<?php

namespace TFGraphics\SmartImport\Import;

use TFGraphics\SmartImport\Domain\DTO\ProductDTO;
use TFGraphics\SmartImport\Core\Exceptions\ImportException;

final class ValidationJob extends AbstractImportJob
{
    public function getName(): string
    {
        return 'ValidationJob';
    }

    protected function handle(ImportJobResult $result): ImportJobResult
    {
        $product = $result->getProduct();

        if ($product === null) {
            throw new \RuntimeException('ValidationJob requires an existing ProductDTO.');
        }

        $result->addLog(sprintf('[%s] validating product %s.', $this->getName(), $product->getName()));

        if (trim($product->getName()) === '') {
            throw new ImportException('Product name cannot be empty.');
        }

        if ($product->getPrice() !== null && $product->getPrice()->getAmount() < 0) {
            throw new ImportException('Product price cannot be negative.');
        }

        if ($product->getInventory() !== null && $product->getInventory()->getStockQuantity() < 0) {
            throw new ImportException('Inventory stock quantity cannot be negative.');
        }

        if ($product->getBarcode() === null && $product->getSku() === null) {
            throw new ImportException('Product must contain either a barcode or SKU.');
        }

        $result->addLog(sprintf('[%s] product %s validated successfully.', $this->getName(), $product->getId()));

        return $result;
    }
}