require 'banzai'

module Gitlab
  module Markdown
    class Pipeline
      def self.[](name)
        name ||= :full
        const_get("#{name.to_s.camelize}Pipeline")
      end

      def self.filters
        []
      end

      def self.transform_context(context)
        context
      end

      def self.html_pipeline
        @html_pipeline ||= HTML::Pipeline.new(filters)
      end

      class << self
        %i(call to_document to_html).each do |meth|
          define_method(meth) do |text, context|
            context = transform_context(context)

            html_pipeline.send(meth, text, context)
          end
        end
      end
    end
  end
end