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history map: skip duplicates earlier

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This commit is contained in:
Daniel Friesel 2019-11-16 21:24:35 +01:00
parent 4f2eac9cef
commit cea4b71ca3
1 changed files with 25 additions and 11 deletions
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36
lib/Travelynx/Controller/Traveling.pm
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@ -5,6 +5,7 @@ use DateTime;
use DateTime::Format::Strptime;
use List::Util qw(uniq);
use List::UtilsBy qw(uniq_by);
use List::MoreUtils qw(first_index);
use Travel::Status::DE::IRIS::Stations;
sub homepage {
@ -428,22 +429,35 @@ sub map_history {
grep { exists $location->{$_} } @stations;
my @station_pairs;
my %seen;
for my $journey (@journeys) {
my @route = map { $_->[0] } @{ $journey->{route} };
my @route = map { $_->[0] } @{ $journey->{route} };
my $from_index = first_index { $_ eq $journey->{from_name} } @route;
my $to_index = first_index { $_ eq $journey->{to_name} } @route;
if ( $from_index == -1 or $to_index == -1 ) {
next;
}
@route = @route[ $from_index .. $to_index ];
my $key = join( '|', @route );
if ( $seen{$key} ) {
next;
}
$seen{$key} = 1;
# direction does not matter at the moment
$seen{ join( '|', reverse @route ) } = 1;
my $prev_station = shift @route;
my $within = 0;
for my $station (@route) {
if ( $prev_station eq $journey->{from_name} ) {
$within = 1;
}
if ($within) {
push( @station_pairs, [ $prev_station, $station ] );
}
push( @station_pairs, [ $prev_station, $station ] );
$prev_station = $station;
if ( $station eq $journey->{to_name} ) {
$within = 0;
}
}
}