stemcell/app/code/Stemcell/Checkout/Block/Cart/Item/Renderer.php

<?php

namespace Stemcell\Checkout\Block\Cart\Item;

use Magento\Catalog\Model\Product\Configuration\Item\ItemResolverInterface;
use Magento\Customer\Model\Session;
use Magento\Framework\Data\Collection;
use Magento\Framework\Data\CollectionFactory;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\Pricing\PriceCurrencyInterface;
use Magento\Framework\View\Element\Message\InterpretationStrategyInterface;
use Stemcell\Customer\Model\Lab;
use Stemcell\Customer\Model\LabFactory;
use Stemcell\Customer\Model\LabRepository;
use Stemcell\Customer\Model\Salesperson;
use Stemcell\Customer\Model\ResourceModel;
use Stemcell\Customer\Model\SalespersonRepository;

class Renderer extends \Magento\Checkout\Block\Cart\Item\Renderer
{
    protected ResourceModel\Lab\Collection $labCollection;
    protected ResourceModel\Salesperson\Collection $salespersonCollection;

    protected  Session $customerSession;

    protected CollectionFactory $baseCollectionFactory;

    protected ?Lab $lab = null;

    /**
     * @param \Magento\Framework\View\Element\Template\Context $context
     * @param \Magento\Catalog\Helper\Product\Configuration $productConfig
     * @param \Magento\Checkout\Model\Session $checkoutSession
     * @param \Magento\Catalog\Block\Product\ImageBuilder $imageBuilder
     * @param \Magento\Framework\Url\Helper\Data $urlHelper
     * @param \Magento\Framework\Message\ManagerInterface $messageManager
     * @param PriceCurrencyInterface $priceCurrency
     * @param \Magento\Framework\Module\Manager $moduleManager
     * @param InterpretationStrategyInterface $messageInterpretationStrategy
     * @param ResourceModel\Lab\Collection $labCollection
     * @param ResourceModel\Salesperson\Collection $salespersonCollection
     * @param array $data
     * @param ItemResolverInterface|null $itemResolver
     */
    public function __construct(
        \Magento\Framework\View\Element\Template\Context $context,
        \Magento\Catalog\Helper\Product\Configuration $productConfig,
        \Magento\Checkout\Model\Session $checkoutSession,
        \Magento\Catalog\Block\Product\ImageBuilder $imageBuilder,
        \Magento\Framework\Url\Helper\Data $urlHelper,
        \Magento\Framework\Message\ManagerInterface $messageManager,
        PriceCurrencyInterface $priceCurrency,
        \Magento\Framework\Module\Manager $moduleManager,
        InterpretationStrategyInterface $messageInterpretationStrategy,
        ResourceModel\Lab\Collection $labCollection,
        ResourceModel\Salesperson\Collection $salespersonCollection,
        CollectionFactory $baseCollectionFactory,
        Session $customerSession,
        array $data = [],
        ItemResolverInterface $itemResolver = null
    )
    {
        parent::__construct(
            $context,
            $productConfig,
            $checkoutSession,
            $imageBuilder,
            $urlHelper,
            $messageManager,
            $priceCurrency,
            $moduleManager,
            $messageInterpretationStrategy,
            $data,
            $itemResolver
        );
        $this->customerSession = $customerSession;
        $this->baseCollectionFactory = $baseCollectionFactory;
        $this->labCollection = $labCollection;
        $this->salespersonCollection = $salespersonCollection;
    }

    public function getLabs(): Collection|ResourceModel\Lab\Collection
    {
        if ($this->customerSession->getCustomerId()) {
            $this->labCollection->addFieldToFilter('main_table.customer_id', $this->customerSession->getCustomerId())
                ->getSelect()
                ->joinLeft('salesperson', 'salesperson.salesperson_id=main_table.salesperson_id', ['salesperson'=>'salesperson.name']);
            return $this->labCollection;
        }

        return $this->baseCollectionFactory->create()->setItemObjectClass(Lab::class);
    }

    /**
     * @return \Stemcell\Customer\Api\Data\LabInterface|Lab
     */
    public function getLab()
    {
        try {
            if ($labId = $this->_item->getData('lab_id')) {
                /* @var $labRepository LabRepository */
                $labRepository = \Magento\Framework\App\ObjectManager::getInstance()->get(LabRepository::class);
                /* @var $salespersonRepository SalespersonRepository */
                $salespersonRepository = \Magento\Framework\App\ObjectManager::getInstance()->get(SalespersonRepository::class);
                $this->lab = $labRepository->get($labId);
                $salesperson = $salespersonRepository->get($this->lab->getSalespersonId());
                $this->lab->setData('salesperson', $salesperson->getName());
                return $this->lab;
            }
        } catch (LocalizedException $e) {
        }
        /* @var $labFactory LabFactory */
        $labFactory = \Magento\Framework\App\ObjectManager::getInstance()->get(LabFactory::class);
        return $labFactory->create();
    }

    public function getSalesperson() {
        if ($this->customerSession->getCustomerId()) {
            $this->salespersonCollection->addFieldToFilter('customer_id', $this->customerSession->getCustomerId());
            return $this->salespersonCollection;
        }

        return $this->baseCollectionFactory->create()->setItemObjectClass(Salesperson::class);
    }
}