module Api
  module Jurisprudence
    class CrossReferencesController < ::Api::BaseController
      load_resource :document, class: "Cdao::Jurisprudence", id_param: :jurisprudence_id

      def index
        authorize! :read, @document

        response = { data: [] }

        document = @document
        where = { enabled: true, state: "published" }

        document.class.cited_docs_of(document, where).group_by { |a| a.class.name }.each do |klass, docs|
          klass = klass.gsub("Cdao::", "")
          library = Cdao::Library.find_by(document_type: klass)

          response[:data] << {
            library: {
              document_type: klass,
              display_name: library.try(:display_name).presence || "",
              name: library.try(:name).presence || "",
            },
            data_id_prefix: "#{klass}-",
            documents: docs.map { |doc| doc.to_builder(current_ability).attributes! }
          }
        end

        render json: response
      end
    end
  end
end