const express = require('express');
const http = require('http');
const WebSocket = require('ws');
const app = express();
const server = http.createServer(app);
const wss = new WebSocket.Server({ server });
const rooms = new Map();
app.get('/', (req, res) => {
res.send(`
Dubem Realtime Rooms
Join a Room & Send Messages
`);
});
wss.on('connection', ws => {
let currentRoom = null;
ws.on('message', raw => {
let msg;
try { msg = JSON.parse(raw); } catch (e) { return; }
if (msg.action === 'join' && msg.roomId) {
if (currentRoom && rooms.has(currentRoom)) {
rooms.get(currentRoom).delete(ws);
}
currentRoom = msg.roomId;
if (!rooms.has(currentRoom)) rooms.set(currentRoom, new Set());
rooms.get(currentRoom).add(ws);
}
if (msg.action === 'post' && msg.roomId && msg.message) {
const clients = rooms.get(msg.roomId);
if (!clients) return;
const payload = JSON.stringify({
roomId: msg.roomId,
message: msg.message,
timestamp: Date.now()
});
for (const client of clients) {
if (client.readyState === WebSocket.OPEN) {
client.send(payload);
}
}
}
});
ws.on('close', () => {
if (currentRoom && rooms.has(currentRoom)) {
rooms.get(currentRoom).delete(ws);
}
});
});
const PORT = process.env.PORT || 7860;
server.listen(PORT, () => console.log(`✅ Activity server running at http://localhost:${PORT}`));