Result: Add ->datetime, ->countdown and ->countdown_sec accessors

Build.PL

@@ -20,6 +20,8 @@ Module::Build->new(
 		'perl'            => '5.10.1',
 		'Carp'            => 0,
 		'Class::Accessor' => '0.16',
+		'DateTime'        => 0,
+		'DateTime::Format::Strptime' => 0,
 		'Getopt::Long'    => 0,
 		'JSON'            => 0,
 		'List::MoreUtils' => 0,

Changelog

+git HEAD
+
+    * New dependencies: DateTime and DateTime::Format::Strptime
+    * Result: New accessors ->datetime, ->countdown and ->countdown_sec
+
 Travel::Status::DE::DeutscheBahn 2.01 - Sat Oct 10 2015
 
     * Result: Fix ->type accessor (was not working for all backends)

README

@@ -10,6 +10,8 @@ Dependencies
 
  * perl version 5.10.1 or newer
  * Class::Accessor
+ * DateTime
+ * DateTime::Format::Strptime
  * JSON
  * List::MoreUtils
  * LWP::UserAgent (usually shipped by libwww-perl)

lib/Travel/Status/DE/HAFAS.pm

@@ -8,6 +8,8 @@ use utf8;
 no if $] >= 5.018, warnings => 'experimental::smartmatch';
 
 use Carp qw(confess);
+use DateTime;
+use DateTime::Format::Strptime;
 use LWP::UserAgent;
 use POSIX qw(strftime);
 use Travel::Status::DE::HAFAS::Result;
@@ -291,6 +293,14 @@ sub results {
 
 	$self->{results} = [];
 
+	$self->{datetime_now} //= DateTime->now(
+		time_zone => 'Europe/Berlin',
+	);
+	$self->{strptime_obj} //= DateTime::Format::Strptime->new(
+		pattern   => '%d.%m.%YT%H:%M',
+		time_zone => 'Europe/Berlin',
+	);
+
 	for my $tr ( @{ $self->{tree}->findnodes($xp_element) } ) {
 
 		my @message_nodes = $tr->findnodes($xp_msg);
@@ -328,10 +338,14 @@ sub results {
 
 		$train =~ s{#.*$}{};
 
+		my $datetime = $self->{strptime_obj}->parse_datetime("${date}T${time}");
+
 		push(
 			@{ $self->{results} },
 			Travel::Status::DE::HAFAS::Result->new(
 				date         => $date,
+				datetime     => $datetime,
+				datetime_now => $self->{datetime_now},
 				raw_delay    => $delay,
 				raw_e_delay  => $e_delay,
 				messages     => \@messages,

lib/Travel/Status/DE/HAFAS/Result.pm

@@ -11,7 +11,7 @@ use parent 'Class::Accessor';
 our $VERSION = '2.01';
 
 Travel::Status::DE::HAFAS::Result->mk_ro_accessors(
-	qw(date info raw_e_delay raw_delay time train route_end));
+	qw(date datetime info raw_e_delay raw_delay time train route_end));
 
 sub new {
 	my ( $obj, %conf ) = @_;
@@ -21,6 +21,26 @@ sub new {
 	return bless( $ref, $obj );
 }
 
+sub countdown {
+	my ($self) = @_;
+
+	$self->{countdown}
+	  //= $self->datetime->subtract_datetime( $self->{datetime_now} )
+	  ->in_units('minutes');
+
+	return $self->{countdown};
+}
+
+sub countdown_sec {
+	my ($self) = @_;
+
+	$self->{countdown_sec}
+	  //= $self->datetime->subtract_datetime( $self->{datetime_now} )
+	  ->in_units('seconds');
+
+	return $self->{countdown_sec};
+}
+
 sub delay {
 	my ($self) = @_;