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

const TAGS = [
  'DIVIDEND',
  'GROWTH',
  'DEFENSIVE',
  'SPECULATIVE',
  'BOND',
  'ETF',
  'GOVERNMENT',
  'CASH',
] as const;

export class AddPositionDto {
  @ApiProperty({ example: 'SBER' })
  @IsString()
  @MinLength(1)
  @MaxLength(50)
  secid!: string;

  @ApiProperty({ example: 10 })
  @IsInt()
  @Min(0)
  quantity!: number;

  @ApiPropertyOptional({ example: 250.5 })
  @IsNumber()
  @Min(0)
  @IsOptional()
  buyPrice?: number;

  @ApiPropertyOptional({ example: '2026-06-01' })
  @IsString()
  @IsOptional()
  buyDate?: string;

  @ApiPropertyOptional({ example: 'Покупка на дип' })
  @IsString()
  @IsOptional()
  @MaxLength(500)
  notes?: string;

  @ApiPropertyOptional({ example: ['DIVIDEND', 'GROWTH'], enum: TAGS, isArray: true })
  @IsArray()
  @IsIn(TAGS, { each: true })
  @IsOptional()
  tags?: string[];
}