import { ApiProperty } from '@nestjs/swagger';
import { Type } from 'class-transformer';
import { IsInt, Min } from 'class-validator';

/**
 * Shorten the booking-close offset of ONE schedule whose booking shut only
 * because of that offset (staff action on the ops board). The value replaces the
 * schedule's frozen offset; 0 means "close at departure".
 */
export class ReduceScheduleCloseOffsetDto {
  @ApiProperty({
    example: 120,
    description:
      'New minutes-before-departure at which booking closes. Must be shorter than the current offset; 0 = close at departure.',
  })
  @Type(() => Number)
  @IsInt()
  @Min(0)
  closeOffsetMinutes!: number;
}