#!/usr/bin/perl

# merges the scores found in score-setN into a single scores file
#
# if called with a score set parameter N, only rules that appear in
# that score-setN file will be used (score lines for rules only found
# in other score-set files will be ignored)
#
# <@LICENSE>
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to you under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# </@LICENSE>

use strict;
use warnings;

my %rules;

my $active_rule_set;
$active_rule_set = $ARGV[0] if (defined $ARGV[0] && $ARGV[0] =~ /^[0-3]$/);

if (defined $active_rule_set) {
  open (SCORES, "scores-set$active_rule_set") or die "Cannot open scores-set$active_rule_set: $!";
  while(<SCORES>) {
    next unless /^score (\S+)\s+(-?[\d.]+)$/;
    @{$rules{$1}} = ('0.000', '0.000' ,'0.000', '0.000');
    $rules{$1}[$active_rule_set] = $2;
  }
  close SCORES;
}

for (my $i = 0; $i < 4; $i++) {
  next if (defined $active_rule_set && $i == $active_rule_set);
  open (SCORES, "scores-set$i") or die "Cannot open scores-set$i: $!";
  while(<SCORES>) {
    next unless /^score (\S+)\s+(-?[\d.]+)$/;
    next if (defined $active_rule_set && !exists $rules{$1});
    @{$rules{$1}} = ('0.000', '0.000' ,'0.000', '0.000') unless exists $rules{$1};
    $rules{$1}[$i] = $2;
  }
  close SCORES;
}

open (SCORES, ">scores") or die "Cannot open scores: $!";
  foreach my $rule (sort(keys %rules)) {
    my $line = "score $rule ";
    for (my $i = 0; $i < 30 - length $rule; $i++) {
      $line .= ' ';
    }
    $line .= join(' ', @{$rules{$rule}})."\n";
    print SCORES $line;
  }
close SCORES;