edr-platform/apps/edr-freight-api/src/migrations/3720000000000-ScheduleStationWorkLogs.ts

import { MigrationInterface, QueryRunner } from 'typeorm';

/**
 * Per-station loading/unloading time windows on a schedule, operator-clicked:
 * { [yardId]: { loading?: { startedAt, endedAt, startedByUserId, endedByUserId },
 *               unloading?: { same } } }
 * Booking load/unload is gated on the matching window having been started.
 */
export class ScheduleStationWorkLogs3720000000000 implements MigrationInterface {
  name = 'ScheduleStationWorkLogs3720000000000';

  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
      ALTER TABLE freight.train_schedules
        ADD COLUMN IF NOT EXISTS station_work_logs jsonb
    `);
  }

  public async down(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
      ALTER TABLE freight.train_schedules DROP COLUMN IF EXISTS station_work_logs
    `);
  }
}