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article-summarizer
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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <meta name="color-scheme" content="dark" />
  <title>AI Article Summarizer · Qwen + Kokoro</title>
  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap" rel="stylesheet" />
  <style>
    :root{
      --bg-0:#0b0f17;
      --bg-1:#0f1624;
      --bg-2:#121a2b;
      --glass: rgba(255,255,255,.04);
      --muted: #9aa4bf;
      --text: #e7ecf8;
      --accent-1:#6d6aff;
      --accent-2:#7b5cff;
      --accent-3:#00d4ff;
      --ok:#21d19f;
      --warn:#ffb84d;
      --err:#ff6b6b;
      --ring: 0 0 0 1px rgba(255,255,255,.07), 0 0 0 6px rgba(124, 58, 237, .12);
      --shadow: 0 20px 60px rgba(0,0,0,.45), 0 8px 20px rgba(0,0,0,.35);
      --radius-xl:22px;
      --radius-lg:16px;
      --radius-md:12px;
      --radius-sm:10px;
      --grad: conic-gradient(from 220deg at 50% 50%, var(--accent-1), var(--accent-2), var(--accent-3), var(--accent-1));
    }
    *{box-sizing:border-box}
    html,body{height:100%}
    body{
      margin:0;
      font-family:Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
      color:var(--text);
      background:
        radial-gradient(1200px 600px at -10% -10%, rgba(109,106,255,.20), transparent 50%),
        radial-gradient(900px 500px at 120% -10%, rgba(0,212,255,.16), transparent 55%),
        radial-gradient(1200px 900px at 50% 120%, rgba(123,92,255,.18), transparent 60%),
        linear-gradient(180deg, var(--bg-0), var(--bg-1) 50%, var(--bg-2));
      overflow-y:auto;
    }

    /* Top progress bar */
    .bar{
      position:fixed; inset:0 0 auto 0; height:3px; z-index:9999;
      background: linear-gradient(90deg, var(--accent-3), var(--accent-2), var(--accent-1));
      background-size:200% 100%;
      transform:scaleX(0); transform-origin:left;
      box-shadow:0 0 18px rgba(0,212,255,.45);
      transition:transform .2s ease-out;
      animation:bar-move 2.2s linear infinite;
    }
    @keyframes bar-move{0%{background-position:0 0}100%{background-position:200% 0}}

    .wrap{
      max-width:1080px; margin:72px auto; padding:0 24px;
    }
    .hero{
      display:flex; flex-direction:column; align-items:center; gap:14px; margin-bottom:28px; text-align:center;
    }
    .hero-badge{
      display:inline-flex; align-items:center; gap:10px; padding:8px 12px; border-radius:999px;
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
      border:1px solid rgba(255,255,255,.08);
      backdrop-filter: blur(8px);
      box-shadow: var(--shadow);
    }
    .dot{width:8px;height:8px;border-radius:50%; background:var(--warn); box-shadow:0 0 0 6px rgba(255,184,77,.14)}
    .dot.ready{background:var(--ok); box-shadow:0 0 0 6px rgba(33,209,159,.14)}
    .hero h1{font-size: clamp(28px, 5vw, 44px); margin:0; font-weight:800; letter-spacing:-.02em; line-height:1.05}
    .grad-text{
      background: linear-gradient(92deg, #f0f3ff, #bfc8ff 30%, #9ad8ff 60%, #c2b5ff 90%);
      -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
    }
    .hero p{margin:0; color:var(--muted); font-size:15.5px}

    .panel{
      position:relative;
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.08);
      border-radius: var(--radius-xl);
      padding:24px;
      box-shadow: var(--shadow);
      overflow:hidden;
    }
    .panel::before{
      content:"";
      position:absolute; inset:-1px;
      border-radius:inherit;
      padding:1px;
      background:linear-gradient(180deg, rgba(175,134,255,.35) 0%, rgba(0,212,255,.18) 100%);
      -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
      -webkit-mask-composite:xor; mask-composite: exclude;
      pointer-events:none;
    }

    .form-grid{display:grid; grid-template-columns:1fr auto; gap:12px; align-items:center}
    .input{
      width:100%;
      background:rgba(0,0,0,.35);
      border:1px solid rgba(255,255,255,.12);
      border-radius:var(--radius-lg);
      padding:14px 16px;
      color:var(--text);
      font-size:15.5px;
      outline:none;
      transition:border .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .input::placeholder{color:#7f8aad}
    .input:focus{border-color:rgba(0,212,255,.55); box-shadow: var(--ring)}

    .btn{
      position:relative;
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      padding:14px 18px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(255,255,255,.12);
      color:#0b0f17; font-weight:700; letter-spacing:.02em;
      background: linear-gradient(135deg, #7b5cff 0%, #00d4ff 100%);
      box-shadow: 0 10px 30px rgba(0,212,255,.35), inset 0 1px 0 rgba(255,255,255,.15);
      cursor:pointer; user-select:none;
      transition: transform .08s ease, filter .15s ease, box-shadow .2s ease, opacity .2s ease;
    }
    .btn:hover{transform: translateY(-1px)}
    .btn:active{transform: translateY(0)}
    .btn:disabled{opacity:.55; cursor:not-allowed; filter:grayscale(.2)}

    .row{display:flex; flex-wrap:wrap; gap:12px; align-items:center; margin-top:14px}

    /* Switch */
    .switch{
      display:inline-flex; align-items:center; gap:12px; cursor:pointer; user-select:none;
      padding:10px 12px; border-radius:999px; background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.08);
    }
    .switch .track{
      width:44px; height:24px; background:rgba(255,255,255,.12); border-radius:999px; position:relative; transition: background .2s ease;
    }
    .switch .thumb{
      width:18px; height:18px; border-radius:50%; background:white; position:absolute; top:3px; left:3px;
      box-shadow:0 4px 16px rgba(0,0,0,.45);
      transition:left .18s ease, background .2s ease, transform .18s ease;
    }
    .switch input{display:none}
    .switch input:checked + .track{background:linear-gradient(90deg, #00d4ff, #7b5cff)}
    .switch input:checked + .track .thumb{left:23px; background:#0b0f17; transform:scale(1.05)}

    /* Collapsible voice panel */
    .collapse{
      overflow:hidden; max-height:0; opacity:0; transform: translateY(-4px);
      transition:max-height .35s ease, opacity .25s ease, transform .25s ease;
    }
    .collapse.open{max-height:520px; opacity:1; transform:none}

    .voices{
      display:grid; gap:12px; margin-top:12px;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
    .voice{
      position:relative; padding:14px; border-radius:var(--radius-md);
      background:rgba(255,255,255,.03); border:1px solid rgba(255,255,255,.08);
      transition: transform .12s ease, box-shadow .2s ease, border .2s ease, background .2s ease;
      cursor:pointer;
    }
    .voice:hover{transform: translateY(-2px); box-shadow: var(--shadow); border-color: rgba(0,212,255,.25)}
    .voice.selected{background:linear-gradient(180deg, rgba(0,212,255,.08), rgba(123,92,255,.08)); border-color: rgba(123,92,255,.55)}
    .voice .name{font-weight:700; letter-spacing:.01em}
    .voice .meta{color:var(--muted); font-size:12.5px; margin-top:6px; display:flex; gap:10px; align-items:center}
    .voice .badge{
      font-size:11px; padding:3px 8px; border-radius:999px; border:1px solid rgba(255,255,255,.14);
      background:rgba(255,255,255,.05);
    }

    /* Results */
    .results{margin-top:18px}
    .chips{display:flex; flex-wrap:wrap; gap:10px}
    .chip{
      font-size:12.5px; color:#cdd6f6;
      padding:8px 12px; border-radius:999px; border:1px solid rgba(255,255,255,.08); background:rgba(255,255,255,.03);
    }
    .toolbar{
      display:flex; gap:10px; flex-wrap:wrap; margin-top:12px
    }
    .tbtn{
      display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:10px;
      background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.1); color:var(--text);
      cursor:pointer; font-size:13px; transition: background .15s ease, transform .08s ease;
    }
    .tbtn:hover{background:rgba(255,255,255,.08)}
    .tbtn:active{transform: translateY(1px)}

    .summary{
      margin-top:14px;
      background:rgba(0,0,0,.35);
      border:1px solid rgba(255,255,255,.1);
      border-radius:var(--radius-lg);
      padding:18px;
      line-height:1.7;
      font-size:15.5px;
      white-space:pre-wrap;
      min-height:120px;
    }

    /* Skeleton */
    .skeleton{
      position:relative; overflow:hidden; background:rgba(255,255,255,.06); border-radius:10px;
    }
    .skeleton::after{
      content:""; position:absolute; inset:0;
      background:linear-gradient(100deg, transparent, rgba(255,255,255,.10), transparent);
      transform:translateX(-100%); animation:shine 1.2s infinite;
    }
    @keyframes shine{to{transform:translateX(100%)}}

    /* Messages */
    .msg{
      margin-top:14px; padding:12px 14px; border-radius:12px; border:1px solid rgba(255,255,255,.08);
      display:none; font-size:14px;
    }
    .msg.err{display:block; color:#ffd8d8; background:rgba(255,107,107,.08)}
    .msg.ok{display:block; color:#d9fff4; background:rgba(33,209,159,.08)}

    /* Audio card */
    .audio{
      margin-top:14px; padding:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08); border-radius:var(--radius-lg);
    }
    audio{width:100%; height:40px; outline:none}

    /* Footer note */
    .foot{margin-top:14px; text-align:center; color:#7f8aad; font-size:12.5px}

    @media (max-width:720px){
      .form-grid{grid-template-columns: 1fr}
      .btn{width:100%}
    }
  </style>
</head>
<body>
  <div class="bar" id="bar"></div>

  <div class="wrap">
    <header class="hero">
      <div class="hero-badge" id="statusBadge">
        <span class="dot" id="statusDot"></span>
        <span id="statusText">Loading AI models…</span>
      </div>
      <h1><span class="grad-text">AI Article Summarizer</span></h1>
      <p>Qwen3-0.6B summarization · Kokoro neural TTS · smooth, private, fast</p>
    </header>

    <section class="panel">
      <form id="summarizerForm" autocomplete="on">
        <div class="form-grid">
          <input id="articleUrl" class="input" type="url" inputmode="url"
                 placeholder="Paste an article URL (https://…)" required />
          <button id="submitBtn" class="btn" type="submit">
            ✨ Summarize
          </button>
        </div>

        <div class="row">
          <label class="switch" title="Generate audio with Kokoro TTS">
            <input id="generateAudio" type="checkbox" />
            <span class="track"><span class="thumb"></span></span>
            <span>🎵 Text-to-Speech</span>
          </label>

          <span class="chip">Models: Qwen3-0.6B · Kokoro</span>
          <span class="chip">On-device processing</span>
        </div>

        <div id="voiceSection" class="collapse" aria-hidden="true">
          <div class="voices" id="voiceGrid">
            <!-- Injected -->
          </div>
        </div>
      </form>

      <!-- Loading skeleton -->
      <div id="loadingSection" style="display:none; margin-top:18px">
        <div class="skeleton" style="height:18px; width:42%; margin-bottom:10px"></div>
        <div class="skeleton" style="height:14px; width:90%; margin-bottom:8px"></div>
        <div class="skeleton" style="height:14px; width:86%; margin-bottom:8px"></div>
        <div class="skeleton" style="height:14px; width:88%; margin-bottom:8px"></div>
        <div class="skeleton" style="height:14px; width:60%; margin-bottom:8px"></div>
      </div>

      <!-- Results -->
      <div id="resultSection" class="results" style="display:none">
        <div class="chips" id="stats"></div>

        <div class="toolbar">
          <button class="tbtn" id="copyBtn" type="button">📋 Copy summary</button>
          <a class="tbtn" id="downloadAudioBtn" href="#" download style="display:none">⬇️ Download audio</a>
        </div>

        <div id="summaryContent" class="summary"></div>

        <div id="audioSection" class="audio" style="display:none">
          <div style="display:flex; justify-content:space-between; align-items:center; margin-bottom:6px">
            <strong>🎧 Audio Playback</strong>
            <span id="duration" style="color:var(--muted); font-size:12.5px"></span>
          </div>
          <audio id="audioPlayer" controls preload="none"></audio>
        </div>
      </div>

      <div id="errorMessage" class="msg err"></div>
      <div id="successMessage" class="msg ok"></div>
    </section>

    <p class="foot">Tip: turn on TTS and pick a voice you like. We’ll remember your last choice.</p>
  </div>

  <script>
    // ---------------- State ----------------
    let modelsReady = false;
    let selectedVoice = localStorage.getItem("voiceId") || "af_heart";
    const bar = document.getElementById("bar");

    // --------------- Utilities --------------
    const $ = (sel) => document.querySelector(sel);
    function showBar(active) {
      bar.style.transform = active ? "scaleX(1)" : "scaleX(0)";
    }
    function setStatus(ready, error){
      const dot = $("#statusDot");
      const text = $("#statusText");
      const badge = $("#statusBadge");
      if (error){
        dot.classList.remove("ready");
        text.textContent = "Model error: " + error;
        badge.style.borderColor = "rgba(255,107,107,.45)";
        return;
      }
      if (ready){
        dot.classList.add("ready");
        text.textContent = "Models ready";
      } else {
        dot.classList.remove("ready");
        text.textContent = "Loading AI models…";
      }
    }
    function chip(text){ const span = document.createElement("span"); span.className="chip"; span.textContent=text; return span; }
    function fmt(x){ return new Intl.NumberFormat().format(x); }

    // ------------- Model status poll ---------
    async function checkModelStatus(){
      try{
        const res = await fetch("/status");
        const s = await res.json();
        modelsReady = !!s.loaded;
        setStatus(modelsReady, s.error || null);
        if (!modelsReady && !s.error) setTimeout(checkModelStatus, 1500);
        if (modelsReady) { await loadVoices(); }
      }catch(e){
        setTimeout(checkModelStatus, 2000);
      }
    }

    // ------------- Voice loading -------------
    async function loadVoices(){
      try{
        const res = await fetch("/voices");
        const voices = await res.json();
        const grid = $("#voiceGrid");
        grid.innerHTML = "";
        voices.forEach(v=>{
          const el = document.createElement("div");
          el.className = "voice" + (v.id === selectedVoice ? " selected":"");
          el.dataset.voice = v.id;
          el.innerHTML = `
            <div class="name">${v.name}</div>
            <div class="meta">
              <span class="badge">Grade ${v.grade}</span>
              <span>${v.description || ""}</span>
            </div>`;
          el.addEventListener("click", ()=>{
            document.querySelectorAll(".voice").forEach(x=>x.classList.remove("selected"));
            el.classList.add("selected");
            selectedVoice = v.id;
            localStorage.setItem("voiceId", selectedVoice);
          });
          grid.appendChild(el);
        });
      }catch(e){
        // ignore
      }
    }

    // ------------- Collapsible voices --------
    const generateAudio = $("#generateAudio");
    const voiceSection = $("#voiceSection");
    function toggleVoices(open){
      voiceSection.classList.toggle("open", !!open);
      voiceSection.setAttribute("aria-hidden", open ? "false" : "true");
    }
    generateAudio.addEventListener("change", e=> toggleVoices(e.target.checked));
    toggleVoices(generateAudio.checked); // on load

    // ------------- Form submit ----------------
    const form = $("#summarizerForm");
    const loading = $("#loadingSection");
    const result = $("#resultSection");
    const errorBox = $("#errorMessage");
    const okBox = $("#successMessage");
    const submitBtn = $("#submitBtn");
    const urlInput = $("#articleUrl");

    form.addEventListener("submit", async (e)=>{
      e.preventDefault();
      errorBox.style.display="none"; okBox.style.display="none";

      if (!modelsReady){
        errorBox.textContent = "Please wait for the AI models to finish loading.";
        errorBox.style.display = "block";
        return;
      }
      const url = urlInput.value.trim();
      if (!url){ return; }

      submitBtn.disabled = true;
      showBar(true);
      loading.style.display = "block";
      result.style.display = "none";

      try{
        const res = await fetch("/process", {
          method: "POST",
          headers: {"Content-Type":"application/json"},
          body: JSON.stringify({
            url,
            generate_audio: generateAudio.checked,
            voice: selectedVoice
          })
        });
        const data = await res.json();

        loading.style.display = "none";
        submitBtn.disabled = false;
        showBar(false);

        if (!data.success){
          errorBox.textContent = data.error || "Something went wrong.";
          errorBox.style.display = "block";
          return;
        }
        renderResult(data);
        okBox.textContent = "Done!";
        okBox.style.display = "block";
        setTimeout(()=> okBox.style.display="none", 1800);

      }catch(err){
        loading.style.display="none";
        submitBtn.disabled=false;
        showBar(false);
        errorBox.textContent = "Network error: " + (err?.message || err);
        errorBox.style.display = "block";
      }
    });

    // ------------- Render results -------------
    const stats = $("#stats");
    const summaryEl = $("#summaryContent");
    const audioWrap = $("#audioSection");
    const audioEl = $("#audioPlayer");
    const dlBtn = $("#downloadAudioBtn");
    const durationLabel = $("#duration");
    const copyBtn = $("#copyBtn");

    function renderResult(r){
      // Stats
      stats.innerHTML = "";
      stats.appendChild(chip(`📄 ${fmt(r.article_length)} → ${fmt(r.summary_length)} chars`));
      stats.appendChild(chip(`📉 ${r.compression_ratio}% compression`));
      stats.appendChild(chip(`🕒 ${r.timestamp}`));

      // Summary
      summaryEl.textContent = r.summary || "";
      result.style.display = "block";

      // Audio
      if (r.audio_file){
        audioEl.src = r.audio_file;
        audioWrap.style.display = "block";
        durationLabel.textContent = `${r.audio_duration}s`;
        dlBtn.style.display = "inline-flex";
        dlBtn.href = r.audio_file;
        dlBtn.download = r.audio_file.split("/").pop() || "summary.wav";
      } else {
        audioWrap.style.display = "none";
        dlBtn.style.display = "none";
      }
    }

    // Copy summary
    copyBtn.addEventListener("click", async ()=>{
      try{
        await navigator.clipboard.writeText(summaryEl.textContent || "");
        copyBtn.textContent = "✅ Copied";
        setTimeout(()=> copyBtn.textContent = "📋 Copy summary", 900);
      }catch(e){
        // ignore
      }
    });

    // ------------- Quality of life -------------
    // Paste on Cmd/Ctrl+V if input empty
    window.addEventListener("paste", (e)=>{
      if(document.activeElement !== urlInput && !urlInput.value){
        const t = (e.clipboardData || window.clipboardData).getData("text");
        if (t?.startsWith("http")){ urlInput.value = t; }
      }
    });

    // Init
    document.addEventListener("DOMContentLoaded", ()=>{
      checkModelStatus();
      // Restore voice toggle state hint
      if (localStorage.getItem("voiceId")) selectedVoice = localStorage.getItem("voiceId");
    });
  </script>
</body>
</html>