From c56337cef1d3a4069fae48c1d90953f5194556e0 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Thu, 4 Jun 2015 18:18:18 +0200
Subject: add route_interesting (only useful when full_routes is specified)

---
 lib/Travel/Status/DE/EFA.pm        |  5 ++--
 lib/Travel/Status/DE/EFA/Result.pm | 50 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/lib/Travel/Status/DE/EFA.pm b/lib/Travel/Status/DE/EFA.pm
index 06ff1c2..c134698 100644
--- a/lib/Travel/Status/DE/EFA.pm
+++ b/lib/Travel/Status/DE/EFA.pm
@@ -162,7 +162,7 @@ sub errstr {
 sub sprintf_date {
 	my ($e) = @_;
 
-	if ($e->getAttribute('day') == -1) {
+	if ( $e->getAttribute('day') == -1 ) {
 		return undef;
 	}
 
@@ -176,7 +176,7 @@ sub sprintf_date {
 sub sprintf_time {
 	my ($e) = @_;
 
-	if ($e->getAttribute('minute') == -1) {
+	if ( $e->getAttribute('minute') == -1 ) {
 		return undef;
 	}
 
@@ -322,6 +322,7 @@ sub parse_route {
 				dep_date => sprintf_date( $dates[-1] ),
 				dep_time => sprintf_time( $times[-1] ),
 				stop     => decode( 'UTF-8', $e->getAttribute('name') ),
+				stop_suf => decode( 'UTF-8', $e->getAttribute('nameWO') ),
 				platform => $e->getAttribute('platformName'),
 			}
 		);
diff --git a/lib/Travel/Status/DE/EFA/Result.pm b/lib/Travel/Status/DE/EFA/Result.pm
index f729034..e598ef8 100644
--- a/lib/Travel/Status/DE/EFA/Result.pm
+++ b/lib/Travel/Status/DE/EFA/Result.pm
@@ -4,6 +4,8 @@ use strict;
 use warnings;
 use 5.010;
 
+no if $] >= 5.018, warnings => 'experimental::smartmatch';
+
 use parent 'Class::Accessor';
 
 our $VERSION = '1.09';
@@ -41,6 +43,54 @@ sub route_post {
 	return @{ $self->{next_route} };
 }
 
+sub route_interesting {
+	my ( $self, $max_parts ) = @_;
+
+	my @via = $self->route_post;
+	my ( @via_main, @via_show, $last_stop );
+	$max_parts //= 3;
+
+	for my $stop (@via) {
+		if ( $stop =~ m{ Bf | Hbf | Flughafen | S $ }ox ) {
+			push( @via_main, $stop );
+		}
+	}
+	$last_stop = pop(@via);
+
+	if ( @via_main and $via_main[-1] eq $last_stop ) {
+		pop(@via_main);
+	}
+	if ( @via and $via[-1] eq $last_stop ) {
+		pop(@via);
+	}
+
+	if ( @via_main and @via and $via[0] eq $via_main[0] ) {
+		shift(@via_main);
+	}
+
+	if ( @via < $max_parts ) {
+		@via_show = @via;
+	}
+	else {
+		if ( @via_main >= $max_parts ) {
+			@via_show = ( $via[0] );
+		}
+		else {
+			@via_show = splice( @via, 0, $max_parts - @via_main );
+		}
+
+		while ( @via_show < $max_parts and @via_main ) {
+			my $stop = shift(@via_main);
+			if ( $stop ~~ \@via_show or $stop eq $last_stop ) {
+				next;
+			}
+			push( @via_show, $stop );
+		}
+	}
+
+	return @via_show;
+}
+
 sub TO_JSON {
 	my ($self) = @_;
 
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