package com.artfess.portal.util;

import com.artfess.base.util.StringUtil;

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

/**
 * cookie操作类
 * <br>功能：对cookie进行增查改删
 */
public class CookieUitl {
    /**
     * 往客户端写入Cookie。
     * <pre>
     * 说明:
     * maxAge:(单位秒)
     * 0:删除Cookie
     * -1:页面关闭时删除cookie
     * </pre>
     * @param name String
     * @param value String
     * @param maxAge int
     * @param context PageContext
     */
//    public static void addCookie(String name,String value,int maxAge,boolean httpOnly, PageContext context)
//    {
//        HttpServletResponse response=(HttpServletResponse)context.getResponse();
//        HttpServletRequest req=(HttpServletRequest)context.getRequest();
//        addCookie( name, value,maxAge,httpOnly,"","",  req,  response);
//    }
//    
//    /**
//     * 写入会话cookie，在页面关闭的时候这个cookie自动删除。
//     * @param name		cookie名称
//     * @param value		cookie值。
//     * @param context
//     */
//    public static void addCookie(String name,String value,boolean httpOnly,PageContext context)
//    {
//    	HttpServletResponse response=(HttpServletResponse)context.getResponse();
//    	HttpServletRequest req=(HttpServletRequest)context.getRequest();
//    	addCookie( name, value,-1, httpOnly,"","", req,  response);
//    }

    /**
     * 添加cookie，cookie的生命周期为关闭浏览器即消失
     *
     * @param name
     * @param value
     * @param req
     * @param response
     */
    public static void addCookie(String name, String value, boolean httpOnly, HttpServletRequest req, HttpServletResponse response) {
        addCookie(name, value, -1, httpOnly, "", req.getContextPath(), req, response);
    }

    /**
     * 添加cookie
     *
     * @param name     cookie名称
     * @param value    cookie值
     * @param maxAge   cookie存活时间
     * @param req
     * @param response
     */
    public static void addCookie(String name, String value, int maxAge, boolean httpOnly, String domain, String path, HttpServletRequest req, HttpServletResponse response) {

        if (response == null) return;
        StringBuilder sb = new StringBuilder();
        sb.append(name);
        sb.append('=');
        sb.append(value.trim() + "; ");

        if (maxAge != -1) {
            sb.append("max-age=");
            sb.append(maxAge + "; ");
        }

        //--domain字符串
        if (StringUtil.isNotEmpty(domain)) {
            sb.append("domain=");
            sb.append(domain + "; ");
        }
        //--构造path字符串
        if (StringUtil.isNotEmpty(path)) {
            sb.append("path=");
            sb.append(path + ";");
        }

        //--构造httponly属性
        if (httpOnly) {
            sb.append("HttpOnly");
        }
        response.addHeader("Set-Cookie", sb.toString());
    }

//    /**
//     * 删除cookie
//     * @param name
//     * @param context
//     */
//    public static void delCookie(String name,PageContext context)
//    {
//    	HttpServletResponse response=(HttpServletResponse)context.getResponse();
//    	HttpServletRequest request=(HttpServletRequest)context.getRequest();
//    	delCookie(name,request, response);
//    }

    /**
     * 删除cookie
     *
     * @param name
     * @param response
     */
    public static void delCookie(String name, HttpServletRequest request, HttpServletResponse response) {
        addCookie(name, "", 0, true, "", request.getContextPath(), request, response);
    }

    /**
     * 根据Cookie名取得Cookie的值.
     * 如果cookie 为空 则返回 null;
     * @param name String
     * @param context PageContext
     * @return String
     */
//    public static String getValueByName(String name,PageContext context)
//    {
//        HttpServletRequest request=(HttpServletRequest)context.getRequest();
//        String str= getValueByName(name,request);
//        return str;
//    }

    /**
     * 根据cookie名称取得值
     *
     * @param name
     * @param request
     * @return
     */
    public static String getValueByName(String name, HttpServletRequest request) {
        if (request == null) return "";
        Cookie cookies[] = request.getCookies();
        Cookie sCookie = null;
        String svalue = null;
        String sname = null;

        if (cookies == null)
            return null;
        for (int i = 0; i < cookies.length; i++) {
            sCookie = cookies[i];
            sname = sCookie.getName();
            if (sname.equals(name)) {
                svalue = sCookie.getValue();
                break;
            }
        }
        return svalue;
    }

    /**
     * 根据Cookie名判断Cookie是否存在.
     * @param name String
     * @param context PageContext
     * @return String
     */
//    public static boolean isExistByName(String name,PageContext context)
//    {
//        HttpServletRequest request=(HttpServletRequest)context.getRequest();
//        return isExistByName(name,request);
//    }

    /**
     * @param name
     * @param request
     * @return
     */
    public static boolean isExistByName(String name, HttpServletRequest request) {

        Cookie cookies[] = request.getCookies();
        Cookie sCookie = null;

        String sname = null;
        boolean isExist = false;
        if (cookies == null)
            return false;
        for (int i = 0; i < cookies.length; i++) {
            sCookie = cookies[i];
            sname = sCookie.getName();
            if (sname.equals(name)) {
                isExist = true;
                break;
            }
        }
        return isExist;
    }

}