configurable default user limit

config.go

@@ -15,6 +15,7 @@ var defaultConfig = configPayload{
 	Token:            "TOKEN",
 	Timeout:          120,
 	ChannelID:        []string{},
+	DefaultUserLimit: 2,
 }
 
 type configPayload struct {
@@ -22,6 +23,7 @@ type configPayload struct {
 	Token            string
 	Timeout          int
 	ChannelID        []string
+	DefaultUserLimit int
 }
 
 func init() {
@@ -51,6 +53,10 @@ func parse() {
 }
 
 func configLate() {
+	if config.DefaultUserLimit > 99 || config.DefaultUserLimit < 1 {
+		log.Warnf("Value %v is out of range for default user limit.", config.DefaultUserLimit)
+		config.DefaultUserLimit = defaultConfig.DefaultUserLimit
+	}
 	timeout = time.Duration(config.Timeout) * time.Second
 	allowedChannels = make(map[string]bool)
 	categoryMap = make(map[string]string)

instance.go

@@ -78,7 +78,7 @@ func setupInstance(member *discordgo.Member) *chatInstance {
 		Type:      discordgo.ChannelTypeGuildVoice,
 		Topic:     "Volatile channel created by " + member.User.ID,
 		Bitrate:   64000,
-		UserLimit: 10,
+		UserLimit: config.DefaultUserLimit,
 		ParentID:  parentID,
 	})
 	if err != nil {