<?php
/**
 * For the full copyright and license information, please view the
 * docs/licenses/LICENSE.txt file that was distributed with this source code.
 */

declare(strict_types=1);

namespace PrestaShop\PrestaShop\Adapter\Product\Validate;

use PrestaShop\PrestaShop\Adapter\AbstractObjectModelValidator;
use PrestaShop\PrestaShop\Core\Domain\Configuration\ShopConfigurationInterface;
use PrestaShop\PrestaShop\Core\Domain\Product\Exception\ProductConstraintException;
use PrestaShop\PrestaShop\Core\Domain\Product\Exception\ProductException;
use PrestaShop\PrestaShop\Core\Domain\Product\Pack\Exception\ProductPackConstraintException;
use PrestaShop\PrestaShop\Core\Domain\Product\Stock\Exception\ProductStockConstraintException;
use PrestaShop\PrestaShop\Core\Exception\CoreException;
use Product;

/**
 * Validates product field using legacy object model
 */
class ProductValidator extends AbstractObjectModelValidator
{
    /**
     * @var ShopConfigurationInterface
     */
    private $configuration;

    public function __construct(ShopConfigurationInterface $configuration)
    {
        $this->configuration = $configuration;
    }

    /**
     * This method is specific for product creation only.
     *
     * @param Product $product
     *
     * @throws CoreException
     */
    public function validateCreation(Product $product): void
    {
        $this->validateProductType($product);
        $this->validateProductLocalizedProperty(
            $product,
            'name',
            ProductConstraintException::INVALID_NAME
        );
    }

    /**
     * Validates Product object model properties using legacy validation
     *
     * @param Product $product
     *
     * @throws CoreException
     * @throws ProductConstraintException
     * @throws ProductPackConstraintException
     * @throws ProductStockConstraintException
     * @throws ProductConstraintException
     * @throws ProductException
     */
    public function validate(Product $product): void
    {
        $this->validateProductType($product);
        $this->validateCustomizability($product);
        $this->validateBasicInfo($product);
        $this->validateOptions($product);
        $this->validateDetails($product);
        $this->validateShipping($product);
        $this->validateStock($product);
        $this->validateSeo($product);
        $this->validatePrices($product);
        $this->validateOnlineRequirement($product);
    }

    /**
     * @param Product $product
     *
     * @throws ProductConstraintException
     */
    private function validateProductType(Product $product): void
    {
        $this->validateProductProperty($product, 'product_type', ProductConstraintException::INVALID_PRODUCT_TYPE);
    }

    /**
     * @param Product $product
     *
     * @throws ProductConstraintException
     */
    private function validateCustomizability(Product $product): void
    {
        $this->validateProductProperty($product, 'customizable', ProductConstraintException::INVALID_CUSTOMIZABILITY);
        $this->validateProductProperty($product, 'text_fields', ProductConstraintException::INVALID_TEXT_FIELDS_COUNT);
        $this->validateProductProperty($product, 'uploadable_files', ProductConstraintException::INVALID_UPLOADABLE_FILES_COUNT);
    }

    /**
     * @param Product $product
     *
     * @throws ProductConstraintException
     */
    private function validateBasicInfo(Product $product): void
    {
        $this->validateProductLocalizedProperty($product, 'name', ProductConstraintException::INVALID_NAME);
        $this->validateDescriptionForEmbeddedHtml($product, 'description', ProductConstraintException::INVALID_DESCRIPTION_CONTAINS_EMBEDDED_HTML);
        $this->validateProductLocalizedProperty($product, 'description', ProductConstraintException::INVALID_DESCRIPTION);
        $this->validateDescriptionForEmbeddedHtml($product, 'description_short', ProductConstraintException::INVALID_DESCRIPTION_CONTAINS_EMBEDDED_HTML);
        $this->validateProductLocalizedProperty($product, 'description_short', ProductConstraintException::INVALID_SHORT_DESCRIPTION);
    }

    /**
     * Checks if any localized value of the given description field contains embedded HTML elements
     * (iframe, frame, form, input, embed, object) while the "Allow iframes on HTML fields" option is disabled.
     * If so, throws a ProductConstraintException with a dedicated error code before the generic
     * CleanHtml validation runs, so the caller can display a more specific error message.
     *
     * @param Product $product
     * @param string $fieldName
     * @param int $errorCode
     *
     * @throws ProductConstraintException
     */
    private function validateDescriptionForEmbeddedHtml(Product $product, string $fieldName, int $errorCode): void
    {
        if ((bool) $this->configuration->get('PS_ALLOW_HTML_IFRAME')) {
            return;
        }

        $values = $product->{$fieldName};
        if (!is_array($values)) {
            return;
        }

        foreach ($values as $value) {
            if (is_string($value) && preg_match('/<[\s]*(i?frame|form|input|embed|object)/ims', $value)) {
                throw new ProductConstraintException(
                    sprintf('Product %s contains embedded HTML elements while iframes are disabled.', $fieldName),
                    $errorCode
                );
            }
        }
    }

    /**
     * @param Product $product
     *
     * @throws CoreException
     */
    private function validateOptions(Product $product): void
    {
        $this->validateProductProperty($product, 'available_for_order', ProductConstraintException::INVALID_AVAILABLE_FOR_ORDER);
        $this->validateProductProperty($product, 'online_only', ProductConstraintException::INVALID_ONLINE_ONLY);
        $this->validateProductProperty($product, 'show_price', ProductConstraintException::INVALID_SHOW_PRICE);
        $this->validateProductProperty($product, 'id_manufacturer', ProductConstraintException::INVALID_MANUFACTURER_ID);
        $this->validateProductProperty($product, 'visibility', ProductConstraintException::INVALID_VISIBILITY);
        $this->validateProductProperty($product, 'condition', ProductConstraintException::INVALID_CONDITION);
        $this->validateProductProperty($product, 'show_condition', ProductConstraintException::INVALID_SHOW_CONDITION);
        $this->validateProductProperty($product, 'active', ProductConstraintException::INVALID_STATUS);
    }

    /**
     * @param Product $product
     *
     * @throws ProductConstraintException
     */
    private function validateDetails(Product $product): void
    {
        $this->validateProductProperty($product, 'ean13', ProductConstraintException::INVALID_GTIN);
        $this->validateProductProperty($product, 'isbn', ProductConstraintException::INVALID_ISBN);
        $this->validateProductProperty($product, 'mpn', ProductConstraintException::INVALID_MPN);
        $this->validateProductProperty($product, 'reference', ProductConstraintException::INVALID_REFERENCE);
        $this->validateProductProperty($product, 'upc', ProductConstraintException::INVALID_UPC);
    }

    /**
     * @param Product $product
     *
     * @throws ProductConstraintException
     */
    private function validateShipping(Product $product): void
    {
        $this->validateProductProperty($product, 'width', ProductConstraintException::INVALID_WIDTH);
        $this->validateProductProperty($product, 'height', ProductConstraintException::INVALID_HEIGHT);
        $this->validateProductProperty($product, 'depth', ProductConstraintException::INVALID_DEPTH);
        $this->validateProductProperty($product, 'weight', ProductConstraintException::INVALID_WEIGHT);
        $this->validateProductProperty($product, 'additional_shipping_cost', ProductConstraintException::INVALID_ADDITIONAL_SHIPPING_COST);
        $this->validateProductProperty($product, 'additional_delivery_times', ProductConstraintException::INVALID_ADDITIONAL_DELIVERY_TIME_NOTES_TYPE);
        $this->validateProductLocalizedProperty($product, 'delivery_in_stock', ProductConstraintException::INVALID_DELIVERY_TIME_IN_STOCK_NOTES);
        $this->validateProductLocalizedProperty($product, 'delivery_out_stock', ProductConstraintException::INVALID_DELIVERY_TIME_OUT_OF_STOCK_NOTES);
    }

    /**
     * @param Product $product
     *
     * @throws ProductConstraintException
     */
    private function validatePrices(Product $product): void
    {
        $this->validateProductProperty($product, 'price', ProductConstraintException::INVALID_PRICE);
        $this->validateProductProperty($product, 'unit_price', ProductConstraintException::INVALID_UNIT_PRICE);
        $this->validateProductProperty($product, 'unity', ProductConstraintException::INVALID_UNITY);
        $this->validateProductProperty($product, 'ecotax', ProductConstraintException::INVALID_ECOTAX);
        $this->validateProductProperty($product, 'wholesale_price', ProductConstraintException::INVALID_WHOLESALE_PRICE);
    }

    /**
     * @param Product $product
     *
     * @throws ProductConstraintException
     * @throws ProductPackConstraintException
     * @throws ProductStockConstraintException
     */
    private function validateStock(Product $product): void
    {
        $this->validateProductProperty($product, 'low_stock_threshold', ProductConstraintException::INVALID_LOW_STOCK_THRESHOLD);
        $this->validateProductProperty($product, 'low_stock_alert', ProductConstraintException::INVALID_LOW_STOCK_ALERT);
        $this->validateProductProperty($product, 'available_date', ProductConstraintException::INVALID_AVAILABLE_DATE);
        $this->validateProductProperty($product, 'minimal_quantity', ProductConstraintException::INVALID_MINIMAL_QUANTITY);
        $this->validateProductLocalizedProperty($product, 'available_later', ProductConstraintException::INVALID_AVAILABLE_LATER);
        $this->validateProductLocalizedProperty($product, 'available_now', ProductConstraintException::INVALID_AVAILABLE_NOW);
        $this->validateObjectModelProperty(
            $product,
            'location',
            ProductStockConstraintException::class,
            ProductStockConstraintException::INVALID_LOCATION
        );
    }

    /**
     * @param Product $product
     */
    private function validateSeo(Product $product): void
    {
        $this->validateProductProperty($product, 'redirect_type', ProductConstraintException::INVALID_REDIRECT_TYPE);
        $this->validateProductProperty($product, 'id_type_redirected', ProductConstraintException::INVALID_REDIRECT_TARGET);
        $this->validateProductLocalizedProperty($product, 'meta_description', ProductConstraintException::INVALID_META_DESCRIPTION);
        $this->validateProductLocalizedProperty($product, 'meta_title', ProductConstraintException::INVALID_META_TITLE);
        $this->validateProductLocalizedProperty($product, 'link_rewrite', ProductConstraintException::INVALID_LINK_REWRITE);
    }

    /**
     * @param Product $product
     * @param string $propertyName
     * @param int $errorCode
     *
     * @throws ProductConstraintException
     */
    private function validateProductProperty(Product $product, string $propertyName, int $errorCode = 0): void
    {
        $this->validateObjectModelProperty(
            $product,
            $propertyName,
            ProductConstraintException::class,
            $errorCode
        );
    }

    /**
     * @param Product $product
     * @param string $propertyName
     * @param int $errorCode
     *
     * @throws ProductConstraintException
     */
    private function validateProductLocalizedProperty(Product $product, string $propertyName, int $errorCode = 0): void
    {
        $this->validateObjectModelLocalizedProperty(
            $product,
            $propertyName,
            ProductConstraintException::class,
            $errorCode
        );
    }

    /**
     * To be online a product has some minimum data to be set
     *
     * @param Product $product
     */
    private function validateOnlineRequirement(Product $product): void
    {
        if (!$product->active) {
            return;
        }

        if (empty($product->name) || empty($product->name[$this->configuration->get('PS_LANG_DEFAULT')])) {
            throw new ProductConstraintException('Missing name to be online.', ProductConstraintException::INVALID_ONLINE_DATA);
        }
    }
}