lfmreact / index.html
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<!-- this is a test chat for app.py in space to test the response and
streaming capabilities of the app.py return response and llm -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Nanbeige4.1-3B Chat</title>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
:root {
--bg-primary: #0f0f0f;
--bg-secondary: #1a1a1a;
--bg-tertiary: #252525;
--accent: #00d4aa;
--accent-hover: #00b894;
--text-primary: #ffffff;
--text-secondary: #a0a0a0;
--border: #333333;
--user-msg: #1a3d35;
--assistant-msg: #252525;
--error: #ff4757;
--shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
background: var(--bg-primary);
color: var(--text-primary);
height: 100vh;
display: flex;
flex-direction: column;
overflow: hidden;
}
/* Header */
.header {
background: var(--bg-secondary);
border-bottom: 1px solid var(--border);
padding: 1rem 1.5rem;
display: flex;
align-items: center;
justify-content: space-between;
box-shadow: var(--shadow);
z-index: 10;
}
.logo {
display: flex;
align-items: center;
gap: 0.75rem;
}
.logo-icon {
width: 36px;
height: 36px;
background: linear-gradient(135deg, var(--accent), var(--accent-hover));
border-radius: 10px;
display: flex;
align-items: center;
justify-content: center;
font-weight: bold;
font-size: 1.2rem;
}
.logo-text {
font-size: 1.25rem;
font-weight: 600;
letter-spacing: -0.5px;
}
.logo-text span {
color: var(--accent);
}
.status {
display: flex;
align-items: center;
gap: 0.5rem;
font-size: 0.875rem;
color: var(--text-secondary);
}
.status-dot {
width: 8px;
height: 8px;
border-radius: 50%;
background: var(--text-secondary);
transition: background 0.3s ease;
}
.status-dot.online {
background: var(--accent);
box-shadow: 0 0 10px var(--accent);
}
.status-dot.error {
background: var(--error);
box-shadow: 0 0 10px var(--error);
}
/* Main Chat Area */
.chat-container {
flex: 1;
overflow-y: auto;
padding: 2rem;
display: flex;
flex-direction: column;
gap: 1.5rem;
scroll-behavior: smooth;
}
.chat-container::-webkit-scrollbar {
width: 8px;
}
.chat-container::-webkit-scrollbar-track {
background: transparent;
}
.chat-container::-webkit-scrollbar-thumb {
background: var(--border);
border-radius: 4px;
}
.chat-container::-webkit-scrollbar-thumb:hover {
background: var(--text-secondary);
}
.welcome-message {
text-align: center;
padding: 3rem 1rem;
color: var(--text-secondary);
}
.welcome-message h2 {
color: var(--text-primary);
margin-bottom: 0.5rem;
font-size: 1.5rem;
}
.message {
display: flex;
gap: 1rem;
max-width: 900px;
margin: 0 auto;
width: 100%;
animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}
.message-avatar {
width: 36px;
height: 36px;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
font-size: 1rem;
flex-shrink: 0;
font-weight: 600;
}
.user-message .message-avatar {
background: var(--accent);
color: var(--bg-primary);
}
.assistant-message .message-avatar {
background: var(--bg-tertiary);
border: 1px solid var(--border);
}
.message-content {
flex: 1;
padding: 1rem 1.25rem;
border-radius: 12px;
line-height: 1.6;
font-size: 0.95rem;
white-space: pre-wrap;
word-wrap: break-word;
}
.user-message .message-content {
background: var(--user-msg);
border: 1px solid rgba(0, 212, 170, 0.2);
}
.assistant-message .message-content {
background: var(--assistant-msg);
border: 1px solid var(--border);
}
.message-content.loading {
display: flex;
align-items: center;
gap: 0.5rem;
}
.typing-indicator {
display: flex;
gap: 4px;
}
.typing-indicator span {
width: 6px;
height: 6px;
background: var(--text-secondary);
border-radius: 50%;
animation: bounce 1.4s infinite ease-in-out both;
}
.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }
@keyframes bounce {
0%, 80%, 100% { transform: scale(0); }
40% { transform: scale(1); }
}
/* Input Area */
.input-container {
background: var(--bg-secondary);
border-top: 1px solid var(--border);
padding: 1.5rem;
display: flex;
justify-content: center;
}
.input-wrapper {
max-width: 900px;
width: 100%;
position: relative;
display: flex;
gap: 0.75rem;
align-items: flex-end;
background: var(--bg-tertiary);
border: 1px solid var(--border);
border-radius: 16px;
padding: 0.75rem;
transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.input-wrapper:focus-within {
border-color: var(--accent);
box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}
textarea {
flex: 1;
background: transparent;
border: none;
color: var(--text-primary);
font-size: 0.95rem;
resize: none;
max-height: 200px;
min-height: 24px;
font-family: inherit;
line-height: 1.5;
padding: 0.25rem 0.5rem;
}
textarea:focus {
outline: none;
}
textarea::placeholder {
color: var(--text-secondary);
}
.send-btn {
background: var(--accent);
color: var(--bg-primary);
border: none;
width: 36px;
height: 36px;
border-radius: 10px;
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
transition: all 0.2s ease;
flex-shrink: 0;
}
.send-btn:hover:not(:disabled) {
background: var(--accent-hover);
transform: scale(1.05);
}
.send-btn:disabled {
opacity: 0.5;
cursor: not-allowed;
}
.send-btn svg {
width: 18px;
height: 18px;
}
/* Settings Panel */
.settings-btn {
background: transparent;
border: 1px solid var(--border);
color: var(--text-secondary);
padding: 0.5rem 1rem;
border-radius: 8px;
cursor: pointer;
font-size: 0.875rem;
transition: all 0.2s ease;
}
.settings-btn:hover {
border-color: var(--accent);
color: var(--accent);
}
.settings-panel {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%) scale(0.95);
background: var(--bg-secondary);
border: 1px solid var(--border);
border-radius: 16px;
padding: 1.5rem;
width: 90%;
max-width: 400px;
box-shadow: var(--shadow);
opacity: 0;
visibility: hidden;
transition: all 0.2s ease;
z-index: 100;
}
.settings-panel.active {
opacity: 1;
visibility: visible;
transform: translate(-50%, -50%) scale(1);
}
.settings-overlay {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.7);
opacity: 0;
visibility: hidden;
transition: all 0.2s ease;
z-index: 99;
}
.settings-overlay.active {
opacity: 1;
visibility: visible;
}
.settings-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 1.5rem;
}
.settings-title {
font-size: 1.25rem;
font-weight: 600;
}
.close-settings {
background: none;
border: none;
color: var(--text-secondary);
cursor: pointer;
font-size: 1.5rem;
line-height: 1;
}
.setting-item {
margin-bottom: 1.25rem;
}
.setting-label {
display: block;
font-size: 0.875rem;
color: var(--text-secondary);
margin-bottom: 0.5rem;
}
.setting-input {
width: 100%;
background: var(--bg-tertiary);
border: 1px solid var(--border);
color: var(--text-primary);
padding: 0.75rem;
border-radius: 8px;
font-size: 0.9rem;
}
.setting-input:focus {
outline: none;
border-color: var(--accent);
}
/* Code blocks */
pre {
background: var(--bg-primary);
border: 1px solid var(--border);
border-radius: 8px;
padding: 1rem;
overflow-x: auto;
margin: 0.75rem 0;
}
code {
font-family: 'Courier New', monospace;
font-size: 0.9em;
}
pre code {
color: #e0e0e0;
}
/* Responsive */
@media (max-width: 768px) {
.chat-container {
padding: 1rem;
}
.header {
padding: 1rem;
}
.logo-text {
font-size: 1rem;
}
}
/* Empty state suggestions */
.suggestions {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 1rem;
max-width: 800px;
margin: 2rem auto;
padding: 0 1rem;
}
.suggestion-card {
background: var(--bg-secondary);
border: 1px solid var(--border);
border-radius: 12px;
padding: 1rem;
cursor: pointer;
transition: all 0.2s ease;
text-align: left;
}
.suggestion-card:hover {
border-color: var(--accent);
transform: translateY(-2px);
box-shadow: 0 4px 12px rgba(0, 212, 170, 0.1);
}
.suggestion-card h4 {
color: var(--accent);
margin-bottom: 0.5rem;
font-size: 0.9rem;
}
.suggestion-card p {
color: var(--text-secondary);
font-size: 0.85rem;
line-height: 1.4;
}
</style>
</head>
<body>
<header class="header">
<div class="logo">
<div class="logo-icon">N</div>
<div class="logo-text">Nanbeige<span>4.1-3B</span></div>
</div>
<div style="display: flex; gap: 1rem; align-items: center;">
<div class="status">
<div class="status-dot" id="statusDot"></div>
<span id="statusText">Checking...</span>
</div>
<button class="settings-btn" onclick="toggleSettings()">⚙️ Settings</button>
<button class="settings-btn" onclick="clearChat()">🗑️ Clear</button>
</div>
</header>
<div class="settings-overlay" id="settingsOverlay" onclick="toggleSettings()"></div>
<div class="settings-panel" id="settingsPanel">
<div class="settings-header">
<h3 class="settings-title">Settings</h3>
<button class="close-settings" onclick="toggleSettings()">×</button>
</div>
<div class="setting-item">
<label class="setting-label">Temperature (0.0 - 2.0)</label>
<input type="number" class="setting-input" id="temperature" min="0" max="2" step="0.1" value="0.6">
</div>
<div class="setting-item">
<label class="setting-label">Max Tokens (1 - 4096)</label>
<input type="number" class="setting-input" id="maxTokens" min="1" max="4096" step="1" value="2048">
</div>
<div class="setting-item">
<label class="setting-label">System Prompt</label>
<textarea class="setting-input" id="systemPrompt" rows="3" placeholder="Optional system instructions..."></textarea>
</div>
</div>
<main class="chat-container" id="chatContainer">
<div class="welcome-message" id="welcomeMessage">
<h2>Welcome to Nanbeige4.1-3B</h2>
<p>A powerful language model for conversation and assistance</p>
<div class="suggestions">
<div class="suggestion-card" onclick="sendSuggestion('Explain quantum computing in simple terms')">
<h4>💡 Explain a concept</h4>
<p>"Explain quantum computing in simple terms"</p>
</div>
<div class="suggestion-card" onclick="sendSuggestion('Write a Python function to calculate fibonacci numbers')">
<h4>💻 Code assistance</h4>
<p>"Write a Python function to calculate fibonacci numbers"</p>
</div>
<div class="suggestion-card" onclick="sendSuggestion('Help me brainstorm ideas for a sci-fi short story')">
<h4>✨ Creative writing</h4>
<p>"Help me brainstorm ideas for a sci-fi short story"</p>
</div>
<div class="suggestion-card" onclick="sendSuggestion('What are the latest developments in AI?')">
<h4>🤖 General knowledge</h4>
<p>"What are the latest developments in AI?"</p>
</div>
</div>
</div>
</main>
<div class="input-container">
<div class="input-wrapper">
<textarea
id="messageInput"
placeholder="Type your message..."
rows="1"
onkeydown="handleKeyDown(event)"
oninput="autoResize(this)"
></textarea>
<button class="send-btn" id="sendBtn" onclick="sendMessage()">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<path d="M22 2L11 13M22 2l-7 20-4-9-9-4 20-7z"/>
</svg>
</button>
</div>
</div>
<script>
let messages = [];
let isStreaming = false;
const API_BASE = window.location.origin;
// Check health on load
checkHealth();
setInterval(checkHealth, 30000);
async function checkHealth() {
try {
const response = await fetch(`${API_BASE}/health`);
const data = await response.json();
const dot = document.getElementById('statusDot');
const text = document.getElementById('statusText');
if (data.model_loaded) {
dot.className = 'status-dot online';
text.textContent = 'Online';
} else {
dot.className = 'status-dot';
text.textContent = 'Loading...';
}
} catch (error) {
document.getElementById('statusDot').className = 'status-dot error';
document.getElementById('statusText').textContent = 'Offline';
}
}
function toggleSettings() {
document.getElementById('settingsPanel').classList.toggle('active');
document.getElementById('settingsOverlay').classList.toggle('active');
}
function clearChat() {
messages = [];
document.getElementById('chatContainer').innerHTML = `
<div class="welcome-message" id="welcomeMessage">
<h2>Welcome to Nanbeige4.1-3B</h2>
<p>Start a new conversation</p>
</div>
`;
}
function autoResize(textarea) {
textarea.style.height = 'auto';
textarea.style.height = Math.min(textarea.scrollHeight, 200) + 'px';
}
function handleKeyDown(e) {
if (e.key === 'Enter' && !e.shiftKey) {
e.preventDefault();
sendMessage();
}
}
function sendSuggestion(text) {
document.getElementById('messageInput').value = text;
sendMessage();
}
async function sendMessage() {
const input = document.getElementById('messageInput');
const text = input.value.trim();
if (!text || isStreaming) return;
// Hide welcome message
const welcome = document.getElementById('welcomeMessage');
if (welcome) welcome.style.display = 'none';
// Add user message
addMessage('user', text);
messages.push({ role: 'user', content: text });
// Clear input
input.value = '';
input.style.height = 'auto';
// Show loading
isStreaming = true;
document.getElementById('sendBtn').disabled = true;
const loadingId = addLoadingMessage();
try {
const temperature = parseFloat(document.getElementById('temperature').value) || 0.6;
const maxTokens = parseInt(document.getElementById('maxTokens').value) || 2048;
const systemPrompt = document.getElementById('systemPrompt').value.trim();
let chatMessages = [...messages];
if (systemPrompt && messages.length === 1) {
chatMessages.unshift({ role: 'system', content: systemPrompt });
}
const response = await fetch(`${API_BASE}/chat`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
messages: chatMessages,
stream: true,
temperature: temperature,
max_tokens: maxTokens
})
});
if (!response.ok) throw new Error('Failed to get response');
// Remove loading, prepare for streaming
removeLoadingMessage(loadingId);
const assistantId = addMessage('assistant', '');
const reader = response.body.getReader();
const decoder = new TextDecoder();
let buffer = '';
let fullContent = '';
while (true) {
const { done, value } = await reader.read();
if (done) break;
buffer += decoder.decode(value, { stream: true });
const lines = buffer.split('\n');
buffer = lines.pop();
for (const line of lines) {
if (line.startsWith('data: ')) {
try {
const data = JSON.parse(line.slice(6));
if (data.type === 'token') {
fullContent += data.content;
updateMessage(assistantId, fullContent);
// allow DOM to repaint between tokens in case chunks arrive together
await new Promise(r => setTimeout(r, 0));
} else if (data.type === 'done') {
messages.push({ role: 'assistant', content: fullContent });
}
} catch (e) {
console.error('Parse error:', e);
}
}
}
}
} catch (error) {
removeLoadingMessage(loadingId);
addMessage('assistant', `Error: ${error.message}. Please check if the API is running.`);
} finally {
isStreaming = false;
document.getElementById('sendBtn').disabled = false;
}
}
function addMessage(role, content) {
const container = document.getElementById('chatContainer');
const id = 'msg-' + Date.now();
const div = document.createElement('div');
div.className = `message ${role}-message`;
div.id = id;
div.innerHTML = `
<div class="message-avatar">${role === 'user' ? 'U' : '🤖'}</div>
<div class="message-content">${formatContent(content)}</div>
`;
container.appendChild(div);
scrollToBottom();
return id;
}
function updateMessage(id, content) {
const msg = document.getElementById(id);
if (msg) {
msg.querySelector('.message-content').innerHTML = formatContent(content);
scrollToBottom();
}
}
function addLoadingMessage() {
const id = 'loading-' + Date.now();
const container = document.getElementById('chatContainer');
const div = document.createElement('div');
div.className = 'message assistant-message';
div.id = id;
div.innerHTML = `
<div class="message-avatar">🤖</div>
<div class="message-content loading">
<div class="typing-indicator">
<span></span>
<span></span>
<span></span>
</div>
</div>
`;
container.appendChild(div);
scrollToBottom();
return id;
}
function removeLoadingMessage(id) {
const el = document.getElementById(id);
if (el) el.remove();
}
function formatContent(text) {
// Escape HTML
text = text.replace(/&/g, '&amp;')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;');
// Format code blocks
text = text.replace(/```(\w+)?\n([\s\S]*?)```/g, '<pre><code>$2</code></pre>');
text = text.replace(/`([^`]+)`/g, '<code>$1</code>');
// Format bold and italic
text = text.replace(/\*\*\*(.*?)\*\*\*/g, '<strong><em>$1</em></strong>');
text = text.replace(/\*\*(.*?)\*\*/g, '<strong>$1</strong>');
text = text.replace(/\*(.*?)\*/g, '<em>$1</em>');
// Convert newlines to <br> outside of pre blocks
text = text.replace(/\n/g, '<br>');
return text;
}
function scrollToBottom() {
const container = document.getElementById('chatContainer');
container.scrollTop = container.scrollHeight;
}
</script>
</body>
</html>