public async Task <IBook> AddBookAsync(IStorageFile file)
{
if (file == null)
{
throw new ArgumentNullException(nameof(file));
}
var document = await DjvuDocument.LoadAsync(file);
var bookDto = new EfBookDto
{
PageCount = document.PageCount,
Title = Path.GetFileNameWithoutExtension(file.Name),
LastOpeningTime = DateTime.Now
};
_context.Books.Add(bookDto);
await _context.SaveChangesAsync();
var booksFolder = await ApplicationData.Current.LocalFolder.CreateFolderAsync("Books", CreationCollisionOption.OpenIfExists);
var bookFile = await file.CopyAsync(booksFolder, $"{bookDto.Id}.djvu", NameCollisionOption.ReplaceExisting);
bookDto.BookPath = bookFile.Path;
await _context.SaveChangesAsync();
var book = new EfBook(bookDto, _context, _books);
await book.UpdateThumbnailAsync();
_books.Add(book);
return(book);
}
public EfBook(EfBookDto efBookDto, EfBooksContext context, ObservableCollection <IBook> books)
{
_efBookDto = efBookDto;
_context = context;
_books = books;
var bookmarks = _efBookDto.Bookmarks.Select(bookmarkDto => new EfBookmark(bookmarkDto, _context));
_bookmarks = new ObservableCollection <IBookmark>(bookmarks);
Bookmarks = new ReadOnlyObservableCollection <IBookmark>(_bookmarks);
}
