🐈nanobot: hello world!

bridge/src/index.ts

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+#!/usr/bin/env node
+/**
+ * nanobot WhatsApp Bridge
+ * 
+ * This bridge connects WhatsApp Web to nanobot's Python backend
+ * via WebSocket. It handles authentication, message forwarding,
+ * and reconnection logic.
+ * 
+ * Usage:
+ *   npm run build && npm start
+ *   
+ * Or with custom settings:
+ *   BRIDGE_PORT=3001 AUTH_DIR=~/.nanobot/whatsapp npm start
+ */
+
+// Polyfill crypto for Baileys in ESM
+import { webcrypto } from 'crypto';
+if (!globalThis.crypto) {
+  (globalThis as any).crypto = webcrypto;
+}
+
+import { BridgeServer } from './server.js';
+import { homedir } from 'os';
+import { join } from 'path';
+
+const PORT = parseInt(process.env.BRIDGE_PORT || '3001', 10);
+const AUTH_DIR = process.env.AUTH_DIR || join(homedir(), '.nanobot', 'whatsapp-auth');
+
+console.log('🐈 nanobot WhatsApp Bridge');
+console.log('========================\n');
+
+const server = new BridgeServer(PORT, AUTH_DIR);
+
+// Handle graceful shutdown
+process.on('SIGINT', async () => {
+  console.log('\n\nShutting down...');
+  await server.stop();
+  process.exit(0);
+});
+
+process.on('SIGTERM', async () => {
+  await server.stop();
+  process.exit(0);
+});
+
+// Start the server
+server.start().catch((error) => {
+  console.error('Failed to start bridge:', error);
+  process.exit(1);
+});