XXX add debug log for ping fail

internal/websocket/staleClients.go

@@ -16,12 +16,10 @@ func RemoveStaleClients() {
 	for range ticker.C {
 		mu.Lock()
 		for _, client := range Clients {
-			ping := sendPing(client)
+			if !sendPing(client) || isStale(client) {
-			stale := isStale(client)
-			if !ping || stale {
 				client.Conn.Close()
 				delete(Clients, client.Conn.LocalAddr())
-				helper.Logger.Info("Removed stale client", "host", client.RealIP, "lastPong", client.LastPong.Format("RFC3339"))
+				helper.Logger.Info("Removed stale client", "host", client.RealIP, "lastPong", client.LastPong)
 			}
 		}
 		mu.Unlock()
@@ -33,6 +31,7 @@ func sendPing(client *models.WebsocketClient) bool {
 	err := client.Conn.WriteMessage(websocket.PingMessage, nil)
 
 	if err != nil {
+		helper.Logger.Debug("ping failed", "host", client.RealIP)
 		return false
 	}