package org.litesoft.servlets;

import javax.servlet.http.*;

public class Cookies
{
    private static final int SECS_PER_DAY = 60 * 60 * 24;

    public static Cookie getRawCookie( HttpServletRequest pRequest, String pName )
    {
        Cookie[] zCookies = pRequest.getCookies();
        Cookie zClientCookie;

        if ( zCookies != null )
        {
            for ( Cookie zCookie : zCookies )
            {
                zClientCookie = zCookie;

                if ( zClientCookie.getName().equals( pName ) )
                {
                    return zClientCookie;
                }
            }
        }
        return null;
    }

    public static String get( HttpServletRequest pRequest, String pName )
    {
        Cookie zCookie = getRawCookie( pRequest, pName );

        return zCookie != null ? zCookie.getValue() : null;
    }

    public static void set( HttpServletResponse pResponse, String pName, String pValue )
    {
        set( pResponse, pName, pValue, 400 );
    }

    public static void set( HttpServletResponse pResponse, String pName, String pValue, int pExpiresInDays )
    {
        Cookie cookie = new Cookie( pName, pValue );
        cookie.setMaxAge( SECS_PER_DAY * pExpiresInDays );
        pResponse.addCookie( cookie );
    }

    public static void remove( HttpServletRequest pRequest, HttpServletResponse pResponse, String pName )
    {
        Cookie zCookie = getRawCookie( pRequest, pName );
        if ( zCookie != null )
        {
            zCookie.setMaxAge( 0 );
            pResponse.addCookie( zCookie );
        }
    }
}