package my.app.crud.presentation;

import javax.annotation.PostConstruct;
import javax.ejb.EJB;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
import javax.faces.model.ManagedBean;
import javax.faces.model.SessionScoped;


import my.app.crud.business.BookServiceBean;
import my.app.crud.model.Book;

@ManagedBean(name = "BookBean")
@SessionScoped
public class BookManagedBean {

	private final static String LIST_BOOKS = "listBooks.xhtml";
	private final static String EDIT_BOOK = "editBook.xhtml";
		
	@EJB
	private BookServiceBean bookService;
	private DataModel<Book> books;
	private Book currentBook;
	
	@PostConstruct
	public void init() {	
		reload();		
	}
	
	public DataModel<Book> getBooks() {
		return books;
	}
	
	public void reload() {
		books = new ListDataModel<Book>();    
		books.setWrappedData(bookService.getAllBooks());
	}
	
	public String create() {
		currentBook = bookService.create();
		return EDIT_BOOK;
	}
	
	public String delete() {
		Book book = books.getRowData();
		bookService.delete(book);
		reload();
		return LIST_BOOKS;
	}
	
	public String edit() {
		currentBook = books.getRowData();
		reload();
		return EDIT_BOOK;
	}
	
	public String save() {
		bookService.update(currentBook);
		reload();
		return LIST_BOOKS;
	}

	public String cancel() {
		reload();
		return LIST_BOOKS;
	}
	
	public Book getCurrentBook() {
		return currentBook;
	}

	public void setCurrentBook(Book currentBook) {
		this.currentBook = currentBook;
	}
}