// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync(int id)
{
Artist.ArtistID = id;
if (!ModelState.IsValid)
{
error = string.Join(" | ", ModelState.Values
.SelectMany(v => v.Errors)
.Select(e => e.ErrorMessage));
error += id.ToString();
return(Page());
}
Artist.Listens = 0;
Artist.Rating = 1;
Artist.WordVec = Vspace.ConvertToString(Vspace.Add(_textprocessor.PredictText(Artist.Name), _textprocessor.PredictText(Artist.Description)));
await _access.Create(id, Artist);
return(RedirectToPage("./Index"));
}
public async Task OnGetAsync()
{
if (SearchString.Length > 0)
{
List <Song> songs = _context.Song.ToList();
var word_vector = _textprocessor.PredictText(SearchString);
lv = NaturalLanguage.vector.VectorSpace.ToString(word_vector);
if (!string.IsNullOrEmpty(SearchString))
{
foreach (var song in songs)
{
msg += song.Name + ": " + NaturalLanguage.vector.VectorSpace.Loss(word_vector, NaturalLanguage.vector.VectorSpace.ToArray(song.WordVec)) + ", ";
}
songs.Sort((a, b) => NaturalLanguage.vector.VectorSpace.Loss(word_vector,
NaturalLanguage.vector.VectorSpace.ToArray(a.WordVec)).CompareTo(NaturalLanguage.vector.VectorSpace.Loss(word_vector, NaturalLanguage.vector.VectorSpace.ToArray(b.WordVec))));
}
Song = songs;
}
else
{
Song = await _context.Song.ToListAsync();
}
}
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
error = string.Join(" | ", ModelState.Values
.SelectMany(v => v.Errors)
.Select(e => e.ErrorMessage));
return(Page());
}
Song.WordVec = NaturalLanguage.vector.VectorSpace.ToString(_textprocessor.PredictText(Song.Lyrics));
_context.Song.Add(Song);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int?id)
{
file = Path.Combine(_environment.ContentRootPath, "wwwroot", "music", UploadedFile.FileName);
using (var fileStream = new FileStream(file, FileMode.Create))
{
await UploadedFile.CopyToAsync(fileStream);
}
string filename = UploadedFile.FileName;
filename.Replace(" ", string.Empty);
Song.Filepath = "/music/" + filename;
User user = _context.User.FirstOrDefault(u => u.Username == User.Identity.Name);
Artist artist = _context.Artist.FirstOrDefault(a => a.ArtistID == id);
Genre genre = _context.Genre.FirstOrDefault(g => g.Name == Song.Genre.Name);
if (genre == null)
{
genre = new Genre
{
Name = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(Song.Genre.Name.ToLower()),
WordVec = VSpace.ConvertToString(_textprocessor.PredictText(Song.Genre.Name))
};
_context.Genre.Add(genre);
}
Song.Genre = genre;
var album = _context.Album.FirstOrDefault(a => a.Name == Song.Album.Name && a.Artist.ArtistID == id);
if (album == null)
{
Album Album = new Album
{
Name = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(Song.Album.Name),
Artist = artist
};
Song.Album = Album;
_context.Album.Add(Album);
}
else
{
Song.Album = album;
}
_textprocessor.PredictText(Song.Lyrics);
Song.Listens = 1;
NaturalLanguage.vector.VectorSpace.ToArray(artist.WordVec);
NaturalLanguage.vector.VectorSpace.ToArray(genre.WordVec);
NaturalLanguage.vector.VectorSpace.Scale(genre_contrib, NaturalLanguage.vector.VectorSpace.ToArray(genre.WordVec));
Song.WordVec = VSpace.ConvertToString(
VSpace.Normalize(VSpace.Add(_textprocessor.PredictText(Song.Lyrics), _textprocessor.PredictText(Song.Name))));
_reader.Read(Path.Combine(Environment.CurrentDirectory, "wwwroot/music",
filename));
double[][] res = AudioAnalysis.Fourier.FFT(_reader.GetStream(), 200, _reader.GetSampleRate());
int[] f = AudioAnalysis.Compare.ToIntArray(res[1]);
Song.FreqVec = AudioAnalysis.Compare.ToString(f);
_context.Song.Add(Song);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task OnGetAsync(int?id)
{
preference_vector = Vspace.Ones(10);
if (HttpContext.User.Identity.IsAuthenticated)
{
int _id = Int32.Parse(HttpContext.User.Claims.Where(c => c.Type == "UserID").Select(c => c.Value).SingleOrDefault());
Playlists = _context.Playlist.Where(p => p.User.UserID == _id).ToList();
_User = _context.User.Find(_id);
preference_vector = Vspace.ToArray(_User.PreferenceVector);
}
if (id != null)
{
Song = await _context.Song.Where(s => s.Album.Artist.ArtistID == id).Include(x => x.Genre).Include(x => x.Album).ThenInclude(x => x.Artist).ToListAsync();
}
else
{
List <Song> songs = _context.Song.Include(x => x.Genre).Include(x => x.Album).ThenInclude(x => x.Artist).ToList();
if (SearchString.Length > 0)
{
SearchString = SearchString.ToLower();
if (!string.IsNullOrEmpty(SearchString))
{
Song s = _context.Song.Where(x => x.Name.ToLower() == SearchString).FirstOrDefault();
if (s != null)
{
int[] f = AudioAnalysis.Compare.ToArray(s.FreqVec);
songs = songs.OrderByDescending(x => AudioAnalysis.Compare.Similarity(f, AudioAnalysis.Compare.ToArray(x.FreqVec)) + .01 * x.Rating / (double)x.Listens).ToList();
foreach (var song in songs)
{
msg += song.Name + ":" + AudioAnalysis.Compare.Similarity(f, AudioAnalysis.Compare.ToArray(song.FreqVec)) + "; ";
}
}
else
{
Artist a = _context.Artist.Where(x => x.Name.ToLower() == SearchString).FirstOrDefault();
if (a != null)
{
songs = _context.Song.Where(s => s.Album.Artist.ArtistID == a.ArtistID).ToList();
songs = songs.OrderByDescending(x => .01 * x.Rating / (double)x.Listens).ToList();
}
else
{
Genre g = _context.Genre.Where(x => x.Name.ToLower() == SearchString).FirstOrDefault();
if (g != null)
{
songs = _context.Song.Where(s => s.Genre.GenreID == g.GenreID).ToList();
songs = songs.OrderByDescending(x => .01 * x.Rating / (double)x.Listens).ToList();
}
else
{
var word_vector = _textprocessor.PredictText(SearchString);
songs.Sort((a, b) =>
(Vspace.Loss(word_vector, Vspace.ToArray(a.WordVec)).CompareTo(Vspace.Loss(word_vector, Vspace.ToArray(b.WordVec)))));
}
}
}
}
}
Song = songs;
}
}
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync()
{
Song s = _context.Song.Where(x => x.SongID == Song.SongID).FirstOrDefault();
User user = _context.User.FirstOrDefault(u => u.Username == User.Identity.Name);
Artist artist = _context.Artist.FirstOrDefault(a => a.ArtistID == user.UserID);
Album a = _context.Album.Where(x => x.Name == Song.Album.Name && x.Artist.ArtistID == user.UserID).FirstOrDefault();
Genre g = _context.Genre.Where(x => x.Name == Song.Genre.Name).FirstOrDefault();
//if (a == null)
//{
// Album Album = new Album
// {
// Name = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(Song.Album.Name),
// Artist = artist
// };
// Song.Album = Album;
// _context.Album.Add(Album);
//}
//else
//{
// Song.Album = a;
//}
//if (g == null)
//{
// g = new Genre
// {
// Name = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(Song.Genre.Name.ToLower()),
// WordVec = Vspace.ConvertToString(_textprocessor.PredictText(Song.Genre.Name))
// };
// _context.Genre.Add(g);
//}
//Song.Genre = g;
//Song.Filepath = ;
Song.WordVec = VSpace.ConvertToString(
VSpace.Normalize(VSpace.Add(_textprocessor.PredictText(Song.Lyrics), _textprocessor.PredictText(Song.Name))));
_context.Song.Update(s);
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!SongExists(Song.SongID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToPage("./Index"));
}