Product

<?php

namespace Newance\Import\Service;

use Magento\Catalog\Api\Data\ProductExtensionFactory;
use Magento\Catalog\Api\ProductAttributeRepositoryInterface;
use Magento\Catalog\Api\ProductRepositoryInterface;
use Magento\CatalogInventory\Api\Data\StockItemInterface;
use Magento\ConfigurableProduct\Api\Data\OptionInterface;
use Newance\Import\Helper\Attribute;
use Magento\Framework\App\ObjectManager;
use Magento\Catalog\Model\ProductFactory;

class ProductImporter
{
    /**
     * @var Attribute
     */
    private $attributeHelper;
    /**
     * @var ProductRepositoryInterface
     */
    private $productRepository;
    /**
     * @var StockItemInterface
     */
    private $stockItem;

    /**
     * @var ProductAttributeRepositoryInterface
     */
    private $productAttributeRepository;
    /**
     * @var OptionInterface
     */
    private $option;

    private $productFactory;

    private $productExtensionFactory;

    /**
     * ProductImporter constructor.
     * @param Attribute $attributeHelper
     * @param ProductRepositoryInterface $productRepository
     * @param ProductFactory $productFactory
     * @param StockItemInterface $stockItem
     * @param ProductAttributeRepositoryInterface $productAttributeRepository
     * @param OptionInterface $option
     * @param ProductExtensionFactory $productExtensionFactory
     */
    public function __construct(Attribute $attributeHelper,
                                ProductRepositoryInterface $productRepository,
                                ProductFactory $productFactory,
                                StockItemInterface $stockItem,
                                ProductAttributeRepositoryInterface $productAttributeRepository,
                                OptionInterface $option,
                                ProductExtensionFactory $productExtensionFactory
)
    {
        $this->attributeHelper = $attributeHelper;
        $this->productRepository = $productRepository;
        $this->productFactory = $productFactory;
        $this->stockItem = $stockItem;
        $this->productAttributeRepository = $productAttributeRepository;
        $this->option = $option;
        $this->productExtensionFactory = $productExtensionFactory;
    }

    /**
     * Import products
     *
     * @param $resultSet
     * @throws \Magento\Framework\Exception\LocalizedException
     */
    public function import($resultSet)
    {
        foreach($resultSet as $result) {
            $product = $this->productFactory->create();

            $type = $result[2];
            $article = $result[1];
            $size = $result[3];
            $color = $result[4];

            $sku = $article.'-'.$color.'-'.$size;
            $name = $article . ' - ' . $color . ' - ' . $type . ' - ' . $size;
            $price = (float) isset($result[6]) ? $result[6] : 0;

            $product->setSku($sku);
            $product->setName($name);
            $product->setPrice($price);
            $product->setTypeId('simple');
            $product->setAttributeSetId(9); // nomo attribute set ID
            $product->setVisibility(1);
            $product->setWeight(0.00);

            if ( ! empty($size)) {
                $product->setCustomAttribute('nomo_maat', $this->attributeHelper->createOrGetId('nomo_maat', $size));
            }

            if ( ! empty($color)) {
                $product->setCustomAttribute('color', $this->attributeHelper->createOrGetId('color', $color));
            }

            if ( ! empty($type)) {
                $product->setCustomAttribute('nomo_type', $this->attributeHelper->createOrGetId('nomo_type', $type));
            }

            $productExtension = $this->productExtensionFactory->create();
            $this->stockItem->setItemId(1);
            $this->stockItem->setQty(100);
            $this->stockItem->setUseConfigManageStock(true);
            $this->stockItem->setIsInStock(true);
            $this->stockItem->setIsQtyDecimal(false);
            $this->stockItem->setUseConfigMinQty(true);
            $this->stockItem->setMinQty(0);
            $this->stockItem->setUseConfigMinSaleQty(0);
            $this->stockItem->setMinSaleQty(0);
            $product->setExtensionAttributes($productExtension->setStockItem($this->stockItem));

            $product->setStockData(['qty' => 100, 'is_in_stock' => 1]);
            $product->setQuantityAndStockStatus(['qty' => 100, 'is_in_stock' => 1]);

            $this->productRepository->save($product);
        }
    }
}