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#!/usr/bin/env perl
use strict;
use warnings;
use 5.018;
our $VERSION = '0.00';
use Encode qw(decode);
use Getopt::Long qw(:config no_ignore_case);
use List::Util qw(max);
use Travel::Status::DE::IRIS;
use Travel::Status::DE::IRIS::Stations;
my %train_type;
my ( $date, $time );
my $arrivals = 0;
my $filter_via;
my $ignore_late = 0;
my $show_full_route = 0;
my $types = q{};
my $language;
my @output;
binmode( STDOUT, ':encoding(utf-8)' );
GetOptions(
'a|arrivals' => \$arrivals,
'd|date=s' => \$date,
'f|full-route' => \$show_full_route,
'h|help' => sub { show_help(0) },
'l|lang=s' => \$language,
'L|ignore-late' => \$ignore_late,
'm|mot=s' => \$types,
't|time=s' => \$time,
'v|via=s' => \$filter_via,
'V|version' => \&show_version,
) or show_help(1);
if ( @ARGV != 1 ) {
show_help(1);
}
my ($station) = @ARGV;
$filter_via = decode( 'UTF-8', $filter_via );
$station = decode( 'UTF-8', $station );
$station = get_station($station);
for my $type ( split( qr{,}, $types ) ) {
if ( substr( $type, 0, 1 ) eq q{!} ) {
$train_type{ substr( $type, 1 ) } = 0;
}
else {
$train_type{$type} = 1;
}
}
my $status = Travel::Status::DE::IRIS->new(
date => $date,
language => $language,
mot => \%train_type,
station => $station,
time => $time,
mode => $arrivals ? 'arr' : 'dep',
);
sub get_station {
my ($input_name) = @_;
my @stations
= Travel::Status::DE::IRIS::Stations::get_station_by_name($input_name);
if ( @stations == 0 ) {
say STDERR "No station matches '$input_name'";
exit(1);
}
elsif ( @stations == 1 ) {
return $stations[0][0];
}
else {
say STDERR "The input '$input_name' is ambiguous. Please choose one "
. 'of the following:';
say STDERR join( "\n", map { $_->[1] } @stations );
exit(1);
}
}
sub show_help {
my ($code) = @_;
print 'Usage: db-iris [-m <motlist>] [-t <time>] '
. "[-v <via>] <station>\n"
. "See also: man db-iris\n";
exit $code;
}
sub show_version {
say "db-iris version ${VERSION}";
exit 0;
}
sub display_result {
my (@lines) = @_;
my @line_length;
if ( not @lines ) {
die("Nothing to show\n");
}
for my $i ( 0 .. 5 ) {
$line_length[$i] = max map { length( $_->[$i] ) } @lines;
}
for my $line (@lines) {
printf(
join( q{ }, ( map { "%-${_}s" } @line_length ) ) . "\n",
@{$line}[ 0 .. 5 ]
);
if ($show_full_route) {
print "\n" . $line->[6] . "\n\n\n";
}
}
return;
}
if ( my $err = $status->errstr ) {
say STDERR "Request error: ${err}";
exit 2;
}
for my $d ( $status->results() ) {
my @via;
@via = $d->route;
if ( $filter_via and not( first { $_ =~ m{$filter_via}io } @via ) ) {
next;
}
if ( $ignore_late and $d->delay ) {
next;
}
my $delay = q{};
if ( $d->delay ) {
$delay = ' +' . $d->delay;
}
if ( $d->is_cancelled ) {
$delay = ' CANCELED';
}
push(
@output,
[
$d->time . $delay,
$d->train,
$arrivals ? q{} : join( q{ }, $d->route_interesting ),
$d->route_end,
$d->platform,
join( ' -- ', $d->info ),
join( "\n", $d->route ),
]
);
}
display_result(@output);
__END__
=head1 NAME
db-iris - Interface to the DeutscheBahn online departure monitor
=head1 SYNOPSIS
B<db-iris> I<station>
=head1 VERSION
version 0.00
=head1 DESCRIPTION
db-iris is an interface to the DeutscheBahn departure monitor
available at L<https://iris.noncd.db.de/wbt/js/index.html>.
It requests all departures at I<station> and lists them on stdout, similar to
the big departure screens installed at most main stations.
=head1 OPTIONS
=over
=item B<-V>, B<--version>
Show version information.
=back
=head1 EXIT STATUS
Zero unless things went wrong.
=head1 CONFIGURATION
None.
=head1 DEPENDENCIES
=over
=item * Class::Accessor(3pm)
=item * DateTime(3pm)
=item * LWP::UserAgent(3pm)
=item * XML::LibXML(3pm)
=back
=head1 BUGS AND LIMITATIONS
Todo.
=head1 AUTHOR
Copyright (C) 2013-2014 by Daniel Friesel E<lt>derf@finalrewind.orgE<gt>
=head1 LICENSE
This program is licensed under the same terms as Perl itself.
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