<?php

declare(strict_types=1);

namespace DoctrineMigrations;

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

final class Version20260326165702 extends AbstractMigration
{
    public function getDescription(): string
    {
        return 'Rename task → task_schema, task_occurrence → task';
    }

    public function up(Schema $schema): void
    {
        // 1. Drop FKs on task_occurrence that reference task
        $this->addSql('ALTER TABLE task_occurrence DROP FOREIGN KEY FK_A2EECA5C8DB60186');

        // 2. Drop FK on task.category_id
        $this->addSql('ALTER TABLE task DROP FOREIGN KEY FK_527EDB2512469DE2');

        // 3. Rename tables
        $this->addSql('RENAME TABLE task TO task_schema');
        $this->addSql('RENAME TABLE task_occurrence TO task');

        // 4. Re-create FK: task.task_id → task_schema.id
        $this->addSql('ALTER TABLE task ADD CONSTRAINT FK_527EDB258DB60186 FOREIGN KEY (task_id) REFERENCES task_schema (id) ON DELETE CASCADE');

        // 5. Re-create FK: task_schema.category_id → category.id
        $this->addSql('ALTER TABLE task_schema ADD CONSTRAINT FK_8327C58112469DE2 FOREIGN KEY (category_id) REFERENCES category (id) ON DELETE SET NULL');
    }

    public function down(Schema $schema): void
    {
        // Drop FKs
        $this->addSql('ALTER TABLE task DROP FOREIGN KEY FK_527EDB258DB60186');
        $this->addSql('ALTER TABLE task_schema DROP FOREIGN KEY FK_8327C58112469DE2');

        // Rename back
        $this->addSql('RENAME TABLE task TO task_occurrence');
        $this->addSql('RENAME TABLE task_schema TO task');

        // Re-create original FKs
        $this->addSql('ALTER TABLE task_occurrence ADD CONSTRAINT FK_A2EECA5C8DB60186 FOREIGN KEY (task_id) REFERENCES task (id) ON DELETE CASCADE');
        $this->addSql('ALTER TABLE task ADD CONSTRAINT FK_527EDB2512469DE2 FOREIGN KEY (category_id) REFERENCES category (id) ON DELETE SET NULL');
    }
}