package com.lovo.servlet;

import java.io.IOException;
import java.util.List;

import javax.servlet.RequestDispatcher;
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.lovo.factory.BOFactory;
import com.lovo.po.UserPO;
import com.lovo.util.Page;

public class UserMagDO extends HttpServlet {
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		this.doPost(request, response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		response.setCharacterEncoding("utf-8");
		HttpSession session = request.getSession(true);
		
		String currPageStr = request.getParameter("page");
		
		int currPage = 1;
		try {
			currPage = Integer.parseInt(currPageStr);
		} catch (NumberFormatException e) {
			currPage = 1;
		}
		
		if(currPage <= 0) {
			currPage = 1;
		}
		
		int maxRows = BOFactory.getUserBOInstance().queryRegUserNum();
		
		Page userPage = new Page();
		userPage.setCurrPage(currPage);
		userPage.setMaxRows(maxRows);
		
		int maxPages = maxRows % userPage.getPageRows() == 0 ? maxRows / userPage.getPageRows() : maxRows / userPage.getPageRows() + 1;
		if(maxPages == 0) {
			maxPages = 1;
		}
		if(currPage >= maxPages) {
			currPage = maxPages;
			userPage.setCurrPage(currPage);
		}
		
		List<UserPO> list = BOFactory.getUserBOInstance().queryUsers(userPage);
		
		session.setAttribute("allUserList", list);
		session.setAttribute("userPage", userPage);
		response.sendRedirect("../web/admin/userMag.jsp?maxPages="+maxPages);
	}
}