const express = require('express');
const app = express();
const PORT = process.env.PORT || 3000;

app.use(express.json());

app.get('/', (req, res) => {
    res.json({
        message: 'Hello, World!',
        status: 'OK'
    });
});

app.get('/health', (req, res) => {
    res.status(200).json({
        status: 'healthy',
        timestamp: new Date().toISOString()
    });
});

app.post('/api/data', (req, res) => {
    const data = req.body;
    res.json({
        message: 'Data received',
        data: data,
        timestamp: new Date().toISOString()
    });
});

app.use((req, res) => {
    res.status(404).json({ error: 'Invalid route' });
});

app.use((err, req, res, next) => {
    console.error(err.stack);
    res.status(500).json({ error: 'Something went wrong!' });
});

app.listen(PORT, () => {
    console.log(`✅ Server running on port ${PORT}`);
    console.log(`📡 Local: http://localhost:${PORT}`);
});