require "isodoc"

module IsoDoc
  module ITU

    class Metadata < IsoDoc::Metadata
      def initialize(lang, script, labels)
        super
        here = File.dirname(__FILE__)
        n = "International_Telecommunication_Union_Logo.svg"
        set(:logo_html,
            File.expand_path(File.join(here, "html", n)))
        set(:logo_comb,
            File.expand_path(File.join(here, "html", "itu-document-comb.png")))
        set(:logo_word,
            File.expand_path(File.join(here, "html", n)))
      end

      def title(isoxml, _out)
        main = isoxml&.at(ns("//bibdata/title[@language='#{@lang}']"\
                             "[@type = 'main']"))&.text
        set(:doctitle, main)
        main = isoxml&.at(ns("//bibdata/title[@language='#{@lang}']"\
                             "[@type = 'subtitle']"))&.text
        set(:docsubtitle, main)
        main = isoxml&.at(ns("//bibdata/title[@language='#{@lang}']"\
                             "[@type = 'amendment']"))&.text
        set(:amendmenttitle, main)
        main = isoxml&.at(ns("//bibdata/title[@language='#{@lang}']"\
                             "[@type = 'corrigendum']"))&.text
        set(:corrigendumtitle, main)
        series = isoxml&.at(ns("//bibdata/series[@type='main']/title"))&.text
        set(:series, series)
        series1 =
          isoxml&.at(ns("//bibdata/series[@type='secondary']/title"))&.text
        set(:series1, series1)
        series2 =
          isoxml&.at(ns("//bibdata/series[@type='tertiary']/title"))&.text
        set(:series2, series2)
        annext = isoxml&.at(ns("//bibdata/title[@type='annex']"))&.text
        set(:annextitle, annext)
      end

      def subtitle(_isoxml, _out)
        nil
      end

      def author(isoxml, _out)
        bureau = isoxml.at(ns("//bibdata/ext/editorialgroup/bureau"))
        set(:bureau, bureau.text) if bureau
        tc = isoxml.at(ns("//bibdata/ext/editorialgroup/committee"))
        set(:tc, tc.text) if tc
        super
      end

      def docid(isoxml, _out)
        dn = isoxml.at(ns("//bibdata/docidentifier[@type = 'ITU']"))
        set(:docnumber, dn&.text)
        dn = isoxml.at(ns("//bibdata/ext/structuredidentifier/annexid"))
        oblig = isoxml&.at(ns("//annex/@obligation"))&.text
        lbl = oblig == "informative" ? @labels["appendix"] : @labels["annex"]
        dn and set(:annexid, @i18n.l10n("#{lbl} #{dn&.text}"))
        dn = isoxml.at(ns("//bibdata/ext/structuredidentifier/amendment")) and
          set(:amendmentid, @i18n.l10n("#{@labels["amendment"]} #{dn&.text}"))
        dn = isoxml.at(ns("//bibdata/ext/structuredidentifier/corrigendum")) and
          set(:corrigendumid, @i18n.l10n("#{@labels["corrigendum"]} #{dn&.text}"))
      end

      def unpublished(status)
        %w(in-force-prepublished draft).include? status.downcase
      end

      def bibdate(isoxml, _out)
        pubdate = isoxml.xpath(ns("//bibdata/date[@type = 'published']"))
        pubdate and set(:pubdate_monthyear, monthyr(pubdate.text))
      end

      def monthyr(isodate)
        m = /(?<yr>\d\d\d\d)-(?<mo>\d\d)/.match isodate
        return isodate unless m && m[:yr] && m[:mo]
        return "#{m[:mo]}/#{m[:yr]}"
      end

      def keywords(isoxml, _out)
        super
        set(:keywords, get[:keywords].sort)
      end

      def doctype(isoxml, _out)
        d = isoxml&.at(ns("//bibdata/ext/doctype"))&.text
        set(:doctype_original, d)
        if d == "recommendation-annex"
          set(:doctype, "Recommendation")
        else
          super
        end
      end

      def ip_notice_received(isoxml, _out)
        received = isoxml.at(ns("//bibdata/ext/ip-notice-received"))&.text ||
          "false"
        set(:ip_notice_received, received)
      end
    end
  end
end