import { Transform } from 'class-transformer';
import { IsISO8601, IsOptional, IsString, MaxLength } from 'class-validator';

export class UpdateSurveyTargetDto {
  @IsOptional()
  @IsISO8601({ strict: true })
  dueAt?: string | null;

  @IsOptional()
  @Transform(({ value }) =>
    typeof value === 'string' && value.trim() ? value.trim() : null,
  )
  @IsString()
  @MaxLength(4000)
  instructions?: string | null;
}