<?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) 2013 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Sales order view block
 *
 * @method int|null getCustomerId()
 *
 * @category   Mage
 * @package    Mage_Sales
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Sales_Block_Reorder_Sidebar extends Mage_Core_Block_Template
{
    /**
     * Init orders and templates
     */
    public function __construct()
    {
        parent::__construct();

        if ($this->_getCustomerSession()->isLoggedIn()) {
            $this->setTemplate('sales/order/history.phtml');
            $this->initOrders();
        }
    }

    /**
     * Init customer order for display on front
     */
    public function initOrders()
    {
        $customerId = $this->getCustomerId() ? $this->getCustomerId()
            : $this->_getCustomerSession()->getCustomer()->getId();

        $orders = Mage::getResourceModel('sales/order_collection')
            ->addAttributeToFilter('customer_id', $customerId)
            ->addAttributeToFilter('state',
                array('in' => Mage::getSingleton('sales/order_config')->getVisibleOnFrontStates())
            )
            ->addAttributeToSort('created_at', 'desc')
            ->setPage(1,1);
        //TODO: add filter by current website

        $this->setOrders($orders);
    }

    /**
     * Get list of last ordered products
     *
     * @return array
     */
    public function getItems()
    {
        $items = array();
        $order = $this->getLastOrder();
        $limit = 5;

        if ($order) {
            $website = Mage::app()->getStore()->getWebsiteId();
            foreach ($order->getParentItemsRandomCollection($limit) as $item) {
                if ($item->getProduct() && in_array($website, $item->getProduct()->getWebsiteIds())) {
                    $items[] = $item;
                }
            }
        }

        return $items;
    }

    /**
     * Check item product availability for reorder
     *
     * @param  Mage_Sales_Model_Order_Item $orderItem
     * @return boolean
     */
    public function isItemAvailableForReorder(Mage_Sales_Model_Order_Item $orderItem)
    {
        if ($orderItem->getProduct()) {
            return $orderItem->getProduct()->getStockItem()->getIsInStock();
        }
        return false;
    }

    /**
     * Retrieve form action url and set "secure" param to avoid confirm
     * message when we submit form from secure page to unsecure
     *
     * @return string
     */
    public function getFormActionUrl()
    {
        return $this->getUrl('checkout/cart/addgroup', array('_secure' => true));
    }

    /**
     * Last order getter
     *
     * @return Mage_Sales_Model_Order|bool
     */
    public function getLastOrder()
    {
        if (!$this->getOrders()) {
            return false;
        }

        foreach ($this->getOrders() as $order) {
            return $order;
        }
        return false;
    }

    /**
     * Render "My Orders" sidebar block
     *
     * @return string
     */
    protected function _toHtml()
    {
        return $this->_getCustomerSession()->isLoggedIn() || $this->getCustomerId() ? parent::_toHtml() : '';
    }

    /**
     * Retrieve customer session instance
     *
     * @return Mage_Customer_Model_Session
     */
    protected function _getCustomerSession()
    {
        return Mage::getSingleton('customer/session');
    }

    /**
     * Retrieve block cache tags
     *
     * @return array
     */
    public function getCacheTags()
    {
        return array_merge(
            parent::getCacheTags(),
            $this->getItemsTags($this->_getItemProducts())
        );
    }

    /**
     * Retrieve products list from items
     *
     * @return array
     */
    protected function _getItemProducts()
    {
        $products =  array();
        foreach ($this->getItems() as $item) {
            $products[] = $item->getProduct();
        }
        return $products;
    }
}
