<?php

declare(strict_types=1);

namespace DoctrineMigrations;

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

final class Version20260804140000 extends AbstractMigration
{
    public function getDescription(): string
    {
        return 'Add manual ordering position to additional services';
    }

    public function up(Schema $schema): void
    {
        // The default only backfills existing rows; it is dropped again so the column matches the mapping.
        $this->addSql('ALTER TABLE additional_service ADD position INT DEFAULT 0 NOT NULL');
        $this->addSql('ALTER TABLE additional_service ALTER COLUMN position DROP DEFAULT');

        // Seed the positions with the ordering the admin overview used before, so nothing changes
        // visually until someone actually drags a row.
        $this->addSql('
            UPDATE additional_service s
            JOIN (
                SELECT id, ROW_NUMBER() OVER (
                    PARTITION BY accommodation_id
                    ORDER BY date_from ASC, (price <> 0) ASC, label ASC
                ) AS rn
                FROM additional_service
            ) o ON o.id = s.id
            SET s.position = o.rn
        ');
    }

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