package com.sinocontact.app.controller;

import com.alibaba.fastjson.JSON;
import com.sinocontact.app.common.CommonConstant;
import com.sinocontact.app.dao.ranking.RankingMapper;
import com.sinocontact.app.entity.User;
import com.sinocontact.app.service.ranking.RankingService;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;

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

/**
 * 所有controller的基类
 * @author todd
 * @since 2019/1/22
 */
@Controller  
public class BaseController {

	private static final Logger logger = Logger.getLogger(BaseController.class);
	
	//公用
	private HttpServletRequest request ;
	private HttpServletResponse response;	
	private Model model;
	private HttpSession session;
	
	public HttpServletRequest getRequest() {
		return request;
	}
	public HttpServletResponse getResponse() {
		return response;
	}
	public Model getModel() {
		return model;
	}
	public HttpSession getSession() {
		return session;
	}	

	@ModelAttribute
	public void setModel(HttpServletRequest request,HttpServletResponse response,Model model,HttpSession session){
		this.model = model;
		this.request = request;
		this.response = response;
		this.session = session;
	}

	/**
	 * 得到request中参数
	 * @author todd
	 * @since 2019/1/22
	 */
	public String getParameter(String name){
		return this.getRequest().getParameter(name);
	}

	/**
	 * 添加页面变量属性
	 * @author todd
	 * @since 2019/1/22
	 */
	public void putObject(String name, Object obj){
		model.addAttribute(name, obj);
	}

	/**
	 * 向cookie中写入一条记录
	 * @author todd
	 * @since 2019/1/22
	 */
    public void setCookieValue(String name, String value){
    	try{
    		Cookie cookie = new Cookie(name,value);		
    		cookie.setPath("/");
    		response.addCookie(cookie);
    	}catch(Exception e){
    		logger.error("向cookie中写入name="+name+",value="+value+"出现异常：",e);
    	}
    }

    /**
	 * 设置cookie失效时间
	 * @param expiry 失效时间（秒）
     * @author todd
     * @since 2019/1/22
     */
    public void  setCookieValue(String name, String value, int expiry){
    	try{
    		Cookie cookie = new Cookie(name,value);		
    		cookie.setMaxAge(expiry);
    		cookie.setPath("/");
    		response.addCookie(cookie);
    	}catch(Exception e){
    		logger.error("向cookie中写入name="+name+",value="+value+"出现异常：",e);
    	}
    }

    /**
     * 删除指定的cookie
     * @author todd
     * @since 2019/1/22
     */
    public void deleteCookie(String name){
    	try{
    		Cookie cookie = new Cookie(name,"");		
    		cookie.setMaxAge(0);
    		cookie.setPath("/");
    		response.addCookie(cookie);
    	}catch(Exception e){
    		logger.error("删除cookie"+name+"出现异常：",e);
    	}
    }

    /**
     * 从cookie中获取key为name的值
     * @author todd
     * @since 2019/1/22
     */
    public String getCookieValue(String name){
		String value = null;
		try{
			Cookie[] cookies = request.getCookies();
			if(cookies == null)
				return value;
			
			//遍历方式查找Cookies中是否存在 name
			for(Cookie c : cookies){				
				if(c.getName().equals(name) == true){//在cookies中找到name的cookie
					value = c.getValue();
					break;
				}
			}
		}catch(Exception e){
			value = null;
			logger.error("获取cookie中name="+name+"的数据时出现异常：",e);
		}
		return value;
	}
    
   /**
    * 把javabean转换为json字符串
    * @author todd
    * @since 2019/1/22
    */
    public String renderJSON(Object javaObject){
    	return JSON.toJSON(javaObject).toString();
    }

    /**
     * 获取用户信息
     * @return User
     * @author caoMingYang
     * @since 2019/4/12 15:12
     */
    public User getUserInfo(){
        return (User) getSession().getAttribute(CommonConstant.SESSION_KEY);
    }



    /**
     * 得到ip地址
     * @author todd
     * @since 2019/1/22
     */
	public String getIp() {
		String ip = getRequest().getHeader("x-forwarded-for");
		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
			ip = getRequest().getHeader("Proxy-Client-IP");
		}
		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
			ip = getRequest().getHeader("WL-Proxy-Client-IP");
		}
		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
			ip = getRequest().getRemoteAddr();
		}
		return ip;
	}
}