<?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\Repository;

use Doctrine\DBAL\Connection;
use PrestaShop\PrestaShop\Core\Domain\Language\ValueObject\LanguageId;
use PrestaShop\PrestaShop\Core\Domain\Product\Exception\CannotUpdateProductException;
use PrestaShop\PrestaShop\Core\Domain\Product\ValueObject\LocalizedTags;
use PrestaShop\PrestaShop\Core\Domain\Product\ValueObject\ProductId;
use PrestaShop\PrestaShop\Core\Exception\CoreException;
use PrestaShopException;
use Tag;

/**
 * Accesses product Tag data source
 */
class TagRepository
{
    /**
     * @var Connection
     */
    private $connection;

    /**
     * @var string
     */
    private $dbPrefix;

    /**
     * @param Connection $connection
     * @param string $dbPrefix
     */
    public function __construct(Connection $connection, string $dbPrefix)
    {
        $this->connection = $connection;
        $this->dbPrefix = $dbPrefix;
    }

    public function addTagsByLanguage(ProductId $productId, LocalizedTags $localizedTags): void
    {
        $productIdValue = $productId->getValue();
        $langIdValue = $localizedTags->getLanguageId()->getValue();

        try {
            // assign new tags to product
            if (!Tag::addTags($langIdValue, $productIdValue, $localizedTags->getTags())) {
                throw new CannotUpdateProductException(
                    sprintf('Failed to update product #%d tags in lang #%d', $productIdValue, $langIdValue),
                    CannotUpdateProductException::FAILED_UPDATE_TAGS
                );
            }
        } catch (PrestaShopException) {
            throw new CoreException(
                sprintf('Error occurred when trying to add tags to product #%d', $productIdValue
                ));
        }
    }

    /**
     * @param ProductId $productId
     *
     * @throws CannotUpdateProductException
     * @throws CoreException
     */
    public function deleteAllTags(ProductId $productId): void
    {
        $productIdValue = $productId->getValue();

        try {
            if (!Tag::deleteTagsForProduct($productIdValue)) {
                throw new CannotUpdateProductException(
                    sprintf('Failed to delete all tags for product #%d', $productIdValue),
                    CannotUpdateProductException::FAILED_UPDATE_TAGS
                );
            }
        } catch (PrestaShopException) {
            throw new CoreException(
                sprintf('Error occurred when trying to delete product #%d tags', $productIdValue
                ));
        }
    }

    /**
     * @param ProductId $productId
     * @param LanguageId $languageId
     *
     * @throws CannotUpdateProductException
     * @throws CoreException
     */
    public function deleteTagsByLanguage(ProductId $productId, LanguageId $languageId): void
    {
        $productIdValue = $productId->getValue();
        $langIdValue = $languageId->getValue();

        try {
            if (!Tag::deleteProductTagsInLang($productIdValue, $langIdValue)) {
                throw new CannotUpdateProductException(
                    sprintf('Failed to delete product #%d previous tags in lang #%d', $productIdValue, $langIdValue),
                    CannotUpdateProductException::FAILED_UPDATE_TAGS
                );
            }
        } catch (PrestaShopException) {
            throw new CoreException(
                sprintf('Error occurred when trying to delete product #%d tags', $productIdValue
                ));
        }
    }

    /**
     * @param ProductId $productId
     *
     * @return array Localized tags for a product
     */
    public function getLocalizedProductTags(ProductId $productId): array
    {
        $qb = $this->connection->createQueryBuilder();
        $qb
            ->select('t.id_lang, t.name')
            ->from($this->dbPrefix . 'tag', 't')
            ->leftJoin('t', $this->dbPrefix . 'product_tag', 'pt', 'pt.id_tag = t.id_tag')
            ->where('pt.id_product = :productId')
            ->setParameter('productId', $productId->getValue())
        ;

        $result = $qb->executeQuery()->fetchAllAssociative();
        if (empty($result)) {
            return [];
        }

        $localizedTags = [];
        foreach ($result as $row) {
            $localizedTags[(int) $row['id_lang']][] = $row['name'];
        }

        return $localizedTags;
    }
}
