<?php
declare(strict_types=1);

namespace Esun\FreeGift\Plugin\Quote;

use Esun\FreeGift\Model\Config;
use Esun\FreeGift\Model\InternalAddGuard;
use Magento\Catalog\Model\Product;
use Magento\Framework\Exception\LocalizedException;
use Magento\Quote\Model\Quote;

class AddProductPlugin
{
    public function __construct(
        private readonly Config $config,
        private readonly InternalAddGuard $internalAddGuard
    ) {
    }

    public function beforeAddProduct(
        Quote $subject,
        Product $product,
        mixed $request = null,
        string $processMode = \Magento\Catalog\Model\Product\Type\AbstractType::PROCESS_MODE_FULL
    ): ?array {
        $storeId = (int)($subject->getStoreId() ?: $product->getStoreId());

        if ($this->config->isGiftSku((string)$product->getSku(), $storeId)
            && !$this->internalAddGuard->isAllowed()
        ) {
            throw new LocalizedException(__('This promotional gift cannot be purchased separately.'));
        }

        return null;
    }
}