<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * 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 license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Adminhtml
 * @copyright   Copyright (c) 2010 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */


/**
 * Adminhtml config system template source
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Adminhtml_Model_System_Config_Source_Email_Template extends Varien_Object
{
    /**
     * Config xpath to email template node
     *
     */
    const XML_PATH_TEMPLATE_EMAIL = 'global/template/email/';

    /**
     * Generate list of email templates
     *
     * @return array
     */
    public function toOptionArray()
    {
        if(!$collection = Mage::registry('config_system_email_template')) {
            $collection = Mage::getResourceModel('core/email_template_collection')
                ->load();

            Mage::register('config_system_email_template', $collection);
        }
        $options = $collection->toOptionArray();
        $templateName = Mage::helper('adminhtml')->__('Default Template from Locale');
        $nodeName = str_replace('/', '_', $this->getPath());
        $templateLabelNode = Mage::app()->getConfig()->getNode(self::XML_PATH_TEMPLATE_EMAIL . $nodeName . '/label');
        if ($templateLabelNode) {
            $templateName = Mage::helper('adminhtml')->__((string)$templateLabelNode);
            $templateName = Mage::helper('adminhtml')->__('%s (Default Template from Locale)', $templateName);
        }
        array_unshift(
            $options,
            array(
                'value'=> $nodeName,
                'label' => $templateName
            )
        );
        return $options;
    }

}