<?php

declare(strict_types=1);

namespace DoctrineMigrations;

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

final class Version20260914090000 extends AbstractMigration
{
    public function getDescription(): string
    {
        return 'Drops booking_series.weekdays -- a series now strides from its start date';
    }

    public function up(Schema $schema): void
    {
        // A recurrence rule is only a step size now (1, 7, 14 or 28 days), and every whole-week
        // stride holds the weekday of the start date by construction. The column had nothing
        // left to say. Existing rows need no data migration: their start_date already carries
        // the weekday, and the stride reproduces it.
        $this->addSql('ALTER TABLE booking_series DROP weekdays');
    }

    public function down(Schema $schema): void
    {
        // Lossy on purpose, and not fixable: which weekdays a multi-day weekly series used to
        // run on is gone once the column is dropped. Every restored row comes back as "[]",
        // which the old code read as "every calendar day" for DAILY and "no days at all" for
        // WEEKLY -- so a rolled-back weekly series would materialise nothing.
        $this->addSql("ALTER TABLE booking_series ADD weekdays JSON NOT NULL DEFAULT '[]'");
        $this->addSql('ALTER TABLE booking_series ALTER weekdays DROP DEFAULT');
    }
}