server.js

require('dotenv').config();
const express = require('express');
const cors = require('cors');
const path = require('path');
const apiRoutes = require('./src/routes/api');
const BrowserManager = require('./src/services/BrowserManager');

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

app.use(cors());
app.use(express.json());
app.use(express.static(path.join(__dirname, 'public')));

// Main OpenAI Compatible Route
app.use('/v1', apiRoutes);

// Health Check
app.get('/health', (req, res) => res.json({ status: 'ok', deepseek_proxy: true }));

app.listen(PORT, async () => {
    console.log(`🚀 DeepSeek Reverse Proxy API is running on http://localhost:${PORT}`);
    
    // Natively boot Playwright so it's ready for incoming API requests instantly
    try {
        await BrowserManager.initialize();
        console.log("✅ Playwright Browser Engine Initialized!");
    } catch (e) {
         console.error("❌ Failed to initialize BrowserManager:", e);
    }
});

// Graceful shutdown: Playwright MUST be closed properly or the session cookies will NOT save to disk!
process.on('SIGINT', async () => {
    console.log("🛑 Shutting down proxy server safely to save your browser session...");
    if (BrowserManager && BrowserManager.browser) {
        await BrowserManager.browser.close();
    }
    process.exit();
});