package hbu.david.cmc.servlet;

import hbu.david.cmc.bean.*;
import hbu.david.cmc.work.*;
import hbu.david.cmc.util.*;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class for Servlet: ChangePasswordServlet
 * 
 */
public class ChangePasswordServlet extends hbu.david.cmc.http.MyHttpServlet
		implements javax.servlet.Servlet {

	static final long serialVersionUID = 1L;

	/*
	 * (non-Java-doc)
	 * 
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public ChangePasswordServlet() {
		super();
	}

	@Override
	public void doExecute(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException {
		// TODO Auto-generated method stub
		String oncePassword=request.getParameter("oncePassword");
		String password=request.getParameter("password");
		String rePassword=request.getParameter("rePassword");
		String username=((UserInfo)request.getSession().getAttribute("userInfo")).getUsername();
		int userId=((UserInfo)request.getSession().getAttribute("userInfo")).getId();
		if(UserBean.isRightUsernamePassword(username, oncePassword)){
			//用戶輸入的密碼正確
			if(UserBean.updatePassword(userId,password)){
				//修改成功
				request.getRequestDispatcher("GotoChangePasswordServlet").forward(request, response);
			}else{
				//修改失敗
				request.setAttribute("errorMessage", "修改失敗！");
				request.setAttribute("returnUrl", "changePassword.jsp");
				request.getRequestDispatcher("error.jsp").forward(request, response);
			}
		}else{
			//用戶輸入的密碼錯誤
			request.setAttribute("errorMessage", "您的原始密碼不正確，請重新輸入！");
			request.setAttribute("returnUrl", "changePassword.jsp");
			request.getRequestDispatcher("error.jsp").forward(request, response);
		}	
	}

}