public IObservable <IEnumerable <AutocompleteSuggestion> > Execute()
        {
            var wordsToQuery = queryInfo.Text.SplitToQueryWords();

            switch (queryInfo.SuggestionType)
            {
            case AutocompleteSuggestionType.Projects:
                return(interactorFactory.GetProjectsAutocompleteSuggestions(wordsToQuery).Execute());

            case AutocompleteSuggestionType.Tags:
                return(interactorFactory.GetTagsAutocompleteSuggestions(wordsToQuery).Execute());
            }

            return(wordsToQuery.Count == 0
                ? Observable.Return(QuerySymbolSuggestion.Suggestions)
                : interactorFactory.GetTimeEntriesAutocompleteSuggestions(wordsToQuery).Execute());
        }