ImageBuilder.php

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<?php
declare(strict_types=1);

namespace Magento\Catalog\Block\Product;

use Magento\Catalog\Helper\ImageFactory as HelperFactory;
use Magento\Catalog\Model\Product;

class ImageBuilder
{
    protected $imageFactory;

    protected $helperFactory;

    protected $product;

    protected $imageId;

    protected $attributes = [];

    public function __construct(
        HelperFactory $helperFactory,
        ImageFactory $imageFactory
    ) {
        $this->helperFactory = $helperFactory;
        $this->imageFactory = $imageFactory;
    }

    public function setProduct(Product $product)
    {
        $this->product = $product;
        return $this;
    }

    public function setImageId($imageId)
    {
        $this->imageId = $imageId;
        return $this;
    }

    public function setAttributes(array $attributes)
    {
        $this->attributes = $attributes;
        return $this;
    }

    protected function getCustomAttributes()
    {
        $result = [];
        foreach ($this->attributes as $name => $value) {
            $result[] = $name . '="' . $value . '"';
        }
        return !empty($result) ? implode(' ', $result) : '';
    }

    protected function getRatio(\Magento\Catalog\Helper\Image $helper)
    {
        $width = $helper->getWidth();
        $height = $helper->getHeight();
        if ($width && $height) {
            return $height / $width;
        }
        return 1;
    }

    public function create(Product $product = null, string $imageId = null, array $attributes = null)
    {
        $product = $product ?? $this->product;
        $imageId = $imageId ?? $this->imageId;
        $attributes = $attributes ?? $this->attributes;
        return $this->imageFactory->create($product, $imageId, $attributes);
    }
}