class Pandoc2ReVIEW

# File lib/pandoc2review.rb, line 8
def main
  luadir = ((Pathname.new(__FILE__)).realpath.dirname + '../lua').realpath
  parse_args

  ARGV.each do |file|
    unless File.exist?(file)
      puts "#{file} not exist. skip."
      next
    end
    args = ['pandoc', '-t', File.join(luadir, 'review.lua'), '--lua-filter', File.join(luadir, 'filters.lua')]

    if file =~ /\.md$/i
      args += ['-f', 'markdown-auto_identifiers-smart+east_asian_line_breaks']

      if @disableeaw
        args += ['-M', "softbreak:true"]
      end

      if @hideraw
        args += ['-M', "hideraw:true"]
      end
    end

    if @stripemptydev
      args += ['-M', "stripemptydev:true"]
    end

    if @heading
      args += ["--shift-heading-level-by=#{@heading}"]
    end

    args.push(file)

    stdout, stderr, status = Open3.capture3(*args)
    unless status.success?
      STDERR.puts stderr
      exit 1
    end
    print modify_result(stdout)
  end
end

# File lib/pandoc2review.rb, line 83
def modify_result(s)
  s.gsub('<P2RBR/>') do
    tail = $`[-1]
    head = $'[0]
    return '' if tail.nil? || head.nil?

    space = ' '
    if %i[F W H].include?(Unicode::Eaw.property(tail)) &&
       %i[F W H].include?(Unicode::Eaw.property(head)) &&
       tail !~ /\p{Hangul}/ && head !~ /\p{Hangul}/
      space = ''
    end

    if (%i[F W H].include?(Unicode::Eaw.property(tail)) &&
        tail !~ /\p{Hangul}/) ||
       (%i[F W H].include?(Unicode::Eaw.property(head)) &&
        head !~ /\p{Hangul}/)
      space = ''
    end

    space
  end
end

# File lib/pandoc2review.rb, line 50
def parse_args
  @heading = nil
  @disableeaw = nil
  @hideraw = nil
  @stripemptydev = nil
  opts = OptionParser.new
  opts.banner = 'Usage: pandoc2review [option] file [file ...]'
  opts.version = '1.4'

  opts.on('--help', 'Prints this message and quit.') do
    puts opts.help
    exit 0
  end
  opts.on('--shiftheading num', 'Add <num> to heading level.') do |v|
    @heading = v
  end
  opts.on('--disable-eaw', "Disable compositing a paragraph with Ruby's EAW library.") do
    @disableeaw = true
  end
  opts.on('--hideraw', "Hide raw inline/block with no review format specified.") do
    @hideraw = true
  end
  opts.on('--strip-emptydev', "Strip <div> without any id or class") do
    @stripemptydev = true
  end

  opts.parse!(ARGV)
  if ARGV.size != 1
    puts opts.help
    exit 0
  end
end