module Users
  # Create new user
  class SignInOrCreateWithLinkedin
    include UseCase

    attr_reader :listener, :klass, :auth

    def initialize(listener, klass, auth)
      @listener = listener
      @klass = klass
      @auth = auth
    end

    def perform
      user = sign_in_or_create_user_with_linked_in

      if user.save
        listener.on_linkedin_success user
      else
        listener.on_linkedin_fail user
      end
    end

    private

    def sign_in_or_create_user_with_linked_in
      klass
        .where(provider: auth.provider, uid: auth.uid)
        .first_or_create { |user| create_user(user) }
    end

    def create_user(user)
      user.role = 'user'
      user.name = auth.info.name
      user.email = auth.info.email
      user.password = Devise.friendly_token[0, 20]
      user.authentication_token = Devise.friendly_token[0, 30]
    end
  end
end