From f09d59986998f2210314e38a1ad72d77fcfac067 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Sun, 25 Jun 2017 11:36:38 +0200
Subject: Interpret lookahead / lookbehind with 1-minute granularity

---
 lib/Travel/Status/DE/IRIS.pm | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

(limited to 'lib/Travel')

diff --git a/lib/Travel/Status/DE/IRIS.pm b/lib/Travel/Status/DE/IRIS.pm
index aab0788..43993b0 100644
--- a/lib/Travel/Status/DE/IRIS.pm
+++ b/lib/Travel/Status/DE/IRIS.pm
@@ -31,7 +31,7 @@ sub new {
 		developer_mode => $opt{developer_mode},
 		iris_base      => $opt{iris_base}
 		  // 'http://iris.noncd.db.de/iris-tts/timetable',
-		lookahead  => $opt{lookahead}  // ( 3 * 60 ),
+		lookahead  => $opt{lookahead}  // ( 2 * 60 ),
 		lookbehind => $opt{lookbehind} // ( 0 * 60 ),
 		main_cache => $opt{main_cache},
 		rt_cache   => $opt{realtime_cache},
@@ -88,13 +88,25 @@ sub new {
 		return $self;
 	}
 
+	my $lookahead_steps = int( $self->{lookahead} / 60 );
+	if ( ( 60 - $self->{datetime}->minute ) < ( $self->{lookahead} % 60 ) ) {
+		say "lookahead: ${lookahead_steps}++";
+		$lookahead_steps++;
+	}
+	my $lookbehind_steps = int( $self->{lookbehind} / 60 );
+	if ( $self->{datetime}->minute < ( $self->{lookbehind} % 60 ) ) {
+		say "lookbehind: ${lookbehind_steps}++";
+		$lookbehind_steps++;
+	}
+
 	my $dt_req = $self->{datetime}->clone;
-	for ( 1 .. int( $self->{lookahead} / 60 ) ) {
-		$self->get_timetable( $self->{station}{uic}, $dt_req );
+	$self->get_timetable( $self->{station}{uic}, $dt_req );
+	for ( 1 .. $lookahead_steps ) {
 		$dt_req->add( hours => 1 );
+		$self->get_timetable( $self->{station}{uic}, $dt_req );
 	}
 	$dt_req = $self->{datetime}->clone;
-	for ( 1 .. int( $self->{lookbehind} / 60 ) ) {
+	for ( 1 .. $lookbehind_steps ) {
 		$dt_req->subtract( hours => 1 );
 		$self->get_timetable( $self->{station}{uic}, $dt_req );
 	}
-- 
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