<?php

declare(strict_types=1);

namespace DoctrineMigrations;

use Doctrine\DBAL\Schema\Schema;
use Doctrine\Migrations\AbstractMigration;

/**
 * Characters: skill expertise (double proficiency bonus).
 */
final class Version20261004104738 extends AbstractMigration
{
    public function getDescription(): string
    {
        return 'Add skill_expertise to character_sheet';
    }

    public function up(Schema $schema): void
    {
        // Existing rows need a valid JSON value before the column can be NOT NULL.
        $this->addSql('ALTER TABLE character_sheet ADD skill_expertise JSON DEFAULT NULL');
        $this->addSql("UPDATE character_sheet SET skill_expertise = '[]'");
        $this->addSql('ALTER TABLE character_sheet MODIFY skill_expertise JSON NOT NULL');
    }

    public function down(Schema $schema): void
    {
        $this->addSql('ALTER TABLE character_sheet DROP skill_expertise');
    }
}