package com.gxw.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import com.gxw.pojo.Admin;
import com.gxw.service.AdminService;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;

/**
 * 后台系统控制器
 * 
 * @author GXWadmin
 */
@RequestMapping("/system")
@Controller
public class SystemController {
	@Autowired
	private AdminService adminService;

	/**
	 * 第一跳转页面
	 * 
	 * @author GXWadmin
	 */
	@RequestMapping(value = "/index", method = RequestMethod.GET)
	public ModelAndView toindex(ModelAndView model) {
		model.setViewName("system/index");
		return model;
	}
	
	/**
	 * 跳转主页页面
	 * @value main 
	 * @author GXWadmin
	 */
	@RequestMapping(value = "/main", method = RequestMethod.GET)
	public ModelAndView tomain(ModelAndView model) {
		model.setViewName("system/main");
		return model;
	}

	/**
	 * 跳转到登录页面
	 * @value login
	 * @author GXWadmin
	 */
	@RequestMapping(value = "/login", method = RequestMethod.GET)
	public ModelAndView tologin(ModelAndView model) {
		model.setViewName("system/login");
		return model;
	}
	
	/**
	 * 注销登录 
	 * @value login_out
	 * @param request
	 * @return
	 */
	@RequestMapping(value = "/login_out",method=RequestMethod.GET)
	public String loginOut(HttpServletRequest request){
//		request.getSession().setAttribute("admin", null);
		request.getSession().invalidate();
		return "redirect:login";
	}

	/**
	 * 登录表单提交
	 * @value login_form
	 * @return
	 */
	@RequestMapping(value = "/login_form", method = RequestMethod.POST)
	@ResponseBody
	public Map<String, String> login(
			@RequestParam(value = "aName", required = true) String aName,
			@RequestParam(value = "aPwd", required = true) String aPwd, 
			HttpServletRequest request) {
		Map<String, String> map = new HashMap<String, String>();
		if(StringUtils.isEmpty(aName)){
			map.put("type", "error");
			map.put("msg", "用户名不能为空!");
			return map;
		}
		if(StringUtils.isEmpty(aPwd)){
			map.put("type", "error");
			map.put("msg", "密码不能为空!");
			return map;
		}
		// 从数据库中去查找用户
		// 管理员
		Admin login = adminService.findByaName(aName);
		if (login == null) {
			map.put("type", "error");
			map.put("msg", "用户名不存在!");
			return map;
		}
		if (!aPwd.equals(login.getaPwd())) {
			map.put("type", "error");
			map.put("msg", "密码不正确!");
			return map;
		}
		request.getSession().setAttribute("admin", login);
		map.put("type", "success");
		map.put("msg", "登录成功!");
		System.out.println("已提交");
		return map;
	}
}