fix: watch chat check

client/bot/handlers/register.go

@@ -62,6 +62,7 @@ func Register(disp dispatcher.Dispatcher) {
 func listenMediaMessageEvent(ch chan userclient.MediaMessageEvent) {
 	logger := log.FromContext(userclient.GetCtx())
 	for event := range ch {
+		logger.Debug("Received media message event", "chat_id", event.ChatID, "file_name", event.File.Name())
 		ctx := event.Ctx
 		file := event.File
 		chats, err := database.GetWatchChatsByChatID(ctx, event.ChatID)
@@ -81,7 +82,9 @@ func listenMediaMessageEvent(ch chan userclient.MediaMessageEvent) {
 				filterData := filter[1]
 				switch filterType {
 				case "msgre":
-					if _, err := regexp.MatchString(filterData, msgText); err != nil {
+					if ok, err := regexp.MatchString(filterData, msgText); err != nil {
+						continue
+					} else if !ok {
 						continue
 					}
 				default:

client/user/userclient.go

@@ -113,7 +113,7 @@ func Login(ctx context.Context) (*gotgproto.Client, error) {
 		uc.Dispatcher.AddHandler(handlers.NewMessage(filters.Message.Media, func(ctx *ext.Context, u *ext.Update) error {
 			chatId := u.EffectiveChat().GetID()
 			watchChats, err := database.GetWatchChatsByChatID(ctx, chatId)
-			if err != nil || watchChats == nil {
+			if err != nil || len(watchChats) == 0 {
 				return dispatcher.EndGroups
 			}
 			return dispatcher.ContinueGroups

database/chat.go

@@ -3,7 +3,7 @@ package database
 import "context"
 
 func (user *User) WatchChat(ctx context.Context, chat WatchChat) error {
-	if user.WatchChats == nil {
+	if len(user.WatchChats) == 0 {
 		user.WatchChats = make([]WatchChat, 0)
 	}