import { Transform } from 'class-transformer';
import {
  ArrayUnique,
  IsArray,
  IsBoolean,
  IsEmail,
  IsOptional,
  IsString,
  IsUUID,
  Matches,
  MaxLength,
  MinLength,
} from 'class-validator';

const optionalText = ({ value }: { value: unknown }) =>
  typeof value === 'string' && value.trim() ? value.trim() : null;

export class CreateUserDto {
  @Transform(({ value }) =>
    typeof value === 'string' ? value.trim().toLowerCase() : value,
  )
  @IsString()
  @MinLength(3)
  @MaxLength(80)
  @Matches(/^[a-zA-Z0-9._-]+$/)
  username!: string;

  @Transform(({ value }) =>
    typeof value === 'string' && value.trim() ? value.trim().toLowerCase() : null,
  )
  @IsOptional()
  @IsEmail()
  @MaxLength(320)
  email?: string | null;

  @Transform(({ value }) =>
    typeof value === 'string' && value.trim() ? value.replace(/\D/g, '') : null,
  )
  @IsOptional()
  @Matches(/^\d{7,11}$/)
  dni?: string | null;

  @Transform(optionalText)
  @IsOptional()
  @IsString()
  @MaxLength(40)
  phone?: string | null;

  @Transform(optionalText)
  @IsOptional()
  @IsString()
  @MaxLength(160)
  jobTitle?: string | null;

  @Transform(optionalText)
  @IsOptional()
  @IsString()
  @MaxLength(80)
  employeeNumber?: string | null;

  @IsString()
  @MinLength(12)
  @MaxLength(128)
  password!: string;

  @Transform(({ value }) => (typeof value === 'string' ? value.trim() : value))
  @IsString()
  @MinLength(1)
  @MaxLength(120)
  firstName!: string;

  @Transform(({ value }) => (typeof value === 'string' ? value.trim() : value))
  @IsString()
  @MinLength(1)
  @MaxLength(120)
  lastName!: string;

  @IsOptional()
  @IsBoolean()
  mustChangePassword = true;

  @IsArray()
  @ArrayUnique()
  @IsUUID('4', { each: true })
  roleIds!: string[];
}