Added ping.

src/schat.js

@@ -149,7 +149,14 @@ async function connect(bot, games) {
 				},
 			});
 
-			socket.ws.on('message', async (msg) => {
+			socket.ws.on('message', async (msgData) => {
+				const msg = msgData.toString();
+
+				if (typeof msg === 'string' && msg.includes('pong')) {
+					logger.debug(`Received pong ${msg.split(':')[1]}`);
+					return;
+				}
+
 				const [domain, data] = JSON.parse(msg);
 
 				logger.debug(`Received ${domain}: ${JSON.stringify(data)}`);
@@ -187,6 +194,21 @@ async function connect(bot, games) {
 		socket.ws.send(JSON.stringify([domain, data]));
 	};
 
+	function ping() {
+		setTimeout(() => {
+			if (socket.ws && socket.ws?.readyState === socket.ws?.OPEN) {
+				const now = Date.now();
+
+				socket.ws.send(`ping:${now}`);
+				logger.debug(`Sent ping ${now}`);
+			}
+
+			ping();
+		}, 10000);
+	}
+
+	ping();
+
 	socket.connect();
 
 	return socket;