import { Transform } from 'class-transformer';
import {
  ArrayUnique,
  IsArray,
  IsBoolean,
  IsEnum,
  IsInt,
  IsOptional,
  IsString,
  Matches,
  Max,
  MaxLength,
  Min,
  MinLength,
  ValidateIf,
} from 'class-validator';
import { AssetAttributeDataType } from '../../database/entities';

export class CreateAttributeDefinitionDto {
  @Transform(({ value }) =>
    typeof value === 'string' ? value.trim().toLowerCase() : value,
  )
  @IsString()
  @MinLength(2)
  @MaxLength(80)
  @Matches(/^[a-z][a-z0-9_-]+$/)
  code!: string;

  @Transform(({ value }) => (typeof value === 'string' ? value.trim() : value))
  @IsString()
  @MinLength(1)
  @MaxLength(160)
  name!: string;

  @IsEnum(AssetAttributeDataType)
  dataType!: AssetAttributeDataType;

  @IsBoolean()
  isRequired!: boolean;

  @IsOptional()
  @Transform(({ value }) =>
    typeof value === 'string' && value.trim() ? value.trim() : null,
  )
  @IsString()
  @MaxLength(40)
  unit?: string | null;

  @ValidateIf((dto: CreateAttributeDefinitionDto) =>
    dto.dataType === AssetAttributeDataType.SELECT,
  )
  @IsArray()
  @ArrayUnique()
  @IsString({ each: true })
  @MinLength(1, { each: true })
  @MaxLength(160, { each: true })
  options?: string[];

  @IsInt()
  @Min(0)
  @Max(10_000)
  sortOrder!: number;
}