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package Travel::Status::DE::VRR;
use strict;
use warnings;
use 5.010;
our $VERSION = '0.00';
use Carp qw(confess);
use Travel::Status::DE::VRR::Result;
use WWW::Mechanize;
use XML::LibXML;
sub new {
my ( $class, %opt ) = @_;
my $mech = WWW::Mechanize->new();
my @now = localtime( time() );
if ( not( $opt{place} and $opt{name} ) ) {
confess('You need to specify a place and a name');
}
if ( $opt{type} and not( $opt{type} ~~ [qw[stop address poi]] ) ) {
confess('type must be stop, address or poi');
}
my $self = {
post => {
command => q{},
deleteAssignedStops_dm => '1',
help => 'Hilfe',
itdDateDay => $now[3],
itdDateMonth => $now[4] + 1,
itdDateYear => $now[5] + 1900,
itdLPxx_id_dm => ':dm',
itdLPxx_mapState_dm => q{},
itdLPxx_mdvMap2_dm => q{},
itdLPxx_mdvMap_dm => '3406199:401077:NAV3',
itdLPxx_transpCompany => 'vrr',
itdLPxx_view => q{},
itdTimeHour => $now[2],
itdTimeMinute => $now[1],
language => 'de',
nameInfo_dm => 'invalid',
nameState_dm => 'empty',
name_dm => $opt{name},
placeInfo_dm => 'invalid',
placeState_dm => 'empty',
place_dm => $opt{place},
ptOptionsActive => '1',
requestID => '0',
reset => 'neue Anfrage',
sessionID => '0',
submitButton => 'anfordern',
typeInfo_dm => 'invalid',
type_dm => $opt{type} // 'stop',
useProxFootSearch => '0',
useRealtime => '1',
},
};
$mech->post( 'http://efa.vrr.de/vrr/XSLT_DM_REQUEST', $self->{post} );
if ( $mech->response->is_error ) {
confess( $mech->response->status_line );
}
my $form = $mech->form_number(1);
for my $input ( $form->find_input( 'dmLineSelection', 'option' ) ) {
$input->check();
}
$mech->click('submitButton');
if ( $mech->response->is_error ) {
confess( $mech->response->status_line );
}
$self->{html} = $mech->response->decoded_content;
$self->{tree} = XML::LibXML->load_html(
string => $self->{html},
recover => 2,
suppress_errors => 1,
suppress_warnings => 1,
);
return bless( $self, $class );
}
sub results {
my ($self) = @_;
my @results;
my $xp_element = XML::LibXML::XPathExpression->new(
'//td[@colspan="3"]/table/tr[starts-with(@class,"bgColor")]');
my @parts = (
[ 'time', './td[2]' ],
[ 'platform', './td[3]' ],
[ 'line', './td[5]' ],
[ 'dest', './td[7]' ],
[ 'info', './td[9]' ],
);
@parts = map { [ $_->[0], XML::LibXML::XPathExpression->new( $_->[1] ) ] }
@parts;
for my $tr ( $self->{tree}->findnodes($xp_element) ) {
my ( $time, $platform, $line, $dest, $info )
= map { ( $tr->findnodes( $_->[1] ) )[0]->textContent } @parts;
push(
@results,
Travel::Status::DE::VRR::Result->new(
time => $time,
platform => $platform,
line => $line,
destination => $dest,
info => $info,
)
);
}
return @results;
}
1;
__END__
=head1 NAME
Travel::Status::DE::VRR - inofficial VRR departure monitor
=head1 SYNOPSIS
use Travel::Status::DE::VRR;
my $status = Travel::Status::DE::VRR->new(
place => 'Essen', name => 'Helenenstr'
);
for my $d ($status->results) {
printf(
"%s %-8s %-5s %s\n",
$d->time, $d->platform, $d->line, $d->destination
);
}
=head1 VERSION
version 0.00
=head1 DESCRIPTION
Travel::Status::DE::VRR is an inofficial interface to the VRR departure
monitor available at
L<http://efa.vrr.de/vrr/XSLT_DM_REQUEST?language=de&itdLPxx_transpCompany=vrr&>.
It shows all upcoming tram/bus/train departures at a given stop.
=head1 METHODS
=over
=item my $status = Travel::Status::DE::VRR->new(I<%opt>)
Returns a new Travel::Status::DE::VRR object. Dies if the request failed.
Arguments:
=over
=item B<place> => I<place>
Name of the place/city
=item B<type> => B<address>|B<poi>|B<stop>
Type of the following I<name>. B<poi> means "point of interest". Defaults to
B<stop> (stop/station name).
=item B<name> => I<name>
address / poi / stop name to list departures for.
=back
=item $status->results
Returns a list of Travel::Status::DE::VRR::Result(3pm) objects, each one describing
one departure.
=back
=head1 DIAGNOSTICS
None.
=head1 DEPENDENCIES
=over
=item * Class::Accessor(3pm)
=item * WWW::Mechanize(3pm)
=item * XML::LibXML(3pm)
=back
=head1 BUGS AND LIMITATIONS
Not all features of the web interface are supported.
=head1 SEE ALSO
efa-m(1), Travel::Status::DE::VRR::Result(3pm).
=head1 AUTHOR
Copyright (C) 2011 by Daniel Friesel E<lt>derf@finalrewind.orgE<gt>
=head1 LICENSE
This module is licensed under the same terms as Perl itself.
|
