package com.basic.x01.base;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;

import com.basic.x01.system.model.TSysUser;
import com.basic.x01.systemMenu.MenuFilter;
import com.basic.x01.systemMenu.MenuItem;
import com.basic.x01.systemMenu.MenuUtil;

import framework.base.FrameBaseController;

/**
 * 全部控制器的基类，提供控制器的工具
 * 
 * @company 北京贝思科技术有限公司
 * @author liuyajun, 8384503@qq.com
 * @date 2016年1月13日
 * @time 上午8:32:35
 */

@Controller
public class BaseController extends FrameBaseController {
	public final static String SESSION_LOGINED_USER_KEY = "SESSION_LOGINED_USER_KEY";
	
	public TSysUser getLoingedUser(){
		return (TSysUser)this.getRequest().getSession().getAttribute(SESSION_LOGINED_USER_KEY);
	}
	
	public static TSysUser getLoingedUser(HttpServletRequest req){
		return (TSysUser)req.getSession().getAttribute(SESSION_LOGINED_USER_KEY);
	}

	public String getCurrentActionId(){
		return (String)this.getRequest().getAttribute("currentRequestActionId");
	}
    /**
     * 检查权限
     * @param actions 英文逗号分隔的actionId串
     * @return true 有权限
     */
    public boolean checkAccess(String actions){
    	boolean check = checkAccess(this.getRequest(), actions);
    	this.getRequest().setAttribute(actions, check?"y":"n");
    	return check;
    }
    /**
     * 检查权限
     * @param req
     * @param actions 英文逗号分隔的actionId串
     * @return true 有权限
     */
    public static boolean checkAccess(HttpServletRequest req, String actions) {
    	if(req ==null || actions==null || actions.trim().length() ==0){
    		return false;
    	}

    	TSysUser user = BaseController.getLoingedUser(req);
		if(user==null){
			return false;
		}
		
		//如果正常进来，这里一定有actionList
		@SuppressWarnings("unchecked")
		List<String> actionList = (List<String>)req.getAttribute(
				MenuFilter.FRAME_REQUEST_ACTION_LIST);
		
		if(actionList==null || actionList.size()==0){
			return false;
		}
		
		String[] actionArray = actions.trim().replace(" ", "")
					.split(",");
		
		for(String actionId : actionArray){
			if(actionId==null || actionId.trim().length()==0){
				continue;
			}
			
			MenuItem menu = MenuUtil.getMenuItemByActionId(actionId);
			if(menu==null){
				continue;
			}
			
			if(MenuFilter.checkActionTree(actionList, menu)){
				return true;
			}
		}
		
		return false;
    }

}