<?php

declare(strict_types=1);

namespace DoctrineMigrations;

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

final class Version20260211123000 extends AbstractMigration
{
    public function getDescription(): string
    {
        return 'Allow weight to belong to reception or shipment.';
    }

    public function up(Schema $schema): void
    {
        $this->addSql('ALTER TABLE weight ALTER COLUMN reception_id DROP NOT NULL');
        $this->addSql('ALTER TABLE weight ADD shipment_id INT DEFAULT NULL');
        $this->addSql('ALTER TABLE weight ADD CONSTRAINT FK_WEIGHT_SHIPMENT FOREIGN KEY (shipment_id) REFERENCES shipment (id) NOT DEFERRABLE');
        $this->addSql('CREATE INDEX IDX_WEIGHT_SHIPMENT ON weight (shipment_id)');
        $this->addSql('CREATE UNIQUE INDEX uniq_weight_reception_type ON weight (reception_id, type)');
        $this->addSql('CREATE UNIQUE INDEX uniq_weight_shipment_type ON weight (shipment_id, type)');
        $this->addSql('ALTER TABLE weight ADD CONSTRAINT chk_weight_reception_or_shipment CHECK ((reception_id IS NOT NULL AND shipment_id IS NULL) OR (reception_id IS NULL AND shipment_id IS NOT NULL))');
    }

    public function down(Schema $schema): void
    {
        $this->addSql('ALTER TABLE weight DROP CONSTRAINT chk_weight_reception_or_shipment');
        $this->addSql('DROP INDEX uniq_weight_shipment_type');
        $this->addSql('DROP INDEX uniq_weight_reception_type');
        $this->addSql('DROP INDEX IDX_WEIGHT_SHIPMENT');
        $this->addSql('ALTER TABLE weight DROP CONSTRAINT FK_WEIGHT_SHIPMENT');
        $this->addSql('ALTER TABLE weight DROP shipment_id');
        $this->addSql('ALTER TABLE weight ALTER COLUMN reception_id SET NOT NULL');
    }
}