/home/edulekha/studygroup.edulekha.com/ow_plugins/fbconnect/bol/service_base.php
<?php

/**
 * This software is intended for use with Oxwall Free Community Software http://www.oxwall.org/ and is
 * licensed under The BSD license.

 * ---
 * Copyright (c) 2011, Oxwall Foundation
 * All rights reserved.

 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 *
 *  - Redistributions of source code must retain the above copyright notice, this list of conditions and
 *  the following disclaimer.
 *
 *  - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
 *  the following disclaimer in the documentation and/or other materials provided with the distribution.
 *
 *  - Neither the name of the Oxwall Foundation nor the names of its contributors may be used to endorse or promote products
 *  derived from this software without specific prior written permission.

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * Facebook Connect Service Base
 *
 * @author Sergey Kambalin <greyexpert@gmail.com>
 * @package ow_plugins.fbconnect.bol
 * @since 1.0
 */

class FBCONNECT_BOL_ServiceBase
{
    protected $faceBook;
    /**
     *
     * @var FBCONNECT_CLASS_ConnectDetails
     */
    protected $faceBookDetails;

    /**
     * Class constructor
     *
     */
    protected function __construct()
    {

    }

    /**
     *
     * @return FBCONNECT_CLASS_ConnectDetails
     */
    public function getFaceBookAccessDetails()
    {
        if ( empty($this->faceBookDetails) )
        {
            $this->faceBookDetails = new FBCONNECT_CLASS_ConnectDetails();
        }

        return $this->faceBookDetails;
    }

    /**
     *
     * @return Facebook
     */
    public function getFaceBook()
    {
        if ( empty($this->faceBook) )
        {
            $access = $this->getFaceBookAccessDetails();

            $params = array(
                'app_id' => $access->appId,
                'app_secret' => $access->secret,
                'default_graph_version' => 'v2.10'
            );
            
            $this->faceBook = new Facebook\Facebook($params);
        }

        return $this->faceBook;
    }
}