private void picRecommend_Click(object sender, EventArgs e)
{
SongModel songModel = new SongModel();
List<Song> songList = songModel.getAllSongs();
List<Song> songsInPlaylist = thePlaylist.getSongs();
// get all artists
List<String> artists = new List<String>();
for (int i = 0; i < thePlaylist.getSongs().Count; i++)
{
String artist = thePlaylist.getSongs()[i].getArtist();
if (!artists.Contains(artist))
{
artists.Add(thePlaylist.getSongs()[i].getArtist());
}
}
List<Song> suitableSongs = songList.Where(song => artists.Contains(song.getArtist())).ToList();
// get all genres
List<String> genres = new List<String>();
for (int i = 0; i < thePlaylist.getSongs().Count; i++)
{
if (!genres.Contains(thePlaylist.getSongs()[i].getGenre()))
{
genres.Add(thePlaylist.getSongs()[i].getGenre());
}
}
List<Song> matchingGenres = songList.Where(song => genres.Contains(song.getGenre())).ToList();
for (int i = 0; i < matchingGenres.Count; i++)
{
suitableSongs.Add(matchingGenres[i]);
}
// Remove songs that already exist in playlist
for (int j = 0; j < suitableSongs.Count; j++)
{
for (int i = 0; i < songsInPlaylist.Count; i++)
{
if (suitableSongs[j].getSongID().Equals(songsInPlaylist[i].getSongID()))
{
suitableSongs.RemoveAt(j);
if (j > 0)
{
j--;
}
else
{
j = -1;
}
break;
}
}
}
// GET SONGS
List<Song> selectedSongs = new List<Song>();
while (selectedSongs.Count < 5 && suitableSongs.Count > 0)
{
Random r = new Random();
bool add = true;
int index = r.Next(0, suitableSongs.Count-1);
for (int i = 0; i < selectedSongs.Count; i++)
{
if (selectedSongs[i].getSongID().Equals(suitableSongs[index].getSongID()))
{
add = false;
suitableSongs.RemoveAt(index);
break;
}
}
if (add)
{
selectedSongs.Add(suitableSongs[index]);
suitableSongs.RemoveAt(index);
}
}
Recommendations recommendations = new Recommendations(this);
recommendations.setSongs(selectedSongs, thePlaylist);
recommendations.createAlbums();
recommendations.ShowDialog();
}
