import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
import { IsOptional, IsString, Matches, MaxLength } from 'class-validator';

/** Step-up proof for a new Telegram link token (Spec 9a.5). */
export class TelegramLinkTokenDto {
  @ApiProperty({ description: 'Aktuelles Passwort' })
  @IsString()
  @MaxLength(200)
  password!: string;

  @ApiPropertyOptional({ description: 'Aktueller TOTP-Code, falls MFA aktiv' })
  @IsOptional()
  @Matches(/^\d{6}$/, { message: 'mfaCode must be a 6-digit number' })
  mfaCode?: string;
}