public Domain.DataTransfer.BoughtSong BuySong(int songId, int userId, decimal discountForBuyAllAlbum = 0)
{
if (songId <= 0 || userId <= 0)
{
throw new ArgumentException("userId is less then 1 or songId is less then 1 in musicStoreService in BuySong", "userId or songId");
}
User user = _userRepository.GetItem(userId);
if (user == null)
{
throw new Exception("User is null");
}
Song song = _songRepository.GetItem(songId);
if (song == null)
{
throw new Exception("Song is null");
}
if (user.Money < song.Price)
{
throw new Exception($"User has not enough money for buy {song.Name} song");
}
decimal songBoughtPrice = 0;
songBoughtPrice = discountForBuyAllAlbum > 0 ? song.Price - (song.Price * (discountForBuyAllAlbum / 100)) : song.Price;
BoughtSong boughtSong = new BoughtSong()
{
BoughtPrice = songBoughtPrice,
IsVisible = true,
BoughtDate = DateTime.Now,
Song = song,
User = user
};
user.Money -= songBoughtPrice;
_boughtSongRepository.Create(boughtSong);
_userRepository.Update(user);
var result = _mapBoughtSong.AutoMap(boughtSong);
return(result);
}
public IList <Domain.DataTransfer.Song> GetSongsListFromAlbumAvailableForBuyByUser(int albumId, int userId)
{
if (albumId <= 0)
{
throw new ArgumentException($"{nameof(albumId)} is less then 1 in musicStoreDisplayService GetSongsListAvailableForBuyByUser", nameof(albumId));
}
if (userId <= 0)
{
throw new ArgumentException($"{nameof(userId)} is less then 1 in musicStoreDisplayService GetSongsListAvailableForBuyByUser", nameof(userId));
}
var user = _userRepository.GetItem(userId);
if (user == null || user.BoughtSongs == null)
{
throw new Exception("user is null or user.BoughtSongs is null");
}
var album = _albumRepository.GetItem(albumId);
if (album == null || album.Songs == null)
{
throw new Exception("album is null or album.Songs is null");
}
var domainSongsList = new List <Domain.DataTransfer.Song>();
foreach (var albumSong in album.Songs)
{
var coincidence = user.BoughtSongs.Any(x => x.Song.Id == albumSong.Id);
if (!coincidence)
{
domainSongsList.Add(_mapSong.AutoMap(albumSong));
}
}
return(domainSongsList);
}
public Domain.DataTransfer.UserAccount GetUserData(string identityId)
{
if (string.IsNullOrEmpty(identityId))
{
throw new ArgumentException("User id is not valid", "userId");
}
var resultOfParse = Guid.TryParse(identityId, out var guidIdentityId);
if (resultOfParse == false)
{
throw new ArgumentException("Can not parse string to guid", "identityId");
}
var result = GetItemWithGuidId(guidIdentityId);
if (result == null)
{
throw new Exception("User not found");
}
return(_mapUser.AutoMap(result));
}