<?php
/**
 * Moc10 Library
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.TXT.
 * It is also available through the world-wide-web at this URL:
 * http://www.moc10phplibrary.com/LICENSE.TXT
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to hide@address.com so we can send you a copy immediately.
 *
 * @category   Moc10
 * @package    Moc10_Cookie
 * @author     Nick Sagona, III <hide@address.com>
 * @copyright  Copyright (c) 2009-2011 Moc 10 Media, LLC. (http://www.moc10media.com)
 * @license    http://www.moc10phplibrary.com/LICENSE.TXT     New BSD License
 */

/**
 * Moc10_Cookie
 *
 * @category   Moc10
 * @package    Moc10_Cookie
 * @author     Nick Sagona, III <hide@address.com>
 * @copyright  Copyright (c) 2009-2011 Moc 10 Media, LLC. (http://www.moc10media.com)
 * @license    http://www.moc10phplibrary.com/LICENSE.TXT     New BSD License
 * @version    1.9.7
 */

class Moc10_Cookie
{

    /**
     * Instance of the cookie object
     * @var Moc10_Cookie
     */
    static private $_instance;

    /**
     * Cookie IP
     * @var string
     */
    private $_ip = null;

    /**
     * Constructor
     *
     * Private method to instantiate the cookie object.
     *
     * @return void
     */
    private function __construct()
    {

        // Set the cookie owner's IP address.
        $this->_ip = $_SERVER['REMOTE_ADDR'];

    }

    /**
     * Determine whether or not an instance of the cookie object exists
     * already, and instantiate the object if it doesn't exist.
     *
     * @return Moc10_Cookie
     */
    public static function getInstance()
    {

        if (empty(self::$_instance)) {
            self::$_instance = new Moc10_Cookie();
        }

        return self::$_instance;

    }

    /**
     * Set a property in the cookie object that is linked to the $_COOKIE global variable.
     *
     * @param  string $name
     * @param  mixed $value
     * @param  int $exp
     * @return void
     */
    public function set($name, $value, $exp = 0)
    {

        setcookie($name, $value, $exp);

    }

    /**
     * Get method to return the value of the $_COOKIE global variable.
     *
     * @param  string $name
     * @return mixed
     */
    public function __get($name)
    {

        if (isset($_COOKIE[$name])) {
            return $_COOKIE[$name];
        } else {
            return null;
        }

    }

    /**
     * Return the isset value of the $_COOKIE global variable.
     *
     * @param  string $name
     * @return boolean
     */
    public function __isset($name)
    {

        return isset($_COOKIE[$name]);

    }

    /**
     * Unset the value in the $_COOKIE global variable.
     *
     * @param  string $name
     * @return void
     */
    public function __unset($name)
    {

        setcookie($name, $_COOKIE[$name], (time() - 3600));

    }

    /**
     * Return the current the IP address.
     *
     * @return string
     */
    public function getIp()
    {

        return $this->_ip;

    }

}