WebSocket receiver

server.mjs

@@ -0,0 +1,60 @@
+import { createServer } from 'http';
+import next from 'next';
+import { WebSocketServer } from 'ws';
+
+const dev = process.env.NODE_ENV !== 'production';
+const app = next({ dev });
+const handle = app.getRequestHandler();
+
+app.prepare().then(() => {
+  const server = createServer((req, res) => {
+    handle(req, res);
+  });
+  
+  const clients = {};
+
+  const wss = new WebSocketServer({ noServer: true });
+
+  // Handle WebSocket connections
+  wss.on('connection', (ws, req) => {
+    ws.on('message', (msg) => {
+      const runId = msg.toString();
+      if (!clients[runId]) clients[runId] = []
+      clients[runId].push(ws);
+    });
+  });
+
+  // Handle POST requests
+  server.on('request', async (req, res) => {
+    console.log(req.method, req.url)
+    if (req.method === 'POST' && req.url === '/api/run/move') {
+      let body = '';
+      req.on('data', chunk => body += chunk);
+      req.on('end', () => {
+        const move = JSON.parse(body);
+
+        clients[move.runId]?.forEach(client => {
+          if (client.readyState === client.OPEN) {
+            client.send(JSON.stringify(move.moves));
+          }
+        });
+
+        res.writeHead(200, { 'Content-Type': 'application/json' });
+        res.end(JSON.stringify({ status: 'ok' }));
+      });
+    }
+  });
+
+  // Upgrade HTTP connections to WebSocket when needed
+  server.on('upgrade', (req, socket, head) => {
+    if (req.url === '/api/view-run') {
+      wss.handleUpgrade(req, socket, head, (ws) => {
+        wss.emit('connection', ws, req);
+      });
+    }
+  });
+
+  server.listen(3000, () => {
+    console.log('Server running on http://localhost:3000');
+  });
+});