create two classes with same interfaces

users.rb

# User attributes name surname
class User < ApplicationRecord
  # attributes :id, integer
  # attributes :name, string
  # attributes :email, string  
  
  def log!
    Log.create!(...)
  end
  
  def create_gift!
    true
  end
end

class GuestUser
  # your code here
end


class GiftsController < ApplicationController
  def current_user
    @current_user = begin
      user = User.find_by(token: session[:token])
      user = GuestUser.new unless user
      user
    end
  end
  
  def index
    current_user.log!
    
    render json: Gift.where(user_id: current_user.id)
  end
  
  def create
    current_user.log!
    
    if current_user.create_gift!
      render json: { success: true }
    else
      render json: { success: false }
    end
  end
end