class MyOutline

# File lib/myoutline.rb, line 124
def initialize(source, debug: false, allsorted: true, autoupdate: true, 
               topic_url: '$topic', md_path: '.', default_md: 'main.md')
  
  @debug, @topic_url = debug, topic_url
  @md_path = md_path
  @default_md = default_md
  @allsorted, @autoupdate = allsorted, autoupdate

  @outline = Outline.new(source, debug: debug, 
                         allsorted: allsorted, autoupdate: autoupdate)

end

# File lib/myoutline.rb, line 137
def fetch(uri)

  s, remaining = @outline.locate(uri)
  puts 'fetch() s: ' + s.inspect if @debug
  redirect = s =~ /^\[r\] +/i
  return s if redirect 
  
  s ||= @default_md; remaining ||= ''
  
  f = File.join(@md_path, s)
  puts 'f: ' + f.inspect if @debug
  @md = MdEdit.new f, debug: @debug
  r = edit(remaining.sub(/^\//,'').gsub(/\//,' > '))    
  puts 'fetch() r: ' + r.inspect if @debug
  @md.update r
  
  r
end

# File lib/myoutline.rb, line 156
def rebuild(s)
  @outline = Outline.new s
end

# File lib/myoutline.rb, line 189
def to_html()
  
  @outline.build_html do |e|
    
    e.attributes[:href] = @topic_url.sub(/\$topic/, e.text)\
        .sub(/\$id/, e.attributes[:id]).sub(/\$trail/, e.attributes[:trail])\
        .to_s.gsub(/ +/,'-')      
    
  end    
  
end

# File lib/myoutline.rb, line 201
def to_s()
  @outline
end

# File lib/myoutline.rb, line 160
def update(section)
  @md.update section
end

# File lib/myoutline.rb, line 164
def update_tree(s)
  
  mo2 = Outline.new(s, debug: @debug, 
                         allsorted: @allsorted, autoupdate: @autoupdate)
  
  h = @outline.links.to_h
  links = mo2.links
  
  mo2.links.to_h.each do |title, file|
    
    if @debug then
      puts 'title: ' + title.inspect
      puts 'h[title]: ' + h[title].inspect
    end
    
   links.link(title).url = h[title] if h[title]
  end
  
  puts 'before Outline.new: ' + links.to_s(header: false).inspect if @debug
  
  @outline  = Outline.new(links.to_s(header: false), debug: @debug, 
                         allsorted: @allsorted, autoupdate: @autoupdate)
  @outline.autosave
end

# File lib/myoutline.rb, line 208
def edit(s)

  r = @md.find s
  return r if r

  a = s.split(/ *> */)

  if a.length > 1 then

    heading = a.pop.capitalize
    r2 = edit(a.join(' > '))
    n = r2.scan(/^#+/).last.length

    r2 + ("\n%s %s\n" % [('#' * (n+1)), heading])

  end

end