<?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) 2012 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Adminhtml newsletter subscriber grid block
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author      Magento Core Team <core@magentocommerce.com>
 */

class Mage_Adminhtml_Block_Newsletter_Subscriber extends Mage_Adminhtml_Block_Template
{
    /**
     * Queue collection
     *
     * @var Mage_Newsletter_Model_Mysql4_Queue_Collection
     */
    protected $_queueCollection = null;

    /**
     * Constructor
     *
     * Initializes block
     */
    public function __construct()
    {
        $this->setTemplate('newsletter/subscriber/list.phtml');
    }

    /**
     * Prepares block to render
     *
     * @return Mage_Adminhtml_Block_Newsletter_Subscriber
     */
    protected function _beforeToHtml()
    {
        $this->setChild('grid', $this->getLayout()->createBlock('adminhtml/newsletter_subscriber_grid','grid'));
        return parent::_beforeToHtml();
    }

    /**
     * Return queue collection with loaded neversent queues
     *
     * @return Mage_Newsletter_Model_Mysql4_Queue_Collection
     */
    public function getQueueCollection()
    {
        if(is_null($this->_queueCollection)) {
            $this->_queueCollection = Mage::getResourceSingleton('newsletter/queue_collection')
                ->addTemplateInfo()
                ->addOnlyUnsentFilter()
                ->load();
        }

        return $this->_queueCollection;
    }

    public function getShowQueueAdd()
    {
        return $this->getChild('grid')->getShowQueueAdd();
    }

    /**
     * Return list of neversent queues for select
     *
     * @return array
     */
    public function getQueueAsOptions()
    {
        return $this->getQueueCollection()->toOptionArray();
    }
}