348 lines
9 KiB
Perl
348 lines
9 KiB
Perl
package Travelynx::Command::work;
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# Copyright (C) 2020-2023 Birte Kristina Friesel
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#
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# SPDX-License-Identifier: AGPL-3.0-or-later
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use Mojo::Base 'Mojolicious::Command';
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use Mojo::Promise;
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use DateTime;
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use JSON;
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use List::Util;
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has description => 'Update real-time data of active journeys';
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has usage => sub { shift->extract_usage };
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sub run {
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my ($self) = @_;
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my $now = DateTime->now( time_zone => 'Europe/Berlin' );
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my $checkin_deadline = $now->clone->subtract( hours => 48 );
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my $json = JSON->new;
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if ( -e 'maintenance' ) {
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$self->app->log->debug('work: "maintenance" file found, aborting');
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return;
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}
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my $num_incomplete = $self->app->in_transit->delete_incomplete_checkins(
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earlier_than => $checkin_deadline );
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if ($num_incomplete) {
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$self->app->log->debug("Removed ${num_incomplete} incomplete checkins");
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}
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my $errors = 0;
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for my $entry ( $self->app->in_transit->get_all_active ) {
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if ( -e 'maintenance' ) {
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$self->app->log->debug('work: "maintenance" file found, aborting');
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return;
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}
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my $uid = $entry->{user_id};
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my $dep = $entry->{dep_eva};
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my $arr = $entry->{arr_eva};
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my $train_id = $entry->{train_id};
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if ( $train_id =~ m{[|]} ) {
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$self->app->hafas->get_journey_p( trip_id => $train_id )->then(
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sub {
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my ($journey) = @_;
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my $found_dep;
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my $found_arr;
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for my $stop ( $journey->route ) {
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if ( $stop->loc->eva == $dep ) {
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$found_dep = $stop;
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}
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if ( $arr and $stop->loc->eva == $arr ) {
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$found_arr = $stop;
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last;
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}
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}
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if ( not $found_dep ) {
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$self->app->log->debug(
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"Did not find $dep within journey $train_id");
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return;
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}
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if ( $found_dep->rt_dep ) {
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$self->app->in_transit->update_departure_hafas(
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uid => $uid,
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journey => $journey,
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stop => $found_dep,
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dep_eva => $dep,
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arr_eva => $arr
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);
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if ( $journey->class <= 16
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and $found_dep->rt_dep->epoch > $now->epoch )
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{
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$self->app->add_wagonorder( $uid, 1, $train_id,
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$found_dep->sched_dep, $journey->number );
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$self->app->add_stationinfo( $uid, 1, $journey->id,
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$found_dep->loc->eva );
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}
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}
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if ( $found_arr and $found_arr->rt_arr ) {
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$self->app->in_transit->update_arrival_hafas(
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uid => $uid,
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journey => $journey,
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stop => $found_arr,
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dep_eva => $dep,
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arr_eva => $arr
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);
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if ( $journey->class <= 16
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and $found_arr->rt_arr->epoch - $now->epoch < 600 )
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{
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$self->app->add_wagonorder( $uid, 0, $train_id,
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$found_dep->sched_dep, $journey->number );
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$self->app->add_stationinfo( $uid, 0, $journey->id,
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$found_dep->loc->eva, $found_arr->loc->eva );
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}
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}
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}
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)->catch(
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sub {
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my ($err) = @_;
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if ( $err =~ m{svcResL\[0\][.]err is (?:FAIL|PARAMETER)$} )
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{
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# HAFAS do be weird. These are not actionable.
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$self->app->log->debug("work($uid)/journey: $err");
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}
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else {
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$self->app->log->error("work($uid)/journey: $err");
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}
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}
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)->wait;
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if ( $arr
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and $entry->{real_arr_ts}
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and $now->epoch - $entry->{real_arr_ts} > 600 )
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{
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$self->app->checkout_p(
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station => $arr,
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force => 2,
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dep_eva => $dep,
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arr_eva => $arr,
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uid => $uid
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)->wait;
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}
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next;
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}
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# Note: IRIS data is not always updated in real-time. Both departure and
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# arrival delays may take several minutes to appear, especially in case
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# of large-scale disturbances. We work around this by continuing to
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# update departure data for up to 15 minutes after departure and
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# delaying automatic checkout by at least 10 minutes.
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eval {
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if ( $now->epoch - $entry->{real_dep_ts} < 900 ) {
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my $status = $self->app->iris->get_departures(
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station => $dep,
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lookbehind => 30,
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lookahead => 30
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);
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if ( $status->{errstr} ) {
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die("get_departures($dep): $status->{errstr}\n");
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}
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my ($train) = List::Util::first { $_->train_id eq $train_id }
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@{ $status->{results} };
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if ( not $train ) {
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$self->app->log->debug(
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"could not find train $train_id at $dep\n");
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return;
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}
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$self->app->in_transit->update_departure(
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uid => $uid,
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train => $train,
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dep_eva => $dep,
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arr_eva => $arr,
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route => [ $self->app->iris->route_diff($train) ]
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);
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if ( $train->departure_is_cancelled and $arr ) {
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my $checked_in
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= $self->app->in_transit->update_departure_cancelled(
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uid => $uid,
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train => $train,
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dep_eva => $dep,
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arr_eva => $arr,
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);
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# depending on the amount of users in transit, some time may
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# have passed between fetching $entry from the database and
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# now. Only check out if the user is still checked into this
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# train.
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if ($checked_in) {
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# check out (adds a cancelled journey and resets journey state
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# to checkin
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$self->app->checkout_p(
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station => $arr,
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force => 2,
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dep_eva => $dep,
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arr_eva => $arr,
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uid => $uid
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)->wait;
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}
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}
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else {
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$self->app->add_route_timestamps( $uid, $train, 1 );
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$self->app->add_wagonorder( $uid, 1, $train->train_id,
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$train->sched_departure, $train->train_no );
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$self->app->add_stationinfo( $uid, 1, $train->train_id,
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$dep, $arr );
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}
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}
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};
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if ($@) {
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$errors += 1;
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$self->app->log->error("work($uid)/departure: $@");
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}
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eval {
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if (
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$arr
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and ( not $entry->{real_arr_ts}
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or $now->epoch - $entry->{real_arr_ts} < 600 )
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)
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{
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my $status = $self->app->iris->get_departures(
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station => $arr,
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lookbehind => 20,
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lookahead => 220
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);
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if ( $status->{errstr} ) {
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die("get_departures($arr): $status->{errstr}\n");
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}
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# Note that a train may pass the same station several times.
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# Notable example: S41 / S42 ("Ringbahn") both starts and
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# terminates at Berlin Südkreuz
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my ($train) = List::Util::first {
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$_->train_id eq $train_id
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and $_->sched_arrival
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and $_->sched_arrival->epoch > $entry->{sched_dep_ts}
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}
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@{ $status->{results} };
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$train //= List::Util::first { $_->train_id eq $train_id }
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@{ $status->{results} };
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if ( not $train ) {
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# If we haven't seen the train yet, its arrival is probably
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# too far in the future. This is not critical.
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return;
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}
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my $checked_in = $self->app->in_transit->update_arrival(
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uid => $uid,
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train => $train,
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route => [ $self->app->iris->route_diff($train) ],
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dep_eva => $dep,
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arr_eva => $arr,
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);
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if ( $checked_in and $train->arrival_is_cancelled ) {
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# check out (adds a cancelled journey and resets journey state
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# to destination selection)
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$self->app->checkout_p(
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station => $arr,
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force => 0,
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dep_eva => $dep,
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arr_eva => $arr,
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uid => $uid
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)->wait;
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}
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else {
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$self->app->add_route_timestamps(
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$uid, $train, 0,
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(
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defined $entry->{real_arr_ts}
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and $now->epoch > $entry->{real_arr_ts}
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) ? 1 : 0
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);
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$self->app->add_wagonorder( $uid, 0, $train->train_id,
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$train->sched_departure, $train->train_no );
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$self->app->add_stationinfo( $uid, 0, $train->train_id,
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$dep, $arr );
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}
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}
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elsif ( $entry->{real_arr_ts} ) {
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my ( undef, $error ) = $self->app->checkout_p(
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station => $arr,
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force => 2,
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dep_eva => $dep,
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arr_eva => $arr,
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uid => $uid
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)->catch(
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sub {
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my ($error) = @_;
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$self->app->log->error("work($uid)/arrival: $error");
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$errors += 1;
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}
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)->wait;
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}
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};
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if ($@) {
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$self->app->log->error("work($uid)/arrival: $@");
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$errors += 1;
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}
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eval { };
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}
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my $started_at = $now;
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my $main_finished_at = DateTime->now( time_zone => 'Europe/Berlin' );
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my $worker_duration = $main_finished_at->epoch - $started_at->epoch;
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if ( $self->app->config->{influxdb}->{url} ) {
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if ( $self->app->mode eq 'development' ) {
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$self->app->log->debug( 'POST '
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. $self->app->config->{influxdb}->{url}
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. " worker runtime_seconds=${worker_duration},errors=${errors}"
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);
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}
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else {
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$self->app->ua->post_p( $self->app->config->{influxdb}->{url},
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"worker runtime_seconds=${worker_duration},errors=${errors}" )
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->wait;
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}
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}
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if ( not $self->app->config->{traewelling}->{separate_worker} ) {
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$self->app->start('traewelling');
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}
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# add_wagonorder and add_stationinfo assume a permanently running IOLoop
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# and do not allow Mojolicious commands to wait until they have completed.
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# Hence, some add_wagonorder and add_stationinfo calls made here may not
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# complete before the work command exits, and thus have no effect.
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#
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# This is not ideal and will need fixing at some point. Until then, here
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# is the pragmatic solution for 99% of the associated issues.
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Mojo::Promise->timer(5)->wait;
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}
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1;
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__END__
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=head1 SYNOPSIS
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Usage: index.pl work
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Work Work Work.
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Should be called from a cronjob every three minutes or so.
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