#!/usr/bin/env ruby

require 'zipf'
require 'optimist'
require 'tempfile'

def main
  conf = Optimist::options do
    opt :input, "input", :type => :string, :default => '-'
    opt :references, "references", :type => :string, :required => true
    opt :mteval_bin, "cdec's mteval/fast_score", :type => :string, :default => '`/toolbox/cdec-dtrain/mteval/fast_score'
  end

  refs = ReadFile.readlines_strip conf[:references]
  input = ReadFile.new conf[:input]
  i = -1
  while line = input.gets
    line.strip!
    i += 1
    a = Tempfile.new 'pster'
    b = Tempfile.new 'pster'
    a.write line+"\n"
    b.write refs[i]+"\n"
    a.close; b.close
    score = `#{conf[:mteval_bin]} -i #{a.path} -r #{b.path} -m ter 2>/dev/null`
    puts score
    a.unlink; b.unlink
  end
  input.close
end

main