<?php

namespace DoctrineMigrations;

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

final class Version20260912000500 extends AbstractMigration
{
    public function getDescription(): string
    {
        return 'Named menus per slot, stored as a validated item tree.';
    }

    public function isTransactional(): bool
    {
        return false;
    }

    public function up(Schema $schema): void
    {
        $menu = $schema->createTable('menu');
        $menu->addColumn('id', 'string', ['length' => 64]);
        $menu->addColumn('website_id', 'string', ['length' => 64]);
        $menu->addColumn('locale', 'string', ['length' => 12]);
        // One menu per slot and locale; the slot is what a template asks for.
        $menu->addColumn('slot', 'string', ['length' => 32]);
        $menu->addColumn('name', 'string', ['length' => 120]);
        $menu->addColumn('items', 'json');
        // Optimistic locking, same contract as pages: a stale form must not overwrite newer items.
        $menu->addColumn('version', 'integer', ['default' => 0]);
        $menu->setPrimaryKey(['id']);
        $menu->addUniqueIndex(['website_id', 'locale', 'slot'], 'uniq_menu_slot');
    }

    public function down(Schema $schema): void
    {
        $this->throwIrreversibleMigrationException('Contains the site navigation. Restore a verified database backup with matching code.');
    }
}