private List<BubbleItem> getListBubbles()
 {
     LanguageManager languageManager = new LanguageManager(db);
     var languagesList = languageManager.GetDefaultData();
     List<BubbleItem> resultBubbles = new List<BubbleItem>();
     IEnumerable<ChatHistory> history = chatHistoryManager.ReadChatMessages(selectedChat);
     foreach (var item in history)
     {
         BubbleItem bubble = new BubbleItem();
         bubble.HistoryRowId = item.ID;
         bubble.TextTo = item.TextTo;
         bubble.TextFrom = item.TextFrom;
         bubble.IsRobotResponse = string.IsNullOrEmpty(item.TextFrom);
         bubble.Transcription = item.Transcription;
         bubble.Definition = item.Definition;
         bubble.LanguageTo = languagesList.FirstOrDefault(t => t.ID == item.LanguageTo);
         bubble.LanguageFrom = languagesList.FirstOrDefault(t => t.ID == item.LanguageFrom);
         bubble.InFavorites = item.InFavorites;
         resultBubbles.Add(bubble);
     }
     return resultBubbles;
 }