#!/usr/bin/ruby
%w[net/imap readline optparse].each do |m| require m end

$file = nil
OptionParser.new do |opts|
  opts.banner = "Usage: spelling-rbead [options]"
  opts.on("-uUSER", "--user=USER", "User to log in as") do |u| $user = u; end
  opts.on("-fADDR", "--from=ADDR", "Search from ADDR") do |a| $from = a; end
  opts.on("-sSUBJ", "--subject=SUBJ", "Search for SUBJ") do |s| $subject = s; end
  opts.on("-mSERVER", "--mailserver=SERVER", "Connect to SERVER") do |m| $mailbox = m; end
  opts.on("-o", "--output=FILE", "Output to FILE") do |f| $file = f; end
  opts.on("-h", "--help", "Get help") do puts opts; $help = true; end
end.parse!

if !$help
  $password = Readline.readline "Password: "
  $subject ||= "Spelling:"

  #Net::IMAP.debug = true
  imap = Net::IMAP.new($mailbox)
  imap.login($user, $password)
  imap.select "inbox"
  n = imap.search("FROM \"#{$from}\" SUBJECT \"#{$subject}\"").last
  if n
    msgs = imap.fetch n, "body[1.text]"
    c = msgs[0].attr["BODY[1.TEXT]"]
    words = c.split("\n")
  end
  imap.logout

  if $file
    open $file, "w" do |f|
      f.puts words
    end
  else
    puts words
  end
end