M configs.go → configs.go

@@ -1138,8 +1138,9 @@ }
 
 // DeleteMessageConfig contains information of a message in a chat to delete.
 type DeleteMessageConfig struct {
-	ChatID    int64
-	MessageID int
+	ChannelUsername string
+	ChatID          int64
+	MessageID       int
 }
 
 func (config DeleteMessageConfig) method() string {
@@ -1149,7 +1150,12 @@
 func (config DeleteMessageConfig) values() (url.Values, error) {
 	v := url.Values{}
 
-	v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
+	if config.ChannelUsername == "" {
+		v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
+	} else {
+		v.Add("chat_id", config.ChannelUsername)
+	}
+
 	v.Add("message_id", strconv.Itoa(config.MessageID))
 
 	return v, nil