module Semantic
  module Subscribers
    # LogSubscriber for event_group :action_view
    class ActionView < LogSubscriber
      include AnsiColors

      REGEX_BASEDIR = %r{^#{Rails.root}/(.*)}

      def initialize = super(:view)

      def render_partial(event)
        identifier = pathname(event.payload[:identifier])
        # logger.debug("Rendered partial #{identifier}", event.payload[:locals]) if identifier
        logger.debug("Rendered partial #{identifier}") if identifier
      end

      def render_template(event)
        layout = event.payload[:layout]
        return unless layout

        identifier = pathname(event.payload[:identifier])
        logger.debug { "Rendered template #{identifier}" } if identifier
      end

      def render_collection(event)
        identifier = pathname(event.payload[:identifier])
        count = event.payload[:count]
        cache_hits = event.payload[:cache_hits] || 0
        logger.debug { "Rendered collection #{identifier} (#{count} times, #{cache_hits} cached)" } if identifier
      end

      def render_layout(event)
        identifier = pathname(event.payload[:identifier])
        logger.debug { "Rendered layout #{identifier}" } if identifier
      end

      private

      def pathname(location)
        m = REGEX_BASEDIR.match(location)
        m[1] if m
      end
    end
  end
end