require "asciidoctor/standoc/converter"
require "asciidoctor/generic/converter"

module Asciidoctor
  module Ribose
    # A {Converter} implementation that generates RSD output, and a document
    # schema encapsulation of the document for validation
    #
    class Converter < Asciidoctor::Generic::Converter
      XML_ROOT_TAG = "rsd-standard".freeze
      XML_NAMESPACE = "https://www.metanorma.org/ns/rsd".freeze

      register_for "ribose"

      def sectiontype(node, level = true)
        ret = sectiontype1(node)
        ret1 = sectiontype_streamline(ret)
        return ret1 if ret1 == "symbols and abbreviated terms"
        return ret1 if ret1 == "executive summary"
        return nil unless !level || node.level == 1
        return nil if @seen_headers.include? ret

        @seen_headers << ret
        ret1
      end

      def make_preface(xml, sect)
        if xml.at("//foreword | //introduction | //acknowledgements | "\
            "//clause[@preface] | //executivesummary")
          preface = sect.add_previous_sibling("<preface/>").first
          f = xml.at("//foreword") and preface.add_child f.remove
          f = xml.at("//executivesummary") and preface.add_child f.remove
          f = xml.at("//introduction") and preface.add_child f.remove
          move_clauses_into_preface(xml, preface)
          f = xml.at("//acknowledgements") and preface.add_child f.remove
        end
        make_abstract(xml, sect)
      end

      def clause_parse(attrs, xml, node)
        sectiontype1(node) == "executive summary" and
          return executivesummary_parse(attrs, xml, node)
        super
      end

      def executivesummary_parse(attrs, xml, node)
        xml.executivesummary **attr_code(attrs) do |xml_section|
          xml_section.title { |t| t << node.title || "Executive Summary" }
          content = node.content
          xml_section << content
        end
      end

      def configuration
        Metanorma::Ribose.configuration
      end

      def presentation_xml_converter(node)
        IsoDoc::Ribose::PresentationXMLConvert
          .new(html_extract_attributes(node))
      end

      def html_converter(node)
        IsoDoc::Ribose::HtmlConvert.new(html_extract_attributes(node))
      end

      def pdf_converter(node)
        return nil if node.attr("no-pdf")

        IsoDoc::Ribose::PdfConvert.new(html_extract_attributes(node))
      end

      def doc_converter(node)
        IsoDoc::Ribose::WordConvert.new(doc_extract_attributes(node))
      end
    end
  end
end