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package Travel::Status::DE::EFA::Trip;
use strict;
use warnings;
use 5.010;
use DateTime::Format::Strptime;
use Travel::Status::DE::EFA::Stop;
use parent 'Class::Accessor';
our $VERSION = '3.02';
Travel::Status::DE::EFA::Trip->mk_ro_accessors(
qw(operator product product_class name line number type id dest_name dest_id)
);
sub new {
my ( $obj, %conf ) = @_;
my $json = $conf{json}{transportation} // $conf{json}{leg}{transportation};
my $ref = {
operator => $json->{operator}{name},
product => $json->{product}{name},
product_class => $json->{product}{class},
polyline => $json->{coords},
name => $json->{name},
line => $json->{disassembledName},
number => $json->{properties}{trainNumber},
type => $json->{properties}{trainType} // $json->{product}{name},
id => $json->{id},
dest_name => $json->{destination}{name},
dest_id => $json->{destination}{id},
route_raw => $json->{locationSequence}
// $conf{json}{leg}{stopSequence},
strptime_obj => DateTime::Format::Strptime->new(
pattern => '%Y-%m-%dT%H:%M:%SZ',
time_zone => 'UTC'
),
};
if ( ref( $ref->{polyline} ) eq 'ARRAY' and @{ $ref->{polyline} } == 1 ) {
$ref->{polyline} = $ref->{polyline}[0];
}
return bless( $ref, $obj );
}
sub polyline {
my ( $self, %opt ) = @_;
if ( $opt{fallback} and not @{ $self->{polyline} // [] } ) {
return map { $_->{latlon} } $self->route;
}
return @{ $self->{polyline} // [] };
}
sub parse_dt {
my ( $self, $value ) = @_;
if ($value) {
my $dt = $self->{strptime_obj}->parse_datetime($value);
if ($dt) {
return $dt->set_time_zone('Europe/Berlin');
}
}
return undef;
}
sub route {
my ($self) = @_;
if ( $self->{route} ) {
return @{ $self->{route} };
}
for my $stop ( @{ $self->{route_raw} // [] } ) {
my $chain = $stop;
my ( $platform, $place, $name, $name_full, $stop_id );
while ( $chain->{type} ) {
if ( $chain->{type} eq 'platform' ) {
$platform = $chain->{properties}{platformName}
// $chain->{properties}{platform};
}
elsif ( $chain->{type} eq 'stop' ) {
$name = $chain->{disassembledName};
$name_full = $chain->{name};
$stop_id = $chain->{properties}{stopId};
}
elsif ( $chain->{type} eq 'locality' ) {
$place = $chain->{name};
}
$chain = $chain->{parent};
}
push(
@{ $self->{route} },
Travel::Status::DE::EFA::Stop->new(
sched_arr => $self->parse_dt( $stop->{arrivalTimePlanned} ),
sched_dep => $self->parse_dt( $stop->{departureTimePlanned} ),
rt_arr => $self->parse_dt( $stop->{arrivalTimeEstimated} ),
rt_dep => $self->parse_dt( $stop->{departureTimeEstimated} ),
latlon => $stop->{coord},
full_name => $name_full,
name => $name,
place => $place,
niveau => $stop->{niveau},
platform => $platform,
id => $stop->{id},
stop_id => $stop_id,
)
);
}
delete $self->{route_raw};
return @{ $self->{route} // [] };
}
sub TO_JSON {
my ($self) = @_;
# lazy loading
$self->route;
my $ret = { %{$self} };
delete $ret->{strptime_obj};
return $ret;
}
1;
__END__
=head1 NAME
Travel::Status::DE::EFA::Trip - Information about an individual public transit
trip
=head1 SYNOPSIS
printf( "%s %s -> %s\n", $trip->type, $trip->line // q{}, $trip->dest_name );
for my $stop ( $trip->route ) {
...;
}
=head1 VERSION
version 3.02
=head1 DESCRIPTION
Travel::Status::DE::EFA::Trip describes a single trip / journey of a public
transport line.
=head1 METHODS
=head2 ACCESSORS
Most accessors return undef if the corresponding data is not available.
=over
=item $trip->operator
Operator name.
=item $trip->product
Product name.
=item $trip->product_class
Product class.
=item $trip->name
Trip or line name.
=item $trip->line
Line identifier. Note that this is not necessarily numeric.
=item $trip->number
Trip/journey number.
=item $trip->type
Transport / vehicle type, e.g. "RE" or "Bus".
=item $trip->id
Unique(?) trip ID
=item $trip->dest_name
Name of the trip's destination stop
=item $trip->dest_id
ID of the trip's destination stop
=item $trip->route
List of Travel::Status::DE::EFA::Stop(3pm) objects describing the route of this
trip.
Note: The EFA API requires a stop to be specified when requesting trip details.
The stops returned by this accessor appear to be limited to stops after the
requested stop; earlier ones may be missing.
=back
=head2 INTERNAL
=over
=item $trip = Travel::Status::DE::EFA::Trip->new(I<%data>)
Returns a new Travel::Status::DE::EFA::Trip object. You should not need to
call this.
=item $trip->TO_JSON
Allows the object data to be serialized to JSON.
=back
=head1 DIAGNOSTICS
None.
=head1 DEPENDENCIES
=over
=item Class::Accessor(3pm)
=item DateTime::Format::Strptime(3pm)
=item Travel::Status::DE::EFA::Stop(3pm)
=back
=head1 BUGS AND LIMITATIONS
This module is a Work in Progress.
Its API may change between minor versions.
=head1 SEE ALSO
Travel::Status::DE::EFA(3pm).
=head1 AUTHOR
Copyright (C) 2024 by Birte Kristina Friesel E<lt>derf@finalrewind.orgE<gt>
=head1 LICENSE
This module is licensed under the same terms as Perl itself.
|
