#!/usr/bin/env perl

# Copyright (c) 2025, R. W. Rodolico
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
#    list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# freebsd_pkg_software
# FreeBSD (pkg) package inventory.
#
# Revision History:
# 2026-10-18 Claude v1.0.0 new sensor, split from unix_software (bug 210)

package freebsd_pkg_software;

use strict;
use warnings;
use version;
our $VERSION = version->declare('v1.0.0');

use FindBin;
use File::Spec;
use lib File::Spec->catdir($FindBin::Bin), File::Spec->catdir("$FindBin::Bin/..");
use library qw(:all);

my $CATEGORY = 'software';
#######################################################
#
# parsePkgInfo( $pkgText )
#
# Parses FreeBSD pkg info lines into old software keys.
#
# Parameters:
#   $pkgText - text from pkg info
#
# Returns:
#   array reference of output lines
#
# Side Effects:
#   none
#
#######################################################
sub parsePkgInfo {
   my $pkgText = shift;
   my @out;
   foreach my $line (split(/\n/, defined($pkgText) ? $pkgText : '')) {
      next unless $line =~ /\S/;
      if ($line =~ /^(.+)-([^\s]+)\s+(.*)$/) {
         my ($name, $version, $description) = ($1, $2, $3);
         push @out, "$CATEGORY\t$name\tversion\t$version";
         push @out, "$CATEGORY\t$name\tdescription\t$description";
      }
   }
   return \@out;
}

#######################################################
#
# main()
#
# Emits software keys.
#
# Parameters:
#   none
#
# Returns:
#   integer exit status (1 wrong OS, 2 not applicable)
#
# Side Effects:
#   runs pkg, writes STDOUT/STDERR
#
#######################################################
sub main {
   if (!checkOS({ 'freebsd' => undef })) {
      print STDERR "unsupported os\n";
      return 1;
   }
   unless (validCommandOnSystem({ 'pkg' => undef })) {
      print STDERR "pkg not found\n";
      return 2;
   }
   my @out = @{parsePkgInfo(runCommand('pkg', 'info'))};
   print join("\n", @out), "\n" if @out;
   return 0;
}

exit main() unless caller;
1;