => { try { localStorage.removeItem('dublab_job'); } catch (e) {} location.reload(); });
$('#retry').addEventListener('click', () => { try { localStorage.removeItem('dublab_job'); } catch (e) {} location.reload(); });

// ---- reviews ----
function makeStars(id) {
  const el = document.getElementById(id);
  let val = 0;
  const btns = el.querySelectorAll('button');
  btns.forEach((b) => b.addEventListener('click', () => {
    val = +b.dataset.s;
    btns.forEach((x) => (x.textContent = +x.dataset.s <= val ? '⭐' : '☆'));
  }));
  return {
    get: () => val,
    reset: () => { val = 0; btns.forEach((x) => (x.textContent = '☆')); },
  };
}
const rstars = makeStars('rstars'), fstars = makeStars('fstars');

function postReview(stars, msgEl, jid, doneEl, starsObj) {
  const msg = msgEl.value.trim();
  if (!stars && !msg) { alert('star ဒါမှမဟုတ် စာတစ်ခုခု ပေးပါ'); return; }
  const xhr = new XMLHttpRequest();  // XHR, not fetch (iOS Safari FormData/POST bug)
  xhr.open('POST', '/api/reviews');
  xhr.setRequestHeader('Content-Type', 'application/json');
  xhr.onload = () => {
    let ok = false, err = '';
    try { const j = JSON.parse(xhr.responseText); ok = xhr.status < 300 && !!j.ok; err = j.error || ''; }
    catch (e) { /* ignore */ }
    if (ok) {
      doneEl.hidden = false;
      msgEl.value = ''; starsObj.reset();
      setTimeout(() => (doneEl.hidden = true), 4000);
    } else if (err) alert(err);
    else alert('ပို့မရဘူး');
  };
  xhr.onerror = () => alert('ပို့မရဘူး');
  xhr.send(JSON.stringify({ stars: stars, message: msg, job_id: jid || '' }));
}
$('#rsend').addEventListener('click', () =>
  postReview(rstars.get(), $('#rmsg'), lastJid, $('#rdone'), rstars));
$('#fsend').addEventListener('click', () =>
  postReview(fstars.get(), $('#fmsg'), null, $('#fdone'), fstars));

// ---- playback speed (review request: အနှေး/အမြန်) ----
function setSpeed(r) {
  const v = $('#resultvideo');
  if (v) v.playbackRate = r;
  const slider = $('#speedslider'), val = $('#speedval');
  if (slider) slider.value = r;
  if (val) val.textContent = r.toFixed(2) + 'x';
  document.querySelectorAll('#speedrow button').forEach((x) =>
    x.classList.toggle('on', parseFloat(x.dataset.r) === r));
}
document.querySelectorAll('#speedrow button').forEach((b) => b.addEventListener('click', () => {
  setSpeed(parseFloat(b.dataset.r));
}));
(function () {
  const slider = $('#speedslider');
  if (slider) slider.addEventListener('input', () => setSpeed(parseFloat(slider.value)));
})();

// ---- update notice box (show once per device) ----
(function () {
  const KEY = 'dublab_notice_nllb_v3';
  const notice = $('#updatenotice');
  if (!notice) return;
  let seen = false;
  try { seen = localStorage.getItem(KEY) === '1'; } catch (e) { /* private mode */ }
  if (!seen) notice.hidden = false;
  const okBtn = $('#noticeok');
  if (okBtn) okBtn.addEventListener('click', () => {
    try { if ($('#noshowagain') && $('#noshowagain').checked) localStorage.setItem(KEY, '1'); } catch (e) {}
    notice.hidden = true;
  });
})();

// ---- tabs: Dubbing / SRT translator ----
(function () {
  const tabs = document.querySelectorAll('#tabs .tab');
  if (!tabs.length) return;
  const panels = { dub: document.getElementById('tab-dub'), srt: document.getElementById('tab-srt') };
  tabs.forEach(btn => btn.addEventListener('click', () => {
    tabs.forEach(b => b.classList.toggle('on', b === btn));
    const name = btn.dataset.tab;
    if (panels.dub) panels.dub.hidden = name !== 'dub';
    if (panels.srt) panels.srt.hidden = name !== 'srt';
  }));
})();

// ---- resume: reopening the page restores the running/finished job view ----
(function resumeJob() {
  let jid = null;
  try { jid = localStorage.getItem('dublab_job'); } catch (e) {}
  if (!jid) return;
  fetch('/api/jobs/' + jid).then(async (r) => {
    const j = await r.json().catch(() => ({}));
    if (!r.ok) { try { localStorage.removeItem('dublab_job'); } catch (e) {} return; }
    if (j.status === 'processing') showProgress(jid);
    else if (j.status === 'done') showResult(jid, j.has_srt);
    else if (j.status === 'failed') { try { localStorage.removeItem('dublab_job'); } catch (e) {} showError(j.error || 'အမှားရှိတယ်'); }
  }).catch(() => {});
})();

const cpBtn = $('#copylink');
if (cpBtn) cpBtn.addEventListener('click', async () => {
  const a = $('#joblink');
  if (!a || !a.href) return;
  try { await navigator.clipboard.writeText(a.href); cpBtn.textContent = '✅ Copied'; setTimeout(() => { cpBtn.textContent = '📋 Copy link'; }, 1500); } catch (e) {}
});