<?php
/*
* 2007-2016 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  2007-2016 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

/**
 * @since 1.5.0
 * @property StockMvt $object
 */
class AdminStockMvtControllerCore extends AdminController
{
    public function __construct()
    {
        $this->bootstrap = true;
        $this->context = Context::getContext();
        $this->table = 'stock_mvt';
        $this->className = 'StockMvt';
        $this->identifier = 'id_stock_mvt';
        $this->lang = false;
        $this->multishop_context = Shop::CONTEXT_ALL;

        $this->list_no_link = true;
        $this->displayInformation($this->l('This interface allows you to display the stock movement for a selected warehouse.').'<br />');

        $this->fields_list = array(
            'product_reference' => array(
                'title' => $this->l('Reference'),
                'havingFilter' => true
            ),
            'product_ean13' => array(
                'title' => $this->l('EAN 13'),
                'havingFilter' => true
            ),
            'product_upc' => array(
                'title' => $this->l('UPC'),
                'havingFilter' => true
            ),
            'product_name' => array(
                'title' => $this->l('Name'),
                'havingFilter' => true
            ),
            'warehouse_name' => array(
                'title' => $this->l('Warehouse'),
                'havingFilter' => false,
                'orderby' => true,
                'search' => false,
            ),
            'sign' => array(
                'title' => $this->l('Sign'),
                'align' => 'center',
                'type' => 'select',
                'filter_key' => 'a!sign',
                'list' => array(
                    '1' => $this->l('Increase'),
                    '-1' => $this->l('Decrease'),
                ),
                'icon' => array(
                    -1 => 'remove_stock.png',
                    1 => 'add_stock.png'
                ),
                'class' => 'fixed-width-xs'
            ),
            'physical_quantity' => array(
                'title' => $this->l('Quantity'),
                'align' => 'center',
                'filter_key' => 'a!physical_quantity',
                'class' => 'fixed-width-sm'
            ),
            'price_te' => array(
                'title' => $this->l('Price (tax excl.)'),
                'type' => 'price',
                'currency' => true,
                'filter_key' => 'a!price_te'
            ),
            'reason' => array(
                'title' => $this->l('Label'),
                'havingFilter' => true
            ),
            'employee' => array(
                'title' => $this->l('Employee'),
                'havingFilter' => true
            ),
            'date_add' => array(
                'title' => $this->l('Date'),
                'type' => 'datetime',
                'filter_key' => 'a!date_add'
            ),
        );

        parent::__construct();
    }

    public function initPageHeaderToolbar()
    {
        $this->page_header_toolbar_title = $this->l('Stock movement');

        if (Tools::isSubmit('id_warehouse') && (int)Tools::getValue('id_warehouse') != -1) {
            $this->page_header_toolbar_btn['export-stock-mvt-csv'] = array(
                'short' => $this->l('Export this list as CSV', null, null, false),
                'href' => $this->context->link->getAdminLink('AdminStockMvt').'&csv&id_warehouse='.(int)$this->getCurrentWarehouseId(),
                'desc' => $this->l('Export (CSV)', null, null, false),
                'imgclass' => 'export'
            );
        }

        parent::initPageHeaderToolbar();
    }

    /**
     * AdminController::renderList() override
     * @see AdminController::renderList()
     */
    public function renderList()
    {
        // removes toolbar btn
        $this->toolbar_btn = array();

        // overrides select
        $this->_select = '
			CONCAT(pl.name, \' \', GROUP_CONCAT(IFNULL(al.name, \'\'), \'\')) product_name,
			CONCAT(a.employee_lastname, \' \', a.employee_firstname) as employee,
			mrl.name as reason,
			stock.reference as product_reference,
			stock.ean13 as product_ean13,
			stock.upc as product_upc,
			w.id_currency as id_currency,
			w.name as warehouse_name';

        // overrides join
        $this->_join = 'INNER JOIN '._DB_PREFIX_.'stock stock ON a.id_stock = stock.id_stock
							LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (
								stock.id_product = pl.id_product
								AND pl.id_lang = '.(int)$this->context->language->id.Shop::addSqlRestrictionOnLang('pl').'
							)
							LEFT JOIN `'._DB_PREFIX_.'stock_mvt_reason_lang` mrl ON (
								a.id_stock_mvt_reason = mrl.id_stock_mvt_reason
								AND mrl.id_lang = '.(int)$this->context->language->id.'
							)
							LEFT JOIN `'._DB_PREFIX_.'warehouse` w ON (w.id_warehouse = stock.id_warehouse)
							LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON (pac.id_product_attribute = stock.id_product_attribute)
							LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al ON (
								al.id_attribute = pac.id_attribute
								AND pac.id_product_attribute <> 0
								AND al.id_lang = '.(int)$this->context->language->id.'
							)';
        // overrides group
        $this->_group = 'GROUP BY a.id_stock_mvt';

        // overrides where depending on the warehouse
        $id_warehouse = (int)$this->getCurrentWarehouseId();
        if ($id_warehouse > 0) {
            $this->_where = ' AND w.id_warehouse = '.$id_warehouse;
            self::$currentIndex .= '&id_warehouse='.$id_warehouse;
        }

        // sets the current warehouse
        $this->tpl_list_vars['current_warehouse'] = $this->getCurrentWarehouseId();

        // sets the list of warehouses
        $warehouses = Warehouse::getWarehouses(true);
        array_unshift($warehouses, array('id_warehouse' => -1, 'name' => $this->l('All Warehouses')));
        $this->tpl_list_vars['list_warehouses'] = $warehouses;

        // sets toolbar
        $this->initToolbar();

        // renders list
        $list = parent::renderList();

        // if export requested
        if (Tools::isSubmit('csv')) {
            if (count($this->_list) > 0) {
                $this->renderCSV();
                die;
            } else {
                $this->displayWarning($this->l('There is nothing to export as a CSV.'));
            }
        }

        return $list;
    }

    /**
     * Gets the current warehouse for this controller
     *
     * @return int warehouse_id
     */
    protected function getCurrentWarehouseId()
    {
        static $warehouse = 0;

        if ($warehouse == 0) {
            $warehouse = -1;
            if ((int)Tools::getValue('id_warehouse')) {
                $warehouse = (int)Tools::getValue('id_warehouse');
            }
        }

        return $warehouse;
    }

    /**
     * AdminController::getList() override
     * @see AdminController::getList()
     *
     * @param int         $id_lang
     * @param string|null $order_by
     * @param string|null $order_way
     * @param int         $start
     * @param int|null    $limit
     * @param int|bool    $id_lang_shop
     *
     * @throws PrestaShopException
     */
    public function getList($id_lang, $order_by = null, $order_way = null, $start = 0, $limit = null, $id_lang_shop = false)
    {
        if (Tools::isSubmit('csv')) {
            $limit = false;
        }

        parent::getList($id_lang, $order_by, $order_way, $start, $limit, $id_lang_shop);

        //If there is a field product_name in the list, check if this field is null and display standard message
        foreach ($this->fields_list as $key => $value) {
            if ($key == 'product_name') {
                $nb_items = count($this->_list);

                for ($i = 0; $i < $nb_items; ++$i) {
                    $item = &$this->_list[$i];

                    if (empty($item['product_name'])) {
                        $item['product_name'] = $this->l('The name of this product is not available. It may have been deleted from the system.');
                    }
                }
            }
        }
    }

    /**
     * @see AdminController::initToolbar();
     */
    public function initToolbar()
    {
        if (Tools::isSubmit('id_warehouse') && (int)Tools::getValue('id_warehouse') != -1) {
            $this->toolbar_btn['export-stock-mvt-csv'] = array(
                'short' => 'Export this list as CSV',
                'href' => $this->context->link->getAdminLink('AdminStockMvt').'&amp;csv&amp;id_warehouse='.(int)$this->getCurrentWarehouseId(),
                'desc' => $this->l('Export (CSV)'),
                'imgclass' => 'export'
            );
        }

        parent::initToolbar();
        unset($this->toolbar_btn['new']);
    }

    /**
     * Exports CSV
     */
    public function renderCSV()
    {
        if (!$this->_list) {
            return;
        }

        // header
        if (Tools::getValue('id_warehouse') != -1) {
            $filename = $this->l('stock_mvt').'_'.Warehouse::getWarehouseNameById((int)Tools::getValue('id_warehouse')).'.csv';
        } else {
            $filename = $this->l('stock_mvt').'.csv';
        }
        header('Content-type: text/csv');
        header('Cache-Control: no-store, no-cache');
        header('Content-disposition: attachment; filename="'.$filename);

        // puts keys
        $keys = array('id_order', 'id_supply_order', 'emloyee_firstname', 'employee_lastname', 'physical_quantity',
                      'date_add', 'sign', 'price_te', 'product_name', 'label', 'product_reference', 'product_ean13', 'product_upc');
        echo sprintf("%s\n", implode(';', $keys));


        // puts rows
        foreach ($this->_list as $row) {
            $row_csv = array($row['id_order'], $row['id_supply_order'], $row['employee_firstname'],
                             $row['employee_lastname'], $row['physical_quantity'], $row['date_add'],
                             $row['sign'], $row['price_te'], $row['product_name'],
                             $row['reason'], $row['product_reference'], $row['product_ean13'], $row['product_upc']
            );

            // puts one row
            echo sprintf("%s\n", implode(';', array_map(array('CSVCore', 'wrap'), $row_csv)));
        }
    }
    
    public function initContent()
    {
        if (!Configuration::get('PS_ADVANCED_STOCK_MANAGEMENT')) {
            $this->warnings[md5('PS_ADVANCED_STOCK_MANAGEMENT')] = $this->l('You need to activate advanced stock management before using this feature.');
            return false;
        }
        parent::initContent();
    }
    
    public function initProcess()
    {
        if (!Configuration::get('PS_ADVANCED_STOCK_MANAGEMENT')) {
            $this->warnings[md5('PS_ADVANCED_STOCK_MANAGEMENT')] = $this->l('You need to activate advanced stock management before using this feature.');
            return false;
        }
        parent::initProcess();
    }
}
