Fix Telegram token being checked for content instead of topic

auth.go

@@ -85,8 +85,11 @@ func NotifyTelegram(msg string) {
 		return
 	}
 	client := &http.Client{}
-	var data = strings.NewReader("chat_id=" + Cfg.TelegramChat + "&text=" + msg)
-	req, err := http.NewRequest("POST", "https://api.telegram.org/bot"+Cfg.TelegramToken+"/sendMessage", data)
+	data := "chat_id=" + Cfg.TelegramChat + "&text=" + msg
+	if Cfg.TelegramTopic != "" {
+		data += "&message_thread_id=" + Cfg.TelegramTopic
+	}
+	req, err := http.NewRequest("POST", "https://api.telegram.org/bot"+Cfg.TelegramToken+"/sendMessage", strings.NewReader(data))
 	if err != nil {
 		slog.Error("failed telegram request", "error", err)
 		return

config.go

@@ -30,6 +30,7 @@ type Config struct {
 
 	TelegramToken string `config:"tg_token" type:"string"`
 	TelegramChat  string `config:"tg_chat" type:"string"`
+	TelegramTopic string `config:"tg_topic" type:"string"`
 }
 
 var DefaultConfig = Config{