// Test Frontend Server
const express = require('express');
const path = require('path');
const cors = require('cors'); 

const fs = require('fs');

const app = express();
app.use(cors());
app.use(express.static('public'));
app.use(express.json());

// Serve circuit files from the shared volume
app.use('/circuits', express.static('/app/circuits/build'));
app.use('/keys', express.static('/app/keys'));

// Serve verification key as JSON
app.get('/api/circuit/vkey', (req, res) => {
    try {
        const vKeyPath = '/app/keys/license_verification_verification_key.json';
        if (fs.existsSync(vKeyPath)) {
            const vKey = JSON.parse(fs.readFileSync(vKeyPath, 'utf8'));
            res.json(vKey);
        } else {
            res.status(404).json({ error: 'Verification key not found' });
        }
    } catch (error) {
        res.status(500).json({ error: error.message });
    }
});

// Serve the test UI
app.get('/', (req, res) => {
    res.sendFile(path.join(__dirname, 'public', 'index.html'));
});

// Health check
app.get('/health', (req, res) => {
    res.json({ status: 'healthy' });
});

const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
    console.log(`Test UI server listening on port ${PORT}`);
    console.log(`Open http://localhost:${PORT} to access the test interface`);
});