import { Transform, Type } from 'class-transformer';
import {
  IsBoolean,
  IsEmail,
  IsEnum,
  IsInt,
  IsOptional,
  IsString,
  Max,
  MaxLength,
  Min,
  MinLength,
} from 'class-validator';
import { SmtpSecurityMode } from '../../database/entities';

export class UpdateSmtpSettingsDto {
  @Transform(({ value }) => typeof value === 'string' ? value.trim() : value)
  @IsString()
  @MinLength(1)
  @MaxLength(255)
  host!: string;

  @Type(() => Number)
  @IsInt()
  @Min(1)
  @Max(65535)
  port!: number;

  @IsEnum(SmtpSecurityMode)
  securityMode!: SmtpSecurityMode;

  @IsOptional()
  @Transform(({ value }) => typeof value === 'string' ? value.trim() || null : value)
  @IsString()
  @MaxLength(255)
  username?: string | null;

  /** Omitir para conservar la clave actual; enviar null/cadena vacía para quitarla. */
  @IsOptional()
  @IsString()
  @MaxLength(1000)
  password?: string | null;

  @Transform(({ value }) => typeof value === 'string' ? value.trim() : value)
  @IsString()
  @MinLength(1)
  @MaxLength(200)
  fromName!: string;

  @Transform(({ value }) => typeof value === 'string' ? value.trim().toLowerCase() : value)
  @IsEmail()
  @MaxLength(320)
  fromEmail!: string;

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

  @Transform(({ value }) => value === true || value === 'true')
  @IsBoolean()
  enabled!: boolean;
}

export class TestSmtpSettingsDto {
  @Transform(({ value }) => typeof value === 'string' ? value.trim().toLowerCase() : value)
  @IsEmail()
  @MaxLength(320)
  email!: string;
}