Initial commit: Lageplan v1.0 - Next.js 15.5, React 19

src/lib/socket.ts

@@ -0,0 +1,25 @@
+'use client'
+
+import { io, Socket } from 'socket.io-client'
+
+let socket: Socket | null = null
+
+export function getSocket(): Socket {
+  if (!socket) {
+    socket = io({
+      path: '/socket.io',
+      transports: ['polling', 'websocket'],
+      upgrade: true,
+      reconnectionAttempts: 10,
+      reconnectionDelay: 2000,
+      timeout: 10000,
+    })
+    socket.on('connect', () => {
+      console.log('[Socket.io] Connected:', socket?.id)
+    })
+    socket.on('connect_error', (err) => {
+      console.warn('[Socket.io] Connection error:', err.message)
+    })
+  }
+  return socket
+}