module Jekyll

# File lib/jekyll-asciidoc/converter.rb, line 147
def self.after_render document
  (get_instance document.site).after_render document if Document === document || Excerpt === document
end

# File lib/jekyll-asciidoc/converter.rb, line 143
def self.before_render document, payload
  (get_instance document.site).before_render document, payload if Document === document || Excerpt === document
end

# File lib/jekyll-asciidoc/converter.rb, line 131
def self.get_instance site
  site.find_converter_instance self
end

# File lib/jekyll-asciidoc/converter.rb, line 157
def after_render _document
  @page_context.clear
end

# File lib/jekyll-asciidoc/converter.rb, line 151
def before_render document, payload
  # NOTE Jekyll 3.1 incorrectly maps the page payload to document.data instead of payload['page']
  @page_context[:data] = ::Jekyll::AsciiDoc::Jekyll3_1 ? document.data : payload['page']
  record_paths document
end

# File lib/jekyll-asciidoc/converter.rb, line 174
def clear_paths
  @page_context.delete :paths
end

# File lib/jekyll-asciidoc/converter.rb, line 206
def convert content
  # NOTE don't use nil_or_empty? since that's only provided only by Asciidoctor
  return '' unless content && !content.empty?

  case @asciidoc_config['processor']
  when 'asciidoctor'
    opts = @asciidoctor_config.merge header_footer: (data = @page_context[:data] || {})['standalone']
    if (paths = @page_context[:paths])
      if opts[:base_dir] == :docdir
        opts[:base_dir] = paths['docdir'] # NOTE this assignment happens inside the processor anyway
      else
        paths.delete 'docdir'
      end
      opts[:attributes] = opts[:attributes].merge paths
    end
    if (doctype = data['doctype'])
      opts[:doctype] = doctype
    end
    (data['document'] = ::Asciidoctor.load content, opts).extend(Liquidable).convert
  else
    @logger.warn MessageTopic,
        %(Unknown AsciiDoc processor: #{@asciidoc_config['processor']}. Passing through unparsed content.)
    content
  end
end

# File lib/jekyll-asciidoc/converter.rb, line 178
def load_header document
  record_paths document, source_only: true
  case @asciidoc_config['processor']
  when 'asciidoctor'
    opts = @asciidoctor_config.merge parse_header_only: true
    header = extract_header document
    if (paths = @page_context[:paths])
      if opts[:base_dir] == :docdir
        opts[:base_dir] = paths['docdir'] # NOTE this assignment happens inside the processor anyway
      else
        paths.delete 'docdir'
      end
      opts[:attributes] = opts[:attributes].merge paths
    end
    if (layout_attr = resolve_default_layout document, opts[:attributes])
      opts[:attributes] = opts[:attributes].merge layout_attr
    end
    # NOTE return instance even if header is empty since attributes may be inherited from config
    doc = ::Asciidoctor.load header, opts
  else
    @logger.warn MessageTopic,
        %(Unknown AsciiDoc processor: #{@asciidoc_config['processor']}. Cannot load document header.)
    doc = nil
  end
  clear_paths
  doc
end

# File lib/jekyll-asciidoc/converter.rb, line 113
def load_processor
  case @asciidoc_config['processor']
  when 'asciidoctor'
    begin
      require 'asciidoctor' unless defined? ::Asciidoctor::VERSION
    rescue ::LoadError
      @logger.error MessageTopic, 'You\'re missing a library required to convert AsciiDoc files. Install using:'
      @logger.error '', '$ [sudo] gem install asciidoctor'
      @logger.abort_with 'Bailing out; missing required dependency: asciidoctor'
    end
  else
    @logger.error MessageTopic, %(Invalid AsciiDoc processor given: #{@asciidoc_config['processor']})
    @logger.error '', 'Valid options are: asciidoctor'
    @logger.abort_with 'Bailing out; invalid Asciidoctor processor.'
  end
  nil
end

# File lib/jekyll-asciidoc/converter.rb, line 135
def matches ext
  @asciidoc_config['ext_re'].match? ext
end

# File lib/jekyll-asciidoc/converter.rb, line 139
def output_ext _ext
  '.html'
end

# File lib/jekyll-asciidoc/converter.rb, line 161
def record_paths document, opts = {}
  @page_context[:paths] = paths = {
    'docfile' => (docfile = ::File.join document.site.source, document.relative_path),
    'docdir' => (::File.dirname docfile),
    'docname' => (::File.basename docfile, (::File.extname docfile)),
  }
  paths.update(
    'outfile' => (outfile = document.destination document.site.dest),
    'outdir' => (::File.dirname outfile),
    'outpath' => document.url
  ) unless opts[:source_only]
end

# File lib/jekyll-asciidoc/converter.rb, line 265
def compile_attributes attrs, initial = {}
  if (is_array = ::Array === attrs) || ::Hash === attrs
    attrs.each_with_object(initial) do |entry, new_attrs|
      key, val = is_array ? (((entry.split '=', 2) + ['', '']).slice 0, 2) : entry
      if key.start_with? '!'
        new_attrs[key.slice 1, key.length] = nil
      elsif key.end_with? '!'
        new_attrs[key.chop] = nil
      # we're reserving -name to mean "unset implicit value but allow doc to override"
      elsif key.start_with? '-'
        new_attrs.delete key.slice 1, key.length
      else
        case val
        when ::String
          new_attrs[key] = resolve_attribute_refs val, new_attrs
        when ::Numeric
          new_attrs[key] = val.to_s
        when true
          new_attrs[key] = ''
        when nil, false
          # we may preserve false in the future to mean "unset implicit value but allow doc to override"
          # false already has special meaning for page-layout, so don't coerce it
          new_attrs[key] = key == 'page-layout' ? val : nil
        else
          new_attrs[key] = val
        end
      end
    end
  else
    initial
  end
end

# File lib/jekyll-asciidoc/converter.rb, line 235
def extract_header document
  if (content = document.content)
    header = (header_boundary = HeaderBoundaryRx =~ content) ? $` : content
    # NOTE at this point, excerpt is already set to an instance of Jekyll::Excerpt unless set in front matter
    if ::Jekyll::Page === document || !(::Jekyll::Excerpt === document.data['excerpt'])
      header = '' unless HeaderLineRx.match? header
    else
      document.data['excerpt'] = nil
      if (excerpt_separator = document.data['excerpt_separator'] || @asciidoc_config['excerpt_separator'] ||
          @config['excerpt_separator']).to_s.empty?
        header = '' unless HeaderLineRx.match? header
      else
        header_boundary = 0 unless header_boundary && (HeaderLineRx.match? header)
        if (excerpt_boundary = content.index excerpt_separator, header_boundary)
          header = content.slice 0, excerpt_boundary
        else
          header = content
        end
      end
    end
    header
  else
    ''
  end
end

# File lib/jekyll-asciidoc/converter.rb, line 298
def resolve_attribute_refs text, attrs
  if text.empty?
    text
  elsif text.include? '{'
    text.gsub AttributeReferenceRx do
      ($&.start_with? '\\') ? ($&.slice 1, $&.length) : ((attrs.fetch $1, $&).to_s.chomp '@')
    end
  else
    text
  end
end

# File lib/jekyll-asciidoc/converter.rb, line 310
def resolve_default_layout document, attributes
  layout_attr_name = %(#{@asciidoc_config['page_attribute_prefix']}layout)
  if attributes.key? layout_attr_name
    if ::String === (layout = attributes[layout_attr_name])
      if layout == '~@'
        layout = 'none@'
      elsif (layout.end_with? '@') && ((document.data.key? 'layout') || document.data['layout'])
        layout = %(#{(layout = document.data['layout']).nil? ? 'none' : layout}@)
      else
        layout = nil
      end
    elsif layout.nil?
      layout = 'none'
    else
      layout = layout.to_s
    end
  elsif (document.data.key? 'layout') || document.data['layout']
    layout = %(#{(layout = document.data['layout']).nil? ? 'none' : layout}@)
  else
    layout = '@'
  end
  layout ? { layout_attr_name => layout } : nil
end

# File lib/jekyll-asciidoc/converter.rb, line 261
def symbolize_keys hash
  hash.each_with_object({}) {|(key, val), accum| accum[key.to_sym] = val }
end