class DepVizDoc

# File lib/depvizdoc.rb, line 29
  def initialize(s='', root: 'platform', 
                 style: default_stylesheet(), path: '.', debug: false)
    
    @style, @root, @debug, @path = style, root, debug, path
    @header = "
<?polyrex schema='items[type]/item[label, url]' delimiter =' # '?>
type: digraph

    "
    build(s)
  end

# File lib/depvizdoc.rb, line 41
def build(s)
  
  puts 'inside build : s: ' + s.inspect if @debug
  return if s.empty?    
  
  lines = s.lines
  lines.shift if lines.first =~ /^<\?depvizdoc\b/

  puts 'DepVizDoc::initialize before DependencyBuilder' if @debug
  @s = tree = DependencyBuilder.new(lines.join).to_s
  puts 'master @s: ' + @s.inspect if @debug
  puts 'DepVizDoc::initialize after DependencyBuilder' if @debug
  
  s2 = tree.lines.map do |line|
    x = line.chomp
    "%s # %s.html" % [x, x[/\w+$/]]
  end.join("\n")
  
  
  s = @root ? (@root + "\n" + s2.lines.map {|x| '  ' + x}.join) : s2
  
  puts 'DepVizDoc::initialize before PxGraphViz' if @debug
  @pxg = PxGraphViz.new(@header + s, style: @style)
  puts 'DepVizDoc::initialize after PxGraphViz' if @debug    
  
end

# File lib/depvizdoc.rb, line 70
  def render(path=@path)
    # generate each HTML file
    items = @s.lines.flatten.map {|x| x.chomp.lstrip }.uniq
    
    FileUtils.mkdir_p File.join(path, 'svg')
    
    items.each do |name|
      
      puts 'DepVizDoc::initialize name: ' + name.inspect if @debug
      
      # generate the dependency chart
      File.write File.join(path, 'svg', name + '_dep.svg'), 
          self.item(name).dependencies.to_svg
      
      rdep = self.item(name).reverse_dependencies
      # generate the reverse dependency chart

      md = "
# #{name}      

## Dependencies

![](#{File.join(path, 'svg', name + '_dep.svg')})

## Reverse dependencies

"

      md << if rdep then
        File.write File.join(path, 'svg', name + '_rdep.svg'), rdep.to_svg      
        "![](%s)" % File.join(path, 'svg', name + '_rdep.svg')
      else
        'none'
      end    

      html = RDiscount.new(Martile.new(md).to_s).to_html
      File.write File.join(path, name + '.html'), html
      
    end    
    
    filepath = File.join(path, 'chart.svg')
    File.write filepath, self.to_svg
    
    'saved to ' + filepath
  end

# File lib/depvizdoc.rb, line 116
def save()
  FileX.mkdir_p @path
  FileX.write  File.join(@path, 'index.svg'), self.to_svg
  render()
end