<?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_Sales
 * @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)
 */

/**
 * Invoice API V2
 *
 * @category   Mage
 * @package    Mage_Sales
 * @author     Magento Core Team <core@magentocommerce.com>
 */
class Mage_Sales_Model_Order_Invoice_Api_V2 extends Mage_Sales_Model_Order_Invoice_Api
{
    /**
     * Retrive invoices by filters
     *
     * @param array $filters
     * @return array
     */
    public function items($filters = null)
    {
        //TODO: add full name logic
        $collection =  Mage::getModel('sales/order_invoice')->getCollection()
            ->addAttributeToSelect('order_id')
            ->addAttributeToSelect('increment_id')
            ->addAttributeToSelect('created_at')
            ->addAttributeToSelect('state')
            ->addAttributeToSelect('grand_total')
            ->addAttributeToSelect('order_currency_code')
            ->joinAttribute('billing_firstname', 'order_address/firstname', 'billing_address_id', null, 'left')
            ->joinAttribute('billing_lastname', 'order_address/lastname', 'billing_address_id', null, 'left')
            ->joinAttribute('order_increment_id', 'order/increment_id', 'order_id', null, 'left')
            ->joinAttribute('order_created_at', 'order/created_at', 'order_id', null, 'left');

        $preparedFilters = array();
        if (isset($filters->filter)) {
            foreach ($filters->filter as $_filter) {
                $preparedFilters[][$_filter->key] = $_filter->value;
            }
        }
        if (isset($filters->complex_filter)) {
            foreach ($filters->complex_filter as $_filter) {
                $_value = $_filter->value;
                if(is_object($_value)) {
                    $preparedFilters[][$_filter->key] = array(
                        $_value->key => $_value->value
                    );
                } elseif(is_array($_value)) {
                    $preparedFilters[][$_filter->key] = array(
                        $_value['key'] => $_value['value']
                    );
                } else {
                    $preparedFilters[][$_filter->key] = $_value;
                }
            }
        }

        if (!empty($preparedFilters)) {
            try {
                foreach ($preparedFilters as $preparedFilter) {
                    foreach ($preparedFilter as $field => $value) {
                        if (isset($this->_attributesMap['order'][$field])) {
                            $field = $this->_attributesMap['order'][$field];
                        }

                        $collection->addFieldToFilter($field, $value);
                    }
                }
            } catch (Mage_Core_Exception $e) {
                $this->_fault('filters_invalid', $e->getMessage());
            }
        }

        $result = array();

        foreach ($collection as $invoice) {
            $result[] = $this->_getAttributes($invoice, 'invoice');
        }

        return $result;
    }

    protected function _prepareItemQtyData($data)
    {
        $_data = array();
        foreach ($data as $item) {
            if (isset($item->order_item_id) && isset($item->qty)) {
                $_data[$item->order_item_id] = $item->qty;
            }
        }
        return $_data;
    }

    /**
     * Create new invoice for order
     *
     * @param string $orderIncrementId
     * @param array $itemsQty
     * @param string $comment
     * @param booleam $email
     * @param boolean $includeComment
     * @return string
     */
    public function create($orderIncrementId, $itemsQty, $comment = null, $email = false, $includeComment = false)
    {
        $order = Mage::getModel('sales/order')->loadByIncrementId($orderIncrementId);
        $itemsQty = $this->_prepareItemQtyData($itemsQty);
        /* @var $order Mage_Sales_Model_Order */
        /**
          * Check order existing
          */
        if (!$order->getId()) {
             $this->_fault('order_not_exists');
        }

        /**
         * Check invoice create availability
         */
        if (!$order->canInvoice()) {
             $this->_fault('data_invalid', Mage::helper('sales')->__('Cannot do invoice for order.'));
        }

        $invoice = $order->prepareInvoice($itemsQty);

        $invoice->register();

        if ($comment !== null) {
            $invoice->addComment($comment, $email);
        }

        if ($email) {
            $invoice->setEmailSent(true);
        }

        $invoice->getOrder()->setIsInProcess(true);

        try {
            $transactionSave = Mage::getModel('core/resource_transaction')
                ->addObject($invoice)
                ->addObject($invoice->getOrder())
                ->save();

            $invoice->sendEmail($email, ($includeComment ? $comment : ''));
        } catch (Mage_Core_Exception $e) {
            $this->_fault('data_invalid', $e->getMessage());
        }

        return $invoice->getIncrementId();
    }
}
