<?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@magento.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.magento.com for more information.
 *
 * @category    Mage
 * @package     Mage_Tax
 * @copyright  Copyright (c) 2006-2017 X.commerce, Inc. and affiliates (http://www.magento.com)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Tax Config Notification
 *
 * @category   Mage
 * @package    Mage_Tax
 * @author     Magento Core Team <core@magentocommerce.com>
 */
class Mage_Tax_Model_Config_Notification extends Mage_Core_Model_Config_Data
{
    /**
     * Factory instance
     *
     * @var Mage_Core_Model_Factory
     */
    protected $_factory;

    /**
     * Initialize class instance
     *
     * @param array $args
     */
    public function __construct(array $args = array())
    {
        $this->_factory = !empty($args['factory']) ? $args['factory'] : Mage::getSingleton('core/factory');
        parent::__construct($args);
    }

    /**
     * Get config model
     *
     * @return Mage_Core_Model_Config_Data
     */
    protected function _getConfig()
    {
        return $this->_factory->getModel('core/config_data');
    }

    /**
     * Prepare and store cron settings after save
     *
     * @return Mage_Tax_Model_Config_Notification
     */
    protected function _afterSave()
    {
        if ($this->isValueChanged()) {
            $this->_resetNotificationFlag(Mage_Tax_Model_Config::XML_PATH_TAX_NOTIFICATION_DISCOUNT);
            $this->_resetNotificationFlag(Mage_Tax_Model_Config::XML_PATH_TAX_NOTIFICATION_PRICE_DISPLAY);
        }
        return parent::_afterSave();
    }

    /**
     * Reset flag for showing tax notifications
     *
     * @param string $path
     * @return Mage_Tax_Model_Config_Notification
     */
    protected function _resetNotificationFlag($path)
    {
        $this->_getConfig()
            ->load($path, 'path')
            ->setValue(0)
            ->setPath($path)
            ->save();
        return $this;
    }
}