module Docs
  class Rdoc
    class EntriesFilter < Docs::EntriesFilter
      def get_name
        name = at_css('h1, h2').content.strip
        name.remove! "\u{00B6}" # remove pilcrow sign
        name.remove! "\u{2191}" # remove up arrow sign
        name.remove! 'class '
        name.remove! 'module '
        name
      end

      def get_type
        type = name.dup

        unless type.gsub! %r{::.*\z}, ''
          parent = at_css('.meta-parent').try(:content).to_s
          return 'Errors' if type.end_with?('Error') || parent.end_with?('Error') || parent.end_with?('Exception')
        end

        type
      end

      def include_default_entry?
        at_css('> .description p') || css('.documentation-section').any? { |node| node.content.present? }
      end

      IGNORE_METHODS = %w(version gem_version)

      def additional_entries
        return [] if root_page?
        require 'cgi'

        css('.method-detail').inject [] do |entries, node|
          name = node['id'].dup
          name.remove! %r{\A\w+?\-.}
          name.remove! %r{\A-(?!\d)}
          name.gsub! '-', '%'
          name = CGI.unescape(name)

          unless name.start_with?('_') || IGNORE_METHODS.include?(name)
            name.prepend self.name + (node['id'] =~ /\A\w+-c-/ ? '::' : '#')
            entries << [name, node['id']] unless entries.any? { |entry| entry[0] == name }
          end

          entries
        end
      end
    end
  end
end