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Litellm-proxy
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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>Anthropic ↔ OpenAI Proxy</title>
<style>
  *{box-sizing:border-box;margin:0;padding:0}
  body{font-family:'Segoe UI',sans-serif;background:#0f172a;color:#e2e8f0;min-height:100vh}
  .container{max-width:900px;margin:0 auto;padding:2rem}
  h1{font-size:1.8rem;font-weight:700;color:#7dd3fc;margin-bottom:.3rem}
  .subtitle{color:#94a3b8;margin-bottom:2rem;font-size:.9rem}
  .card{background:#1e293b;border-radius:12px;padding:1.5rem;margin-bottom:1.5rem;border:1px solid #334155}
  .card h2{font-size:1.1rem;font-weight:600;color:#bae6fd;margin-bottom:1rem}
  .tabs{display:flex;gap:.5rem;margin-bottom:1.5rem}
  .tab{padding:.5rem 1.2rem;border-radius:8px;border:1px solid #334155;background:#1e293b;color:#94a3b8;cursor:pointer;font-size:.9rem;transition:all .2s}
  .tab.active{background:#0284c7;color:#fff;border-color:#0284c7}
  .form-group{margin-bottom:1rem}
  label{display:block;font-size:.85rem;color:#94a3b8;margin-bottom:.4rem}
  input{width:100%;padding:.6rem .9rem;background:#0f172a;border:1px solid #334155;border-radius:8px;color:#e2e8f0;font-size:.95rem;outline:none;transition:border .2s}
  input:focus{border-color:#0284c7}
  .btn{padding:.6rem 1.4rem;border-radius:8px;border:none;cursor:pointer;font-size:.9rem;font-weight:600;transition:all .2s}
  .btn-primary{background:#0284c7;color:#fff}.btn-primary:hover{background:#0369a1}
  .btn-danger{background:#dc2626;color:#fff;padding:.4rem .9rem;font-size:.8rem}.btn-danger:hover{background:#b91c1c}
  .btn-secondary{background:#334155;color:#e2e8f0}.btn-secondary:hover{background:#475569}
  .proxy-card{background:#0f172a;border:1px solid #334155;border-radius:10px;padding:1.2rem;margin-bottom:1rem}
  .proxy-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.8rem}
  .proxy-name{font-weight:600;color:#7dd3fc}
  .url-box{background:#1e293b;border:1px solid #334155;border-radius:6px;padding:.6rem .9rem;font-family:monospace;font-size:.85rem;color:#a5f3fc;word-break:break-all;display:flex;justify-content:space-between;align-items:center;gap:.5rem}
  .copy-btn{background:#0284c7;border:none;color:#fff;padding:.3rem .7rem;border-radius:5px;cursor:pointer;font-size:.75rem;white-space:nowrap}
  .copy-btn:hover{background:#0369a1}
  .meta{font-size:.78rem;color:#64748b;margin-top:.6rem}
  .alert{padding:.8rem 1rem;border-radius:8px;margin-bottom:1rem;font-size:.9rem}
  .alert-error{background:#450a0a;border:1px solid #dc2626;color:#fca5a5}
  .alert-success{background:#052e16;border:1px solid #16a34a;color:#86efac}
  .hidden{display:none}
  .mapping-row{display:flex;gap:.5rem;margin-bottom:.5rem}
  .mapping-row input{flex:1}
  .header-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}
  .user-badge{background:#0284c7;padding:.3rem .8rem;border-radius:20px;font-size:.8rem;font-weight:600}
</style>
</head>
<body>
<div class="container">
  <div class="header-row">
    <div>
      <h1>🔄 Anthropic ↔ OpenAI Proxy</h1>
      <p class="subtitle">Use any OpenAI-compatible backend with Anthropic SDK</p>
    </div>
    <div id="user-info" class="hidden">
      <span class="user-badge" id="username-badge"></span>
      <button class="btn btn-secondary" style="margin-left:.5rem" onclick="logout()">Logout</button>
    </div>
  </div>

  <div id="auth-section">
    <div class="tabs">
      <button class="tab active" onclick="switchTab('login')">Login</button>
      <button class="tab" onclick="switchTab('signup')">Sign Up</button>
    </div>
    <div class="card">
      <div id="auth-alert" class="hidden"></div>
      <div id="login-form">
        <h2>Login</h2>
        <div class="form-group"><label>Username</label><input id="l-username" placeholder="your_username"/></div>
        <div class="form-group"><label>Password</label><input id="l-password" type="password" placeholder="••••••"/></div>
        <button class="btn btn-primary" onclick="login()">Login</button>
      </div>
      <div id="signup-form" class="hidden">
        <h2>Create Account</h2>
        <div class="form-group"><label>Username</label><input id="s-username" placeholder="your_username"/></div>
        <div class="form-group"><label>Email</label><input id="s-email" type="email" placeholder="you@example.com"/></div>
        <div class="form-group"><label>Password</label><input id="s-password" type="password" placeholder="Min 6 characters"/></div>
        <button class="btn btn-primary" onclick="signup()">Create Account</button>
      </div>
    </div>
  </div>

  <div id="dashboard-section" class="hidden">
    <div class="card">
      <h2>➕ Add New Proxy</h2>
      <div id="create-alert" class="hidden"></div>
      <div class="form-group"><label>Proxy Name</label><input id="p-name" placeholder="My LLM Server"/></div>
      <div class="form-group"><label>OpenAI-Compatible Base URL</label><input id="p-url" placeholder="http://localhost:8000/v1"/></div>
      <div class="form-group"><label>API Key</label><input id="p-key" type="password" placeholder="sk-... (or any string)"/></div>
      <div class="form-group">
        <label>Model Mapping (Anthropic → Your model) <span style="color:#64748b;font-size:.8rem">optional</span></label>
        <div id="mapping-rows"></div>
        <button class="btn btn-secondary" style="font-size:.8rem;padding:.4rem .8rem;margin-top:.4rem" onclick="addMappingRow()">+ Add Mapping</button>
      </div>
      <button class="btn btn-primary" onclick="createProxy()" style="margin-top:.5rem">Create Proxy</button>
    </div>

    <div class="card">
      <h2>🔗 Your Proxy Endpoints</h2>
      <div id="proxies-alert" class="hidden"></div>
      <div id="proxies-list"><p style="color:#64748b;font-size:.9rem">Loading...</p></div>
    </div>
  </div>
</div>

<script>
const API = '';
let TOKEN = localStorage.getItem('token') || '';

function setAlert(id, msg, type='error') {
  const el = document.getElementById(id);
  el.className = `alert alert-${type}`;
  el.textContent = msg;
  el.classList.remove('hidden');
  setTimeout(() => el.classList.add('hidden'), 5000);
}

function switchTab(tab) {
  document.querySelectorAll('.tab').forEach((t,i) => t.classList.toggle('active', (tab==='login'?0:1)===i));
  document.getElementById('login-form').classList.toggle('hidden', tab !== 'login');
  document.getElementById('signup-form').classList.toggle('hidden', tab !== 'signup');
  document.getElementById('auth-alert').classList.add('hidden');
}

async function apiFetch(path, opts={}) {
  const headers = {'Content-Type':'application/json', ...(opts.headers||{})};
  if (TOKEN) headers['Authorization'] = `Bearer ${TOKEN}`;
  const res = await fetch(API + path, {...opts, headers});
  const data = await res.json().catch(() => ({}));
  if (!res.ok) throw new Error(data.detail || 'Request failed');
  return data;
}

async function login() {
  try {
    const data = await apiFetch('/auth/login', {
      method:'POST',
      body: JSON.stringify({username: document.getElementById('l-username').value, password: document.getElementById('l-password').value})
    });
    TOKEN = data.access_token;
    localStorage.setItem('token', TOKEN);
    showDashboard(data.user.username);
  } catch(e) { setAlert('auth-alert', e.message); }
}

async function signup() {
  try {
    const data = await apiFetch('/auth/signup', {
      method:'POST',
      body: JSON.stringify({username: document.getElementById('s-username').value, email: document.getElementById('s-email').value, password: document.getElementById('s-password').value})
    });
    TOKEN = data.access_token;
    localStorage.setItem('token', TOKEN);
    showDashboard(data.user.username);
  } catch(e) { setAlert('auth-alert', e.message); }
}

function logout() {
  TOKEN = ''; localStorage.removeItem('token');
  document.getElementById('dashboard-section').classList.add('hidden');
  document.getElementById('auth-section').classList.remove('hidden');
  document.getElementById('user-info').classList.add('hidden');
}

function showDashboard(username) {
  document.getElementById('auth-section').classList.add('hidden');
  document.getElementById('dashboard-section').classList.remove('hidden');
  document.getElementById('user-info').classList.remove('hidden');
  document.getElementById('username-badge').textContent = '👤 ' + username;
  loadProxies();
}

function addMappingRow(anthr='', oai='') {
  const row = document.createElement('div');
  row.className = 'mapping-row';
  row.innerHTML = `<input placeholder="claude-3-opus-20240229" value="${anthr}"/><span style="color:#94a3b8;display:flex;align-items:center">→</span><input placeholder="gpt-4o" value="${oai}"/><button class="btn btn-danger" onclick="this.parentElement.remove()">✕</button>`;
  document.getElementById('mapping-rows').appendChild(row);
}

function getMappings() {
  const rows = document.querySelectorAll('#mapping-rows .mapping-row');
  const mapping = {};
  rows.forEach(r => {
    const inputs = r.querySelectorAll('input');
    if (inputs[0].value && inputs[1].value) mapping[inputs[0].value.trim()] = inputs[1].value.trim();
  });
  return mapping;
}

async function createProxy() {
  try {
    const data = await apiFetch('/proxies', {
      method:'POST',
      body: JSON.stringify({
        name: document.getElementById('p-name').value,
        openai_base_url: document.getElementById('p-url').value,
        openai_api_key: document.getElementById('p-key').value,
        model_mapping: getMappings(),
      })
    });
    setAlert('create-alert', `Proxy "${data.name}" created!`, 'success');
    document.getElementById('p-name').value='';
    document.getElementById('p-url').value='';
    document.getElementById('p-key').value='';
    document.getElementById('mapping-rows').innerHTML='';
    loadProxies();
  } catch(e) { setAlert('create-alert', e.message); }
}

async function loadProxies() {
  const list = document.getElementById('proxies-list');
  try {
    const proxies = await apiFetch('/proxies');
    if (!proxies.length) { list.innerHTML='<p style="color:#64748b;font-size:.9rem">No proxies yet. Create one above.</p>'; return; }
    list.innerHTML = proxies.map(p => `
      <div class="proxy-card">
        <div class="proxy-header">
          <span class="proxy-name">${p.name}</span>
          <button class="btn btn-danger" onclick="deleteProxy(${p.id})">Delete</button>
        </div>
        <label style="font-size:.78rem;color:#64748b">Proxy URL (use as Anthropic base_url)</label>
        <div class="url-box">
          <span>${p.proxy_url}</span>
          <button class="copy-btn" onclick="copyText('${p.proxy_url}',this)">Copy</button>
        </div>
        <div class="meta">
          Forwards to: <code style="color:#7dd3fc">${p.openai_base_url}</code> &nbsp;|&nbsp; Created: ${new Date(p.created_at).toLocaleDateString()}
        </div>
      </div>
    `).join('');
  } catch(e) { list.innerHTML=`<p style="color:#fca5a5">${e.message}</p>`; }
}

async function deleteProxy(id) {
  if (!confirm('Delete this proxy?')) return;
  try {
    await apiFetch(`/proxies/${id}`, {method:'DELETE'});
    loadProxies();
  } catch(e) { setAlert('proxies-alert', e.message); }
}

function copyText(text, btn) {
  navigator.clipboard.writeText(text);
  btn.textContent='Copied!';
  setTimeout(() => btn.textContent='Copy', 2000);
}

if (TOKEN) {
  apiFetch('/auth/me').then(u => showDashboard(u.username)).catch(() => { TOKEN=''; localStorage.removeItem('token'); });
}
</script>
</body>
</html>