public async Task AddBookmarkAsync(string title, uint pageNumber)
{
if (string.IsNullOrWhiteSpace(title))
{
throw new ArgumentException("title is empty", nameof(title));
}
if (pageNumber < 1 || pageNumber > PageCount)
{
throw new ArgumentOutOfRangeException(nameof(pageNumber));
}
var bookmarkDto = new EfBookmarkDto
{
Title = title,
PageNumber = pageNumber,
EfBookDto = _efBookDto
};
_context.Bookmarks.Add(bookmarkDto);
await SaveChangesAsync();
var bookmark = new EfBookmark(bookmarkDto, _context);
_bookmarks.Add(bookmark);
}
public EfBookmark(EfBookmarkDto efBookmarkDto, EfBooksContext context)
{
_efBookmarkDto = efBookmarkDto;
_context = context;
}