<?php

declare(strict_types=1);

namespace DoctrineMigrations;

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

final class Version20251114114000 extends AbstractMigration
{
    public function getDescription(): string
    {
        return 'Drop legacy duplicated review columns: spotify_album_id, album_name, album_artist';
    }

    public function up(Schema $schema): void
    {
        if ($this->isSqlite()) {
            // SQLite schema never created the legacy columns.
            return;
        }
        // Guard: drop columns only if they exist
        $this->addSql(<<<'SQL'
DO $$
BEGIN
  IF EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='reviews' AND column_name='spotify_album_id') THEN
    ALTER TABLE reviews DROP COLUMN spotify_album_id;
  END IF;
  IF EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='reviews' AND column_name='album_name') THEN
    ALTER TABLE reviews DROP COLUMN album_name;
  END IF;
  IF EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name='reviews' AND column_name='album_artist') THEN
    ALTER TABLE reviews DROP COLUMN album_artist;
  END IF;
END $$;
SQL);
    }

    public function down(Schema $schema): void
    {
        if ($this->isSqlite()) {
            return;
        }
        // Recreate columns as nullable in down migration
        $this->addSql('ALTER TABLE reviews ADD spotify_album_id VARCHAR(64) DEFAULT NULL');
        $this->addSql('ALTER TABLE reviews ADD album_name VARCHAR(255) DEFAULT NULL');
        $this->addSql('ALTER TABLE reviews ADD album_artist VARCHAR(255) DEFAULT NULL');
    }

    private function isSqlite(): bool
    {
        return $this->connection->getDatabasePlatform()->getName() === 'sqlite';
    }
}