export interface RegisterErrors {
  name?: string;
  surname?: string;
  phone?: string;
  oferta?: string;
}

export function validateRegister(data: {
  name: string;
  surname: string;
  phone: string;
  oferta?: boolean;
}): RegisterErrors {
  const errors: RegisterErrors = {};

  if (!data.name.trim()) {
    errors.name = 'Name is required';
  } else if (data.name.trim().length < 2) {
    errors.name = 'Name must be at least 2 characters';
  }

  if (!data.surname.trim()) {
    errors.surname = 'Surname is required';
  } else if (data.surname.trim().length < 2) {
    errors.surname = 'Surname must be at least 2 characters';
  }

  const digits = data.phone.replace(/\D/g, '');
  if (!digits) {
    errors.phone = 'Phone is required';
  } else if (digits.length !== 9) {
    errors.phone = 'Enter a valid 9-digit phone number';
  }

  if (!data.oferta) {
    errors.oferta = 'You must accept the terms to continue';
  }

  return errors;
}