<?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\CatalogPriceRule\Repository;

use Doctrine\DBAL\Connection;
use Doctrine\DBAL\Query\QueryBuilder;
use PrestaShop\PrestaShop\Core\Domain\Language\ValueObject\LanguageId;
use PrestaShop\PrestaShop\Core\Domain\Product\ValueObject\ProductId;

class CatalogPriceRuleRepository
{
    /**
     * @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;
    }

    /**
     * @return array<int, array<string, string|null>>
     */
    public function getByProductId(
        ProductId $productId,
        LanguageId $langId,
        ?int $limit = null,
        ?int $offset = null
    ): array {
        $qb = $this->getCatalogPriceRulesQueryBuilder($langId, $productId)
            ->select('
                spr.id_specific_price_rule,
                spr.name as specific_price_rule_name,
                currency_lang.name as currency_name,
                currency.iso_code as currency_iso,
                country_lang.name as lang_name,
                shop.name as shop_name,
                group_lang.name as group_name,
                spr.from_quantity,
                spr.reduction_type,
                spr.reduction,
                spr.reduction_tax,
                spr.from,
                spr.to
            ')
            ->setFirstResult($offset ?? 0)
            ->setMaxResults($limit)
        ;

        return $qb->executeQuery()->fetchAllAssociative();
    }

    /**
     * @param ProductId $productId
     * @param LanguageId $langId
     *
     * @return int
     */
    public function countByProductId(ProductId $productId, LanguageId $langId): int
    {
        $qb = $this->getCatalogPriceRulesQueryBuilder($langId, $productId)
            ->select('COUNT(spr.id_specific_price_rule) as total_catalog_price_rules');

        return (int) $qb->executeQuery()->fetchAssociative()['total_catalog_price_rules'];
    }

    /**
     * @param LanguageId $langId
     * @param ProductId $productId
     *
     * @return QueryBuilder
     */
    private function getCatalogPriceRulesQueryBuilder(LanguageId $langId, ProductId $productId): QueryBuilder
    {
        return $this->connection->createQueryBuilder()
            ->from($this->dbPrefix . 'specific_price_rule', 'spr')
            ->leftJoin(
                'spr',
                $this->dbPrefix . 'currency_lang',
                'currency_lang',
                'spr.id_currency = currency_lang.id_currency AND currency_lang.id_lang = :langId'
            )
            ->leftJoin(
                'spr',
                $this->dbPrefix . 'currency',
                'currency',
                'spr.id_currency = currency.id_currency'
            )
            ->leftJoin(
                'spr',
                $this->dbPrefix . 'shop',
                'shop',
                'spr.id_shop = shop.id_shop'
            )
            ->leftJoin(
                'spr',
                $this->dbPrefix . 'country_lang',
                'country_lang',
                'spr.id_country = country_lang.id_country AND country_lang.id_lang = :langId'
            )
            ->leftJoin(
                'spr',
                $this->dbPrefix . 'group_lang',
                'group_lang',
                'spr.id_group = group_lang.id_group AND group_lang.id_lang = :langId'
            )
            ->innerJoin(
                'spr',
                $this->dbPrefix . 'specific_price',
                'sp',
                'spr.id_specific_price_rule = sp.id_specific_price_rule AND (id_product = :productId OR id_product = 0)'
            )
            ->orderBy('spr.id_specific_price_rule', 'asc')
            ->setParameter('langId', $langId->getValue())
            ->setParameter('productId', $productId->getValue());
    }
}