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

const CURRENCIES = ['RUB', 'USD', 'EUR', 'CNY', 'KZT', 'BYN'] as const;

export class UpdatePortfolioDto {
  @ApiPropertyOptional({ example: 'Мой портфель' })
  @IsString()
  @MinLength(1)
  @MaxLength(100)
  @IsOptional()
  name?: string;

  @ApiPropertyOptional({ example: 'Обновлённое описание' })
  @IsString()
  @IsOptional()
  @MaxLength(500)
  description?: string;

  @ApiPropertyOptional({ default: 'RUB', enum: CURRENCIES })
  @IsString()
  @IsIn(CURRENCIES)
  @IsOptional()
  currency?: string;
}