public async Task <IList <FavouriteSpot> > SearchForLocationsAsync(string searchText, double latitude, double longitude)
        {
            if (String.IsNullOrEmpty(searchText))
            {
                return(new List <FavouriteSpot>());
            }

            return(await Task.FromResult(
                       FixedSpots
                       .Where(spot => spot.Name.ToLower().Contains(searchText.ToLower()))
                       .ToList()));
        }
        public async Task <bool> SaveFavoriteSpotAsync(FavouriteSpot spot)
        {
            FixedSpots.Add(spot);

            return(await Task.FromResult(true));
        }