#!/usr/bin/ruby

require 'fileutils'

FileUtils.mkdir('backup')

Dir.glob('*.emlx') do |filename|
  outfile = File.open(filename+'.temp', 'w')
  infile = File.open(filename, 'r')

  flags = false
  infile.each do |line|
    if flags
      flags = false
      number = line.scan(/\d+/)[0].to_i
      # now actually undelete it
      number &= ~0x02
      # write out the modified line
      outfile.write "\t<integer>#{number}</integer>\n"
    else
      outfile.write line
    end

    if line =~ /\<key\>flags\<\/key\>/
      flags = true
    end

  end

  outfile.close
  infile.close

  FileUtils.mv(filename, "backup/#{filename}")
  FileUtils.mv(filename+".temp", filename)
end