inventorymanagementsourcebuilder.php

<?php
 
namespace Bitrix\Catalog\Url;
 
class InventoryManagementSourceBuilder
{
    private const INVENTORY_MANAGEMENT_SOURCE_PARAM_NAME = 'inventoryManagementSource';
 
    private static ?InventoryManagementSourceBuilder $instance = null;
    private ?string $inventoryManagementSource;
 
    public static function getInstance(): InventoryManagementSourceBuilder
    {
        if (!self::$instance)
        {
            self::$instance = new self();
        }
 
        return self::$instance;
    }
 
    public function __construct()
    {
        $param =
            \Bitrix\Main\Context::getCurrent()
                ->getRequest()
                ->get(self::INVENTORY_MANAGEMENT_SOURCE_PARAM_NAME)
        ;
 
        $this->inventoryManagementSource = $param ? urlencode((string)$param) : null;
    }
 
    public function getInventoryManagementSource(): ?string
    {
        return $this->inventoryManagementSource;
    }
 
    public function addInventoryManagementSourceParam(string $uri): string
    {
        if (!$this->inventoryManagementSource)
        {
            return $uri;
        }
 
        $uriEntity = new \Bitrix\Main\Web\Uri($uri);
        $uriEntity->addParams([self::INVENTORY_MANAGEMENT_SOURCE_PARAM_NAME => $this->inventoryManagementSource]);
 
        return $uriEntity->getUri();
    }
}