From b0a9973139fe13cecc14185b6c07262c4c114fc7 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Sun, 17 Sep 2017 15:10:32 +0200
Subject: Add API and CLI output for cancelled route parts (delay -9999)

---
 bin/efa                                 |  5 ++++-
 lib/Travel/Routing/DE/EFA/Route/Part.pm | 15 +++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/bin/efa b/bin/efa
index 36ee898..44fa754 100755
--- a/bin/efa
+++ b/bin/efa
@@ -214,7 +214,10 @@ sub display_routes {
 sub display_connection {
 	my ($c) = @_;
 
-	if ( $c->delay ) {
+	if ( $c->is_cancelled ) {
+		say '# FAHRT FÄLLT AUS';
+	}
+	elsif ( $c->delay ) {
 		printf( "# +%d,  Plan: %s -> %s\n",
 			$c->delay, $c->departure_stime, $c->arrival_stime );
 	}
diff --git a/lib/Travel/Routing/DE/EFA/Route/Part.pm b/lib/Travel/Routing/DE/EFA/Route/Part.pm
index cffe53d..c9ebfd9 100644
--- a/lib/Travel/Routing/DE/EFA/Route/Part.pm
+++ b/lib/Travel/Routing/DE/EFA/Route/Part.pm
@@ -82,6 +82,15 @@ sub footpath_parts {
 	return;
 }
 
+sub is_cancelled {
+	my ($self) = @_;
+
+	if ( $self->{delay} and $self->{delay} eq '-9999' ) {
+		return 1;
+	}
+	return;
+}
+
 # DEPRECATED
 sub extra {
 	my ($self) = @_;
@@ -287,6 +296,12 @@ connection between two stops), so the B<footpath> accessors contain redundant
 information. Other values such as "BEFORE" may also be returned, but this is
 unknown at this point.
 
+=item $part->is_cancelled
+
+Returns true if this part of the route has been cancelled (i.e., the entire
+route is probably useless), false otherwise.  For unknown reasons, EFA may
+sometimes return routes which contain cancelled departures.
+
 =item $part->regular_notes
 
 Remarks about the line serving this connaction part. Returns a list of
-- 
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