public IActionResult CreateLending(int clientId, int libraryId, LendingForCreateDto lending)
{
if (!_repo.ClientExists(clientId) || !_repo.BookExists(lending.BookId))
{
return(NotFound());
}
var bookId = lending.BookId;
var library = _repo.GetLibrary(libraryId);
if (library != null && lending.ReturnDate == null)
{
var bookCopies = _repo.GetBookCopiesForLibrary(libraryId).SingleOrDefault(b => b.BookId == bookId);
if (bookCopies == null || bookCopies.NumberOfCopies < 1)
{
return(NotFound());
}
bookCopies.NumberOfCopies--;
_repo.UpdateBookCopies(bookCopies);
}
if (lending.WitdrawDate == null)
{
lending.WitdrawDate = DateTime.Now;
}
var lendingEntity = _mapper.Map <Lending>(lending);
if (lending.ReturnDate == null)
{
lendingEntity.ReturnDate = null;
}
_repo.CreateLending(clientId, lendingEntity);
_repo.Save();
var lendingForReturn = _mapper.Map <LendingForReturnDto>(lendingEntity);
return(CreatedAtRoute("GetLending", new { clientId, id = lendingForReturn.Id }, lendingForReturn));
}