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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>Antaram · Agentic SLM</title>
<style>
  :root{
    --bg:#0b0f16; --panel:#10151f; --panel2:#1a2130; --border:#28313f;
    --text:#e6edf3; --muted:#8b949e; --accent:#3b82f6; --accent2:#22c55e;
    --user:#1f6feb; --assist:#1a2130; --danger:#f04747; --warn:#e3a008;
  }
  *{box-sizing:border-box}
  body{margin:0;font-family:'Segoe UI',system-ui,sans-serif;background:
    radial-gradient(1200px 600px at 80% -10%,rgba(59,130,246,.10),transparent),
    radial-gradient(1000px 500px at 0% 110%,rgba(34,197,94,.08),transparent),var(--bg);
    color:var(--text);height:100vh;display:flex;flex-direction:column}
  header{display:flex;align-items:center;gap:12px;padding:12px 18px;background:rgba(16,21,31,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
  header h1{font-size:17px;margin:0;font-weight:800;letter-spacing:.2px;background:linear-gradient(90deg,#3b82f6,#22c55e);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
  header .brand{display:flex;flex-direction:column;line-height:1.15;user-select:none}
  header .tag{font-size:10.5px;color:var(--muted);font-weight:400}
  header .dot{width:9px;height:9px;border-radius:50%;background:#6e7681;box-shadow:0 0 0 0 rgba(34,197,94,.5);transition:.3s}
  header .dot.ok{background:var(--accent2);box-shadow:0 0 10px 1px rgba(34,197,94,.5)}
  header .spacer{flex:1}
  .pill{font-size:11px;color:var(--muted);background:var(--panel2);border:1px solid var(--border);padding:4px 9px;border-radius:20px;white-space:nowrap}
  button{font-family:inherit;cursor:pointer;border:1px solid var(--border);background:var(--panel2);color:var(--text);border-radius:8px;padding:6px 12px;font-size:13px;transition:.15s}
  button:hover{border-color:var(--accent)}
  button.primary{background:var(--accent);border-color:var(--accent);color:#fff}
  button.primary:hover{filter:brightness(1.1)}
  button.danger{border-color:var(--danger);color:#ffb4b4}
  button.danger:hover{background:rgba(240,71,71,.12)}
  button:disabled{opacity:.5;cursor:not-allowed}
  #keyInput{background:var(--panel2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:6px 10px;font-size:12px;width:150px}
  #keyInput:focus{outline:none;border-color:var(--accent)}
  .usage-panel{position:fixed;top:58px;right:18px;background:var(--panel2);border:1px solid var(--border);border-radius:12px;padding:12px 14px;font-size:12px;display:none;z-index:20;min-width:230px;box-shadow:0 12px 40px rgba(0,0,0,.5)}
  .usage-panel.open{display:block}
  .usage-panel .r{display:flex;justify-content:space-between;gap:18px;padding:3px 0;color:var(--muted)}
  .usage-panel .r b{color:var(--text)}
  #chat{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px;scroll-behavior:smooth}
  #chat::-webkit-scrollbar{width:9px}#chat::-webkit-scrollbar-thumb{background:#2b3542;border-radius:8px}
  .welcome{margin:auto;text-align:center;color:var(--muted);max-width:440px}
  .welcome h2{color:var(--text);font-weight:700;margin:0 0 6px}
  .welcome .chips{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:16px}
  .welcome .chip{background:var(--panel2);border:1px solid var(--border);border-radius:20px;padding:7px 13px;font-size:12.5px;cursor:pointer}
  .welcome .chip:hover{border-color:var(--accent);color:var(--text)}
  .msg{max-width:78%;display:flex;flex-direction:column;gap:6px;animation:rise .25s ease}
  @keyframes rise{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
  .msg.user{align-self:flex-end;align-items:flex-end}
  .msg.assistant{align-self:flex-start}
  .bubble{padding:11px 14px;border-radius:14px;line-height:1.55;word-wrap:break-word;font-size:14px}
  .user .bubble{background:var(--user);color:#fff;border-bottom-right-radius:4px;white-space:pre-wrap}
  .assistant .bubble{background:var(--assist);border:1px solid var(--border);border-bottom-left-radius:4px}
  .bubble pre{background:#0b0f16;border:1px solid var(--border);border-radius:8px;padding:10px;overflow-x:auto;margin:8px 0}
  .bubble code{background:rgba(255,255,255,.07);padding:1px 5px;border-radius:4px;font-size:12.5px;font-family:'Cascadia Code',Consolas,monospace}
  .bubble pre code{background:none;padding:0}
  .bubble a{color:#79c0ff}
  .row{display:flex;align-items:center;gap:7px}
  .assistant .row{align-items:flex-start}
  .iconbtn{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:12px;padding:0;line-height:1;flex:none;color:var(--muted)}
  .iconbtn:hover{color:var(--text)}
  .meta{margin-top:2px;background:var(--panel2);border:1px solid var(--border);border-radius:10px;padding:10px 12px;font-size:12px;display:none;grid-template-columns:1fr 1fr;gap:8px 16px;max-width:430px}
  .meta.open{display:grid}
  .meta .item{display:flex;align-items:center;gap:7px;color:var(--muted)}
  .meta .item b{color:var(--text);font-weight:600}
  .meta .full{grid-column:1 / -1}
  .ico{font-size:14px}
  .ctxbar{height:7px;background:var(--bg);border:1px solid var(--border);border-radius:4px;overflow:hidden;width:100%;margin-top:2px}
  .ctxbar-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#22c55e);transition:width .3s}
  .typing .bubble{color:var(--muted)}
  .dots span{display:inline-block;width:6px;height:6px;margin:0 1px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite both}
  .dots span:nth-child(2){animation-delay:.2s}.dots span:nth-child(3){animation-delay:.4s}
  @keyframes blink{0%,80%,100%{opacity:.2}40%{opacity:1}}
  footer{padding:14px 18px;background:rgba(16,21,31,.85);backdrop-filter:blur(8px);border-top:1px solid var(--border)}
  .inputbar{display:flex;gap:10px;align-items:flex-end;max-width:900px;margin:0 auto}
  textarea{flex:1;resize:none;background:var(--panel2);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:11px 13px;font-family:inherit;font-size:14px;max-height:140px;line-height:1.4}
  textarea:focus{outline:none;border-color:var(--accent)}
  .hint{font-size:11px;color:var(--muted);text-align:center;margin-top:8px}

  /* ---------- hidden admin console ---------- */
  .overlay{position:fixed;inset:0;background:rgba(3,6,12,.72);backdrop-filter:blur(4px);z-index:100;display:none;align-items:flex-start;justify-content:center;padding:40px 16px;overflow-y:auto}
  .overlay.open{display:flex}
  .card{background:var(--panel);border:1px solid var(--border);border-radius:16px;width:100%;max-width:760px;box-shadow:0 24px 80px rgba(0,0,0,.6)}
  .card .head{display:flex;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--border)}
  .card .head h2{margin:0;font-size:16px;font-weight:700}
  .card .head .spacer{flex:1}
  .card .body{padding:18px 20px}
  .login{max-width:360px;margin:8px auto 4px}
  label{display:block;font-size:12px;color:var(--muted);margin:12px 0 5px}
  .fld{width:100%;background:var(--panel2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:9px 11px;font-size:13px;font-family:inherit}
  .fld:focus{outline:none;border-color:var(--accent)}
  textarea.fld{resize:vertical;min-height:90px;line-height:1.45}
  .grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px}
  .err{color:#ffb4b4;font-size:12.5px;margin-top:10px;min-height:16px}
  .tabs{display:flex;gap:6px;padding:0 20px;border-bottom:1px solid var(--border);background:var(--panel)}
  .tab{background:none;border:none;border-bottom:2px solid transparent;border-radius:0;color:var(--muted);padding:11px 8px;font-size:13px}
  .tab.active{color:var(--text);border-bottom-color:var(--accent)}
  .tab:hover{color:var(--text)}
  .keyreveal{background:#0b1a10;border:1px solid #1f6f3f;border-radius:10px;padding:12px;margin-top:14px;font-size:13px}
  .keyreveal code{display:block;background:#06120a;border:1px solid #1f6f3f;border-radius:6px;padding:9px;word-break:break-all;color:#7ee787;margin:6px 0}
  .sendmsg{white-space:pre-wrap;background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:10px;font-size:12.5px;color:var(--text);margin-top:8px}
  table{width:100%;border-collapse:collapse;font-size:12.5px;margin-top:6px}
  th,td{text-align:left;padding:8px 8px;border-bottom:1px solid var(--border);vertical-align:middle}
  th{color:var(--muted);font-weight:600}
  .badge{display:inline-block;font-size:10.5px;padding:2px 7px;border-radius:20px;border:1px solid var(--border);color:var(--muted)}
  .badge.live{color:#7ee787;border-color:#1f6f3f}
  .badge.dead{color:#ffb4b4;border-color:#5f2330}
  .badge.adm{color:#ffd479;border-color:#6b5314}
  .badge.ag{color:#79c0ff;border-color:#23456b}
  .rowacts{display:flex;gap:6px}
  .tiny{font-size:11px;padding:4px 8px}
  .muted{color:var(--muted)}
  .scrollx{overflow-x:auto}
  @media(max-width:560px){.grid2{grid-template-columns:1fr}.msg{max-width:90%}}
</style>
</head>
<body>
  <header>
    <span id="dot" class="dot"></span>
    <div class="brand" id="brand">
      <h1>Antaram</h1>
      <span class="tag">SLM for agentic · by Team Triangle</span>
    </div>
    <span class="pill" id="modelPill">Antaram</span>
    <span class="pill" id="sessPill">session: —</span>
    <div class="spacer"></div>
    <button id="usageBtn" title="Usage stats">📊 Usage</button>
    <input id="keyInput" placeholder="API key" />
    <button id="newBtn">+ New chat</button>
  </header>
  <div id="usagePanel" class="usage-panel"></div>

  <div id="chat"></div>

  <footer>
    <div class="inputbar">
      <button id="attachBtn" title="Attach 1 image">📎</button>
      <input type="file" id="fileInput" accept="image/*" style="display:none" />
      <textarea id="input" rows="1" placeholder="Type a message…  (Enter to send, Shift+Enter for newline)"></textarea>
      <button id="sendBtn" class="primary">Send</button>
    </div>
    <div id="attachInfo" class="hint" style="display:none;color:var(--accent2)"></div>
    <div class="hint">📎 attach 1 image · tap ⓘ on a reply for tokens, time &amp; context. Token counts are estimates.</div>
  </footer>

  <!-- ======== HIDDEN ADMIN CONSOLE (Ctrl+Shift+A or #admin) ======== -->
  <div id="adminOverlay" class="overlay">
    <div class="card">
      <div class="head">
        <span style="font-size:18px">🛡️</span>
        <h2 id="adminTitle">Admin Console</h2>
        <div class="spacer"></div>
        <button id="adminLogout" class="tiny" style="display:none">Logout</button>
        <button id="adminClose" class="tiny">✕ Close</button>
      </div>

      <!-- login view -->
      <div id="adminLogin" class="body">
        <div class="login">
          <label>Username</label>
          <input id="alUser" class="fld" autocomplete="off" />
          <label>Password</label>
          <input id="alPass" class="fld" type="password" />
          <div class="err" id="alErr"></div>
          <button id="alBtn" class="primary" style="width:100%;margin-top:10px">Sign in</button>
        </div>
      </div>

      <!-- authed view -->
      <div id="adminPanel" style="display:none">
        <div class="tabs">
          <button class="tab active" data-tab="issue">Issue key</button>
          <button class="tab" data-tab="users">Users &amp; keys</button>
          <button class="tab" data-tab="sessions">Sessions</button>
          <button class="tab" data-tab="prompt">Global prompt</button>
        </div>

        <!-- issue key -->
        <div class="body tabpane" data-pane="issue">
          <div class="grid2">
            <div>
              <label>User name / label</label>
              <input id="ikName" class="fld" placeholder="e.g. Riya — Marketing" />
            </div>
            <div>
              <label>Role</label>
              <select id="ikRole" class="fld">
                <option value="user">user (chat + web search + image)</option>
                <option value="superadmin">superadmin (full access)</option>
              </select>
            </div>
            <div>
              <label>Expires in (days · 0 = lifetime)</label>
              <input id="ikTtl" class="fld" type="number" min="0" value="14" />
            </div>
            <div>
              <label>Max sessions (blank = unlimited)</label>
              <input id="ikMax" class="fld" type="number" min="1" placeholder="unlimited" />
            </div>
          </div>
          <label>AGENTS.md — per-user instructions (optional)</label>
          <div id="ikTmpl" style="display:flex;gap:6px;flex-wrap:wrap;margin-bottom:7px">
            <span class="muted" style="font-size:11.5px;align-self:center">Templates:</span>
            <button type="button" class="tiny" data-tmpl="friendly">😊 Friendly</button>
            <button type="button" class="tiny" data-tmpl="professional">💼 Professional</button>
            <button type="button" class="tiny" data-tmpl="concise">⚡ Concise expert</button>
            <button type="button" class="tiny" data-tmpl="support">🎧 Support agent</button>
            <button type="button" class="tiny" data-tmpl="clear">✕ Clear</button>
          </div>
          <textarea id="ikAgents" class="fld" placeholder="# Persona / rules for THIS user only&#10;- Always answer in formal English.&#10;- You are Riya's research assistant; focus on marketing.&#10;- Never discuss topics outside marketing.&#10;&#10;Tip: pick a template above — it fills in using the name you typed."></textarea>
          <div class="err" id="ikErr"></div>
          <button id="ikBtn" class="primary" style="margin-top:12px">Create user &amp; reveal key</button>
          <div id="ikReveal"></div>
        </div>

        <!-- users list -->
        <div class="body tabpane" data-pane="users" style="display:none">
          <div style="display:flex;align-items:center;gap:10px">
            <b style="font-size:13px">Issued keys</b>
            <span class="muted" id="ukCount"></span>
            <div class="spacer" style="flex:1"></div>
            <button id="ukRefresh" class="tiny">↻ Refresh</button>
          </div>
          <div class="scrollx"><table id="ukTable"></table></div>
          <!-- inline AGENTS.md editor -->
          <div id="agEditor" style="display:none;margin-top:14px;border-top:1px solid var(--border);padding-top:12px">
            <b style="font-size:13px">Edit AGENTS.md — <span id="agName" class="muted"></span></b>
            <textarea id="agText" class="fld" style="margin-top:8px"></textarea>
            <div class="err" id="agErr"></div>
            <div style="display:flex;gap:8px;margin-top:8px">
              <button id="agSave" class="primary tiny">Save</button>
              <button id="agCancel" class="tiny">Cancel</button>
            </div>
          </div>
        </div>

        <!-- sessions -->
        <div class="body tabpane" data-pane="sessions" style="display:none">
          <div style="display:flex;align-items:center;gap:10px">
            <b style="font-size:13px">All sessions</b>
            <span class="muted" id="ssCount"></span>
            <div class="spacer" style="flex:1"></div>
            <button id="ssRefresh" class="tiny">↻ Refresh</button>
          </div>
          <div class="scrollx"><table id="ssTable"></table></div>
        </div>

        <!-- global prompt -->
        <div class="body tabpane" data-pane="prompt" style="display:none">
          <label>Global system prompt (applies to every user; hidden from end users)</label>
          <textarea id="spText" class="fld" style="min-height:200px"></textarea>
          <div class="err" id="spErr"></div>
          <div style="display:flex;gap:8px;margin-top:10px;align-items:center">
            <button id="spSave" class="primary tiny">Save prompt</button>
            <button id="spReload" class="tiny">Reload</button>
            <span class="muted" id="spState"></span>
          </div>
        </div>
      </div>
    </div>
  </div>

<script>
// ===================== CHAT =====================
const state = { messages: [], busy:false, sessionId: newId(), ctxPct:null };
function newId(){ return 'sess-' + Math.random().toString(36).slice(2,10); }
let pendingImg = null;

const chatEl = document.getElementById('chat');
const inputEl = document.getElementById('input');
const sendBtn = document.getElementById('sendBtn');
const sessPill = document.getElementById('sessPill');
const dot = document.getElementById('dot');

function esc(s){return (s||'').replace(/[&<>]/g,c=>({'&':'&amp;','<':'&lt;','>':'&gt;'}[c]));}
function mdInline(t){
  t = esc(t);
  t = t.replace(/`([^`\n]+)`/g,'<code>$1</code>');
  t = t.replace(/\*\*([^*\n]+)\*\*/g,'<strong>$1</strong>');
  t = t.replace(/(^|[^*])\*([^*\n]+)\*/g,'$1<em>$2</em>');
  t = t.replace(/\[([^\]]+)\]\((https?:\/\/[^)\s]+)\)/g,'<a href="$2" target="_blank" rel="noopener">$1</a>');
  t = t.replace(/^\s*#{1,3}\s+(.*)$/gm,'<strong>$1</strong>');
  t = t.replace(/^\s*[-*]\s+(.*)$/gm,'• $1');
  return t.replace(/\n/g,'<br>');
}
function mdRender(raw){
  const parts = (raw||'').split('```');
  let html='';
  for(let i=0;i<parts.length;i++){
    if(i % 2 === 1){
      const code = parts[i].replace(/^\w*\n/,'').replace(/\n$/,'');
      html += '<pre><code>'+esc(code)+'</code></pre>';
    } else {
      html += mdInline(parts[i]);
    }
  }
  return html;
}

const SUGGESTS = ['What can you do?','Search the latest AI news','Summarise quantum computing','Plan a 3-day trip to Goa'];

function render(){
  sessPill.textContent = 'session: ' + state.sessionId +
    (state.ctxPct != null ? ' · ' + state.ctxPct + '% ctx' : '');
  chatEl.innerHTML = '';
  if (!state.messages.length){
    const w = document.createElement('div');
    w.className = 'welcome';
    w.innerHTML = '<h2>Hi, I’m Antaram 👋</h2><p>Your agentic SLM by Team Triangle. Ask anything — I can search the web and reason through tasks.</p>'+
      '<div class="chips">'+SUGGESTS.map(s=>'<span class="chip">'+esc(s)+'</span>').join('')+'</div>';
    chatEl.appendChild(w);
    w.querySelectorAll('.chip').forEach((c,i)=>c.onclick=()=>{inputEl.value=SUGGESTS[i];inputEl.focus();});
    return;
  }
  state.messages.forEach((m) => {
    const wrap = document.createElement('div');
    wrap.className = 'msg ' + m.role + (m.typing ? ' typing' : '');
    const row = document.createElement('div'); row.className = 'row';
    const bubble = document.createElement('div'); bubble.className = 'bubble';
    if (m.image){
      const im = document.createElement('img');
      im.src = m.image; im.style.cssText='max-width:220px;border-radius:10px;display:block;margin-bottom:6px';
      bubble.appendChild(im);
    }
    if (m.typing){
      bubble.innerHTML = '<span class="dots"><span></span><span></span><span></span></span>';
    } else if (m.role === 'assistant'){
      const span = document.createElement('span'); span.innerHTML = mdRender(m.content); bubble.appendChild(span);
    } else {
      const span = document.createElement('span'); span.textContent = m.content; bubble.appendChild(span);
    }
    row.appendChild(bubble);
    if (m.role === 'assistant' && !m.typing){
      const copy = document.createElement('button');
      copy.className='iconbtn'; copy.title='Copy'; copy.textContent='⧉';
      copy.onclick=()=>{navigator.clipboard.writeText(m.content);copy.textContent='✓';setTimeout(()=>copy.textContent='⧉',1200);};
      row.appendChild(copy);
      if (m.meta){
        const info=document.createElement('button');
        info.className='iconbtn';info.title='Metadata';info.textContent='ⓘ';
        info.onclick=()=>{m.open=!m.open;render();};
        row.appendChild(info);
      }
    }
    wrap.appendChild(row);
    if (m.role === 'assistant' && m.meta){
      const meta=document.createElement('div');
      meta.className='meta'+(m.open?' open':'');
      const pct=m.meta.context_percent != null ? m.meta.context_percent : 0;
      meta.innerHTML =
        '<div class="item"><span class="ico">⏱</span> time <b>'+m.meta.time_taken_s+'s</b></div>'+
        '<div class="item"><span class="ico">🧮</span> model <b>'+m.meta.model+'</b></div>'+
        '<div class="item"><span class="ico">⬆</span> tokens in <b>'+m.meta.tokens_in+'</b></div>'+
        '<div class="item"><span class="ico">⬇</span> tokens out <b>'+m.meta.tokens_out+'</b></div>'+
        '<div class="item"><span class="ico">🧠</span> turns <b>'+m.meta.session_turns+'</b></div>'+
        '<div class="item"><span class="ico">🆔</span> conv <b>'+(m.meta.conversation_id||'').slice(0,12)+'</b></div>'+
        '<div class="item full"><span class="ico">📦</span> context <b>'+pct+'% of 1M</b> · ~'+m.meta.context_tokens+' tok</div>'+
        '<div class="item full"><div class="ctxbar"><div class="ctxbar-fill" style="width:'+Math.min(100,pct)+'%"></div></div></div>';
      wrap.appendChild(meta);
    }
    chatEl.appendChild(wrap);
  });
  chatEl.scrollTop = chatEl.scrollHeight;
}

async function send(){
  const text = inputEl.value.trim();
  if ((!text && !pendingImg) || state.busy) return;
  state.busy = true; sendBtn.disabled = true;
  const img = pendingImg;
  state.messages.push({ role:'user', content:text, image: img });
  state.messages.push({ role:'assistant', content:'', typing:true });
  inputEl.value=''; inputEl.style.height='auto';
  pendingImg=null; attachInfo.style.display='none'; render();

  const headers={'Content-Type':'application/json'};
  const key=document.getElementById('keyInput').value.trim();
  if (key) headers['Authorization']='Bearer '+key;
  const content = img
    ? [{type:'text',text:text||'Describe this image.'},{type:'image_url',image_url:{url:img}}]
    : text;
  try{
    const res=await fetch('/v1/chat/completions',{method:'POST',headers,
      body:JSON.stringify({model:'antaram',session_id:state.sessionId,messages:[{role:'user',content}]})});
    const data=await res.json();
    state.messages.pop();
    if(!res.ok){
      state.messages.push({role:'assistant',content:'⚠ '+((data.error&&data.error.message)||res.status)});
    }else{
      state.messages.push({role:'assistant',content:data.choices[0].message.content,meta:data.x_agy,open:false});
      if(data.x_agy) state.ctxPct=data.x_agy.context_percent;
      dot.classList.add('ok');
    }
  }catch(e){
    state.messages.pop();
    state.messages.push({role:'assistant',content:'⚠ network error: '+e.message});
  }finally{
    state.busy=false; sendBtn.disabled=false; render(); inputEl.focus();
  }
}
sendBtn.onclick=send;
inputEl.addEventListener('keydown',e=>{if(e.key==='Enter'&&!e.shiftKey){e.preventDefault();send();}});
inputEl.addEventListener('input',()=>{inputEl.style.height='auto';inputEl.style.height=Math.min(inputEl.scrollHeight,140)+'px';});
document.getElementById('newBtn').onclick=()=>{state.messages=[];state.sessionId=newId();state.ctxPct=null;dot.classList.remove('ok');render();inputEl.focus();};

const usagePanel=document.getElementById('usagePanel');
document.getElementById('usageBtn').onclick=async()=>{
  if(usagePanel.classList.contains('open')){usagePanel.classList.remove('open');return;}
  try{
    const u=await(await fetch('/usage')).json();
    const rows=[['Region',u.region],['Uptime',u.uptime_seconds+'s'],['Requests',u.requests],['Errors',u.errors],
      ['Tokens in',u.tokens_in],['Tokens out',u.tokens_out],['Tokens total',u.tokens_total+' (est)'],
      ['Resp avg/min/max',u.avg_response_seconds+'/'+u.min_response_seconds+'/'+u.max_response_seconds+'s'],
      ['Active sessions',u.active_sessions]];
    usagePanel.innerHTML='<div style="font-weight:600;margin-bottom:6px">📊 Antaram · Usage</div>'+
      rows.map(r=>'<div class="r"><span>'+r[0]+'</span><b>'+r[1]+'</b></div>').join('');
    usagePanel.classList.add('open');
  }catch(e){usagePanel.innerHTML='usage error';usagePanel.classList.add('open');}
};

const attachInfo=document.getElementById('attachInfo');
const fileInput=document.getElementById('fileInput');
document.getElementById('attachBtn').onclick=()=>fileInput.click();
fileInput.onchange=()=>{
  const f=fileInput.files[0]; if(!f)return;
  const r=new FileReader();
  r.onload=()=>{pendingImg=r.result;attachInfo.style.display='block';attachInfo.textContent='📎 '+f.name+' attached — sends with your next message';};
  r.readAsDataURL(f); fileInput.value='';
};
render(); inputEl.focus();

// ===================== HIDDEN ADMIN CONSOLE =====================
const ov=document.getElementById('adminOverlay');
const elLogin=document.getElementById('adminLogin');
const elPanel=document.getElementById('adminPanel');
let adminToken=sessionStorage.getItem('antaram_admin')||'';

function openAdmin(){ ov.classList.add('open'); showAdminState(); if(!adminToken) document.getElementById('alUser').focus(); }
function closeAdmin(){ ov.classList.remove('open'); if(location.hash==='#admin') history.replaceState(null,'',location.pathname); }
function showAdminState(){
  const authed=!!adminToken;
  elLogin.style.display=authed?'none':'block';
  elPanel.style.display=authed?'block':'none';
  document.getElementById('adminLogout').style.display=authed?'inline-block':'none';
  document.getElementById('adminTitle').textContent=authed?'Admin Console':'Admin · Sign in';
  if(authed) loadUsers();
}
// secret triggers: Ctrl+Shift+A  OR  #admin in the URL
document.addEventListener('keydown',e=>{
  if(e.ctrlKey&&e.shiftKey&&(e.key==='A'||e.key==='a')){e.preventDefault();ov.classList.contains('open')?closeAdmin():openAdmin();}
  if(e.key==='Escape'&&ov.classList.contains('open'))closeAdmin();
});
if(location.hash==='#admin') openAdmin();
window.addEventListener('hashchange',()=>{ if(location.hash==='#admin') openAdmin(); });
document.getElementById('adminClose').onclick=closeAdmin;

async function adminFetch(path,opts){
  opts=opts||{};
  opts.headers=Object.assign({'Content-Type':'application/json','Authorization':'Bearer '+adminToken},opts.headers||{});
  const res=await fetch(path,opts);
  if(res.status===401){ adminToken=''; sessionStorage.removeItem('antaram_admin'); showAdminState(); throw new Error('Session expired — sign in again.'); }
  return res;
}

// --- login ---
document.getElementById('alBtn').onclick=async()=>{
  const errEl=document.getElementById('alErr'); errEl.textContent='';
  const username=document.getElementById('alUser').value.trim();
  const password=document.getElementById('alPass').value;
  if(!username||!password){errEl.textContent='Enter username and password.';return;}
  try{
    const res=await fetch('/admin/login',{method:'POST',headers:{'Content-Type':'application/json'},
      body:JSON.stringify({username,password})});
    const data=await res.json();
    if(!res.ok){errEl.textContent=data.detail||'Login failed.';return;}
    adminToken=data.token; sessionStorage.setItem('antaram_admin',adminToken);
    document.getElementById('alPass').value=''; showAdminState();
  }catch(e){errEl.textContent='Network error: '+e.message;}
};
document.getElementById('alPass').addEventListener('keydown',e=>{if(e.key==='Enter')document.getElementById('alBtn').click();});
document.getElementById('adminLogout').onclick=()=>{adminToken='';sessionStorage.removeItem('antaram_admin');showAdminState();};

// --- tabs ---
document.querySelectorAll('.tab').forEach(t=>t.onclick=()=>{
  document.querySelectorAll('.tab').forEach(x=>x.classList.remove('active'));
  t.classList.add('active');
  document.querySelectorAll('.tabpane').forEach(p=>p.style.display=p.dataset.pane===t.dataset.tab?'block':'none');
  if(t.dataset.tab==='users')loadUsers();
  if(t.dataset.tab==='sessions')loadSessions();
  if(t.dataset.tab==='prompt')loadPrompt();
});

// --- persona templates (personalised with the typed name) ---
function personaTemplate(kind,name){
  const N=name||'the user';
  const T={
    friendly:
      '# Persona — Friendly assistant for '+N+'\n'+
      '- Greet '+N+' warmly and keep a friendly, encouraging tone.\n'+
      '- Use simple, clear language and short paragraphs.\n'+
      '- An occasional relevant emoji is fine; never overdo it.',
    professional:
      '# Persona — Professional assistant for '+N+'\n'+
      '- Address '+N+' formally and keep a polished, business tone.\n'+
      '- Be precise, structured and objective. No slang or emojis.\n'+
      '- Use bullet points and clear headings for longer answers.',
    concise:
      '# Persona — Concise expert for '+N+'\n'+
      '- Give '+N+' direct, expert answers with no filler.\n'+
      '- Lead with the answer, then a brief reason only if needed.\n'+
      '- Keep replies short unless '+N+' asks for more detail.',
    support:
      '# Persona — Support agent for '+N+'\n'+
      '- You are a polite, patient support agent helping '+N+'.\n'+
      '- Acknowledge the issue, then give clear step-by-step guidance.\n'+
      '- Stay calm and positive; never blame the user.'
  };
  return T[kind]||'';
}
document.getElementById('ikTmpl').addEventListener('click',e=>{
  const b=e.target.closest('button[data-tmpl]'); if(!b)return;
  const ta=document.getElementById('ikAgents');
  if(b.dataset.tmpl==='clear'){ ta.value=''; ta.focus(); return; }
  const name=document.getElementById('ikName').value.trim();
  ta.value=personaTemplate(b.dataset.tmpl,name);
  ta.focus();
});

// --- issue key ---
document.getElementById('ikBtn').onclick=async()=>{
  const errEl=document.getElementById('ikErr'); errEl.textContent='';
  const reveal=document.getElementById('ikReveal'); reveal.innerHTML='';
  const username=document.getElementById('ikName').value.trim();
  const role=document.getElementById('ikRole').value;
  const ttl=document.getElementById('ikTtl').value;
  const maxs=document.getElementById('ikMax').value;
  const agents_md=document.getElementById('ikAgents').value;
  if(!username){errEl.textContent='Give the user a name/label.';return;}
  const payload={username:username,role:role,agents_md:agents_md};
  if(ttl!=='') payload.ttl_days=parseInt(ttl,10);
  if(maxs!=='') payload.max_sessions=parseInt(maxs,10);
  try{
    const res=await adminFetch('/admin/keys',{method:'POST',body:JSON.stringify(payload)});
    const d=await res.json();
    if(!res.ok){errEl.textContent=d.detail||'Failed to create key.';return;}
    const exp=(d.expires_at&&d.expires_at!=='lifetime')?new Date(d.expires_at).toLocaleString():'lifetime';
    const endpoint=location.origin+'/v1/chat/completions';
    const msg='Hi '+username+', here is your Antaram access.\n\n'+
      'Endpoint: '+endpoint+'\n'+
      'API key: '+d.api_key+'\n'+
      'Header:  Authorization: Bearer '+d.api_key+'\n'+
      'Expires: '+exp+'\n\nKeep this key private.';
    reveal.innerHTML='<div class="keyreveal">'+
        '<b>✓ Key created for "'+esc(username)+'" — copy it now, it is shown only once.</b>'+
        '<code id="rvKey">'+esc(d.api_key)+'</code>'+
        '<div style="display:flex;gap:8px;flex-wrap:wrap">'+
          '<button class="tiny primary" id="rvCopyKey">Copy key</button>'+
          '<button class="tiny" id="rvCopyMsg">Copy message to send</button>'+
        '</div>'+
        '<div class="sendmsg" id="rvMsg">'+esc(msg)+'</div>'+
      '</div>';
    document.getElementById('rvCopyKey').onclick=()=>{navigator.clipboard.writeText(d.api_key);};
    document.getElementById('rvCopyMsg').onclick=()=>{navigator.clipboard.writeText(msg);};
    document.getElementById('ikName').value=''; document.getElementById('ikAgents').value='';
  }catch(e){errEl.textContent=e.message;}
};

// --- users / keys list ---
async function loadUsers(){
  const tbl=document.getElementById('ukTable');
  tbl.innerHTML='<tr><td class="muted">Loading…</td></tr>';
  try{
    const res=await adminFetch('/admin/keys'); const d=await res.json();
    const keys=d.keys||[];
    document.getElementById('ukCount').textContent=keys.length+' total';
    if(!keys.length){tbl.innerHTML='<tr><td class="muted">No keys yet.</td></tr>';return;}
    let html='<tr><th>User</th><th>Role</th><th>Sessions</th><th>Expires</th><th>Status</th><th>Actions</th></tr>';
    keys.forEach(k=>{
      const exp=k.expires_at?new Date(k.expires_at).toLocaleDateString():'lifetime';
      const used=k.sessions_used!=null?k.sessions_used:0, cap=k.max_sessions?('/'+k.max_sessions):'';
      const status=k.revoked?'<span class="badge dead">revoked</span>':'<span class="badge live">active</span>';
      const adm=k.role==='superadmin'?' <span class="badge adm">admin</span>':'';
      const ag=k.has_agents?' <span class="badge ag">AGENTS.md</span>':'';
      const nm=esc(k.label||'(unnamed)');
      html+='<tr>'+
        '<td><b>'+nm+'</b><div class="muted" style="font-size:11px">'+esc(k.key_prefix||'')+'</div></td>'+
        '<td>'+k.role+adm+'</td>'+
        '<td>'+used+cap+'</td>'+
        '<td>'+exp+'</td>'+
        '<td>'+status+ag+'</td>'+
        '<td><div class="rowacts">'+
          '<button class="tiny" data-act="ag" data-id="'+k.id+'" data-name="'+nm+'">AGENTS.md</button>'+
          (k.revoked?'':'<button class="tiny danger" data-act="rev" data-id="'+k.id+'">Revoke</button>')+
        '</div></td></tr>';
    });
    tbl.innerHTML=html;
    tbl.querySelectorAll('button[data-act]').forEach(b=>b.onclick=()=>{
      const id=parseInt(b.dataset.id,10);
      if(b.dataset.act==='rev') revokeKey(id);
      else editAgents(id,b.dataset.name);
    });
  }catch(e){tbl.innerHTML='<tr><td class="muted">'+esc(e.message)+'</td></tr>';}
}
document.getElementById('ukRefresh').onclick=loadUsers;
async function revokeKey(id){
  if(!confirm('Revoke this key? The user loses access immediately.'))return;
  try{ await adminFetch('/admin/keys/'+id,{method:'DELETE'}); loadUsers(); }catch(e){alert(e.message);}
}

// --- per-user AGENTS.md editor ---
let agEditId=null;
async function editAgents(id,name){
  agEditId=id;
  const box=document.getElementById('agEditor'); box.style.display='block';
  document.getElementById('agName').textContent=name||('key #'+id);
  document.getElementById('agErr').textContent='';
  document.getElementById('agText').value='Loading…';
  box.scrollIntoView({behavior:'smooth'});
  try{
    const res=await adminFetch('/admin/keys/'+id+'/agents'); const d=await res.json();
    document.getElementById('agText').value=d.agents_md||'';
  }catch(e){document.getElementById('agText').value='';document.getElementById('agErr').textContent=e.message;}
}
document.getElementById('agCancel').onclick=()=>{document.getElementById('agEditor').style.display='none';agEditId=null;};
document.getElementById('agSave').onclick=async()=>{
  if(agEditId==null)return;
  const errEl=document.getElementById('agErr'); errEl.textContent='';
  try{
    const res=await adminFetch('/admin/keys/'+agEditId+'/agents',{method:'PUT',
      body:JSON.stringify({agents_md:document.getElementById('agText').value})});
    if(!res.ok){const d=await res.json();errEl.textContent=d.detail||'Save failed.';return;}
    document.getElementById('agEditor').style.display='none'; agEditId=null; loadUsers();
  }catch(e){errEl.textContent=e.message;}
};

// --- sessions (admin: view + delete any) ---
async function loadSessions(){
  const tbl=document.getElementById('ssTable');
  tbl.innerHTML='<tr><td class="muted">Loading…</td></tr>';
  try{
    const res=await adminFetch('/admin/sessions'); const d=await res.json();
    const rows=d.sessions||[];
    document.getElementById('ssCount').textContent=rows.length+' total';
    if(!rows.length){tbl.innerHTML='<tr><td class="muted">No sessions yet.</td></tr>';return;}
    let html='<tr><th>Session</th><th>Owner</th><th>Turns</th><th>Context</th><th>Last active</th><th>Actions</th></tr>';
    rows.forEach(sv=>{
      const la=sv.last_active?new Date(sv.last_active).toLocaleString():'—';
      const tag=sv.active?'':' <span class="badge">reserved</span>';
      const owner=esc(sv.owner_label||('key #'+(sv.api_key_id!=null?sv.api_key_id:'?')));
      html+='<tr>'+
        '<td><b>'+esc(sv.plain_session_id||sv.session_id)+'</b>'+tag+'</td>'+
        '<td>'+owner+'</td>'+
        '<td>'+sv.turns+'</td>'+
        '<td>'+sv.context_percent+'%</td>'+
        '<td>'+la+'</td>'+
        '<td><button class="tiny danger" data-sid="'+encodeURIComponent(sv.session_id)+'">Delete</button></td>'+
        '</tr>';
    });
    tbl.innerHTML=html;
    tbl.querySelectorAll('button[data-sid]').forEach(b=>b.onclick=()=>deleteSession(decodeURIComponent(b.dataset.sid)));
  }catch(e){tbl.innerHTML='<tr><td class="muted">'+esc(e.message)+'</td></tr>';}
}
document.getElementById('ssRefresh').onclick=loadSessions;
async function deleteSession(effId){
  if(!confirm('Delete this session? Its history is removed and the user loses that context.'))return;
  try{ await adminFetch('/admin/sessions/'+encodeURIComponent(effId),{method:'DELETE'}); loadSessions(); }catch(e){alert(e.message);}
}

// --- global system prompt ---
async function loadPrompt(){
  const st=document.getElementById('spState'); st.textContent='loading…';
  try{
    const res=await adminFetch('/admin/system-prompt'); const d=await res.json();
    document.getElementById('spText').value=d.system_prompt||'';
    st.textContent=d.is_custom?'custom prompt active':'using built-in default';
  }catch(e){st.textContent=e.message;}
}
document.getElementById('spReload').onclick=loadPrompt;
document.getElementById('spSave').onclick=async()=>{
  const errEl=document.getElementById('spErr'); errEl.textContent='';
  const st=document.getElementById('spState');
  try{
    const res=await adminFetch('/admin/system-prompt',{method:'PUT',
      body:JSON.stringify({system_prompt:document.getElementById('spText').value})});
    const d=await res.json();
    if(!res.ok){errEl.textContent=d.detail||'Save failed.';return;}
    st.textContent='✓ saved — applies to new turns within ~30s';
  }catch(e){errEl.textContent=e.message;}
};
</script>
</body>
</html>