<?php
/**
 * 2007-2019 PrestaShop and Contributors
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://www.prestashop.com for more information.
 *
 * @author    PrestaShop SA <contact@prestashop.com>
 * @copyright 2007-2019 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * International Registered Trademark & Property of PrestaShop SA
 */

namespace PrestaShop\PrestaShop\Core\Domain\SqlManagement;

use PrestaShop\PrestaShop\Core\Domain\SqlManagement\Exception\SqlManagementConstraintException;
use PrestaShop\PrestaShop\Core\Domain\SqlManagement\ValueObject\DatabaseTableField;

/**
 * Class DatabaseTableFields stores fields of single database table.
 */
class DatabaseTableFields
{
    /**
     * @var DatabaseTableField[]
     */
    private $fields;

    /**
     * @param DatabaseTableField[] $fields
     *
     * @throws SqlManagementConstraintException
     */
    public function __construct(array $fields)
    {
        $this->setFields($fields);
    }

    /**
     * @return DatabaseTableField[]
     */
    public function getFields()
    {
        return $this->fields;
    }

    /**
     * @param DatabaseTableField[] $fields
     *
     * @return self
     *
     * @throws SqlManagementConstraintException
     */
    private function setFields(array $fields)
    {
        foreach ($fields as $field) {
            if (!$field instanceof DatabaseTableField) {
                throw new SqlManagementConstraintException(
                    sprintf(
                        'Invalid database field %s supplied. Expected instance of %s',
                        var_export($field, true),
                        DatabaseTableField::class
                    ),
                    SqlManagementConstraintException::INVALID_DATABASE_TABLE_FIELD
                );
            }
        }

        $this->fields = $fields;

        return $this;
    }
}