package com.ibatis.jpetstore.presentation;
import java.util.Iterator;
import java.util.Map;
import org.apache.struts.beanaction.ActionContext;
import com.ibatis.jpetstore.domain.Cart;
import com.ibatis.jpetstore.domain.CartItem;
import com.ibatis.jpetstore.domain.Item;
import com.ibatis.jpetstore.service.CatalogService;
public class CartBean extends AbstractBean {
private CatalogService catalogService;
private Cart cart = new Cart();
private String workingItemId;
private String pageDirection;
public CartBean() {
this(new CatalogService());
}
public CartBean(CatalogService catalogService) {
this.catalogService = catalogService;
}
public Cart getCart() {
return cart;
}
public void setCart(Cart cart) {
this.cart = cart;
}
public String getWorkingItemId() {
return workingItemId;
}
public void setWorkingItemId(String workingItemId) {
this.workingItemId = workingItemId;
}
public String getPageDirection() {
return pageDirection;
}
public void setPageDirection(String pageDirection) {
this.pageDirection = pageDirection;
}
public String addItemToCart() {
if (cart.containsItemId(workingItemId)) {
cart.incrementQuantityByItemId(workingItemId);
} else {
// isInStock is a "real-time" property that must be updated
// every time an item is added to the cart, even if other
// item details are cached.
boolean isInStock = catalogService.isItemInStock(workingItemId);
Item item = catalogService.getItem(workingItemId);
cart.addItem(item, isInStock);
}
return SUCCESS;
}
public String removeItemFromCart() {
Item item = cart.removeItemById(workingItemId);
if (item == null) {
setMessage("Attempted to remove null CartItem from Cart.");
return FAILURE;
} else {
return SUCCESS;
}
}
public String updateCartQuantities() {
Map parameterMap = ActionContext.getActionContext().getParameterMap();
Iterator cartItems = getCart().getAllCartItems();
while (cartItems.hasNext()) {
CartItem cartItem = (CartItem) cartItems.next();
String itemId = cartItem.getItem().getItemId();
try {
int quantity = Integer.parseInt((String) parameterMap.get(itemId));
getCart().setQuantityByItemId(itemId, quantity);
if (quantity < 1) {
cartItems.remove();
}
} catch (Exception e) {
// ignore parse exceptions on purpose
}
}
return SUCCESS;
}
public String switchCartPage() {
if ("next".equals(pageDirection)) {
cart.getCartItemList().nextPage();
} else if ("previous".equals(pageDirection)) {
cart.getCartItemList().previousPage();
}
return SUCCESS;
}
public String viewCart() {
return SUCCESS;
}
public void clear() {
cart = new Cart();
workingItemId = null;
pageDirection = null;
}
}