From 9d928f5cf6bb4ec857bf2b300894d5fee5ec61e2 Mon Sep 17 00:00:00 2001
From: Birte Kristina Friesel <derf@finalrewind.org>
Date: Sat, 25 Nov 2023 10:02:01 +0100
Subject: Add support for stop-specific messages in journeys

---
 lib/Travel/Status/DE/HAFAS/Journey.pm | 26 ++++++++++++++------------
 lib/Travel/Status/DE/HAFAS/Stop.pm    | 34 +++++++++++++++++++++++++++++++++-
 2 files changed, 47 insertions(+), 13 deletions(-)

(limited to 'lib')

diff --git a/lib/Travel/Status/DE/HAFAS/Journey.pm b/lib/Travel/Status/DE/HAFAS/Journey.pm
index d8d63ff..eb00272 100644
--- a/lib/Travel/Status/DE/HAFAS/Journey.pm
+++ b/lib/Travel/Status/DE/HAFAS/Journey.pm
@@ -8,7 +8,8 @@ use 5.014;
 
 use parent 'Class::Accessor';
 use DateTime::Format::Strptime;
-use List::Util qw(any);
+use List::Util   qw(any);
+use Scalar::Util qw(weaken);
 use Travel::Status::DE::HAFAS::Stop;
 
 our $VERSION = '5.00';
@@ -110,17 +111,18 @@ sub new {
 	for my $stop ( @{ $journey->{stopL} // [] } ) {
 		my $loc = $locL->[ $stop->{locX} ];
 
-		push(
-			@stops,
-			{
-				loc          => $loc,
-				stop         => $stop,
-				common       => $opt{common},
-				date         => $date,
-				datetime_ref => $datetime_ref,
-				strp_obj     => $hafas->{strptime_obj},
-			}
-		);
+		my $stopref = {
+			loc          => $loc,
+			stop         => $stop,
+			common       => $opt{common},
+			hafas        => $hafas,
+			date         => $date,
+			datetime_ref => $datetime_ref,
+		};
+
+		weaken( $stopref->{hafas} );
+
+		push( @stops, $stopref );
 
 		$route_end = $loc->name;
 	}
diff --git a/lib/Travel/Status/DE/HAFAS/Stop.pm b/lib/Travel/Status/DE/HAFAS/Stop.pm
index 5763465..5d2ab36 100644
--- a/lib/Travel/Status/DE/HAFAS/Stop.pm
+++ b/lib/Travel/Status/DE/HAFAS/Stop.pm
@@ -29,7 +29,8 @@ sub new {
 	my $common       = $opt{common};
 	my $date         = $opt{date};
 	my $datetime_ref = $opt{datetime_ref};
-	my $strp_obj     = $opt{strp_obj};
+	my $hafas        = $opt{hafas};
+	my $strp_obj     = $opt{hafas}{strptime_obj};
 
 	my $sched_arr = $stop->{aTimeS};
 	my $rt_arr    = $stop->{aTimeR};
@@ -69,6 +70,21 @@ sub new {
 	my $arr_cancelled = $stop->{aCncl};
 	my $dep_cancelled = $stop->{dCncl};
 
+	my @messages;
+	for my $msg ( @{ $stop->{msgL} // [] } ) {
+		if ( $msg->{type} eq 'REM' and defined $msg->{remX} ) {
+			push( @messages,
+				$hafas->add_message( $opt{common}{remL}[ $msg->{remX} ] ) );
+		}
+		elsif ( $msg->{type} eq 'HIM' and defined $msg->{himX} ) {
+			push( @messages,
+				$hafas->add_message( $opt{common}{himL}[ $msg->{himX} ], 1 ) );
+		}
+		else {
+			say "Unknown message type $msg->{type}";
+		}
+	}
+
 	my $tco = {};
 	for my $tco_id ( @{ $stop->{dTrnCmpSX}{tcocX} // [] } ) {
 		my $tco_kv = $common->{tcocL}[$tco_id];
@@ -94,6 +110,7 @@ sub new {
 		is_changed_platform => $changed_platform,
 		platform            => $rt_platform // $sched_platform,
 		load                => $tco,
+		messages            => \@messages,
 	};
 
 	bless( $ref, $obj );
@@ -121,6 +138,15 @@ sub handle_day_change {
 	return $timestr;
 }
 
+sub messages {
+	my ($self) = @_;
+
+	if ( $self->{messages} ) {
+		return @{ $self->{messages} };
+	}
+	return;
+}
+
 sub TO_JSON {
 	my ($self) = @_;
 
@@ -225,6 +251,12 @@ Departure or arrival delay in minutes.
 
 Direction signage from this stop on, undef if unchanged.
 
+=item $journey->messages
+
+List of Travel::Status::DE::HAFAS::Message(3pm) instances related to this stop.
+These typically refer to delay reasons, platform changes, or changes in the
+line number / direction heading.
+
 =item $stop->rt_platform
 
 Actual platform.
-- 
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