package com.briup.web.servlet;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

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

import com.briup.bean.Customer;
import com.briup.bean.Orderform;
import com.briup.bean.Orderline;
import com.briup.bean.ShoppingCart;
import com.briup.common.BeanFactory;
import com.briup.common.exception.CustomerServiceException;
import com.briup.common.exception.OrderServiceException;
import com.briup.service.ICustomerService;
import com.briup.service.IOrderService;

public class ConfirmServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ConfirmServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		process(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		process(request,response);
	}
	
	private void process(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException{
		response.setContentType("text/html");
		
		String zip = request.getParameter("zip");
		String address = request.getParameter("address");
		String telephone = request.getParameter("telephone");
		String email = request.getParameter("email");
		
		HttpSession session = request.getSession();
		ShoppingCart cart = (ShoppingCart)session.getAttribute("cart");
		Customer customer = (Customer)session.getAttribute("customer");
		customer.setZip(zip);
		customer.setAddress(address);
		customer.setTelephone(telephone);
		customer.setEmail(email);
		
		double cost = cart.getCost();
		
		Orderform order = new Orderform();
		order.setCost(cost);
		order.setCustomer(customer);
		order.setOrderdate(new java.util.Date());
	
		Collection<Orderline> c = cart.getOrderlines();
		for(Orderline orderline : c){
			orderline.setOrderform(order);
			order.getOrderlines().add(orderline);
		}
		
		ICustomerService customerService = 
			(ICustomerService)BeanFactory.getBean(BeanFactory.CUSTOMERSERVICE);
		IOrderService orderService = 
			(IOrderService)BeanFactory.getBean(BeanFactory.ORDERSERVICE);
		try {
			//更新用戶信息
			customerService.update(customer);
			//保存訂單
			orderService.saveOrder(order);
			request.setAttribute("message", "提交訂單成功");
			request.setAttribute("order", order);
			cart.removeAll();
			getServletContext().getRequestDispatcher
				("/confirm.jsp").forward(request, response);
		}catch (CustomerServiceException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			request.setAttribute("message", e.getMessage());
			getServletContext().getRequestDispatcher
				("/order.jsp").forward(request, response);
		}catch (OrderServiceException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			request.setAttribute("message", e.getMessage());
			getServletContext().getRequestDispatcher
				("/order.jsp").forward(request, response);
		}

	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}