<?php
/**
 * TNT OFFICIAL MODULE FOR PRESTASHOP.
 *
 * @author    GFI Informatique <www.gfi.fr>
 * @copyright 2016-2017 GFI Informatique, 2016-2017 TNT
 * @license   https://opensource.org/licenses/MIT MIT License
 */

require_once _PS_MODULE_DIR_.'tntofficiel/tntofficiel.php';
require_once _PS_MODULE_DIR_.'tntofficiel/libraries/TNTOfficiel_Debug.php';
require_once _PS_MODULE_DIR_.'tntofficiel/libraries/helper/TNTOfficiel_ShipmentHelper.php';
require_once _PS_MODULE_DIR_.'tntofficiel/libraries/TNTOfficiel_Logger.php';
require_once _PS_MODULE_DIR_.'tntofficiel/libraries/pdf/TNTOfficiel_PDFMerger.php';

class TNTOfficiel_OrderHelper
{
    /** @var TNTOfficiel_OrderHelper */
    private static $_instance = null;

    /** @var TNTOfficiel_Logger */
    private $logger;

    /**
     * Constructor.
     */
    public function __construct()
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $this->logger = new TNTOfficiel_Logger();
    }

    /**
     * Creates a singleton.
     *
     * @param void
     *
     * @return TNTOfficiel_OrderHelper
     */
    public static function getInstance()
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        if (is_null(TNTOfficiel_OrderHelper::$_instance)) {
            TNTOfficiel_OrderHelper::$_instance = new TNTOfficiel_OrderHelper();
        }

        return TNTOfficiel_OrderHelper::$_instance;
    }

    /**
     * Gets the tnt product code for an order.
     *
     * @param $orderId
     *
     * @return string
     *
     * @throws Exception
     */
    public function getOrderData($orderId, $stopOnException = true)
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $sql = 'SELECT * FROM '._DB_PREFIX_.'tntofficiel_order WHERE id_order = '.(int)$orderId;
        $result = Db::getInstance()->getRow($sql, false);
        if (!$result && $stopOnException) {
            throw new Exception('No tnt product was found for the order '.$orderId);
        }

        return $result;
    }

    /**
     * Revert the order state to its previous state.
     *
     * @param $orderId
     *
     * @throws Exception
     */
    public function revertState($orderId)
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $arrTNTOrder = $this->getOrderData($orderId);
        $orderState = new OrderState($arrTNTOrder['previous_state']);
        $history = new OrderHistory();
        $history->id_order = (int)$orderId;
        $history->changeIdOrderState((int)$orderState, (int)$orderId);
        $history->save();
    }

    /**
     * Change the order state to the prestashop default shipping state.
     *
     * @param $orderId
     */
    public function validateShippedState($orderId)
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $history = new OrderHistory();
        $history->id_order = (int)$orderId;
        $history->changeIdOrderState((int)(Configuration::get('PS_OS_SHIPPING')), (int)$orderId);
        $history->save();
    }

    /**
     * Get all the tnt orders.
     *
     * @return array
     *
     * @throws PrestaShopDatabaseException
     */
    public function getTntOrders()
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $sql = 'SELECT * FROM '._DB_PREFIX_.'orders o ';
        $sql .= 'JOIN '._DB_PREFIX_.'tntofficiel_order t ON o.id_order = t.id_order';
        $orders = Db::getInstance()->executeS($sql);

        return $orders;
    }

    /**
     * Concatenate all the bt for the given orders.
     *
     * @param $orderList
     *
     * @return string
     *
     * @throws Exception
     */
    public function getBt($orderList)
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $pdf = new TNTOfficiel_PDFMerger();
        $btCounter = 0;
        foreach ($orderList as $orderId) {
            try {
                $arrTNTOrder = $this->getOrderData($orderId, false);
                $strBTFilename = $arrTNTOrder['bt_filename'];
                if ($strBTFilename && filesize(_PS_MODULE_DIR_.'tnt_media/media/bt/'.$strBTFilename) > 0) {
                    ++$btCounter;
                    $pdf->addPDF(_PS_MODULE_DIR_.'tnt_media/media/bt/'.$strBTFilename);
                }
            } catch (Exception $objException) {
                $objFileLogger = new FileLogger();
                $objFileLogger->setFilename(_PS_ROOT_DIR_.'/log/'.date('Ymd').'_tnt_exception.log');
                $objFileLogger->logError($objException->getMessage());
            }
        }
        if ($btCounter > 0) {
            return $pdf->merge('download', 'bt_list.pdf');
        }
    }

    /**
     * Create a new address and assign it to the order as the deliveray address.
     *
     * @param $arrProduct
     * @param $orderId
     */
    public static function createNewAddress($arrProduct, $orderId)
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $strRepoType = (array_key_exists('xett', $arrProduct) && isset($arrProduct['xett'])) ? 'xett' : 'pex';

        $order = new Order($orderId);
        $oldAddress = new Address($order->id_address_delivery);
        $address = new Address();
        $address->id_country = (int)Context::getContext()->country->id;
        $address->id_customer = 0;
        $address->id_manufacturer = 0;
        $address->id_supplier = 0;
        $address->id_warehouse = 0;
        $address->alias = TNTOfficiel::MODULE_NAME;
        $address->lastname = $oldAddress->lastname; //lastname cannot be empty
        $address->firstname = $oldAddress->firstname; //firstname cannot be empty
        $address->company = sprintf('%s - %s', $arrProduct[ $strRepoType ], $arrProduct['name']);
        $address->address1 = ($strRepoType === 'xett') ? $arrProduct['address'] : $arrProduct['address1'];
        $address->address2 = ($strRepoType === 'xett') ? '' : $arrProduct['address2'];
        $address->city = $arrProduct['city'];
        $address->postcode = $arrProduct['postcode'];
        $address->save();
        //assign the new delivery address to the order
        $order->id_address_delivery = (int)$address->id;
        $order->save();
        //Db::getInstance()->update('orders', array('id_address_delivery' => $address->id), 'id_order = '.(int) $orderId);
    }

}