public List <Movie> RecommendedMovies(int userId)
{
var consumerList = _context.UsersMovies.Where(um => um.UserId == userId).Include(um => um.Movie).ToList();
List <Model.Movie> usersMovies = new List <Movie>();
foreach (var movie in consumerList)
{
usersMovies.Add(_mapper.Map <Model.Movie>(movie.Movie));
}
var allMovies = _mapper.Map <List <Model.Movie> >(_context.Movies.ToList());
foreach (var item in usersMovies)
{
allMovies.RemoveAll(m => m.MovieId == item.MovieId);
}
List <ItemScore <Model.Movie> > allMoviesWithScore = new List <ItemScore <Movie> >();
foreach (var movie in allMovies)
{
ItemScore <Model.Movie> newItem = new ItemScore <Movie>()
{
Item = movie,
Score = 0
};
allMoviesWithScore.Add(newItem);
}
foreach (var movie in allMoviesWithScore)
{
foreach (var usersMovie in usersMovies)
{
movie.Score += _similarity.CalculateSimilarity(_wordBagGenerator.GenerateWordBag <Model.Movie>(movie.Item), _wordBagGenerator.GenerateWordBag <Model.Movie>(usersMovie));
}
}
allMoviesWithScore.Sort((a, b) => b.Score.CompareTo(a.Score));
List <Model.Movie> recommendedMovies = new List <Movie>();
foreach (var movie in allMoviesWithScore)
{
recommendedMovies.Add(movie.Item);
}
return(recommendedMovies);
}
