module Jobshop
  class Registration < VirtualRecord
    memo_attr(:user) { site.users.build(user_params) }
    memo_attr(:site) {
      record = Jobshop::Site.find(params[:site_id])
      record.assign_attributes(site_params)
      record
    }

    def save
      return false unless valid?

      result = ActiveRecord::Base.transaction do
        user.save!
        site.update!(owner: user)
      end

      result != false
    end

    private

    def registration_params
      params.fetch(:registration, ActionController::Parameters.new)
    end

    def site_params
      registration_params.fetch(
        :site, ActionController::Parameters.new).permit(:name)
    end

    def user_params
      registration_params.fetch(:user, ActionController::Parameters.new).
        permit(:email, :password, :password_confirmation)
    end
  end
end