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

/**
 * Servlet implementation class UserManagerSL
 */
@WebServlet("/UserManagerSL")
public class UserManagerSL extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public UserManagerSL() {
        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
	}

	/**
	 * @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.
		if(!UserManager.checkUser(request.getSession(false))){
			response.sendRedirect("error?id=err104");
			return;
		}
		
		UserManager um=new UserManager();
		
		String eventname=request.getParameter("eventname");
		if(eventname.equals("userlist")){
			String role=request.getParameter("role");
			
			String result=um.ReadUserList(role);
			request.setAttribute("UserList", result);
			
			SetUserManagerParam(request);
			request.getRequestDispatcher("usermanager.jsp").forward(request,response);
		}
		else if(eventname.equals("adduser")){
			String username=request.getParameter("username");
			String password=request.getParameter("password");
			String role=request.getParameter("role");
			
			um.AddUser(username, password, role);
			
			String result=um.ReadUserList(role);
			request.setAttribute("UserList", result);

			SetUserManagerParam(request);
			request.getRequestDispatcher("usermanager.jsp").forward(request,response);
		}
		else if(eventname.equals("deleteuser")){
			String username=request.getParameter("username");
			String role=request.getParameter("role");
			
			um.DeleteUser(username, role);
			
			String result=um.ReadUserList(role);
			request.setAttribute("UserList", result);

			SetUserManagerParam(request);
			request.getRequestDispatcher("usermanager.jsp").forward(request,response);
		}
		else if(eventname.equals("changepw")){
			String role=request.getParameter("role");
			String username=request.getParameter("username");
			String password=request.getParameter("password");
			
			um.UpdatePW(role,username,password);
			
			String result=um.ReadUserList(role);
			request.setAttribute("UserList", result);

			SetUserManagerParam(request);
			request.getRequestDispatcher("usermanager.jsp").forward(request,response);
			
		}
	}
	
	private void SetUserManagerParam(HttpServletRequest request){
		request.setAttribute("title", Strings.UMTitle);
		request.setAttribute("adduser", Strings.UMaddUser);
		request.setAttribute("deleteuser", Strings.UMdeleteUser);
		request.setAttribute("deleteuserconf", Strings.UMdeleteUserConfirm);
		request.setAttribute("setpw", Strings.UMsetPW);
		request.setAttribute("username",Strings.UMUsername);
		request.setAttribute("password",Strings.UMPassword);
		request.setAttribute("passwordconf",Strings.UMPasswordConfirm);
		request.setAttribute("failconf",Strings.FailConfirm);
	}
	
}