send message in mumble when user joins in discord

bridge.go

@@ -14,6 +14,16 @@ import (
 	"layeh.com/gumble/gumble"
 )
 
+type BridgeState struct {
+	ActiveConn       chan bool
+	Connected        bool
+	Client           *gumble.Client
+	CurrentChannel   *gumble.Channel
+	MumbleUserCount  int
+	DiscordUserCount int
+	AutoChan         chan bool
+}
+
 func startBridge(discord *discordgo.Session, discordGID string, discordCID string, config *gumble.Config, mumbleAddr string, mumbleInsecure bool, die chan bool) {
 	dgv, err := discord.ChannelVoiceJoin(discordGID, discordCID, false, false)
 	if err != nil {
@@ -43,6 +53,13 @@ func startBridge(discord *discordgo.Session, discordGID string, discordCID strin
 		return
 	}
 	defer mumble.Disconnect()
+	Bridge.Client = mumble
+	if BridgeConf.MumbleChannel != "" {
+		//join specified channel
+		startingChannel := mumble.Channels.Find(BridgeConf.MumbleChannel)
+		mumble.Self.Move(startingChannel)
+		Bridge.CurrentChannel = startingChannel
+	}
 
 	// Shared Channels
 	// Shared channels pass PCM information in 10ms chunks [480]int16
@@ -97,6 +114,9 @@ func startBridge(discord *discordgo.Session, discordGID string, discordCID strin
 		close(m.Close)
 		close(toMumble)
 		Bridge.Connected = false
+		Bridge.Client = nil
+		Bridge.MumbleUserCount = 0
+		Bridge.DiscordUserCount = 0
 	}
 }
 

config.go

@@ -14,20 +14,13 @@ type BridgeConfig struct {
 	Config         *gumble.Config
 	MumbleAddr     string
 	MumbleInsecure bool
+	MumbleChannel  string
 	Auto           bool
 	Command        string
 	GID            string
 	CID            string
 }
 
-type BridgeState struct {
-	ActiveConn       chan bool
-	Connected        bool
-	MumbleUserCount  int
-	DiscordUserCount int
-	AutoChan         chan bool
-}
-
 func lookupEnvOrString(key string, defaultVal string) string {
 	if val, ok := os.LookupEnv(key); ok {
 		return val

handlers.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"log"
 	"strings"
 	"time"
@@ -139,6 +140,12 @@ func voiceUpdate(s *discordgo.Session, event *discordgo.VoiceStateUpdate) {
 	if event.GuildID == BridgeConf.GID {
 		if event.ChannelID == BridgeConf.CID {
 			log.Println("user joined watched discord channel")
+			u, err := s.User(event.UserID)
+			if err != nil {
+				log.Printf("error looking up user for uid %v", event.UserID)
+			} else {
+				Bridge.CurrentChannel.Send(fmt.Sprintf("%v has joined Discord channel\n", u.Username), false)
+			}
 			Bridge.DiscordUserCount = Bridge.DiscordUserCount + 1
 		}
 		if event.ChannelID == "" {