package com.kettas.action;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.MappingDispatchAction;

import com.kettas.biz.OrderBiz;
import com.kettas.entity.Order;
import com.kettas.entity.Shoppingcart;
import com.kettas.entity.User;
import com.kettas.exception.BizException;

/*
 * Title:订单操作相关Action
 * Author:SecondGroup
 * Time:2010.1.14
 * Version:1.0.0
 */
public class OrderAction extends MappingDispatchAction{
	private OrderBiz obiz;
	
	public OrderBiz getObiz() {
		return obiz;
	}

	public void setObiz(OrderBiz obiz) {
		this.obiz = obiz;
	}


	/*
	 * 生成订单Action
	 */
	public ActionForward generateOrder(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response){
		HttpSession session=request.getSession(true);
		
		/*
		 * 从session作用域内得到登陆用户对象
		 */
		User user=(User) session.getAttribute("login");
		
		/*
		 * 从session作用域内得到购物项集合
		 */
		Shoppingcart cart=(Shoppingcart) session.getAttribute("cart");
		
		Order order=new Order();
		order.setItems(cart.getItems());
		order.setStatus(0);//此时是给用户预览订单，等用户确定订单之后才把订单状态改为1
		order.setUser(user);
		order.setCost(cart.getTotalCost());
		
		List<Order> orders=new ArrayList<Order>();
		Order userOrder=new Order();
		try {
			//将订单存入DB
			obiz.addOrder(order);
			
			//再根据status查询订单，目的查出全部未付款的订单
			orders=obiz.getOrdersByStatus(0);
			
			//遍历该集合查找出属于本user的未付款状态的订单
			for(Order o:orders){
				//从数据库中取出来的id是String类型的，所以不能用==比较
				if(o.getUser().getId().equals(user.getId())){
					//将此订单返回显示
					userOrder=o;
				}
			}
		} catch (Exception e) {
			throw new BizException(e);
		}
		request.setAttribute("order", userOrder);
		return mapping.findForward("printorder");
	}
	
	
	/*
	 * 结账Action
	 */
	public ActionForward checkout(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response){
		String orderIdStr=request.getParameter("orderId");
		Integer orderId=Integer.parseInt(orderIdStr);
		String costStr=request.getParameter("cost");
		double cost=Double.parseDouble(costStr);
		
		Order order=new Order();
		
		try {
			order=obiz.getOrderById(orderId);
			int status=1;//此时才将订单状态改为1，即已付款
			order.setStatus(status);
			
			//修改数据库中的订单状态
			obiz.modifyOrder(order);
		} catch (Exception e) {
			throw new BizException(e);
		}
		
		request.setAttribute("order", order);
		request.setAttribute("cost", cost);
		
		//结账之后清空session中的cart
		HttpSession session=request.getSession(true);
		Shoppingcart cart=(Shoppingcart) session.getAttribute("cart");
		request.setAttribute("cart", cart);
		
		session.removeAttribute("cart");
		return mapping.findForward("checkout");	
	}
	
	/*
	 * 获得全部订单Action
	 */
	public ActionForward getAllOrders(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response){
		HttpSession session=request.getSession(true);
		User user=(User) session.getAttribute("login");
		System.out.println("========================"+user.getName()+user.getId()+"==================================");
		List<Order> orders=new ArrayList<Order>();
		List<Order> iwantorders=new ArrayList<Order>();
		int ordersNum=0;
		double ordersCost=0;
		
		System.out.println("========================FuckingData==================================");
		try {
			orders=obiz.getAllOrders();
		} catch (Exception e) {
			throw new BizException(e);
		}
		
		for(Order o:orders){
			System.out.println("=========================="+o.getUser().getName()+"===============================");
			if(o.getUser().getName().equals(user.getName())){
				iwantorders.add(o);
				ordersNum++;
				ordersCost+=o.getCost();
			}
		}
		request.setAttribute("orders", iwantorders);
		request.setAttribute("ordersNum", ordersNum);
		request.setAttribute("ordersCost", ordersCost);
		return mapping.findForward("manageorder");
	}
}