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File size: 41,229 Bytes
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Aurora Dub — Premium AI Video Dubbing</title>
<style>
/* ============================================================
   Design tokens
   ============================================================ */
:root{
  --sky:#00a2ff;
  --sky-soft:#7cd1ff;
  --sky-deep:#0077cc;
  --ink:#0b1524;
  --ink-soft:#5a6b82;
  --line:#e7eef7;
  --bg:#ffffff;
  --panel:#ffffff;
  --panel-glass:rgba(255,255,255,0.62);
  --shadow:0 18px 50px -20px rgba(0,110,190,0.28);
  --shadow-sm:0 8px 24px -12px rgba(11,21,36,0.18);
  --radius:20px;
  --radius-sm:12px;
  --term-bg:#0a1220;
  --term-line:#12203a;
  --ok:#2fd07a;
  --warn:#ffcf5c;
  --err:#ff6b6b;
}

/* Rotatable angle for the RGB border */
@property --rgb-angle{
  syntax:'<angle>';
  initial-value:0deg;
  inherits:false;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(124,209,255,0.20), transparent 60%),
    radial-gradient(1000px 620px at 108% 4%, rgba(0,162,255,0.14), transparent 58%),
    #ffffff;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
}

/* ============================================================
   Layout
   ============================================================ */
.shell{max-width:1180px;margin:0 auto;padding:34px 26px 70px;}

.topbar{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;margin-bottom:34px;
}
.brand{display:flex;align-items:center;gap:14px;}
.brand-mark{
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--sky),var(--sky-soft));
  box-shadow:0 12px 26px -10px rgba(0,162,255,0.65);
  color:#fff;
}
.brand-name{font-size:20px;font-weight:800;letter-spacing:-0.02em;}
.brand-sub{font-size:12.5px;color:var(--ink-soft);font-weight:500;margin-top:-2px;}

.status-pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 15px;border-radius:999px;
  background:var(--panel-glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink-soft);
  box-shadow:var(--shadow-sm);
}
.status-dot{width:9px;height:9px;border-radius:50%;background:var(--sky);box-shadow:0 0 0 4px rgba(0,162,255,0.16);}

.hero{margin-bottom:30px;}
.hero h1{
  font-size:clamp(28px,4vw,44px);line-height:1.08;
  letter-spacing:-0.03em;font-weight:850;margin:0 0 10px;
}
.hero h1 .grad{
  background:linear-gradient(120deg,var(--sky-deep),var(--sky) 45%,var(--sky-soft));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{max-width:640px;color:var(--ink-soft);font-size:15.5px;margin:0;}

/* ============================================================
   Cards / grid
   ============================================================ */
.grid{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:24px;align-items:start;
}
@media (max-width:940px){.grid{grid-template-columns:1fr;}}

.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:24px;
}
.card.glass{
  background:var(--panel-glass);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.card-title{display:flex;align-items:center;gap:10px;font-weight:750;font-size:15px;margin-bottom:18px;}
.card-title svg{color:var(--sky);}

/* ============================================================
   RGB Glow Dropbox
   ============================================================ */
.drop-wrap{position:relative;border-radius:22px;padding:3px;isolation:isolate;}
.drop-wrap::before{
  content:"";position:absolute;inset:0;border-radius:22px;padding:3px;
  background:conic-gradient(from var(--rgb-angle),
     #ff3d81,#ff9d3d,#ffe14d,#4dff8f,#00a2ff,#7c6bff,#ff3d81);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  animation:spin 6s linear infinite;
  opacity:0.9;transition:opacity .3s ease;
  z-index:-1;
}
@keyframes spin{to{--rgb-angle:360deg;}}

.dropbox{
  position:relative;border-radius:19px;
  background:#ffffff;
  padding:40px 26px;text-align:center;cursor:pointer;
  transition:background .25s ease,box-shadow .25s ease,transform .12s ease;
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
.dropbox:hover{transform:translateY(-1px);}
.drop-icon{
  width:62px;height:62px;border-radius:50%;
  display:grid;place-items:center;color:var(--sky);
  background:radial-gradient(circle at 50% 40%,rgba(0,162,255,0.14),rgba(124,209,255,0.06));
  transition:transform .25s ease,color .25s ease;
}
.dropbox h3{margin:2px 0 0;font-size:16.5px;font-weight:750;}
.dropbox p{margin:0;color:var(--ink-soft);font-size:13.5px;}
.dropbox .hint{font-size:12px;color:#98a7bd;}

/* Deep sky-blue solid glow while dragging */
.drop-wrap.dragging::before{opacity:0;}
.drop-wrap.dragging .dropbox{
  background:linear-gradient(180deg,#eaf7ff,#dcf0ff);
  box-shadow:0 0 0 3px var(--sky),0 0 46px -4px rgba(0,162,255,0.85),inset 0 0 40px rgba(0,162,255,0.20);
}
.drop-wrap.dragging .drop-icon{transform:scale(1.08);color:var(--sky-deep);}
.drop-wrap.has-file::before{
  background:conic-gradient(from var(--rgb-angle),var(--sky),var(--sky-soft),var(--sky-deep),var(--sky));
}

.file-chip{
  margin-top:16px;display:none;align-items:center;gap:12px;
  padding:12px 14px;border-radius:var(--radius-sm);
  background:#f4fbff;border:1px solid #d5edff;
  text-align:left;
}
.file-chip.show{display:flex;}
.file-chip .fmeta{min-width:0;flex:1;}
.file-chip .fname{font-weight:650;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.file-chip .fsize{font-size:12px;color:var(--ink-soft);}
.file-chip .fico{color:var(--sky);flex-shrink:0;}
.file-chip .fclear{margin-left:auto;background:none;border:none;cursor:pointer;color:var(--ink-soft);padding:6px;border-radius:8px;display:grid;place-items:center;}
.file-chip .fclear:hover{background:#e3f3ff;color:var(--err);}

/* ============================================================
   Form controls
   ============================================================ */
.field{margin-bottom:16px;}
.field label{display:block;font-size:12.5px;font-weight:650;color:var(--ink-soft);margin-bottom:7px;letter-spacing:.01em;}
.control{
  position:relative;
}
.control select,.control input[type="text"]{
  width:100%;appearance:none;-webkit-appearance:none;
  padding:12px 40px 12px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fbfdff;
  font-size:14.5px;font-family:inherit;color:var(--ink);font-weight:550;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.control select:focus,.control input[type="text"]:focus{
  outline:none;border-color:var(--sky);background:#fff;
  box-shadow:0 0 0 4px rgba(0,162,255,0.14);
}
.control .chev{position:absolute;right:13px;top:50%;transform:translateY(-50%);color:var(--ink-soft);pointer-events:none;}

.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media (max-width:480px){.row2{grid-template-columns:1fr;}}

/* Source language badge */
.src-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 13px;border-radius:999px;font-size:12.5px;font-weight:650;
  background:#f1f8ff;border:1px solid #d8ecff;color:var(--sky-deep);
}
.src-badge svg{flex-shrink:0;}
.src-badge.detecting{color:var(--ink-soft);background:#f6f8fb;border-color:var(--line);}
.src-badge .spin-i{animation:rot 1.1s linear infinite;transform-origin:center;}
@keyframes rot{to{transform:rotate(360deg);}}
.src-badge.locked{color:#0a8a4a;background:#eefcf3;border-color:#c7f0d7;}

/* Primary button */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  width:100%;padding:15px 20px;border:none;border-radius:14px;cursor:pointer;
  font-size:15px;font-weight:750;font-family:inherit;color:#fff;
  background:linear-gradient(120deg,var(--sky-deep),var(--sky) 55%,var(--sky-soft));
  box-shadow:0 16px 34px -14px rgba(0,120,204,0.8);
  transition:transform .12s ease,box-shadow .2s ease,filter .2s ease,opacity .2s ease;
}
.btn:hover:not(:disabled){transform:translateY(-2px);filter:brightness(1.03);}
.btn:active:not(:disabled){transform:translateY(0);}
.btn:disabled{opacity:.55;cursor:not-allowed;box-shadow:none;}
.btn.ghost{
  background:#fff;color:var(--sky-deep);border:1px solid #cfe8ff;box-shadow:none;
}
.btn.ghost:hover:not(:disabled){background:#f2f9ff;transform:none;}

.btn-spin{display:none;}
.btn.loading .btn-spin{display:inline-grid;}
.btn.loading .btn-label,.btn.loading .btn-ico{display:none;}
.btn-spin svg{animation:rot .9s linear infinite;}

/* ============================================================
   Dashboard: progress + console
   ============================================================ */
.dash{display:grid;grid-template-columns:1fr;gap:20px;}

.progress-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.progress-stage{font-size:13px;font-weight:650;color:var(--ink-soft);display:flex;align-items:center;gap:9px;min-width:0;}
.progress-stage .st-txt{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.progress-pct{font-size:22px;font-weight:850;letter-spacing:-.02em;color:var(--sky-deep);font-variant-numeric:tabular-nums;}

.progress-track{
  height:14px;border-radius:999px;background:#eaf1f9;overflow:hidden;position:relative;
  border:1px solid #e0ebf6;
}
.progress-fill{
  height:100%;width:0%;border-radius:999px;
  background:linear-gradient(90deg,var(--sky-deep),var(--sky) 55%,var(--sky-soft));
  transition:width .55s cubic-bezier(.22,.61,.36,1);
  position:relative;overflow:hidden;
}
.progress-fill::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.55),transparent);
  transform:translateX(-100%);
}
.progress-fill.active::after{animation:sheen 1.6s ease-in-out infinite;}
@keyframes sheen{to{transform:translateX(100%);}}
.progress-fill.paused{background:linear-gradient(90deg,#7c6bff,var(--sky));}

.progress-marks{display:flex;justify-content:space-between;margin-top:8px;font-size:10.5px;color:#9fb0c4;font-weight:600;}

/* Console */
.console{
  margin-top:6px;background:var(--term-bg);border-radius:14px;overflow:hidden;
  border:1px solid #0e1a30;box-shadow:inset 0 2px 20px rgba(0,0,0,0.4);
}
.console-bar{
  display:flex;align-items:center;gap:8px;padding:11px 14px;
  background:#0d1728;border-bottom:1px solid var(--term-line);
}
.dotset{display:flex;gap:6px;}
.dotset i{width:11px;height:11px;border-radius:50%;display:block;}
.dotset i:nth-child(1){background:#ff5f57;}
.dotset i:nth-child(2){background:#febc2e;}
.dotset i:nth-child(3){background:#28c840;}
.console-title{color:#7d93b3;font-size:12px;font-weight:600;margin-left:6px;font-family:'SFMono-Regular',ui-monospace,Menlo,Consolas,monospace;}
.console-live{margin-left:auto;display:flex;align-items:center;gap:6px;font-size:11px;color:#4f6party;}
.console-live span{color:#5f7590;font-size:11px;}
.live-dot{width:7px;height:7px;border-radius:50%;background:#3a4a63;}
.live-dot.on{background:var(--ok);box-shadow:0 0 0 3px rgba(47,208,122,0.2);animation:pulse 1.4s ease-in-out infinite;}
@keyframes pulse{50%{opacity:.4;}}

.console-body{
  height:270px;overflow-y:auto;padding:14px 16px;
  font-family:'SFMono-Regular',ui-monospace,Menlo,Consolas,monospace;
  font-size:12.5px;line-height:1.65;color:#cdd9ea;
}
.console-body::-webkit-scrollbar{width:9px;}
.console-body::-webkit-scrollbar-thumb{background:#22314c;border-radius:9px;}
.log{display:flex;gap:10px;padding:1px 0;white-space:pre-wrap;word-break:break-word;}
.log .ts{color:#546a8a;flex-shrink:0;}
.log .msg{flex:1;}
.log.l-info .msg{color:#cdd9ea;}
.log.l-ok .msg{color:var(--ok);}
.log.l-warn .msg{color:var(--warn);}
.log.l-err .msg{color:var(--err);}
.log.l-sys .msg{color:var(--sky-soft);}
.console-empty{color:#3f5474;font-style:italic;}

/* ============================================================
   Result panel
   ============================================================ */
.result{display:none;margin-top:20px;}
.result.show{display:block;animation:fadeUp .5s ease;}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.result video{width:100%;border-radius:14px;background:#000;display:block;box-shadow:var(--shadow-sm);}
.result-meta{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0;}
.meta-tag{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:650;
  padding:7px 12px;border-radius:999px;background:#f2f9ff;border:1px solid #d8ecff;color:var(--sky-deep);
}
.meta-tag svg{color:var(--sky);}

.footer{margin-top:44px;text-align:center;color:#9fb0c4;font-size:12.5px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;}
</style>
</head>
<body>
<div class="shell">

  <!-- ===================== TOP BAR ===================== -->
  <header class="topbar">
    <div class="brand">
      <div class="brand-mark" aria-hidden="true">
        <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
          <path d="M12 3v18"/><path d="M6 8v8"/><path d="M18 8v8"/><path d="M3 11v2"/><path d="M21 11v2"/>
        </svg>
      </div>
      <div>
        <div class="brand-name">Aurora Dub</div>
        <div class="brand-sub">Neural Video Localization Studio</div>
      </div>
    </div>
    <div class="status-pill" id="serverPill" title="Backend connection status">
      <span class="status-dot" id="serverDot"></span>
      <span id="serverStatusText">Checking backend…</span>
    </div>
  </header>

  <!-- ===================== HERO ===================== -->
  <section class="hero">
    <h1>Dub any video into <span class="grad">any language</span>, flawlessly.</h1>
    <p>Pick a video from your gallery — upload starts instantly. Our pipeline transcribes, translates, and re-voices it in one Gemini request, then matches the audio to your video's exact length with real-time progress streaming.</p>
  </section>

  <!-- ===================== MAIN GRID ===================== -->
  <div class="grid">

    <!-- LEFT: Upload + Setup -->
    <section class="card">
      <div class="card-title">
        <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
          <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/><polyline points="17 8 12 3 7 8"/><line x1="12" y1="3" x2="12" y2="15"/>
        </svg>
        Source Media
      </div>

      <!-- RGB Glow Dropbox -->
      <div class="drop-wrap" id="dropWrap">
        <div class="dropbox" id="dropbox" role="button" tabindex="0" aria-label="Upload a video file">
          <div class="drop-icon" aria-hidden="true">
            <svg width="30" height="30" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.9" stroke-linecap="round" stroke-linejoin="round">
              <rect x="2" y="4" width="20" height="16" rx="3"/><path d="m10 9 5 3-5 3z"/>
            </svg>
          </div>
          <h3>Drag &amp; drop your video</h3>
          <p>or click to browse your files</p>
          <span class="hint">MP4 · MOV · MKV · WEBM — up to your server limit</span>
        </div>
      </div>
      <input type="file" id="fileInput" accept="video/*" class="sr-only" />

      <!-- Selected file chip -->
      <div class="file-chip" id="fileChip">
        <span class="fico" aria-hidden="true">
          <svg width="26" height="26" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
            <path d="M15 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7z"/><polyline points="14 2 14 8 20 8"/><path d="m10 12 4 2-4 2z"/>
          </svg>
        </span>
        <div class="fmeta">
          <div class="fname" id="fileName">—</div>
          <div class="fsize" id="fileSize"></div>
        </div>
        <button class="fclear" id="fileClear" title="Remove file" aria-label="Remove file">
          <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>
        </button>
      </div>

      <hr style="border:none;border-top:1px solid var(--line);margin:22px 0;">

      <div class="card-title">
        <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
          <circle cx="12" cy="12" r="3"/><path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 1 1-2.83 2.83l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-4 0v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 1 1-2.83-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1 0-4h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 1 1 2.83-2.83l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 4 0v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 1 1 2.83 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 0 4h-.09a1.65 1.65 0 0 0-1.51 1z"/>
        </svg>
        Dubbing Setup
      </div>

      <div class="row2">
        <div class="field">
          <label for="targetLang">Target Language</label>
          <div class="control">
            <select id="targetLang">
              <option value="English">English</option>
              <option value="Spanish">Spanish</option>
              <option value="French">French</option>
              <option value="German">German</option>
              <option value="Italian">Italian</option>
              <option value="Portuguese">Portuguese</option>
              <option value="Hindi">Hindi</option>
              <option value="Bengali">Bengali</option>
              <option value="Arabic">Arabic</option>
              <option value="Japanese">Japanese</option>
              <option value="Korean">Korean</option>
              <option value="Chinese (Mandarin)">Chinese (Mandarin)</option>
              <option value="Russian">Russian</option>
              <option value="Turkish">Turkish</option>
              <option value="Dutch">Dutch</option>
              <option value="Indonesian">Indonesian</option>
              <option value="Vietnamese">Vietnamese</option>
              <option value="Thai">Thai</option>
              <option value="Polish">Polish</option>
              <option value="Ukrainian">Ukrainian</option>
            </select>
            <span class="chev" aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"/></svg></span>
          </div>
        </div>

        <div class="field">
          <label for="voiceSelect">Voice Selection</label>
          <div class="control">
            <select id="voiceSelect"></select>
            <span class="chev" aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"/></svg></span>
          </div>
        </div>
      </div>

      <div class="field">
        <label>Detected Source Language</label>
        <span class="src-badge detecting" id="srcBadge">
          <svg class="spin-i" id="srcSpin" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round">
            <path d="M21 12a9 9 0 1 1-6.219-8.56"/>
          </svg>
          <span id="srcText">Auto-Detecting…</span>
        </span>
      </div>

      <button class="btn" id="generateBtn" disabled>
        <span class="btn-ico" aria-hidden="true">
          <svg width="19" height="19" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polygon points="5 3 19 12 5 21 5 3"/></svg>
        </span>
        <span class="btn-label">Generate Dub</span>
        <span class="btn-spin" aria-hidden="true"><svg width="19" height="19" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round"><path d="M21 12a9 9 0 1 1-6.219-8.56"/></svg></span>
      </button>
    </section>

    <!-- RIGHT: Dashboard -->
    <section class="card glass">
      <div class="card-title">
        <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
          <path d="M3 3v18h18"/><path d="m19 9-5 5-4-4-3 3"/>
        </svg>
        Live Pipeline Dashboard
      </div>

      <div class="dash">
        <!-- Progress -->
        <div>
          <div class="progress-head">
            <div class="progress-stage">
              <svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><polyline points="12 6 12 12 16 14"/></svg>
              <span class="st-txt" id="stageText">Idle — awaiting media</span>
            </div>
            <div class="progress-pct" id="pctText">0%</div>
          </div>
          <div class="progress-track">
            <div class="progress-fill" id="progressFill"></div>
          </div>
          <div class="progress-marks">
            <span>Upload</span><span>Transcribe</span><span>Voice</span><span>Mux</span><span>Done</span>
          </div>
        </div>

        <!-- Console -->
        <div class="console">
          <div class="console-bar">
            <div class="dotset" aria-hidden="true"><i></i><i></i><i></i></div>
            <div class="console-title">pipeline://stream — SSE</div>
            <div class="console-live">
              <span class="live-dot" id="liveDot"></span>
              <span id="liveText">offline</span>
            </div>
          </div>
          <div class="console-body" id="console">
            <div class="console-empty">// Log stream is idle. Start a dub to see live server events.</div>
          </div>
        </div>
      </div>

      <!-- Result -->
      <div class="result" id="resultPanel">
        <hr style="border:none;border-top:1px solid var(--line);margin:20px 0;">
        <div class="card-title" style="margin-bottom:14px;">
          <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M9 11l3 3L22 4"/><path d="M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11"/></svg>
          Dubbed Result
        </div>
        <video id="resultVideo" controls playsinline></video>
        <div class="result-meta" id="resultMeta"></div>
        <a id="downloadBtn" class="btn" download>
          <span class="btn-ico" aria-hidden="true"><svg width="19" height="19" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/><polyline points="7 10 12 15 17 10"/><line x1="12" y1="15" x2="12" y2="3"/></svg></span>
          <span>Download Dubbed Video</span>
        </a>
      </div>
    </section>
  </div>

  <div class="footer">
    Aurora Dub · Neural dubbing pipeline · Streaming over Server-Sent Events
  </div>
</div>

<script>
"use strict";

/* ============================================================
   Config
   ============================================================ */
const API_BASE = "https://video-dubbing-api-85ur.onrender.com";

/* All 30 official Gemini native-TTS prebuilt voices, with Google's own
   one-word style tag for each (ai.google.dev/gemini-api/docs/speech-generation). */
const VOICES = [
  { name: "Zephyr",        style: "Bright"        },
  { name: "Puck",          style: "Upbeat"        },
  { name: "Charon",        style: "Informative"   },
  { name: "Kore",          style: "Firm"          },
  { name: "Fenrir",        style: "Excitable"     },
  { name: "Leda",          style: "Youthful"      },
  { name: "Orus",          style: "Firm"          },
  { name: "Aoede",         style: "Breezy"        },
  { name: "Callirrhoe",    style: "Easy-going"    },
  { name: "Autonoe",       style: "Bright"        },
  { name: "Enceladus",     style: "Breathy"       },
  { name: "Iapetus",       style: "Clear"         },
  { name: "Umbriel",       style: "Easy-going"    },
  { name: "Algieba",       style: "Smooth"        },
  { name: "Despina",       style: "Smooth"        },
  { name: "Erinome",       style: "Clear"         },
  { name: "Algenib",       style: "Gravelly"      },
  { name: "Rasalgethi",    style: "Informative"   },
  { name: "Laomedeia",     style: "Upbeat"        },
  { name: "Achernar",      style: "Soft"          },
  { name: "Alnilam",       style: "Firm"          },
  { name: "Schedar",       style: "Even"          },
  { name: "Gacrux",        style: "Mature"        },
  { name: "Pulcherrima",   style: "Forward"       },
  { name: "Achird",        style: "Friendly"      },
  { name: "Zubenelgenubi", style: "Casual"        },
  { name: "Vindemiatrix",  style: "Gentle"        },
  { name: "Sadachbia",     style: "Lively"        },
  { name: "Sadaltager",    style: "Knowledgeable" },
  { name: "Sulafat",       style: "Warm"          }
];
const DEFAULT_VOICE = "Kore";

/* ============================================================
   Element refs
   ============================================================ */
const $ = (id) => document.getElementById(id);

const dropWrap = $("dropWrap");
const dropbox = $("dropbox");
const fileInput = $("fileInput");
const fileChip = $("fileChip");
const fileNameEl = $("fileName");
const fileSizeEl = $("fileSize");
const fileClear = $("fileClear");

const targetLang = $("targetLang");
const voiceSelect = $("voiceSelect");
const generateBtn = $("generateBtn");

const srcBadge = $("srcBadge");
const srcText = $("srcText");
const srcSpin = $("srcSpin");

const stageText = $("stageText");
const pctText = $("pctText");
const progressFill = $("progressFill");
const consoleEl = $("console");
const liveDot = $("liveDot");
const liveText = $("liveText");

const resultPanel = $("resultPanel");
const resultVideo = $("resultVideo");
const resultMeta = $("resultMeta");
const downloadBtn = $("downloadBtn");

const serverDot = $("serverDot");
const serverStatusText = $("serverStatusText");

/* ============================================================
   App state
   ============================================================ */
const state = {
  file: null,
  running: false,
  sessionId: null,
  abort: null,
  targetLanguage: "English",
  resultObjectUrl: null,
  consoleCleared: false
};

/* ============================================================
   Utilities
   ============================================================ */
function fmtBytes(bytes){
  if(!bytes && bytes !== 0) return "";
  const u = ["B","KB","MB","GB"]; let i = 0; let n = bytes;
  while(n >= 1024 && i < u.length-1){ n/=1024; i++; }
  return n.toFixed(n < 10 && i>0 ? 1 : 0) + " " + u[i];
}
function nowStamp(){
  const d = new Date();
  const p = (x,l=2)=>String(x).padStart(l,"0");
  return `${p(d.getHours())}:${p(d.getMinutes())}:${p(d.getSeconds())}.${p(d.getMilliseconds(),3)}`;
}
function esc(s){
  return String(s).replace(/[&<>"']/g,(c)=>({ "&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;" }[c]));
}

/* Classify a raw log line into a severity for coloring. */
function logClass(msg){
  const m = msg.toUpperCase();
  if(m.includes("[ERROR]") || m.includes("FAIL") ) return "l-err";
  if(m.includes("[WARN]") || m.includes("WARNING")) return "l-warn";
  if(m.includes("[SUCCESS]") || m.includes("COMPLETE")) return "l-ok";
  if(m.includes("[SYS]") || m.includes("//")) return "l-sys";
  return "l-info";
}

function pushLog(msg, forceClass){
  if(!state.consoleCleared){
    consoleEl.innerHTML = "";
    state.consoleCleared = true;
  }
  const row = document.createElement("div");
  row.className = "log " + (forceClass || logClass(msg));
  row.innerHTML = `<span class="ts">${nowStamp()}</span><span class="msg">${esc(msg)}</span>`;
  consoleEl.appendChild(row);
  consoleEl.scrollTop = consoleEl.scrollHeight;
}

function resetConsole(){
  consoleEl.innerHTML = '<div class="console-empty">// Log stream is idle. Start a dub to see live server events.</div>';
  state.consoleCleared = false;
}

function setLive(on){
  liveDot.classList.toggle("on", !!on);
  liveText.textContent = on ? "streaming" : "offline";
}

function setProgress(percent, message){
  const p = Math.max(0, Math.min(100, Math.round(percent)));
  progressFill.style.width = p + "%";
  pctText.textContent = p + "%";
  if(message) stageText.textContent = message;
}

function setStage(txt){ stageText.textContent = txt; }

/* ============================================================
   Source language badge
   ============================================================ */
function lockSourceLanguage(lang){
  if(!lang || lang === "Unknown") return;
  srcBadge.classList.remove("detecting");
  srcBadge.classList.add("locked");
  srcSpin.style.display = "none";
  srcText.textContent = lang;
}
function resetSourceLanguage(){
  srcBadge.classList.remove("locked");
  srcBadge.classList.add("detecting");
  srcSpin.style.display = "";
  srcText.textContent = "Auto-Detecting…";
}

/* ============================================================
   Voice selectors
   ============================================================ */
function buildMainVoiceSelect(){
  voiceSelect.innerHTML = "";
  VOICES.forEach(v=>{
    const o = document.createElement("option");
    o.value = v.name;
    o.textContent = `${v.name} · ${v.style}`;
    voiceSelect.appendChild(o);
  });
  voiceSelect.value = DEFAULT_VOICE;
}

/* ============================================================
   File handling
   ============================================================ */
function acceptFile(file){
  if(!file) return;
  if(!file.type.startsWith("video/") && !/\.(mp4|mov|mkv|webm|avi|m4v)$/i.test(file.name)){
    pushLog("[WARN] Selected file does not look like a video. Proceeding anyway.", "l-warn");
  }
  state.file = file;
  fileNameEl.textContent = file.name;
  fileSizeEl.textContent = fmtBytes(file.size);
  fileChip.classList.add("show");
  dropWrap.classList.add("has-file");
  refreshGenerateState();
  // Upload starts the instant a video is picked (from the gallery, a file
  // browser, or drag-and-drop) — no extra tap needed.
  if(!state.running) startDub();
}
function clearFile(){
  state.file = null;
  fileInput.value = "";
  fileChip.classList.remove("show");
  dropWrap.classList.remove("has-file");
  refreshGenerateState();
}
function refreshGenerateState(){
  generateBtn.disabled = !state.file || state.running;
}

dropbox.addEventListener("click", ()=> fileInput.click());
dropbox.addEventListener("keydown", (e)=>{ if(e.key==="Enter"||e.key===" "){ e.preventDefault(); fileInput.click(); }});
fileInput.addEventListener("change", ()=> acceptFile(fileInput.files[0]));
fileClear.addEventListener("click", clearFile);

["dragenter","dragover"].forEach(ev=>{
  dropWrap.addEventListener(ev,(e)=>{ e.preventDefault(); e.stopPropagation(); dropWrap.classList.add("dragging"); });
});
["dragleave","dragend","drop"].forEach(ev=>{
  dropWrap.addEventListener(ev,(e)=>{ e.preventDefault(); e.stopPropagation(); if(ev!=="drop") dropWrap.classList.remove("dragging"); });
});
dropWrap.addEventListener("drop",(e)=>{
  dropWrap.classList.remove("dragging");
  const f = e.dataTransfer && e.dataTransfer.files && e.dataTransfer.files[0];
  if(f) acceptFile(f);
});
/* Prevent the browser from opening the file when dropped outside the box */
window.addEventListener("dragover",(e)=> e.preventDefault());
window.addEventListener("drop",(e)=> e.preventDefault());

/* ============================================================
   SSE-over-fetch reader
   Parses text/event-stream framing from a POST response body.
   ============================================================ */
async function readSSE(response, onEvent){
  if(!response.ok){
    let detail = "";
    try{ const j = await response.json(); detail = j.detail || JSON.stringify(j); }
    catch(_){ try{ detail = await response.text(); }catch(__){} }
    throw new Error(`HTTP ${response.status}${detail ? " — " + detail : ""}`);
  }
  if(!response.body) throw new Error("Streaming not supported by this browser.");

  const reader = response.body.getReader();
  const decoder = new TextDecoder("utf-8");
  let buffer = "";

  while(true){
    const { value, done } = await reader.read();
    if(done) break;
    buffer += decoder.decode(value, { stream:true });

    // Split complete events on blank line (handle \n\n and \r\n\r\n)
    let sep;
    while((sep = buffer.search(/\r?\n\r?\n/)) !== -1){
      const rawEvent = buffer.slice(0, sep);
      buffer = buffer.slice(sep + (buffer[sep] === "\r" ? 4 : 2));
      const parsed = parseEventBlock(rawEvent);
      if(parsed) onEvent(parsed.event, parsed.data);
    }
  }
  // Flush any trailing event without a terminating blank line
  const tail = buffer.trim();
  if(tail){
    const parsed = parseEventBlock(tail);
    if(parsed) onEvent(parsed.event, parsed.data);
  }
}

function parseEventBlock(block){
  const lines = block.split(/\r?\n/);
  let event = "message";
  const dataLines = [];
  for(const line of lines){
    if(!line || line.startsWith(":")) continue;      // comment / keep-alive
    if(line.startsWith("event:")) event = line.slice(6).trim();
    else if(line.startsWith("data:")) dataLines.push(line.slice(5).replace(/^ /,""));
  }
  if(dataLines.length === 0 && event === "message") return null;
  return { event, data: dataLines.join("\n") };
}

function safeJSON(str){
  try{ return JSON.parse(str); }catch(_){ return null; }
}

/* ============================================================
   Central SSE event handler for the /dub stream
   ============================================================ */
function handleSSEEvent(event, data){
  switch(event){
    case "log": {
      pushLog(data);
      const m = /source language detected:\s*(.+)/i.exec(data);
      if(m) lockSourceLanguage(m[1].trim());
      break;
    }
    case "progress": {
      const p = safeJSON(data);
      if(p && typeof p.percent === "number"){
        progressFill.classList.add("active");
        progressFill.classList.remove("paused");
        setProgress(p.percent, p.message || undefined);
      }
      break;
    }
    case "data": {
      const d = safeJSON(data);
      if(!d) break;
      if(d.source_language) lockSourceLanguage(d.source_language);
      if(d.session_id) state.sessionId = d.session_id;
      break;
    }
    case "error": {
      pushLog(String(data), "l-err");
      failRun("Backend reported an error.");
      break;
    }
    case "done": {
      const d = safeJSON(data) || {};
      finishRun(d);
      break;
    }
    default: {
      if(data) pushLog(`[${event}] ${data}`);
    }
  }
}

/* ============================================================
   Run lifecycle
   ============================================================ */
function startRunUI(){
  state.running = true;
  state.consoleCleared = false;
  generateBtn.classList.add("loading");
  generateBtn.disabled = true;
  resultPanel.classList.remove("show");
  progressFill.classList.remove("paused");
  progressFill.classList.add("active");
  setProgress(0, "Initializing…");
  resetSourceLanguage();
  setLive(true);
}

function endRunUI(){
  state.running = false;
  generateBtn.classList.remove("loading");
  progressFill.classList.remove("active");
  setLive(false);
  refreshGenerateState();
}

function failRun(reason){
  pushLog("[WARN] " + (reason || "Run stopped.") + " State reset.", "l-warn");
  if(state.abort){ try{ state.abort.abort(); }catch(_){}} 
  endRunUI();
}

function finishRun(d){
  setProgress(100, "Complete");
  pushLog("[SUCCESS] Dubbing finished. Preparing preview…", "l-ok");
  endRunUI();
  const sid = d.session_id || state.sessionId;
  if(sid){ state.sessionId = sid; presentResult(sid, d); }
}

/* ============================================================
   Result presentation + single-shot download
   The backend deletes the session after /download streams, so we fetch
   the file ONCE into an object URL and reuse it for both preview + save.
   ============================================================ */
async function presentResult(sessionId, meta){
  // Build meta tags
  resultMeta.innerHTML = "";
  const tags = [];
  if(meta.source_language) tags.push(["Source", meta.source_language]);
  if(meta.target_language) tags.push(["Target", meta.target_language]);
  if(typeof meta.segments !== "undefined") tags.push(["Segments", meta.segments]);
  tags.forEach(([k,v])=>{
    const el = document.createElement("span");
    el.className = "meta-tag";
    el.innerHTML = `<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg> ${esc(k)}: ${esc(String(v))}`;
    resultMeta.appendChild(el);
  });

  resultPanel.classList.add("show");
  const url = `${API_BASE}/download/${encodeURIComponent(sessionId)}`;

  try{
    pushLog("[INFO] Fetching dubbed video stream from server…");
    const res = await fetch(url, { method:"GET" });
    if(!res.ok) throw new Error("HTTP " + res.status);
    const blob = await res.blob();

    if(state.resultObjectUrl){ URL.revokeObjectURL(state.resultObjectUrl); }
    state.resultObjectUrl = URL.createObjectURL(blob);

    resultVideo.src = state.resultObjectUrl;
    downloadBtn.href = state.resultObjectUrl;
    downloadBtn.setAttribute("download", `dubbed_${sessionId}.mp4`);
    pushLog("[SUCCESS] Preview ready. Download available.", "l-ok");
  }catch(err){
    pushLog("[ERROR] Could not retrieve the dubbed file: " + err.message, "l-err");
    // Fallback: let the browser hit the endpoint directly on click.
    resultVideo.src = url;
    downloadBtn.href = url;
    downloadBtn.setAttribute("download", `dubbed_${sessionId}.mp4`);
  }
}

/* ============================================================
   Network: /dub
   ============================================================ */
async function startDub(){
  if(!state.file || state.running) return;

  state.targetLanguage = targetLang.value;
  startRunUI();
  pushLog(`[SYS] Uploading "${state.file.name}" (${fmtBytes(state.file.size)})…`, "l-sys");
  pushLog(`[INFO] Target language: ${targetLang.value} · Voice: ${voiceSelect.value}`);

  const fd = new FormData();
  fd.append("file", state.file);
  fd.append("target_language", targetLang.value);
  fd.append("voice_name", voiceSelect.value);

  state.abort = new AbortController();
  try{
    const res = await fetch(`${API_BASE}/dub`, { method:"POST", body:fd, signal:state.abort.signal });
    await readSSE(res, handleSSEEvent);
    // Stream ended. If we were mid-run without a done/error, note it.
    if(state.running){
      pushLog("[WARN] Stream closed unexpectedly before completion.", "l-warn");
      endRunUI();
    }
  }catch(err){
    if(err.name === "AbortError"){ /* user cancelled */ }
    else{
      pushLog("[ERROR] Connection failed: " + err.message, "l-err");
      failRun("Upload/stream error.");
    }
  }
}

generateBtn.addEventListener("click", startDub);

/* ============================================================
   Backend health check
   ============================================================ */
async function checkHealth(){
  try{
    const res = await fetch(`${API_BASE}/health`, { method:"GET" });
    const j = await res.json();
    if(j.status === "ok"){
      const hasKeys = (j.gemini_keys_configured|0) > 0 && (j.groq_keys_configured|0) > 0;
      serverDot.style.background = hasKeys ? "var(--ok)" : "var(--warn)";
      serverStatusText.textContent = hasKeys ? "Backend online" : "Online · API key missing";
    }else{
      serverDot.style.background = "var(--warn)";
      serverStatusText.textContent = "Backend degraded";
    }
  }catch(_){
    serverDot.style.background = "var(--err)";
    serverStatusText.textContent = "Backend unreachable";
  }
}

/* ============================================================
   Init
   ============================================================ */
buildMainVoiceSelect();
resetConsole();
refreshGenerateState();
checkHealth();
</script>
</body>
</html>