class TiddlyWikiUtils

# File lib/tiddlywikiutils.rb, line 10
def initialize(filepath=nil, debug: false)

  @debug = debug
  import_html(filepath) if filepath

end

# File lib/tiddlywikiutils.rb, line 17
def add(title: '', tags: '', body: '', type: 'text/x-markdown')

  time = Time.now.strftime('%Y%M%d%H%M%S%3N')

  tiddler = "<div created='%s' modified='%s' tags='%s' title='%s' \
    type='%s'>\n<pre>%s</pre>\n</div>" % \
      [time, time, tags, title, type, body]

  id = @tiddlers.last[/(?<=created=")\d+/]    
  pos = @s =~ /#{id}/
  pos2 = @s[pos..-1] =~ /<\/div>/

  puts [id, pos, pos2].inspect if @debug
  puts 'tiddler: ' + tiddler.inspect if @debug

  @s.insert((pos + pos2 + 6), tiddler)
  :added

end

# File lib/tiddlywikiutils.rb, line 37
def import_html(filepath)

  @s = File.read filepath
  a = @s.split(/.*(?=<div created)/)
  a.shift
  a.reject! {|x| x =~ / title="\$/}
  @tiddlers = a[0..-2]
  @tiddlers << a.last.split(/<\/div>/,2).first

end

# File lib/tiddlywikiutils.rb, line 48
def to_html()
  @s
end