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const express = require('express');
const path = require('path');
const cors = require('cors');
const app = express();
const PORT = process.env.PORT || 3000;
// Simple in-memory rate limit per IP (token bucket)
const buckets = new Map();
function rateLimit(req, res, next) {
const ip = req.ip || req.connection.remoteAddress || 'unknown';
const now = Date.now();
const cap = 100; // tokens
const refill = 50; // tokens per minute
const b = buckets.get(ip) || { tokens: cap, last: now };
const elapsed = (now - b.last) / 1000 / 60; // minutes
b.tokens = Math.min(cap, b.tokens + elapsed * refill);
b.last = now;
if (b.tokens < 1) {
return res.status(429).json({ error: 'Too many requests. Please slow down.' });
}
b.tokens -= 1;
buckets.set(ip, b);
next();
}
// Middleware
app.use(cors());
app.use(express.json({ limit: '2mb' }));
// Health check
app.get('/api/health', (req, res) => {
res.json({
ok: true,
time: Date.now(),
service: 'VibeCode Local AI',
version: '2.0.0'
});
});
// Template generation endpoint
app.post('/api/generate', rateLimit, async (req, res) => {
try {
const { prompt, template, style } = req.body || {};
if (!prompt || !template) {
return res.status(400).json({
error: 'Missing required parameters: prompt, template'
});
}
// Template configurations
const templates = {
vibecode: {
name: "VibeCode App",
description: "Modern web app with vibecoding aesthetics",
structure: {
html: `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>VibeApp</title>
<script src="https://cdn.tailwindcss.com"></script>
<style>
.gradient-bg {
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.glass {
backdrop-filter: blur(16px) saturate(180%);
background-color: rgba(255, 255, 255, 0.75);
border: 1px solid rgba(255, 255, 255, 0.125);
}
.neon {
text-shadow: 0 0 10px currentColor;
}
@keyframes float {
0%, 100% { transform: translateY(0px); }
50% { transform: translateY(-10px); }
}
.float { animation: float 6s ease-in-out infinite; }
</style>
</head>
<body class="gradient-bg min-h-screen">
<div class="container mx-auto px-4 py-8">
<header class="text-center mb-12">
<h1 class="text-4xl font-bold text-white mb-4 neon float">${prompt}</h1>
<p class="text-white/80">Modern vibes, clean code, smooth UX</p>
</header>
<div class="grid md:grid-cols-3 gap-6">
<div class="glass rounded-lg p-6 shadow-lg hover:shadow-xl transition">
<h3 class="text-lg font-semibold mb-3">Dashboard</h3>
<p class="text-sm opacity-80">Clean overview of your data</p>
</div>
<div class="glass rounded-lg p-6 shadow-lg hover:shadow-xl transition">
<h3 class="text-lg font-semibold mb-3">Analytics</h3>
<p class="text-sm opacity-80">Real-time insights</p>
</div>
<div class="glass rounded-lg p-6 shadow-lg hover:shadow-xl transition">
<h3 class="text-lg font-semibold mb-3">Settings</h3>
<p class="text-sm opacity-80">Configure your vibe</p>
</div>
</div>
</div>
</body>
</html>`,
js: `// VibeApp JavaScript
console.log('${prompt} loaded!');
document.addEventListener('DOMContentLoaded', function() {
// Add smooth animations
const cards = document.querySelectorAll('.glass');
cards.forEach((card, index) => {
card.style.opacity = '0';
card.style.transform = 'translateY(20px)';
setTimeout(() => {
card.style.transition = 'all 0.5s ease';
card.style.opacity = '1';
card.style.transform = 'translateY(0)';
}, index * 100);
});
// Add hover effects
const hero = document.querySelector('.neon');
if (hero) {
hero.addEventListener('mouseenter', function() {
this.style.textShadow = '0 0 20px currentColor, 0 0 30px currentColor';
});
hero.addEventListener('mouseleave', function() {
this.style.textShadow = '0 0 10px currentColor';
});
}
});`
}
},
website: {
name: "Clean Website",
description: "Professional business website",
structure: {
html: `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Professional Website - ${prompt}</title>
<script src="https://cdn.tailwindcss.com"></script>
</head>
<body class="bg-white">
<nav class="bg-white shadow-sm border-b">
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="flex justify-between h-16">
<div class="flex items-center">
<h1 class="text-xl font-bold text-gray-900">YourBrand</h1>
</div>
<div class="hidden md:flex items-center space-x-8">
<a href="#" class="text-gray-600 hover:text-gray-900 transition">Home</a>
<a href="#" class="text-gray-600 hover:text-gray-900 transition">About</a>
<a href="#" class="text-gray-600 hover:text-gray-900 transition">Services</a>
<a href="#" class="text-gray-600 hover:text-gray-900 transition">Contact</a>
</div>
</div>
</div>
</nav>
<main>
<section class="bg-gradient-to-r from-blue-600 to-purple-600 text-white">
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-24">
<div class="text-center">
<h1 class="text-5xl font-bold mb-6">${prompt}</h1>
<p class="text-xl mb-8">We create amazing digital experiences</p>
<button class="bg-white text-blue-600 px-8 py-3 rounded-lg font-semibold hover:bg-gray-100 transition">
Get Started
</button>
</div>
</div>
</section>
<section class="py-16">
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="grid md:grid-cols-3 gap-8">
<div class="text-center">
<div class="w-16 h-16 bg-blue-100 rounded-full flex items-center justify-center mx-auto mb-4">
<svg class="w-8 h-8 text-blue-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 10V3L4 14h7v7l9-11h-7z"></path>
</svg>
</div>
<h3 class="text-lg font-semibold mb-2">Fast & Efficient</h3>
<p class="text-gray-600">Lightning-fast performance and optimized workflows</p>
</div>
<div class="text-center">
<div class="w-16 h-16 bg-purple-100 rounded-full flex items-center justify-center mx-auto mb-4">
<svg class="w-8 h-8 text-purple-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
</svg>
</div>
<h3 class="text-lg font-semibold mb-2">Quality Assured</h3>
<p class="text-gray-600">Every project meets our highest standards</p>
</div>
<div class="text-center">
<div class="w-16 h-16 bg-green-100 rounded-full flex items-center justify-center mx-auto mb-4">
<svg class="w-8 h-8 text-green-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M18.364 5.636l-3.536 3.536m0 5.656l3.536 3.536M9.172 9.172L5.636 5.636m3.536 9.192L5.636 18.364M12 2.25a9.75 9.75 0 109.75 9.75A9.75 9.75 0 0012 2.25z"></path>
</svg>
</div>
<h3 class="text-lg font-semibold mb-2">24/7 Support</h3>
<p class="text-gray-600">Round-the-clock assistance when you need it</p>
</div>
</div>
</div>
</section>
</main>
</body>
</html>`,
js: `// Professional Website JavaScript
document.addEventListener('DOMContentLoaded', function() {
console.log('Professional website loaded successfully');
// Smooth scrolling for anchor links
document.querySelectorAll('a[href^="#"]').forEach(anchor => {
anchor.addEventListener('click', function (e) {
e.preventDefault();
document.querySelector(this.getAttribute('href')).scrollIntoView({
behavior: 'smooth'
});
});
});
// Add intersection observer for animations
const observerOptions = {
threshold: 0.1,
rootMargin: '0px 0px -50px 0px'
};
const observer = new IntersectionObserver(function(entries) {
entries.forEach(entry => {
if (entry.isIntersecting) {
entry.target.style.opacity = '1';
entry.target.style.transform = 'translateY(0)';
}
});
}, observerOptions);
// Observe elements for animation
document.querySelectorAll('.text-center').forEach(el => {
el.style.opacity = '0';
el.style.transform = 'translateY(20px)';
el.style.transition = 'all 0.6s ease';
observer.observe(el);
});
});`
}
},
saas: {
name: "SaaS Dashboard",
description: "Analytics & admin panel",
structure: {
html: `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>SaaS Dashboard - ${prompt}</title>
<script src="https://cdn.tailwindcss.com"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
</head>
<body class="bg-gray-50">
<div class="min-h-screen flex">
<!-- Sidebar -->
<div class="w-64 bg-white shadow-sm">
<div class="p-6">
<h2 class="text-xl font-bold text-gray-800">Dashboard</h2>
</div>
<nav class="px-4 space-y-2">
<a href="#" class="block px-3 py-2 text-gray-600 rounded-md bg-blue-50 border-r-2 border-blue-500">Overview</a>
<a href="#" class="block px-3 py-2 text-gray-600 hover:bg-gray-50 rounded-md">Analytics</a>
<a href="#" class="block px-3 py-2 text-gray-600 hover:bg-gray-50 rounded-md">Users</a>
<a href="#" class="block px-3 py-2 text-gray-600 hover:bg-gray-50 rounded-md">Settings</a>
</nav>
</div>
<!-- Main Content -->
<div class="flex-1">
<header class="bg-white shadow-sm border-b px-6 py-4">
<h1 class="text-2xl font-semibold text-gray-900">${prompt}</h1>
<p class="text-gray-600">Welcome back! Here's what's happening with your business.</p>
</header>
<main class="p-6">
<div class="grid grid-cols-1 md:grid-cols-4 gap-6 mb-8">
<div class="bg-white p-6 rounded-lg shadow-sm hover:shadow-md transition">
<div class="flex items-center justify-between">
<div>
<h3 class="text-sm font-medium text-gray-500">Total Users</h3>
<p class="text-2xl font-semibold text-gray-900">1,234</p>
<span class="text-sm text-green-600">+12%</span>
</div>
<div class="w-12 h-12 bg-blue-100 rounded-full flex items-center justify-center">
<svg class="w-6 h-6 text-blue-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4.354a4 4 0 110 5.292M15 21H3v-1a6 6 0 0112 0v1zm0 0h6v-1a6 6 0 00-9-5.197m13.5-9a2.5 2.5 0 11-5 0 2.5 2.5 0 015 0z"></path>
</svg>
</div>
</div>
</div>
<div class="bg-white p-6 rounded-lg shadow-sm hover:shadow-md transition">
<div class="flex items-center justify-between">
<div>
<h3 class="text-sm font-medium text-gray-500">Revenue</h3>
<p class="text-2xl font-semibold text-gray-900">$12,345</p>
<span class="text-sm text-green-600">+8.2%</span>
</div>
<div class="w-12 h-12 bg-green-100 rounded-full flex items-center justify-center">
<svg class="w-6 h-6 text-green-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8c-1.657 0-3 .895-3 2s1.343 2 3 2 3 .895 3 2-1.343 2-3 2m0-8c1.11 0 2.08.402 2.599 1M12 8V7m0 1v8m0 0v1m0-1c-1.11 0-2.08-.402-2.599-1"></path>
</svg>
</div>
</div>
</div>
<div class="bg-white p-6 rounded-lg shadow-sm hover:shadow-md transition">
<div class="flex items-center justify-between">
<div>
<h3 class="text-sm font-medium text-gray-500">Growth</h3>
<p class="text-2xl font-semibold text-gray-900">+23%</p>
<span class="text-sm text-green-600">+4.1%</span>
</div>
<div class="w-12 h-12 bg-purple-100 rounded-full flex items-center justify-center">
<svg class="w-6 h-6 text-purple-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 7h8m0 0v8m0-8l-8 8-4-4-6 6"></path>
</svg>
</div>
</div>
</div>
<div class="bg-white p-6 rounded-lg shadow-sm hover:shadow-md transition">
<div class="flex items-center justify-between">
<div>
<h3 class="text-sm font-medium text-gray-500">Active Users</h3>
<p class="text-2xl font-semibold text-gray-900">856</p>
<span class="text-sm text-red-600">-2.1%</span>
</div>
<div class="w-12 h-12 bg-yellow-100 rounded-full flex items-center justify-center">
<svg class="w-6 h-6 text-yellow-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"></path>
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z"></path>
</svg>
</div>
</div>
</div>
</div>
<div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
<div class="bg-white rounded-lg shadow-sm p-6">
<h3 class="text-lg font-medium text-gray-900 mb-4">Revenue Chart</h3>
<canvas id="revenueChart" width="400" height="200"></canvas>
</div>
<div class="bg-white rounded-lg shadow-sm p-6">
<h3 class="text-lg font-medium text-gray-900 mb-4">User Activity</h3>
<canvas id="activityChart" width="400" height="200"></canvas>
</div>
</div>
</main>
</div>
</div>
</body>
</html>`,
js: `// SaaS Dashboard JavaScript
document.addEventListener('DOMContentLoaded', function() {
// Initialize revenue chart
const ctx1 = document.getElementById('revenueChart').getContext('2d');
new Chart(ctx1, {
type: 'line',
data: {
labels: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun'],
datasets: [{
label: 'Revenue',
data: [12000, 19000, 15000, 25000, 22000, 30000],
borderColor: 'rgb(59, 130, 246)',
backgroundColor: 'rgba(59, 130, 246, 0.1)',
tension: 0.4,
fill: true
}]
},
options: {
responsive: true,
plugins: {
legend: {
display: false
}
},
scales: {
y: {
beginAtZero: true,
ticks: {
callback: function(value) {
return ' + value.toLocaleString();
}
}
}
}
}
});
// Initialize activity chart
const ctx2 = document.getElementById('activityChart').getContext('2d');
new Chart(ctx2, {
type: 'doughnut',
data: {
labels: ['Desktop', 'Mobile', 'Tablet'],
datasets: [{
data: [45, 35, 20],
backgroundColor: [
'rgba(59, 130, 246, 0.8)',
'rgba(16, 185, 129, 0.8)',
'rgba(245, 158, 11, 0.8)'
]
}]
},
options: {
responsive: true,
plugins: {
legend: {
position: 'bottom'
}
}
}
});
// Add real-time updates simulation
function updateMetrics() {
const metrics = document.querySelectorAll('.bg-white.p-6');
metrics.forEach(metric => {
const value = metric.querySelector('.text-2xl');
if (value && Math.random() > 0.7) {
// Simulate small changes
const currentValue = parseFloat(value.textContent.replace(/[^0-9.]/g, ''));
const change = (Math.random() - 0.5) * 0.1;
const newValue = currentValue * (1 + change);
value.textContent = value.textContent.replace(/\d+/, Math.round(newValue));
}
});
}
// Update metrics every 5 seconds
setInterval(updateMetrics, 5000);
});`
}
}
};
const selectedTemplate = templates[template] || templates.vibecode;
// Enhance based on style preferences
let generatedHTML = selectedTemplate.structure.html;
let generatedJS = selectedTemplate.structure.js;
// Apply style modifications
if (style) {
if (style.includes('dark')) {
generatedHTML = generatedHTML
.replace(/bg-white/g, 'bg-gray-900')
.replace(/text-gray-900/g, 'text-white')
.replace(/text-gray-600/g, 'text-gray-300')
.replace(/text-gray-500/g, 'text-gray-400')
.replace(/bg-gray-50/g, 'bg-gray-800')
.replace(/border-gray-200/g, 'border-gray-700')
.replace(/shadow-sm/g, 'shadow-lg');
}
if (style.includes('colorful') || style.includes('rainbow')) {
generatedHTML = generatedHTML.replace(
'background: linear-gradient(135deg, #667eea 0%, #764ba2 100%)',
'background: linear-gradient(135deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57)'
).replace(
'from-blue-600 to-purple-600',
'from-red-500 via-yellow-500 to-green-500'
);
}
}
const fullHTML = generatedHTML.replace('</body>', `<script>${generatedJS}</script></body>`);
res.json({
success: true,
template: selectedTemplate.name,
html: generatedHTML,
js: generatedJS,
preview: fullHTML,
description: selectedTemplate.description
});
} catch (err) {
console.error('Template generation error:', err);
res.status(500).json({ error: 'Internal server error' });
}
});
// Serve static files AFTER API routes to ensure API routes take precedence
app.use(express.static(path.join(__dirname)));
app.listen(PORT, () => {
console.log(`VibeCode Local AI server running at http://localhost:${PORT}`);
console.log('API routes registered:');
console.log(' GET /api/health');
console.log(' POST /api/generate');
});
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