<?php

/**
 * Convert a JSON abstract schema change to a schema change file in the given DBMS type
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @ingroup Maintenance
 */

use Wikimedia\Rdbms\DoctrineSchemaBuilderFactory;

require_once __DIR__ . '/includes/SchemaMaintenance.php';

/**
 * Maintenance script to generate schema from abstract json files.
 *
 * @ingroup Maintenance
 */
class GenerateSchemaChangeSql extends SchemaMaintenance {
	public function __construct() {
		parent::__construct();
		$this->addDescription( 'Build SQL files for schema changes from abstract JSON files' );
		$this->scriptName = 'generateSchemaChangeSql.php';
	}

	protected function generateSchema( string $platform, array $schema ): string {
		$schemaChangeBuilder = ( new DoctrineSchemaBuilderFactory() )->getSchemaChangeBuilder( $platform );

		$schemaChangeSqls = $schemaChangeBuilder->getSchemaChangeSql( $schema );
		if ( !$schemaChangeSqls ) {
			$this->fatalError( 'No schema changes detected!' );
		}

		$sql = $this->cleanupSqlArray( $platform, $schemaChangeSqls );

		return $sql;
	}

}

$maintClass = GenerateSchemaChangeSql::class;
require_once RUN_MAINTENANCE_IF_MAIN;
