add -m help / -m list support

bin/hafas-m

@@ -6,6 +6,7 @@ use 5.010;
 our $VERSION = '1.05';
 
 use Getopt::Long qw(:config no_ignore_case);
+use List::MoreUtils qw(uniq);
 use List::Util qw(first max);
 use Travel::Status::DE::HAFAS;
 
@@ -58,6 +59,16 @@ for my $type ( split( qr{,}, $types ) ) {
 	}
 }
 
+if ( $train_type{help} or $train_type{list} or $train_type{'?'} ) {
+	my @mots
+	  = @{ Travel::Status::DE::HAFAS::get_service($service)->{productbits} };
+	@mots = grep { $_ ne 'x' } @mots;
+	@mots = uniq @mots;
+	@mots = sort @mots;
+	say join( "\n", @mots );
+	exit 0;
+}
+
 my $status = Travel::Status::DE::HAFAS->new(
 	date           => $date,
 	language       => $language,

lib/Travel/Status/DE/HAFAS.pm

@@ -237,7 +237,16 @@ sub get_services {
 	return @services;
 }
 
+# static
 sub get_service {
+	my ($service) = @_;
+
+	$service //= 'DB';
+
+	return $hafas_instance{$service};
+}
+
+sub get_active_service {
 	my ($self) = @_;
 
 	return %{ $hafas_instance{ $self->{active_service} } };