<?php

declare(strict_types=1);

namespace OCA\News\Migration;

use Closure;
use OCP\DB\ISchemaWrapper;
use OCP\Migration\IOutput;
use OCP\Migration\SimpleMigrationStep;

/**
 * Auto-generated migration step: Please modify to your needs!
 */
class Version150400Date20210318215425 extends SimpleMigrationStep {

    /**
     * @param IOutput $output
     * @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
     * @param array $options
     */
    public function preSchemaChange(IOutput $output, Closure $schemaClosure, array $options): void {
    }

    /**
     * @param IOutput $output
     * @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
     * @param array $options
     * @return null|ISchemaWrapper
     */
    public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
        /** @var ISchemaWrapper $schema */
        $schema = $schemaClosure();

        if ($schema->hasTable('news_items')) {
            $table = $schema->getTable('news_items');
            $table->addColumn('shared_by', 'string', [
                'notnull' => false,
                'length' => 64
            ]);
        }

        return $schema;
    }

    /**
     * @param IOutput $output
     * @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
     * @param array $options
     */
    public function postSchemaChange(IOutput $output, Closure $schemaClosure, array $options): void {
    }
}