#!/usr/bin/perl

use strict;
use warnings;

use Getopt::Long;
use Config::Tiny;

sub showusage {
    print <<HELP;
Usage: rtpengine-get-table <option>...

Options:
  -h, --help                print this help message.
  --config-file=<pathname>  use <pathname> as the config file.
  --config-section=<name>   use <section> instead of 'rtpengine'.
  --fallback-table=<index>  use <index> as fallback table instead of 0.
HELP
}

my %options = (
    'help'                => sub { showusage(); exit 0 },
    'config-file'         => '/etc/rtpengine/rtpengine.conf',
    'config-section'      => 'rtpengine',
    'fallback-table'      => -1,
);

Getopt::Long::Configure('require_order');

my $optret = GetOptions(\%options,
    'help|h',
    'config-file=s',
    'config-section=s',
    'fallback-table=i',
);

if (!$optret) {
    showusage();
    exit 1;
}

my $cfg = Config::Tiny->read($options{'config-file'});
if (not defined $cfg) {
    die "error: " . Config::Tiny->errstr . "\n";
}
my $cfg_section = $options{'config-section'};
my $table = $cfg->{$cfg_section}{table} // $options{'fallback-table'};

print "$table\n";

1;