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package Travel::Routing::DE::HAFAS::Utils;
# vim:foldmethod=marker
use strict;
use warnings;
use 5.014;
use parent 'Exporter';
our @EXPORT = qw(handle_day_change);
sub handle_day_change {
my (%opt) = @_;
my $datestr = $opt{date};
my $timestr = $opt{time};
my $offset_days = 0;
# timestr may include a day offset, resulting in DDHHMMSS
if ( length($timestr) == 8 ) {
$offset_days = substr( $timestr, 0, 2, q{} );
}
my $ts = $opt{strp_obj}->parse_datetime("${datestr}T${timestr}");
if ($offset_days) {
$ts->add( days => $offset_days );
}
return $ts;
}
1;
__END__
=head1 NAME
Travel::Routing::DE::HAFAS::Utils - Internal Travel::Routing::DE::HAFAS utilities
=head1 SYNOPSIS
None.
=head1 VERSION
version 0.04
=head1 METHODS
This methods are not meant to be called externally.
=over
=item handle_day_change(I<%opt>)
Use B<strp_obj> to parse HAFAS-provided B<date> and B<time> and handle a day
change (encoded by prefixing B<time> with two additional digits) if necessary.
Returns a DateTime(3pm) object.
=back
=head1 DIAGNOSTICS
None.
=head1 DEPENDENCIES
None.
=head1 AUTHOR
Copyright (C) 2023 by Birte Kristina Friesel E<lt>derf@finalrewind.orgE<gt>
=head1 LICENSE
This program is licensed under the same terms as Perl itself.
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