package Gsg::ConfigParse;
use strict;
use warnings;
use Log::Log4perl qw(:easy);
use lib "/usr/local/lib";
use Shellex::Shellex qw(shellex findBin);
use Exporter qw(import);
our @EXPORT_OK = qw(parse_gsg_config);

# https://perlmaven.com/trim
sub trim { my $s = shift; $s =~ s/^\s+|\s+$//g; return $s };

sub parse_gsg_config($$) {

	my $config_path = shift;
	my $logger = shift;
	if ( ! -e $config_path ) {
		$logger->error("$config_path doesn't look like a regular file, exiting...");
		exit 1;
	}
	# Should probably just open with perl, needless shellout TODO
	my $cat_cmd = findBin("cat",$logger);
	my @config_lines = split("\n",shellex("$cat_cmd $config_path",$logger));
	my %config_hash;
	my $line_counter = 1;
	foreach my $line ( @config_lines ) {
		chomp $line;
		if ( $line =~ m/^(.*)\ =\ "(.*)"$/ ) {
			$config_hash{$1} = $2;
		} elsif ( $line =~ m/^(.*)\ =\ \[(.*)\]/ ) {
			my @trimmed_vals;
			my @vals = split(",",$2);
			foreach my $val (@vals) {
				$val =~ /"(.*)"/;
				push(@trimmed_vals,trim($1));
			}
			$config_hash{$1} = \@trimmed_vals;
		} elsif ( $line =~ m/^\#/ ) {
			next;
		} else {
			$logger->error("Couldn't parse config line $line_counter : $line : exiting");
			exit 1;
		}

		$line_counter++;
	}

	return %config_hash;

}

1;