import { MigrationInterface, QueryRunner } from 'typeorm';

/**
 * Allow DOMESTIC trade direction on weight_limit_rules (domestic corridor bookings).
 */
export class AddDomesticWeightLimitTradeDirection1781000000004
  implements MigrationInterface
{
  name = 'AddDomesticWeightLimitTradeDirection1781000000004';

  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
      DO $$ BEGIN
        ALTER TYPE freight.weight_limit_rules_trade_direction_enum ADD VALUE 'DOMESTIC';
      EXCEPTION
        WHEN duplicate_object THEN NULL;
        WHEN undefined_object THEN
          BEGIN
            ALTER TYPE weight_limit_rules_trade_direction_enum ADD VALUE 'DOMESTIC';
          EXCEPTION
            WHEN duplicate_object THEN NULL;
          END;
      END $$;
    `);
  }

  public async down(_queryRunner: QueryRunner): Promise<void> {
    // PostgreSQL does not support removing enum values safely.
  }
}