import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
import { Transform } from 'class-transformer';
import { IsIn, IsNotEmpty, IsOptional, IsString, Length, Matches } from 'class-validator';

export class SayahRequestDto {
  @ApiPropertyOptional({ example: '1', description: '1 for natural person' })
  @IsOptional()
  @IsString()
  @IsIn(['1'])
  accountOwnerType?: string;

  @ApiProperty({ example: '4311402422', description: 'Iranian national code (10 digits)' })
  @IsString()
  @IsNotEmpty()
  @Length(10, 10)
  @Matches(/^\d{10}$/, { message: 'nationalCode must be exactly 10 digits' })
  nationalCode!: string;

  @ApiPropertyOptional({
    type: String,
    example: '',
    nullable: true,
    description: 'Legal entity ID; use empty string for natural persons',
  })
  @IsOptional()
  @IsString()
  @Transform(({ value }: { value: unknown }) => {
    if (value === null || value === undefined) {
      return value;
    }
    if (typeof value === 'object') {
      return '';
    }
    return String(value);
  })
  legalId?: string | null;

  @ApiProperty({
    example: 'IR800560611828005105117001',
    description: 'Iranian Sheba ID (26 characters)',
  })
  @Transform(({ value }: { value?: string }) => value?.toUpperCase())
  @IsString()
  @Length(26, 26)
  @Matches(/^IR\d{24}$/, { message: 'sheba must start with IR and contain 24 digits' })
  sheba!: string;
}