<?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_Catalog
 * @copyright  Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Catalog Product tier price api
 *
 * @category   Mage
 * @package    Mage_Catalog
 * @author     Magento Core Team <core@magentocommerce.com>
 */
class Mage_Catalog_Model_Product_Attribute_Tierprice_Api extends Mage_Catalog_Model_Api_Resource
{
    const ATTRIBUTE_CODE = 'tier_price';

    public function __construct()
    {
        $this->_storeIdSessionField = 'product_store_id';
    }

    public function info($productId)
    {
        $product = $this->_initProduct($productId);
        $tierPrices = $product->getData(self::ATTRIBUTE_CODE);

        if (!is_array($tierPrices)) {
            return array();
        }

        $result = array();

        foreach ($tierPrices as $tierPrice) {
            $row = array();
            $row['customer_group_id'] = (empty($tierPrice['all_groups']) ? $tierPrice['cust_group'] : 'all' );
            $row['website']           = ($tierPrice['website_id'] ? Mage::app()->getWebsite($tierPrice['website_id'])->getCode() : 'all');
            $row['qty']               = $tierPrice['price_qty'];
            $row['price']             = $tierPrice['price'];

            $result[] = $row;
        }

        return $result;
    }

    public function update($productId, $tierPrices)
    {
        $product = $this->_initProduct($productId);
        if (!is_array($tierPrices)) {
            $this->_fault('data_invalid', Mage::helper('catalog')->__('Invalid Tier Prices'));
        }

        $updateValue = array();

        foreach ($tierPrices as $tierPrice) {
            if (!is_array($tierPrice)
                || !isset($tierPrice['qty'])
                || !isset($tierPrice['price'])) {
                $this->_fault('data_invalid', Mage::helper('catalog')->__('Invalid Tier Prices'));
            }

            if (!isset($tierPrice['website']) || $tierPrice['website'] == 'all') {
                $tierPrice['website'] = 0;
            } else {
                try {
                    $tierPrice['website'] = Mage::app()->getWebsite($tierPrice['website'])->getId();
                } catch (Mage_Core_Exception $e) {
                    $tierPrice['website'] = 0;
                }
            }

            if (!isset($tierPrice['customer_group_id'])) {
                $tierPrice['customer_group_id'] = 'all';
            }

            if ($tierPrice['customer_group_id'] == 'all') {
                $tierPrice['customer_group_id'] = Mage_Customer_Model_Group::CUST_GROUP_ALL;
            }

            $updateValue[] = array(
                'website_id' => $tierPrice['website'],
                'cust_group' => $tierPrice['customer_group_id'],
                'price_qty'  => $tierPrice['qty'],
                'price'      => $tierPrice['price']
            );

        }


        try {
            if (is_array($errors = $product->validate())) {
                $this->_fault('data_invalid', implode("\n", $errors));
            }
        } catch (Mage_Core_Exception $e) {
            $this->_fault('data_invalid', $e->getMessage());
        }

        try {
        	$product->setData(self::ATTRIBUTE_CODE ,$updateValue);
            $product->validate();
            $product->save();
        } catch (Mage_Core_Exception $e) {
            $this->_fault('not_updated', $e->getMessage());
        }

        return true;
    }

    /**
     * Retrieve product
     *
     * @param int $productId
     * @param string|int $store
     * @return Mage_Catalog_Model_Product
     */
    protected function _initProduct($productId)
    {
        $product = Mage::getModel('catalog/product')
                       ->setStoreId($this->_getStoreId());

        $idBySku = $product->getIdBySku($productId);
        if ($idBySku) {
            $productId = $idBySku;
        }

        $product->load($productId);

        /* @var $product Mage_Catalog_Model_Product */

        if (!$product->getId()) {
            $this->_fault('product_not_exists');
        }

        return $product;
    }
} // Class Mage_Catalog_Model_Product_Attribute_Tierprice End