<?php
/**
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License version 3.0
* that is bundled with this package in the file LICENSE.md
* It is also available through the world-wide-web at this URL:
* https://opensource.org/license/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 support@qloapps.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade this module to a newer
* versions in the future. If you wish to customize this module for your needs
* please refer to https://store.webkul.com/customisation-guidelines for more information.
*
* @author Webkul IN
* @copyright Since 2010 Webkul
* @license https://opensource.org/license/osl-3-0-php Open Software License version 3.0
*/

class AdminOrderRefundRequestsController extends ModuleAdminController
{
    public function __construct()
    {
        $this->bootstrap = true;
        $this->table = 'order_return';
        $this->className = 'OrderReturn';
        $this->list_no_link = true;
        $this->context = Context::getContext();

        $this->_select = ' ord.`id_currency`, CONCAT(firstname, " ", lastname) AS cust_name';
        $this->_join .= ' LEFT JOIN `'._DB_PREFIX_.'orders` ord ON (a.`id_order` = ord.`id_order`)';
        $this->_join .= ' LEFT JOIN `'._DB_PREFIX_.'customer` cust ON (cust.`id_customer` = ord.`id_customer`)';

        $this->_orderWay = 'DESC';
        $this->allow_export = true;
        $this->_new_list_header_design = true;
        if ($idOrder = Tools::getValue('id_order')) {
            $this->_select .= ', orsl.`name` as `status_name`, ors.`color`, SUM(IF((ordrd.id_htl_booking != 0) , 1, 0)) as num_rooms, SUM(IF((ordrd.id_service_product_order_detail != 0) , 1, 0)) as num_products';
            $this->_join .= 'LEFT JOIN '._DB_PREFIX_.'order_return_state ors ON (ors.`id_order_return_state` = a.`state`)';
            $this->_join .= 'LEFT JOIN '._DB_PREFIX_.'order_return_state_lang orsl ON (orsl.`id_order_return_state` = a.`state` AND orsl.`id_lang` = '.(int)$this->context->language->id.')';
            $this->_join .= ' LEFT JOIN `'._DB_PREFIX_.'order_return_detail` ordrd ON (a.`id_order_return` = ordrd.`id_order_return`)';
            $this->_where = ' AND a.`id_order`='. (int)$idOrder;
            // optional: narrow the list down to requests that include one specific
            // booking or product — used by the Refund column's link on the order detail page
            if ($idHtlBooking = (int) Tools::getValue('id_htl_booking')) {
                $this->_where .= ' AND a.`id_order_return` IN (
                    SELECT id_order_return FROM `'._DB_PREFIX_.'order_return_detail` WHERE id_htl_booking = '.$idHtlBooking.'
                )';
            } elseif ($idServiceProductOrderDetail = (int) Tools::getValue('id_service_product_order_detail')) {
                $this->_where .= ' AND a.`id_order_return` IN (
                    SELECT id_order_return FROM `'._DB_PREFIX_.'order_return_detail` WHERE id_service_product_order_detail = '.$idServiceProductOrderDetail.'
                )';
            }
            $this->_group = 'GROUP BY a.`id_order_return`';
        } else {
            $this->_select .= ', ord.`total_paid_tax_incl` AS total_order, os.`id_order_state`, os.`color`, COUNT(IF(a.`state` = '.(int) Configuration::get('PS_ORS_PENDING').', 1, NULL)) AS total_pending_requests, SUM(a.`refunded_amount`) AS refunded_amount';
            $this->_join .= 'LEFT JOIN '._DB_PREFIX_.'order_state os ON (os.`id_order_state` = ord.`current_state`)';
            $this->_join .= 'LEFT JOIN '._DB_PREFIX_.'order_state_lang osl ON (osl.`id_order_state` = os.`id_order_state` AND osl.`id_lang` = '.(int)$this->context->language->id.')';
            $this->_group = 'GROUP BY ord.`id_order`';
        }

        $orderStatuses = OrderState::getOrderStates($this->context->language->id);
        $ordStatuses = array();
        foreach ($orderStatuses as $status) {
            $ordStatuses[$status['id_order_state']] = $status['name'];
        }
        /*for showing status of booking with badge_danger or success*/
        $this->fields_list = array();

        if ($idOrder = Tools::getValue('id_order')) {
            $refundStatuses = OrderReturnStateCore::getOrderReturnStates($this->context->language->id);

            // to set columns for products and rooms count in render list
            $objOrderReturn = new OrderReturn();
            $refundReqBookings = $objOrderReturn->getOrderRefundRequestedBookings($idOrder);
            $refundReqProducts = $objOrderReturn->getOrderRefundRequestedProducts($idOrder);

            $retStatuses = array();
            foreach ($refundStatuses as $status) {
                $retStatuses[$status['id_order_return_state']] = $status['name'];
            }
            $this->fields_list['id_order_return'] = array(
                'title' => $this->l('Request ID'),
                'align' => 'center',
                'class' => 'fixed-width-xs',
            );
            $this->fields_list['id_order'] = array(
                'title' => $this->l('Order ID'),
                'align' => 'center',
                'class' => 'fixed-width-xs',
                'callback' => 'setOrderLink',
                'havingFilter' => true,
            );
            $this->fields_list['cust_name'] = array(
                'title' => $this->l('Customer Name'),
                'align' => 'center',
                'havingFilter' => true,
                'callback' => 'setCustomerLink',
            );

            if ($refundReqBookings) {
                $this->fields_list['num_rooms'] = array(
                    'title' => $this->l('Total Rooms'),
                    'align' => 'center',
                    'havingFilter' => true,
                );
            }
            if ($refundReqProducts) {
                $this->fields_list['num_products'] = array(
                    'title' => $this->l('Total Products'),
                    'align' => 'center',
                    'havingFilter' => true,
                );
            }
            $this->fields_list['refunded_amount'] = array(
                'title' => $this->l('Refunded Amount'),
                'align' => 'center',
                'callback' => 'setOrderCurrency',
                'havingFilter' => true,
            );
            $this->fields_list['status_name'] = array(
                'title' => $this->l('Refund Status'),
                'type' => 'select',
                'color' => 'color',
                'list' => $retStatuses,
                'filter_key' => 'ors!id_order_return_state',
                'filter_type' => 'int',
            );
            $this->fields_list['date_add'] = array(
                'title' => $this->l('Requested Date'),
                'type' => 'datetime',
                'havingFilter' => true,
                'filter_key' => 'a!date_add',
            );
        } else {
            $this->fields_list['id_order'] = array(
                'title' => $this->l('Order ID'),
                'align' => 'center',
                'class' => 'fixed-width-xs',
                'callback' => 'setOrderLink',
                'havingFilter' => true,
            );
            $this->fields_list['cust_name'] = array(
                'title' => $this->l('Customer Name'),
                'align' => 'center',
                'havingFilter' => true,
                'callback' => 'setCustomerLink',
            );
            $this->fields_list['refunded_amount'] = array(
                'title' => $this->l('Refunded Amount'),
                'align' => 'center',
                'callback' => 'setOrderCurrency',
                'havingFilter' => true,
            );
            $this->fields_list['total_order'] = array(
                'title' => $this->l('Total Order Amount'),
                'align' => 'center',
                'callback' => 'setOrderCurrency',
                'havingFilter' => true,
            );
            $this->fields_list['total_pending_requests'] = array(
                'title' => $this->l('Pending Requests'),
                'align' => 'center',
                'type' => 'range',
                'havingFilter' => true,
            );
        }
        $this->addRowAction('view');
        $this->identifier = 'id_order_return';

        // START send access query information to the admin controller
        $this->access_select = ' SELECT a.`id_order_return` FROM '._DB_PREFIX_.'order_return a';
        $this->access_join = ' INNER JOIN '._DB_PREFIX_.'htl_booking_detail hbd ON (hbd.id_order = a.id_order)';
        if ($acsHtls = HotelBranchInformation::getProfileAccessedHotels($this->context->employee->id_profile, 1, 1)) {
            $this->access_where = ' WHERE hbd.id_hotel IN ('.implode(',', $acsHtls).')';
        }

        parent::__construct();


        $this->_conf[101] = $this->l('Refund request has been denied successfully.');
        $this->_conf[102] = $this->l('Refund request has been completed successfully.');
    }

    public function init()
    {
        parent::init();
        if ($idOrder = Tools::getValue('id_order')) {
            self::$currentIndex = self::$currentIndex.'&id_order='.(int) $idOrder;
        }
    }


    public function setOrderCurrency($echo, $row)
    {
        return Tools::displayPrice($echo, (int) $row['id_currency']);
    }

    public function setOrderLink($idOrder, $row)
    {
        return '<a href="'.$this->context->link->getAdminLink('AdminOrders').'&id_order='.$idOrder.'&vieworder">#'.$idOrder.'</a>';
    }

    public function setCustomerLink($customerName, $row)
    {
        if ($this->action == 'export') {
            return  $customerName.' (#'.$row['id_customer'].')';
        }

        return '<a href="'.$this->context->link->getAdminLink('AdminCustomers').'&id_customer='.$row['id_customer'].'&viewcustomer">'.$customerName.' (#'.$row['id_customer'].')</a>';
    }

    public function getList(
        $id_lang,
        $order_by = null,
        $order_way = null,
        $start = 0,
        $limit = null,
        $id_lang_shop = false
    ){
        if ($this->action == 'export' && empty($this->_listsql)) {
            if (Tools::getValue('id_order')) {
                $this->_select .= ', ordtl.*';
            }  else {
                $this->_select .= ', GROUP_CONCAT(ordtl.`room_num`) AS `room_num`,
                    GROUP_CONCAT(DISTINCT ordtl.`room_type_name`) AS `room_type_name`,
                    ordtl.`hotel_name`, ordtl.`id_order`,
                    GROUP_CONCAT(ordtl.`date_from`) AS `date_from`,
                    GROUP_CONCAT(ordtl.`date_to`) AS `date_to`';
            }

            $this->_join .= ' LEFT JOIN (
                SELECT GROUP_CONCAT(hbd.`room_num`) AS room_num,
                GROUP_CONCAT(DISTINCT(hbd.`room_type_name`)) AS room_type_name,
                ord.`id_order_return`, hbd.`hotel_name`, hbd.`id_order`,
                GROUP_CONCAT(hbd.`date_from`) AS date_from,
                GROUP_CONCAT(hbd.`date_to`) AS date_to
                FROM `'._DB_PREFIX_.'order_return_detail` ord
                LEFT JOIN `'._DB_PREFIX_.'htl_booking_detail` hbd ON ord.`id_htl_booking` = hbd.`id`
                GROUP BY ord.`id_order_return`
            ) AS ordtl ON (ordtl.`id_order_return` = a.`id_order_return`)';
            $this->fields_list = array_merge($this->fields_list, array(
                'room_num' => array(
                    'title' => $this->l('Room num(s)')
                ),
                'room_type_name' => array(
                    'title' => $this->l('Room type(s)'),
                    'callback' => 'getUniqueRoomTypeNames'
                ),
                'hotel_name' => array(
                    'title' => $this->l('Property Name')
                ),
                'date_from' => array(
                    'title' => $this->l('Date From')
                ),
                'date_to' => array(
                    'title' => $this->l('Date To')
                ),
            ));
        }

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

    public function getUniqueRoomTypeNames($roomTypeNames, $tr)
    {
        if ($roomTypeNames) {
            $roomTypeNames = explode(',', $roomTypeNames);
            $roomTypeNames = array_unique($roomTypeNames);
            $roomTypeNames = implode(',', $roomTypeNames);
        }

        return $roomTypeNames;
    }

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

    public function displayViewLink($token, $idOrderReturn, $name = null)
    {
        if (!Tools::getValue('id_order')) {
            $objOrderReturn = new OrderReturn($idOrderReturn);
            return '<a href="'.$this->context->link->getAdminLink('AdminOrderRefundRequests').'&id_order='.(int)$objOrderReturn->id_order.'" >
                <i class="icon-search-plus"></i> '.$this->l('View').
            '</a>';
        } else {
            return '<a href="'.$this->context->link->getAdminLink('AdminOrderRefundRequests').'&id_order_return='.(int)$idOrderReturn.
            '&view'.$this->table.'" title="'.$this->l('Cancel').'">
                <i class="icon-search-plus"></i> '.$this->l('View').
            '</a>';
        }
    }

    public function renderView()
    {
        if (!($objOrderReturn = $this->loadObject())) {
            return;
        }

        $refundStatuses = OrderReturnStateCore::getOrderReturnStates($this->context->language->id);
        $objCustomer = new Customer($objOrderReturn->id_customer);
        $objOrder = new Order($objOrderReturn->id_order);
        $orderCurrency = new Currency($objOrder->id_currency);

        $objRefundRules = new HotelOrderRefundRules();
        if ($refundReqBookings = $objOrderReturn->getOrderRefundRequestedBookings($objOrderReturn->id_order, $objOrderReturn->id)){
            foreach ($refundReqBookings as &$booking) {
                $bookingCharges = $objRefundRules->getBookingCancellationDetails(
                    $objOrderReturn->id_order,
                    $objOrderReturn->id,
                    $booking['id']
                );
                
                $booking = array_merge($booking, array_shift($bookingCharges));

                if (!empty($booking['selling_object_name'])) {
                    $booking['selling_object_name'] = $booking['selling_object_name'];
                }
            }
        }

        $refundReqProducts = $objOrderReturn->getOrderRefundRequestedProducts($objOrderReturn->id_order, $objOrderReturn->id);

        $paymentMethods = array();
        foreach (PaymentModule::getInstalledPaymentModules() as $payment) {
            $module = Module::getInstanceByName($payment['name']);
            if (Validate::isLoadedObject($module) && $module->active) {
                $paymentMethods[] = $module->displayName;
            }
        }

        $orderTotalPaid = $objOrder->getTotalPaid();
        $this->context->smarty->assign(
            array (
                'orderTotalPaid' => $orderTotalPaid,
                'customer_name' => $objCustomer->firstname.' '.$objCustomer->lastname,
                'customer_email' => $objCustomer->email,
                'orderReturnInfo' => (array)$objOrderReturn,
                'refundReqBookings' => $refundReqBookings,
                'refundReqProducts' => $refundReqProducts,
                'orderInfo' => (array) $objOrder,
                'orderCurrency' => (array) $orderCurrency,
                'currentOrderStateInfo' => (array) new OrderState($objOrder->current_state,
                $this->context->language->id),
                'currentStateInfo' => (array) new OrderReturnState($objOrderReturn->state,
                $this->context->language->id),
                'current_id_lang' => $this->context->language->id,
                'refundStatuses' => $refundStatuses,
                'ROOM_STATUS_CANCELLED' => HotelBookingDetail::STATUS_CANCELLED,
                'isRefundCompleted' => $objOrderReturn->hasBeenCompleted(),
                'paymentMethods' => $paymentMethods,
                'name_controller' => Tools::getValue('controller'),
                'expiry_date' => time() + (3600 * 24 * 365.25)
            )
        );

        return parent::renderView();
    }

    public function postProcess()
    {
        /*If Admin update the status of the order cancellation request*/
        if (Tools::isSubmit('submitRefundReqBookings') || Tools::isSubmit('submitRefundReqBookingsAndStay')) {
            $idOrderReturn = Tools::getValue('id_order_return');
            $idsReturnDetail = Tools::getValue('id_order_return_detail');
            if (Validate::isLoadedObject($objOrderReturn = new OrderReturn($idOrderReturn))) {
                $objOrder = new Order($objOrderReturn->id_order);
                $orderTotalPaid = $objOrder->getTotalPaid();

                $idRefundState = Tools::getValue('id_refund_state');
                if (Validate::isLoadedObject($objRefundState = new OrderReturnState($idRefundState))) {
                    if ($idRefundState != $objOrderReturn->state) {
                        if ($objRefundState->refunded) {
                            $refundedAmounts = Tools::getValue('refund_amounts');
                            if ($idsReturnDetail && count($idsReturnDetail)) {
                                if ($refundedAmounts) {
                                    foreach ($idsReturnDetail as $idRetDetail) {
                                        if (!isset($refundedAmounts[$idRetDetail]) || !Validate::isPrice($refundedAmounts[$idRetDetail])) {
                                            $this->errors[] = $this->l('Invalid refund amount(s) entered.');
                                        }
                                    }
                                } else {
                                    $this->errors[] = $this->l('Invalid refund amount(s) entered.');
                                }

                                // If there are no errors in the refund amounts the check validations depends on refund amount
                                if (!count($this->errors)) {
                                    $totalRefundAmount = array_sum($refundedAmounts);
                                    if (Tools::isSubmit('generateCreditSlip')) {
                                        if ($totalRefundAmount <= 0) {
                                            $this->errors[] = $this->l('Invalid refund amount(s) for generating credit slip.');
                                        }
                                    }
                                    if (Tools::isSubmit('generateDiscount')) {
                                        if ($totalRefundAmount <= 0) {
                                            $this->errors[] = $this->l('Invalid refund amount(s) for generating voucher.');
                                        }
                                    }

                                    if (Tools::isSubmit('refundTransactionAmount')) {
                                        if ($totalRefundAmount <= 0) {
                                            $this->errors[] = $this->l('Invalid refund amount(s) for entering refund transaction details.');
                                        } else {
                                            $paymentMode = Tools::getValue('payment_method');
                                            if (!$paymentMode) {
                                                $paymentMode = Tools::getValue('other_payment_mode');
                                                if (!$paymentMode) {
                                                    $this->errors[] = $this->l('Please enter the payment mode of the refund transaction.');
                                                } elseif (!Validate::isGenericName($paymentMode)) {
                                                    $this->errors[] = $this->l('Invalid payment mode entered.');
                                                }
                                            }

                                            $idTransaction = Tools::getValue('id_transaction');
                                            if (!$idTransaction) {
                                                $this->errors[] = $this->l('Please enter the transaction id of the refund transaction.');
                                            } elseif (!Validate::isGenericName($idTransaction)) {
                                                $this->errors[] = $this->l('Invalid transaction id entered.');
                                            }
                                        }
                                    }
                                }
                            } else {
                                $this->errors[] = $this->l('Select at least one booking for refund.');
                            }
                        }
                    } else {
                        $this->errors[] = $this->l('Please select a different refund status.');
                    }
                } else {
                    $this->errors[] = $this->l('Invalid refund state.');
                }

                if (Tools::isSubmit('generateDiscount')) {
                    if (!$voucher_expiry_date = Tools::getValue('voucher_expiry_date')) {
                        $this->errors[] = $this->l('Voucher expiry date is required.');
                    } elseif (!Validate::isDate($voucher_expiry_date)) {
                        $this->errors[] = $this->l('Invalid voucher expiry date.');
                    }
                }
            } else {
                $this->errors[] = $this->l('Invalid refund information found.');
            }

            if (!count($this->errors)) {
                $bookingList = array();
                $totalRefundedAmount = 0;

                // If refund is completed then work on the booking list
                if ($objRefundState->refunded) {
                    foreach ($idsReturnDetail as $idRetDetail) {
                        $objOrderReturnDetail = new OrderReturnDetail($idRetDetail);
                        // the amount staff entered for this line
                        $refundedAmount = $refundedAmounts[$idRetDetail];

                        if ($idHtlBooking = $objOrderReturnDetail->id_htl_booking) {
                            $objHtlBooking = new HotelBookingDetail($idHtlBooking);
                            // perform booking refund processes in the booking tables
                            $objHtlBooking->processRefundInBookingTables($refundedAmount);

                            // paid Cancelled/No-show requests only flip the room's status
                            // once the refund is actually approved here
                            if ($objOrderReturn->event_type == OrderReturn::EVENT_TYPE_CANCELLATION) {
                                $objHtlBooking->changeStatus(HotelBookingDetail::STATUS_CANCELLED, array(
                                    'id_employee' => (int) $this->context->employee->id,
                                    'remark' => $objOrderReturn->question,
                                ));
                            } elseif ($objOrderReturn->event_type == OrderReturn::EVENT_TYPE_NO_SHOW) {
                                $objHtlBooking->changeStatus(HotelBookingDetail::STATUS_NO_SHOW, array(
                                    'id_employee' => (int) $this->context->employee->id,
                                    'remark' => $objOrderReturn->question,
                                ));
                            }
                        } elseif ($id_service_product_order_detail = $objOrderReturnDetail->id_service_product_order_detail) {
                            $objServiceProductOrderDetail = new ServiceProductOrderDetail($id_service_product_order_detail);
                            // perform booking refund processes in the service product order tables
                            $objServiceProductOrderDetail->processRefundInTables($refundedAmount);
                        }

                        // save individual booking amount for every booking refund
                        $objOrderReturnDetail->refunded_amount = $refundedAmount;
                        // set the id_customization to check if in this request which bookings are refunded or not for future
                        $objOrderReturnDetail->id_customization = 1;
                        $objOrderReturnDetail->save();

                        // sum the refund amount for total order refund amount
                        $totalRefundedAmount += $refundedAmount;

                        if (Tools::isSubmit('generateCreditSlip')) {
                            if ($idHtlBooking = $objOrderReturnDetail->id_htl_booking) {
                                $numDays = HotelHelper::getNumberOfDays(
                                    $objHtlBooking->date_from,
                                    $objHtlBooking->date_to
                                );

                                $objHtlBooking = new HotelBookingDetail($idHtlBooking);
                                $idOrderDetail = $objHtlBooking->id_order_detail;

                                // split the admin's single tax-incl entry using the booking's
                                // own tax ratio; (float) cast since DB decimals come back as
                                // strings like "0.000000", which PHP treats as truthy
                                $refundedAmountTaxExcl = (float) $objHtlBooking->total_price_tax_incl
                                    ? $refundedAmount * ($objHtlBooking->total_price_tax_excl / $objHtlBooking->total_price_tax_incl)
                                    : $refundedAmount;

                                $bookingList[$idRetDetail] = array(
                                    'id_htl_booking' => $idHtlBooking,
                                    'id_order_detail' => $idOrderDetail,
                                    'quantity' => $numDays,
                                    'num_days' => $numDays,
                                    'unit_price' => $refundedAmountTaxExcl / $numDays,
                                );
                            } elseif ($idServiceProductOrder = $objOrderReturnDetail->id_service_product_order_detail) {
                                $objServiceProductOrderDetail = new ServiceProductOrderDetail($idServiceProductOrder);

                                // same reasoning as the booking branch above
                                $refundedAmountTaxExcl = (float) $objServiceProductOrderDetail->total_price_tax_incl
                                    ? $refundedAmount * ($objServiceProductOrderDetail->total_price_tax_excl / $objServiceProductOrderDetail->total_price_tax_incl)
                                    : $refundedAmount;

                                $bookingList[$idRetDetail] = array(
                                    'id_service_product_order_detail' => $idServiceProductOrder,
                                    'id_order_detail' => $objServiceProductOrderDetail->id_order_detail,
                                    'quantity' => $objServiceProductOrderDetail->quantity,
                                    'unit_price' => $refundedAmountTaxExcl / $objServiceProductOrderDetail->quantity,
                                );
                            }
                        }
                    }

                    // if bookings are refunded then set the payment information
                    if (Tools::isSubmit('refundTransactionAmount')) {
                        $objOrderReturn->payment_mode = $paymentMode;
                        $objOrderReturn->id_transaction = $idTransaction;
                    } elseif (Tools::isSubmit('generateDiscount')) {
                        $objOrderReturn->payment_mode = 'Voucher';
                    } elseif (!((float) $orderTotalPaid)) {
                        $objOrderReturn->payment_mode = 'Unpaid by customer';
                        $objOrderReturn->id_transaction = '-';
                    }
                }

                $objOrderReturn->refunded_amount = $totalRefundedAmount;
                if ($objOrderReturn->save()) {
                    // change state of the order refund
                    $objOrderReturn->changeIdOrderReturnState($idRefundState);

                    // change state of the order to refunded if all the room bookings in the order are completely refunded
                    // (syncRefundStatus() itself skips the bump if the order
                    // is already at that state — e.g. already bumped by a No-show/Cancelled
                    // room-status change before this request was ever approved)
                    if ($objRefundState->refunded) {
                        $objOrder->syncRefundStatus();
                    }

                    // E-mail params
                    if ((Tools::isSubmit('generateCreditSlip') || Tools::isSubmit('generateDiscount')) && !count($this->errors)) {
                        $customer = new Customer((int)($objOrder->id_customer));
                        $params['{lastname}'] = $customer->lastname;
                        $params['{firstname}'] = $customer->firstname;
                        $params['{id_order}'] = $objOrder->id;
                        $params['{order_name}'] = $objOrder->getUniqReference();
                    }

                    // Generate credit slip
                    if (Tools::isSubmit('generateCreditSlip') && !count($this->errors)) {
                        if (!$idCreditSlip = OrderSlip::create($objOrder, $bookingList, 0, 0, 0, 0)) {
                            $this->errors[] = $this->l('A credit slip cannot be generated. ');
                        } else {
                            $objOrderReturn->id_return_type = $idCreditSlip;
                            $objOrderReturn->return_type = OrderReturn::RETURN_TYPE_ORDER_SLIP;
                            $objOrderReturn->save();

                            Hook::exec('actionOrderSlipAdd', array('order' => $objOrder, 'bookingList' => $bookingList));

                            $params['{credit_slip_url}'] = $this->context->link->getPageLink('order-slip', true);

                            @Mail::Send(
                                (int)$objOrder->id_lang,
                                'credit_slip',
                                Mail::l('New credit slip regarding your order', (int)$objOrder->id_lang),
                                $params,
                                $customer->email,
                                $customer->firstname.' '.$customer->lastname,
                                null,
                                null,
                                null,
                                null,
                                _PS_MAIL_DIR_,
                                true,
                                (int)$objOrder->id_shop
                            );
                        }
                    } elseif (Tools::isSubmit('generateDiscount') && !count($this->errors)) {
                        // Generate voucher
                        $cartrule = new CartRule();
                        $language_ids = Language::getIDs();
                        $cartrule->description = sprintf($this->l('Voucher for order #%d'), $objOrder->id);
                        foreach ($language_ids as $id_lang) {
                            // Define a temporary name
                            $cartrule->name[$id_lang] = 'V0C'.(int)($objOrder->id_customer).'O'.(int)($objOrder->id);
                        }
                        // Define a temporary code
                        $cartrule->code = 'V0C'.(int)($objOrder->id_customer).'O'.(int)($objOrder->id);

                        $cartrule->quantity = 1;
                        $cartrule->quantity_per_user = 1;
                        // Specific to the customer
                        $cartrule->id_customer = $objOrder->id_customer;
                        $now = time();
                        $cartrule->date_from = date('Y-m-d H:i:s', $now);
                        // generateDiscount
                        if ($voucher_expiry_date) {
                            $cartrule->date_to = date('Y-m-d', strtotime($voucher_expiry_date)).' 23:59:59';
                        } else {
                            $cartrule->date_to = date('Y-m-d H:i:s', $now + (3600 * 24 * 365.25)); /* 1 year */
                        }
                        $cartrule->active = 1;
                        $cartrule->highlight = 1;
                        $cartrule->reduction_amount = $totalRefundedAmount;
                        $cartrule->reduction_tax = true;
                        $cartrule->minimum_amount_currency = $objOrder->id_currency;
                        $cartrule->reduction_currency = $objOrder->id_currency;

                        if (!$cartrule->add()) {
                            $this->errors[] = $this->errors('You cannot generate a voucher.');
                        } else {
                            $objOrderReturn->id_return_type = $cartrule->id;
                            $objOrderReturn->return_type = OrderReturn::RETURN_TYPE_CART_RULE;
                            $objOrderReturn->save();
                            // Update the voucher code and name
                            foreach ($language_ids as $id_lang) {
                                $cartrule->name[$id_lang] = 'V'.(int)($cartrule->id).'C'.(int)($objOrder->id_customer).'O'.$objOrder->id;
                            }
                            $cartrule->code = 'V'.(int)($cartrule->id).'C'.(int)($objOrder->id_customer).'O'.$objOrder->id;
                            if (!$cartrule->update()) {
                                $this->errors[] = $this->l('You cannot generate a voucher.');
                            } else {
                                $currency = $this->context->currency;
                                $params['{voucher_amount}'] = Tools::displayPrice($cartrule->reduction_amount, $currency, false);
                                $params['{voucher_num}'] = $cartrule->code;

                                @Mail::Send(
                                    (int)$objOrder->id_lang,
                                    'voucher',
                                    sprintf(Mail::l('New voucher for your order #%s', (int)$objOrder->id_lang), $objOrder->reference),
                                    $params,
                                    $customer->email,
                                    $customer->firstname.' '.$customer->lastname,
                                    null,
                                    null,
                                    null,
                                    null,
                                    _PS_MAIL_DIR_,
                                    true,
                                    (int)$objOrder->id_shop
                                );
                            }
                        }
                    }

                    // redirect with success if process completed successfully
                    $confirmation = 4;
                    if ($objRefundState->denied) {
                        $confirmation = 101;
                    } elseif ($objRefundState->refunded) {
                        $confirmation = 102;
                    }

                    if (Tools::isSubmit('submitRefundReqBookingsAndStay')) {
                        Tools::redirectAdmin(
                            self::$currentIndex.'&conf='.$confirmation.'&id_order_return='.$idOrderReturn.
                            '&vieworder_return&token='.$this->token
                        );
                    } else {
                        Tools::redirectAdmin(
                            self::$currentIndex.'&conf='.$confirmation.'&id_order='.$objOrder->id.
                            '&id_order_return='.$idOrderReturn.'&vieworder_return&token='.$this->token
                        );
                    }
                }

            }

            $this->display = 'view';
        }

        parent::postProcess();
    }

    public function setMedia()
    {
        parent::setMedia();

        if ($this->display == 'view') {
            $this->addJqueryUI('ui.tooltip', 'base', true);
            $this->removeJS(Media::getJqueryUIPath('ui.effect', 'base', false), false);

            $this->addJs(_MODULE_DIR_.$this->module->name.'/views/js/admin/wk_refund_request.js');
            $this->addCSS(_MODULE_DIR_.$this->module->name.'/views/css/admin/wk_refund_request.css');
        }
    }
}