<?php
/*
* 2007-2014 PrestaShop
*
* 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@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2014 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

function invoice_number_set()
{
	Configuration::loadConfiguration();
	$number = 1;

	// Update each order with a number
	$result = Db::getInstance()->executeS('
	SELECT id_order
	FROM '._DB_PREFIX_.'orders
	ORDER BY id_order');
	foreach ($result as $row)
	{
		$order = new Order((int)($row['id_order']));
		$history = $order->getHistory(false);
		foreach ($history as $row2)
		{
			$oS = new OrderState((int)($row2['id_order_state']), Configuration::get('PS_LANG_DEFAULT'));
			if ($oS->invoice)
			{
				Db::getInstance()->execute('UPDATE '._DB_PREFIX_.'orders SET invoice_number = '.(int)($number++).', `invoice_date` = `date_add` WHERE id_order = '.(int)($order->id));
				break ;
			}
		}
	}
	// Add configuration var
	Configuration::updateValue('PS_INVOICE_NUMBER', (int)($number));
}