public BorrowBookResponse BorrowBook(BorrowBookRequest request)
{
request.Validate();
using (var connection = _DbConnectionProvider.SafelyInvoke(_logger))
{
var book = connection.GetBookById(request.BookId);
if (book == null)
{
throw BookstoreException.BookNotFound;
}
if (book.Status.Equals("Unvailable"))
{
throw BookstoreException.BookIsUnvailable;
}
if (book.Status.Equals("Borrowed"))
{
throw BookstoreException.BookIsBorrowed;
}
var newStatus = "Borrowed";
connection.UpdateBookStatus(request.BookId, newStatus);
var newBook = connection.GetBookById(request.BookId);
var updatedBooksDetails = newBook.ToDetailsModel();
return(new BorrowBookResponse
{
BookDetails = updatedBooksDetails
});
}
}
internal static void Validate(this BorrowBookRequest request)
{
if (request == null)
{
throw BookstoreException.InvalidJsonData;
}
if (!Guid.TryParse(request.BookId, out Guid bookIdAsGuid))
{
throw BookstoreException.InvalidBookId;
}
}
