refactoring 1. step

src/index.js

@@ -0,0 +1,91 @@
+/**
+ * Quote & Invoice System - Main Entry Point
+ * Modularized Backend
+ */
+const express = require('express');
+const puppeteer = require('puppeteer');
+
+// Import routes
+const customerRoutes = require('./routes/customers');
+const quoteRoutes = require('./routes/quotes');
+const invoiceRoutes = require('./routes/invoices');
+const paymentRoutes = require('./routes/payments');
+const qboRoutes = require('./routes/qbo');
+const settingsRoutes = require('./routes/settings');
+
+// Import PDF service for browser initialization
+const { setBrowser } = require('./services/pdf-service');
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+
+// Global browser instance
+let browser = null;
+
+// Initialize browser on startup
+async function initBrowser() {
+    if (!browser) {
+        console.log('[BROWSER] Launching persistent browser...');
+        browser = await puppeteer.launch({
+            headless: 'new',
+            args: [
+                '--no-sandbox',
+                '--disable-setuid-sandbox',
+                '--disable-dev-shm-usage',
+                '--disable-gpu',
+                '--disable-software-rasterizer',
+                '--no-zygote',
+                '--single-process'
+            ],
+            protocolTimeout: 180000,
+            timeout: 180000
+        });
+        console.log('[BROWSER] Browser launched and ready');
+        
+        // Pass browser to PDF service
+        setBrowser(browser);
+        
+        // Restart browser if it crashes
+        browser.on('disconnected', () => {
+            console.log('[BROWSER] Browser disconnected, restarting...');
+            browser = null;
+            initBrowser();
+        });
+    }
+    return browser;
+}
+
+// Middleware
+app.use(express.json());
+app.use(express.static('public'));
+
+// Mount routes
+app.use('/api/customers', customerRoutes);
+app.use('/api/quotes', quoteRoutes);
+app.use('/api/invoices', invoiceRoutes);
+app.use('/api/payments', paymentRoutes);
+app.use('/api/qbo', qboRoutes);
+app.use('/api', settingsRoutes);
+
+// Start server
+async function startServer() {
+    await initBrowser();
+    
+    app.listen(PORT, () => {
+        console.log(`Quote System running on port ${PORT}`);
+    });
+}
+
+// Graceful shutdown
+process.on('SIGTERM', async () => {
+    if (browser) {
+        await browser.close();
+    }
+    const { pool } = require('./config/database');
+    await pool.end();
+    process.exit(0);
+});
+
+startServer();
+
+module.exports = app;