<?php

declare(strict_types=1);

namespace DoctrineMigrations;

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

/**
 * Directory module: add Timestampable/Blamable columns to client.
 *
 * Client (moved to App\Module\Directory\Domain\Entity) adopts
 * TimestampableBlamableTrait. This migration is purely additive — nullable
 * columns + nullable FK to "user" with ON DELETE SET NULL. No DROP/ALTER on
 * existing data. Columns are lowercase snake_case. Hand-written to guarantee
 * zero destructive instruction.
 */
final class Version20260620180000 extends AbstractMigration
{
    public function getDescription(): string
    {
        return 'Directory: add timestampable/blamable columns to client (additive)';
    }

    public function up(Schema $schema): void
    {
        $this->addSql('ALTER TABLE client ADD created_at TIMESTAMP(0) WITHOUT TIME ZONE DEFAULT NULL');
        $this->addSql('ALTER TABLE client ADD updated_at TIMESTAMP(0) WITHOUT TIME ZONE DEFAULT NULL');
        $this->addSql('ALTER TABLE client ADD created_by INT DEFAULT NULL');
        $this->addSql('ALTER TABLE client ADD updated_by INT DEFAULT NULL');
        $this->addSql('ALTER TABLE client ADD CONSTRAINT FK_C7440455DE12AB56 FOREIGN KEY (created_by) REFERENCES "user" (id) ON DELETE SET NULL NOT DEFERRABLE');
        $this->addSql('ALTER TABLE client ADD CONSTRAINT FK_C744045516FE72E1 FOREIGN KEY (updated_by) REFERENCES "user" (id) ON DELETE SET NULL NOT DEFERRABLE');
        $this->addSql('CREATE INDEX IDX_C7440455DE12AB56 ON client (created_by)');
        $this->addSql('CREATE INDEX IDX_C744045516FE72E1 ON client (updated_by)');
        $this->addSql("COMMENT ON COLUMN client.created_at IS 'Creation timestamp (Timestampable, set on prePersist)'");
        $this->addSql("COMMENT ON COLUMN client.updated_at IS 'Last update timestamp (Timestampable, set on prePersist/preUpdate)'");
        $this->addSql("COMMENT ON COLUMN client.created_by IS 'User who created the entry (Blamable, FK user.id, SET NULL on delete)'");
        $this->addSql("COMMENT ON COLUMN client.updated_by IS 'User who last updated the entry (Blamable, FK user.id, SET NULL on delete)'");
    }

    public function down(Schema $schema): void
    {
        $this->addSql('ALTER TABLE client DROP CONSTRAINT FK_C7440455DE12AB56');
        $this->addSql('ALTER TABLE client DROP CONSTRAINT FK_C744045516FE72E1');
        $this->addSql('DROP INDEX IDX_C7440455DE12AB56');
        $this->addSql('DROP INDEX IDX_C744045516FE72E1');
        $this->addSql('ALTER TABLE client DROP created_at');
        $this->addSql('ALTER TABLE client DROP updated_at');
        $this->addSql('ALTER TABLE client DROP created_by');
        $this->addSql('ALTER TABLE client DROP updated_by');
    }
}
