<?php
declare(strict_types=1);

namespace Esun\CustomerMessage\ViewModel;

use Esun\CustomerMessage\Model\ConversationService;
use Magento\Customer\Model\Session;
use Magento\Framework\View\Element\Block\ArgumentInterface;

class OrderUnread implements ArgumentInterface
{
    public function __construct(
        private readonly Session $session,
        private readonly ConversationService $conversations
    ) {
    }

    /**
     * @param int[] $orderIds
     * @return array<int, int>
     */
    public function getUnreadCounts(array $orderIds): array
    {
        return $this->conversations->getCustomerUnreadByOrderIds(
            (int)$this->session->getCustomerId(),
            $orderIds
        );
    }
}