<?php
declare(strict_types=1);

namespace Esun\CustomerMessage\Plugin\Adminhtml;

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

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

    public function beforeSetLayout(View $subject, LayoutInterface $layout): array
    {
        $order = $subject->getOrder();
        if ($order && (int)$order->getCustomerId()) {
            $subject->addButton('esun_order_messages', [
                'label' => __('Messages'),
                'class' => 'esun-order-messages',
                'onclick' => "setLocation('" . $this->url->getUrl('esun_customer_message/message/index', ['order_id' => (int)$order->getId()]) . "')",
            ]);
        }

        return [$layout];
    }
}