<?php
declare(strict_types=1);

namespace Esun\VatInvoice\Plugin\Adminhtml;

use Magento\Backend\Model\UrlInterface;
use Magento\Framework\View\LayoutInterface;
use Magento\Sales\Block\Adminhtml\Order\Invoice\View;

class InvoiceViewButton
{
    public function __construct(private readonly UrlInterface $url)
    {
    }

    public function beforeSetLayout(View $subject, LayoutInterface $layout): array
    {
        $invoice = $subject->getInvoice();
        if ($invoice && $invoice->getId()) {
            $url = $this->url->getUrl(
                'esun_vatinvoice/invoice/printAction',
                ['invoice_id' => (int)$invoice->getId()]
            );
            $subject->addButton('esun_vat_invoice', [
                'label' => __('Download VAT Invoice'),
                'class' => 'print',
                'onclick' => "setLocation('" . $url . "')",
            ], 0, 95);
        }

        return [$layout];
    }
}