// Playlists <-> Song Mutations
public async Task <UpdatePlaylistPayload> AddSongToPlaylistAsync
(int playlistId, AddSongInput songInput, [Service] IPlaylistService playlistService)
{
var success = await playlistService.AddSongAsync(playlistId, songInput);
return(new UpdatePlaylistPayload(success));
}
// Song Mutations
public async Task <AddSongPayload> AddSongAsync
(
AddSongInput input, [Service] ISongService songService
)
{
var song = _mapper.Map <AddSongInput, Song>(input);
await songService.CreateAsync(song);
return(new AddSongPayload(song));
}
public async Task <bool> AddSongAsync(int playlistId, AddSongInput songInput)
{
var playlist = await GetByIdAsync(playlistId);
// no playlist with given id
if (playlist is null)
{
return(false);
}
var songInPlaylist =
(
from song in playlist.Songs
where song.Name == songInput.Name &&
song.Artist == songInput.Artist &&
song.Type == songInput.Type
select song
).ToList();
// song already in playlist
if (songInPlaylist.Count > 0)
{
return(false);
}
var existingSong =
(
from song in Context.Songs
where song.Name == songInput.Name &&
song.Artist == songInput.Artist &&
song.Type == songInput.Type
select song
).ToList();
// song already in database
if (existingSong.Count > 0)
{
playlist.Songs.Add(existingSong[0]);
return(await Context.SaveChangesAsync() > 0);
}
// song not in database
var newSong = _mapper.Map <AddSongInput, Song>(songInput);
await Context.AddAsync(newSong);
playlist.Songs.Add(newSong);
return(await Context.SaveChangesAsync() > 0);
}
public async Task <AddSongPayload> AddSongAsync(
AddSongInput input,
[ScopedService] DatabaseContext context,
[Service] IAuthorization authorization,
[Service] IFileStorage fileStorage,
CancellationToken cancellationToken)
{
var song = new Song
{
Name = input.Name,
Artist = input.Artist
};
var songEntity = await context.Songs.AddAsync(song, cancellationToken);
if (input.SongJacket != null)
{
var uploadTasks = new List <Task <string> >();
try
{
int[] imageSizes = { 32, 64, 128, 256, 512 };
using var ingredientImage = await Image.LoadAsync(input.SongJacket !.OpenReadStream());
foreach (var size in imageSizes)
{
var image = await Images.ImageToPngMemoryStream(ingredientImage, size, size);
var destinationKey = $"songs/{songEntity.Entity.Id}.{size}.png";
uploadTasks.Add(fileStorage.UploadFileFromStream(image, destinationKey));
}
}
catch
{
return(new AddSongPayload(
new []
{
new UserError("Failed to upload song jacket.", CommonErrorCodes.IMAGE_UPLOAD_FAILED)
}
));
}
var t = Task.WhenAll(uploadTasks);
try
{
t.Wait(cancellationToken);
}
catch
{
return(new AddSongPayload(
new []
{
new UserError("Failed to upload song jacket.", CommonErrorCodes.IMAGE_UPLOAD_FAILED)
}
));
}
}
await context.SaveChangesAsync(cancellationToken);
return(new AddSongPayload(songEntity.Entity));
}
