module Guts
  # Controller concern for multisite into application
  module MultisiteConcern
    extend ActiveSupport::Concern
    
    included do
      around_action :with_current_site
    
      # Sets the current site based on the request host
      # @return [Object, nil] the current site if found or nil
      def current_site
        @current_site ||= Site.find_by(domain: request.host)
      end
      
      # Wraps all actions to set current site for multisite
      # @see Guts::MultisiteConcern#current_site
      # @note This is a `around_action` method
      def with_current_site
        # Get the current site and begin action
        Site.current_id = current_site.try(:id)

        yield
      ensure
        # Clean up the current site ID
        Site.current_id = nil
      end
    end
  end
end