package org.zhios.website.admin.servlet;

import java.io.IOException;

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

import org.zhios.website.admin.model.JwtUtil;
import org.zhios.website.admin.model.Strings;
import org.zhios.website.admin.model.SysConfig;
import org.zhios.website.admin.model.UserManager;

/**
 * Servlet implementation class LoginCtl
 */
@WebServlet("/LoginCtl")
public class AdminSL extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public AdminSL() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doPost(request,response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		request.setCharacterEncoding("UTF-8");
		
		//check user.
		String username = request.getParameter("username");
        String password = request.getParameter("password");
        UserManager ue=new UserManager();
        String role=ue.UserLogin(username,password);
        if(!role.isEmpty()){
        	HttpSession session=request.getSession(false);
        	session.setAttribute("username", username);
        	session.setAttribute("role", role);
        	String token = JwtUtil.createToken(username);
        	session.setAttribute("token", token);

        	SetSysParameter(request);
            request.getRequestDispatcher("admin.jsp").forward(request,response);
        }else{
        	response.sendRedirect("error?id=err101"); 
        }
	}

	private void SetSysParameter(HttpServletRequest request){
		request.setAttribute("SysName", Strings.SysName);
		request.setAttribute("SysWelcome", Strings.SysWelcome);
		request.setAttribute("MainMenuTitle", Strings.MainMenuTitle);
		request.setAttribute("MMPageSetting", Strings.MMPageSetting);
		request.setAttribute("MMPackageManager", Strings.MMPackageManager);
		request.setAttribute("MMSourceManager", Strings.MMSourceManager);
		request.setAttribute("MMUserManager", Strings.MMUserManager);
		request.setAttribute("MMExit", Strings.MMExit);
		request.setAttribute("HeaderHeight", SysConfig.HeaderHeight);
		request.setAttribute("MainMenuWidth", SysConfig.MainMenuWidth);
	}
}