#!/usr/bin/perl
use strict;
use warnings;

my $total = 0;

sub duration
{
  use integer;
  my $seconds = int shift;  

#  my $days = $seconds / (24 * 60 * 60);
#  $seconds %= 24 * 60 * 60;
  my $hours = $seconds / (60 * 60);
  $seconds %= 60 * 60;
  my $minutes = $seconds / 60;
  $seconds %= 60;

  my $out = ' ';
#  $out .= $days . 'd ' if $days;
  $out .= $hours . 'h ' if $hours;
  $out .= $minutes . 'm ' if $minutes;
  $out .= $seconds . 's ' if $seconds || $out eq ' ';

  return substr($out, 1);
}

my @files;

for (@ARGV)
{
  if (-d $_)
  {
    my $dir = $_;
    opendir(DIR, $dir);
    push @files, map {"$dir/$_"} sort grep {!/^\.+$/} readdir DIR;
    closedir DIR;
  }
  else
  {
    push @files, $_;
  }
}

for (@files)
{
  my $cat = "cat";
  $cat = "bzcat" if /\.bz2$/;
  my $time = `$cat $_ | timettyrec`;
  $time =~ s/.*\n// if $time =~ y/\n/\n/ > 1;
  if ($time !~ /^\d/)
  {
    print "$_ isn't being timed correctly. Skipping.\n";
    next;
  }
  $total += $time;
  $time = duration($time) . "\n";
  print ((@files>1?"$_: ":"").$time);
}

print "total: " . duration($total) . "\n" if @files > 1;