<?php

/*********************************************************************************
 * SugarCRM Community Edition is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2011 SugarCRM Inc.
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Affero General Public License along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 * 
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 * 
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 * 
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo. If the display of the logo is not reasonably feasible for
 * technical reasons, the Appropriate Legal Notices must display the words
 * "Powered by SugarCRM".
 ********************************************************************************/


require_once('modules/Import/sources/ImportDataSource.php');


class ExternalSourceEAPMAdapter extends ImportDataSource
{

    /**
     * @var string The name of the EAPM object.
     */
    private $_eapmName = 'Google';

    /**
     * @var int Total record count of rows that will be imported
     */
    private $_totalRecordCount = -1;

    /**
     * @var The record set loaded from the external source
     */
    private $_recordSet = array();

    protected $_localeSettings = array('importlocale_charset' => 'UTF-8',
                                       'importlocale_dateformat' => 'Y-m-d',
                                       'importlocale_timeformat' => 'H:i',
                                       'importlocale_timezone' => '',
                                       'importlocale_currency' => '',
                                       'importlocale_default_currency_significant_digits' => '',
                                       'importlocale_num_grp_sep' => '',
                                       'importlocale_dec_sep' => '',
                                       'importlocale_default_locale_name_format' => '');


    public function __construct($eapmName)
    {
        global $current_user, $locale;
        $this->_eapmName = $eapmName;
      
        $this->_localeSettings['importlocale_num_grp_sep'] = $current_user->getPreference('num_grp_sep');
        $this->_localeSettings['importlocale_dec_sep'] = $current_user->getPreference('dec_sep');
        $this->_localeSettings['importlocale_default_currency_significant_digits'] = $locale->getPrecedentPreference('default_currency_significant_digits', $current_user);
        $this->_localeSettings['importlocale_default_locale_name_format'] = $locale->getLocaleFormatMacro($current_user);
        $this->_localeSettings['importlocale_currency'] = $locale->getPrecedentPreference('currency', $current_user);
        $this->_localeSettings['importlocale_timezone'] = $current_user->getPreference('timezone');

        $this->setSourceName();
    }
    /**
     * Return a feed of google contacts using the EAPM and Connectors farmework.
     *
     * @throws Exception
     * @param  $maxResults
     * @return array
     */
    public function loadDataSet($maxResults = 0)
    {
         if ( !$eapmBean = EAPM::getLoginInfo($this->_eapmName,true) )
         {
            throw new Exception("Authentication error with {$this->_eapmName}");
         }

        $api = ExternalAPIFactory::loadAPI($this->_eapmName);
        $api->loadEAPM($eapmBean);
        $conn = $api->getConnector();

        $feed = $conn->getList(array('maxResults' => $maxResults, 'startIndex' => $this->_offset));
        if($feed !== FALSE)
        {
            $this->_totalRecordCount = $feed['totalResults'];
            $this->_recordSet = $feed['records'];
        }
        else
        {
            throw new Exception("Unable to retrieve {$this->_eapmName} feed.");
        }
    }

    public function getHeaderColumns()
    {
        return '';
    }
    
    public function getTotalRecordCount()
    {
        return $this->_totalRecordCount;
    }

    public function setSourceName($sourceName = '')
    {
        $this->_sourcename = $this->_eapmName;
    }

    //Begin Implementation for SPL's Iterator interface
    public function current()
    {
        $this->_currentRow =  current($this->_recordSet);
        return $this->_currentRow;
    }

    public function key()
    {
        return key($this->_recordSet);
    }
    
    public function rewind()
    {
        reset($this->_recordSet);
    }

    public function next()
    {
        $this->_rowsCount++;
        next($this->_recordSet);
    }

    public function valid()
    {
        return (current($this->_recordSet) !== FALSE);
    }
}