| | | 1 | | using BookstoreAPI.Models; |
| | | 2 | | using System.Collections.Generic; |
| | | 3 | | using System.Linq; |
| | | 4 | | |
| | | 5 | | namespace BookstoreAPI.Repositories |
| | | 6 | | { |
| | | 7 | | public class BookNotFoundException : System.Exception |
| | | 8 | | { |
| | 6 | 9 | | public BookNotFoundException(string message) : base(message) { } |
| | | 10 | | } |
| | | 11 | | public class BookRepository : IBookRepository |
| | | 12 | | { |
| | | 13 | | private readonly BookDbContext bookDbContext; |
| | | 14 | | public BookRepository(BookDbContext bookDbContext) |
| | | 15 | | { |
| | | 16 | | this.bookDbContext = bookDbContext; |
| | | 17 | | } |
| | | 18 | | |
| | | 19 | | public IEnumerable<Book> GetAllBooks() => bookDbContext.Books; |
| | | 20 | | |
| | | 21 | | public Book? GetBookById(int id) => bookDbContext.Books.Find(b => b.Id == id); |
| | | 22 | | |
| | | 23 | | public void AddBook(Book book) |
| | | 24 | | { |
| | | 25 | | book.Id = bookDbContext.Books.Count + 1; |
| | | 26 | | bookDbContext.Books.Add(book); |
| | | 27 | | } |
| | | 28 | | |
| | | 29 | | public void UpdateBook(Book book) |
| | | 30 | | { |
| | | 31 | | var existingBook = GetBookById(book.Id); |
| | | 32 | | if (existingBook != null) |
| | | 33 | | { |
| | | 34 | | existingBook.Title = book.Title; |
| | | 35 | | existingBook.Author = book.Author; |
| | | 36 | | existingBook.ISBN = book.ISBN; |
| | | 37 | | existingBook.Description = book.Description; |
| | | 38 | | } |
| | | 39 | | else throw new BookNotFoundException($"Book with id {book.Id} not found"); |
| | | 40 | | } |
| | | 41 | | |
| | | 42 | | public void DeleteBook(int id) |
| | | 43 | | { |
| | | 44 | | var book = GetBookById(id); |
| | | 45 | | if (book != null) |
| | | 46 | | { |
| | | 47 | | bookDbContext.Books.Remove(book); |
| | | 48 | | } |
| | | 49 | | else throw new BookNotFoundException($"Book with id {id} not found"); |
| | | 50 | | } |
| | | 51 | | } |
| | | 52 | | } |