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<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
declare(strict_types=1);

namespace Magento\Sales\Model\Order\Invoice;

use Magento\Store\Model\ScopeInterface;
use Magento\Framework\UrlInterface;
use Magento\Framework\App\Config\ScopeConfigInterface;

/**
 * Get Custom Logo File for Invoice HTML print
 */
class GetLogoFile
{
    private const XML_PATH_SALES_IDENTITY_LOGO_HTML = 'sales/identity/logo_html';
    private const LOGO_BASE_DIR = 'sales/store/logo_html/';

    /**
     * @var ScopeConfigInterface
     */
    private $scopeConfig;

    /**
     * @var UrlInterface
     */
    private $urlBuilder;

    /**
     * @param ScopeConfigInterface $scopeConfig
     * @param UrlInterface $urlBuilder
     */
    public function __construct(
        ScopeConfigInterface $scopeConfig,
        UrlInterface $urlBuilder
    ) {
        $this->scopeConfig = $scopeConfig;
        $this->urlBuilder = $urlBuilder;
    }

    /**
     * Return Custom Invoice Logo file url if configured in admin
     *
     * @return string|null
     */
    public function execute(): ?string
    {
        $invoiceLogoPath = $this->getIdentityLogoHtml();
        if (!$invoiceLogoPath) {
            return null;
        }

        return sprintf(
            "%s%s%s",
            $this->urlBuilder->getBaseUrl(['_type' => UrlInterface::URL_TYPE_MEDIA]),
            self::LOGO_BASE_DIR,
            $invoiceLogoPath
        );
    }

    /**
     * Get Admin Configuration for Invoice Logo HTML
     *
     * @return null|string
     */
    private function getIdentityLogoHtml(): ?string
    {
        return $this->scopeConfig->getValue(
            self::XML_PATH_SALES_IDENTITY_LOGO_HTML,
            ScopeInterface::SCOPE_STORE,
            null
        );
    }
}