#!/usr/bin/perl

use strict;
use warnings;

our $DEBUG = 0;

my $F = $ARGV[0];

my $reviewers = get_reviewer_stats($F);
show_count($reviewers);

#
#
# METHODS

sub get_reviewer_stats {
    my ($file) = @_;

    my $reviewers = {};
    open(my $I, '<', $file) or die "$!\n";
    while(my $r = <$I>) {
        chomp $r;
        my($x, $y, $z) = split /\:/, $r, 3;

        $z =~ s/^\s+//g;
        $x =~ /\-(\d+)\./;

        push @{$reviewers->{$z}}, $1;
        print "$x: $y: $1: $z\n" if $DEBUG;
    }
    close($I);

    return $reviewers;
}

sub show_count {
    my ($reviewers) = @_;

    foreach my $auth (sort keys %$reviewers) {
        print "$auth: ", scalar(@{$reviewers->{$auth}}), "\n";
    }
}