count how many users are actually in channel

bridge.go

@@ -20,6 +20,7 @@ type BridgeState struct {
 	Connected        bool
 	Client           *gumble.Client
 	DiscordUsers     map[string]bool
+	MumbleUsers      map[string]bool
 	MumbleUserCount  int
 	DiscordUserCount int
 	AutoChan         chan bool
@@ -46,7 +47,8 @@ func startBridge(discord *discordgo.Session, discordGID string, discordCID strin
 		tlsConfig.InsecureSkipVerify = true
 	}
 	config.Attach(gumbleutil.Listener{
-		Connect: mumbleConnect,
+		Connect:    mumbleConnect,
+		UserChange: mumbleUserChange,
 	})
 	mumble, err := gumble.DialWithDialer(new(net.Dialer), mumbleAddr, config, &tlsConfig)
 
@@ -158,7 +160,11 @@ func discordStatusUpdate(dg *discordgo.Session, host, port string) {
 			if curr == 0 {
 				status = ""
 			} else {
-				status = fmt.Sprintf("%v users in Mumble\n", curr)
+				if len(Bridge.MumbleUsers) > 0 {
+					status = fmt.Sprintf("%v/%v users in Mumble\n", len(Bridge.MumbleUsers), curr)
+				} else {
+					status = fmt.Sprintf("%v users in Mumble\n", curr)
+				}
 			}
 			dg.UpdateListeningStatus(status)
 		}

handlers.go

@@ -203,3 +203,17 @@ func mumbleConnect(e *gumble.ConnectEvent) {
 		}
 	}
 }
+
+func mumbleUserChange(e *gumble.UserChangeEvent) {
+	if e.Type.Has(gumble.UserChangeConnected) || e.Type.Has(gumble.UserChangeChannel) || e.Type.Has(gumble.UserChangeDisconnected) {
+		Bridge.MumbleUsers = make(map[string]bool)
+		for _, user := range Bridge.Client.Self.Channel.Users {
+			//note, this might be too slow for really really big channels?
+			//event listeners block while processing
+			//also probably bad to rebuild the set every user change.
+			if user.Name != Bridge.Client.Self.Name {
+				Bridge.MumbleUsers[user.Name] = true
+			}
+		}
+	}
+}