#!/usr/bin/perl -w
use strict;
use utf8;

use Data::Printer;

binmode STDIN, 'encoding(UTF-8)' or die;
binmode STDOUT, 'encoding(UTF-8)' or die;
binmode STDERR, 'encoding(UTF-8)' or die;

our @choices;
our %choices;
our @invotes;

sub addchoice {
    my $cho = shift @_;
    $choices{$cho} = { @_, Index => (scalar @choices) };
    push @choices, $cho;
}

while (<>) {
    s/\s+$//;
    next if m/^\s*\#/;
    next unless m/\S/;
    if (m/^([A-Z]+)\s*\=\s*(\S.*)$/) {
	my ($cho, $desc) = ($1,$2);
	my $smaj;
	if ($desc =~ m/\[(\d+):(\d+)\]/) {
	    $smaj = [$1,$2];
	} 
	addchoice($cho, Desc => $desc, Smaj => $smaj);
    } elsif (m/^V:\s+(\S+)\s+(\S.*)/) {
	push @invotes, [ $1, $2 ];
    } else {
	die "invalid input";
    }
}

if (!$choices{FD}) {
    addchoice('FD', Desc => "Further Discussion");
}

our $chofd = $choices{FD};

die "FD has smaj?!" if $chofd->{Smaj};

our @vab; # $vab[$ia][$ib] = V(A,B)

foreach my $iv (@invotes) {
    my ($votestr,$voter) = @$iv;
    eval {
	length $votestr eq @choices or die "wrong vote vector length";
	my @vs = split //, $votestr;
	foreach my $ix (0..$#vs) {
	    my $vchr = $vs[$ix];
	    if ($vchr eq '-') {
		$vs[$ix] = 1000;
	    } elsif ($vchr =~ m/[0-9a-z]/) {
		$vs[$ix] = ord($vchr);
	    } else {
		die "bad vote char";
	    }
	}
	foreach my $ia (0..$#vs) {
	    foreach my $ib (0..$#vs) {
		my $va = $vs[$ia];
		my $vb = $vs[$ib];
		if ($va < $vb) { $vab[$ia][$ib]++; }
		elsif ($vb < $va) { $vab[$ib][$ia]++; }
	    }
	}
    }
    die "voter $voter $@" if $@;
}

print p %choices;
print p @vab;