compatibleformat.php

См. документацию.

<?php
namespace Bitrix\Sale\Discount\Result;
 
use Bitrix\Main\Localization\Loc,
    Bitrix\Sale\Discount;
 
Loc::loadMessages(__FILE__);
 
final class CompatibleFormat
{
    public static function createResultDescription($newPrice, $oldPrice, $currency)
    {
        return array(
            Discount\Formatter::prepareRow(
                Discount\Formatter::TYPE_VALUE,
                array(
                    'VALUE_TYPE' => Discount\Formatter::VALUE_TYPE_CURRENCY,
                    'VALUE' => abs($oldPrice - $newPrice),
                    'VALUE_UNIT' => $currency,
                    'VALUE_ACTION' => (
                        $oldPrice > $newPrice
                        ? Discount\Formatter::VALUE_ACTION_DISCOUNT
                        : Discount\Formatter::VALUE_ACTION_EXTRA
                    )
                )
            )
        );
    }

    public static function getStepResult(array $currentOrder, array $oldOrder)
    {
        $result = array();
        if (isset($oldOrder['PRICE_DELIVERY']) && isset($currentOrder['PRICE_DELIVERY']))
        {
            if ($oldOrder['PRICE_DELIVERY'] != $currentOrder['PRICE_DELIVERY'])
            {
                $descr = self::createResultDescription(
                    $currentOrder['PRICE_DELIVERY'],
                    $oldOrder['PRICE_DELIVERY'],
                    $oldOrder['CURRENCY']
                );
                $result['DELIVERY'] = array(
                    'APPLY' => 'Y',
                    'DELIVERY_ID' => (isset($currentOrder['DELIVERY_ID']) ? $currentOrder['DELIVERY_ID'] : false),
                    'SHIPMENT_CODE' => (isset($currentOrder['SHIPMENT_CODE']) ? $currentOrder['SHIPMENT_CODE'] : false),
                    'DESCR' => implode(', ', Discount\Formatter::formatList($descr)),
                    'DESCR_DATA' => $descr
                );
                unset($descr);
            }
        }
        if (!empty($oldOrder['BASKET_ITEMS']) && !empty($currentOrder['BASKET_ITEMS']))
        {
            foreach ($oldOrder['BASKET_ITEMS'] as $basketCode => $item)
            {
                if (!isset($currentOrder['BASKET_ITEMS'][$basketCode]))
                    continue;
                if ($item['PRICE'] != $currentOrder['BASKET_ITEMS'][$basketCode]['PRICE'])
                {
                    if (!isset($result['BASKET']))
                        $result['BASKET'] = array();
                    $descr = self::createResultDescription(
                        $currentOrder['BASKET_ITEMS'][$basketCode]['PRICE'],
                        $item['PRICE'],
                        $oldOrder['CURRENCY']
                    );
                    $result['BASKET'][$basketCode] = array(
                        'APPLY' => 'Y',
                        'DESCR' => implode(', ', Discount\Formatter::formatList($descr)),
                        'DESCR_DATA' => $descr,
                        'MODULE' => $currentOrder['BASKET_ITEMS'][$basketCode]['MODULE'],
                        'PRODUCT_ID' => $currentOrder['BASKET_ITEMS'][$basketCode]['PRODUCT_ID'],
                        'BASKET_ID' => (
                            isset($currentOrder['BASKET_ITEMS'][$basketCode]['ID'])
                            ? $currentOrder['BASKET_ITEMS'][$basketCode]['ID']
                            : $basketCode
                        )
                    );
                    unset($descr);
                }
            }
        }
        return $result;
    }

    public static function getDiscountDescription(array $stepResult)
    {
        $result = array();
        if (!empty($stepResult['BASKET']))
        {
            $result['BASKET'] = array(
                0 => Discount\Formatter::prepareRow(
                    Discount\Formatter::TYPE_SIMPLE,
                    Loc::getMessage('BX_SALE_DISCOUNT_MESS_SIMPLE_DESCRIPTION_BASKET')
                )
            );
        }
        if (!empty($stepResult['DELIVERY']))
        {
            $result['DELIVERY'] = array(
                0 => Discount\Formatter::prepareRow(
                    Discount\Formatter::TYPE_SIMPLE,
                    Loc::getMessage('BX_SALE_DISCOUNT_MESS_SIMPLE_DESCRIPTION_DELIVERY')
                )
            );
        }
        if (empty($result))
        {
            $result['BASKET'] = array(
                0 => Discount\Formatter::prepareRow(
                    Discount\Formatter::TYPE_SIMPLE,
                    Loc::getMessage('BX_SALE_DISCOUNT_MESS_SIMPLE_DESCRIPTION_UNKNOWN')
                )
            );
        }
 
        return $result;
    }
}