845 lines
18 KiB
Perl
Executable file
845 lines
18 KiB
Perl
Executable file
#!/usr/bin/env perl
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use Mojolicious::Lite;
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use Mojolicious::Plugin::Authentication;
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use Cache::File;
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use DateTime;
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use DBI;
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use Encode qw(decode);
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use Geo::Distance;
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use List::Util qw(first);
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use List::MoreUtils qw(after_incl before_incl);
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use Travel::Status::DE::IRIS;
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use Travel::Status::DE::IRIS::Stations;
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our $VERSION = qx{git describe --dirty} || 'experimental';
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my $cache_iris_main = Cache::File->new(
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cache_root => $ENV{TRAVELYNX_IRIS_CACHE} // '/tmp/dbf-iris-main',
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default_expires => '6 hours',
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lock_level => Cache::File::LOCK_LOCAL(),
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);
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my $cache_iris_rt = Cache::File->new(
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cache_root => $ENV{TRAVELYNX_IRISRT_CACHE} // '/tmp/dbf-iris-realtime',
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default_expires => '70 seconds',
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lock_level => Cache::File::LOCK_LOCAL(),
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);
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my $dbname = $ENV{TRAVELYNX_DB_FILE} // 'travelynx.sqlite';
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my %action_type = (
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checkin => 1,
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checkout => 2,
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undo => 3,
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);
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app->plugin(authentication => {
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autoload_user => 1,
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session_key => 'foodor',
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load_user => sub {
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my ($app, $uid) = @_;
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if ($uid == 1) {
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return {
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name => 'derf',
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};
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}
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return undef;
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},
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validate_user => sub {
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my ($c, $username, $password, $extradata) = @_;
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if ($username eq 'derf' and $password eq 'hallo') {
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return 1;
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}
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return undef;
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},
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});
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app->defaults( layout => 'default' );
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app->attr(
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add_station_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{
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insert into stations (ds100, name) values (?, ?)
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}
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);
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}
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);
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app->attr(
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add_user_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{
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insert into users (name) values (?)
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}
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);
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}
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);
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app->attr(
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checkin_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{
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insert into user_actions (
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user_id, action_id, station_id, action_time,
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train_type, train_line, train_no, train_id,
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sched_time, real_time,
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route, messages
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) values (
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?, $action_type{checkin}, ?, ?,
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?, ?, ?, ?,
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?, ?,
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?, ?
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)
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}
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);
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},
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);
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app->attr(
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checkout_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{
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insert into user_actions (
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user_id, action_id, station_id, action_time,
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train_type, train_line, train_no, train_id,
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sched_time, real_time,
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route, messages
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) values (
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?, $action_type{checkout}, ?, ?,
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?, ?, ?, ?,
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?, ?,
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?, ?
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)
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}
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);
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}
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);
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app->attr(
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dbh => sub {
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my ($self) = @_;
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return DBI->connect( "dbi:SQLite:dbname=${dbname}", q{}, q{} );
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}
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);
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app->attr(
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get_all_actions_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{
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select action_id, action_time, stations.ds100, stations.name,
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train_type, train_line, train_no, train_id,
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sched_time, real_time,
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route, messages
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from user_actions
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left outer join stations on station_id = stations.id
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where user_id = ?
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order by action_time desc
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}
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);
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}
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);
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app->attr(
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get_last_actions_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{
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select action_id, action_time, stations.ds100, stations.name,
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train_type, train_line, train_no, train_id,
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sched_time, real_time,
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route, messages
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from user_actions
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left outer join stations on station_id = stations.id
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where user_id = ?
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order by action_time desc
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limit 10
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}
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);
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}
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);
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app->attr(
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get_userid_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{select id from users where name = ?});
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}
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);
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app->attr(
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get_stationid_by_ds100_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{select id from stations where ds100 = ?});
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}
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);
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app->attr(
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get_stationid_by_name_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{select id from stations where name = ?});
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}
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);
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app->attr(
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undo_query => sub {
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my ($self) = @_;
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return $self->app->dbh->prepare(
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qq{
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insert into user_actions (
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user_id, action_id, action_time
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) values (
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?, $action_type{undo}, ?
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)
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}
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);
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},
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);
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sub epoch_to_dt {
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my ($epoch) = @_;
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# Bugs (and user errors) may lead to undefined timestamps. Set them to
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# 1970-01-01 to avoid crashing and show obviously wrong data instead.
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$epoch //= 0;
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return DateTime->from_epoch(
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epoch => $epoch,
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time_zone => 'Europe/Berlin'
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);
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}
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sub get_departures {
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my ( $station, $lookbehind ) = @_;
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$lookbehind //= 60;
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my @station_matches
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= Travel::Status::DE::IRIS::Stations::get_station($station);
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if ( @station_matches == 1 ) {
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$station = $station_matches[0][0];
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my $status = Travel::Status::DE::IRIS->new(
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station => $station,
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main_cache => $cache_iris_main,
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realtime_cache => $cache_iris_rt,
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lookbehind => 20,
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datetime => DateTime->now( time_zone => 'Europe/Berlin' )
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->subtract( minutes => $lookbehind ),
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lookahead => $lookbehind + 10,
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);
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return {
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results => [ $status->results ],
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errstr => $status->errstr,
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station_ds100 =>
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( $status->station ? $status->station->{ds100} : 'undef' ),
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station_name =>
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( $status->station ? $status->station->{name} : 'undef' ),
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};
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}
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elsif ( @station_matches > 1 ) {
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return {
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results => [],
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errstr => 'Ambiguous station name',
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};
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}
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else {
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return {
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results => [],
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errstr => 'Unknown station name',
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};
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}
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}
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sub get_station {
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my ($station_name) = @_;
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my @candidates
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= Travel::Status::DE::IRIS::Stations::get_station($station_name);
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if ( @candidates == 1 ) {
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return $candidates[0];
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}
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return undef;
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}
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helper 'checkin' => sub {
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my ( $self, $station, $train_id ) = @_;
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my $status = get_departures($station);
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if ( $status->{errstr} ) {
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return ( undef, $status->{errstr} );
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}
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else {
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my ($train)
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= first { $_->train_id eq $train_id } @{ $status->{results} };
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if ( not defined $train ) {
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return ( undef, "Train ${train_id} not found" );
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}
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else {
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my $user = $self->get_user_status;
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if ( $user->{checked_in} ) {
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# If a user is already checked in, we assume that they forgot to
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# check out and do it for them.
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# XXX this is an ugly workaround for the UNIQUE constraint on
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# (user id, action timestamp): Ensure that checkout and re-checkin
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# work even if the previous checkin was less than a second ago.
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sleep(1);
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$self->checkout( $station, 1 );
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# XXX same workaround: We can't checkin immediately after checkout.
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sleep(1);
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}
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my $success = $self->app->checkin_query->execute(
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$self->get_user_id,
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$self->get_station_id(
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ds100 => $status->{station_ds100},
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name => $status->{station_name}
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),
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DateTime->now( time_zone => 'Europe/Berlin' )->epoch,
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$train->type,
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$train->line_no,
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$train->train_no,
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$train->train_id,
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$train->sched_departure->epoch,
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$train->departure->epoch,
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join( '|', $train->route ),
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join( '|',
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map { ( $_->[0] ? $_->[0]->epoch : q{} ) . ':' . $_->[1] }
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$train->messages )
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);
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if ( defined $success ) {
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return ( $train, undef );
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}
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else {
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return ( undef, 'INSERT failed' );
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}
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}
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}
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};
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helper 'undo' => sub {
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my ($self) = @_;
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my $uid = $self->get_user_id;
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$self->app->get_last_actions_query->execute($uid);
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my $rows = $self->app->get_last_actions_query->fetchall_arrayref;
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if ( @{$rows} and $rows->[0][0] == $action_type{undo} ) {
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return 'Nested undo (undoing an undo) is not supported';
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}
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if ( @{$rows} > 1 and $rows->[1][0] == $action_type{undo} ) {
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return 'Repeated undo is not supported';
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}
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my $success
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= $self->app->undo_query->execute( $self->get_user_id,
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DateTime->now( time_zone => 'Europe/Berlin' )->epoch,
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);
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if ( defined $success ) {
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return;
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}
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else {
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return 'INSERT failed';
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}
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};
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helper 'checkout' => sub {
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my ( $self, $station, $force ) = @_;
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my $status = get_departures( $station, 180 );
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my $user = $self->get_user_status;
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my $train_id = $user->{train_id};
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if ( not $user->{checked_in} ) {
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return 'You are not checked into any train';
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}
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if ( $status->{errstr} and not $force ) {
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return $status->{errstr};
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}
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my ($train)
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= first { $_->train_id eq $train_id } @{ $status->{results} };
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if ( not defined $train ) {
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if ($force) {
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my $success = $self->app->checkout_query->execute(
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$self->get_user_id,
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$self->get_station_id(
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ds100 => $status->{station_ds100},
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name => $status->{station_name}
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),
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DateTime->now( time_zone => 'Europe/Berlin' )->epoch,
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undef, undef, undef, undef, undef, undef,
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undef, undef
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);
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if ( defined $success ) {
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return;
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}
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else {
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return 'INSERT failed';
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}
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}
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else {
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return "Train ${train_id} not found";
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}
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}
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else {
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my $success = $self->app->checkout_query->execute(
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$self->get_user_id,
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$self->get_station_id(
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ds100 => $status->{station_ds100},
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name => $status->{station_name}
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),
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DateTime->now( time_zone => 'Europe/Berlin' )->epoch,
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$train->type,
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$train->line_no,
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$train->train_no,
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$train->train_id,
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$train->sched_arrival ? $train->sched_arrival->epoch : undef,
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$train->arrival ? $train->arrival->epoch : undef,
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join( '|', $train->route ),
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join( '|',
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map { ( $_->[0] ? $_->[0]->epoch : q{} ) . ':' . $_->[1] }
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$train->messages )
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);
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if ( defined $success ) {
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return;
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}
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else {
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return 'INSERT failed';
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}
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}
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};
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helper 'get_station_id' => sub {
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my ( $self, %opt ) = @_;
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$self->app->get_stationid_by_ds100_query->execute( $opt{ds100} );
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my $rows = $self->app->get_stationid_by_ds100_query->fetchall_arrayref;
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if ( @{$rows} ) {
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return $rows->[0][0];
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}
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else {
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$self->app->add_station_query->execute( $opt{ds100}, $opt{name} );
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$self->app->get_stationid_by_ds100_query->execute( $opt{ds100} );
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my $rows = $self->app->get_stationid_by_ds100_query->fetchall_arrayref;
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return $rows->[0][0];
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}
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};
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helper 'get_user_name' => sub {
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my ($self) = @_;
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my $user = $self->req->headers->header('X-Remote-User') // 'dev';
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return $user;
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};
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helper 'get_user_id' => sub {
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my ( $self, $user_name ) = @_;
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$user_name //= $self->get_user_name;
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if ( not -e $dbname ) {
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$self->app->dbh->do(
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qq{
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create table users (
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id integer primary key,
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name char(64) not null unique
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)
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}
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);
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$self->app->dbh->do(
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qq{
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create table stations (
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id integer primary key,
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ds100 char(16) not null unique,
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name char(64) not null unique
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)
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}
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);
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$self->app->dbh->do(
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qq{
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create table user_actions (
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user_id int not null,
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action_id int not null,
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station_id int,
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action_time int not null,
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train_type char(16),
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train_line char(16),
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train_no char(16),
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train_id char(128),
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sched_time int,
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real_time int,
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route text,
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messages text,
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primary key (user_id, action_time)
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)
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}
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);
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}
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$self->app->get_userid_query->execute($user_name);
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my $rows = $self->app->get_userid_query->fetchall_arrayref;
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if ( @{$rows} ) {
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return $rows->[0][0];
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}
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else {
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$self->app->add_user_query->execute($user_name);
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$self->app->get_userid_query->execute($user_name);
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my $rows = $self->app->get_userid_query->fetchall_arrayref;
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return $rows->[0][0];
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}
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};
|
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helper 'get_user_travels' => sub {
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my ( $self, $limit ) = @_;
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|
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my $uid = $self->get_user_id;
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my $query = $self->app->get_all_actions_query;
|
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if ($limit) {
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$query = $self->app->get_last_actions_query;
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}
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$query->execute($uid);
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my @travels;
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my $prev_action = 0;
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|
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while ( my @row = $query->fetchrow_array ) {
|
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my (
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$action, $raw_ts, $ds100, $name,
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$train_type, $train_line, $train_no, $train_id,
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$raw_sched_ts, $raw_real_ts, $raw_route, $raw_messages
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) = @row;
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$name = decode( 'UTF-8', $name );
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$raw_route = decode( 'UTF-8', $raw_route );
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$raw_messages = decode( 'UTF-8', $raw_messages );
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|
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if ( $action == $action_type{checkout} ) {
|
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push(
|
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@travels,
|
|
{
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to_name => $name,
|
|
sched_arrival => epoch_to_dt($raw_sched_ts),
|
|
rt_arrival => epoch_to_dt($raw_real_ts),
|
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type => $train_type,
|
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line => $train_line,
|
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no => $train_no,
|
|
messages => $raw_messages
|
|
? [ split( qr{[|]}, $raw_messages ) ]
|
|
: undef,
|
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route => $raw_route ? [ split( qr{[|]}, $raw_route ) ]
|
|
: undef,
|
|
completed => 0,
|
|
}
|
|
);
|
|
}
|
|
elsif ( $action == $action_type{checkin}
|
|
and $prev_action == $action_type{checkout} )
|
|
{
|
|
my $ref = $travels[-1];
|
|
$ref->{from_name} = $name;
|
|
$ref->{completed} = 1;
|
|
$ref->{sched_departure} = epoch_to_dt($raw_sched_ts),
|
|
$ref->{rt_departure} = epoch_to_dt($raw_real_ts),
|
|
$ref->{type} //= $train_type;
|
|
$ref->{line} //= $train_line;
|
|
$ref->{no} //= $train_no;
|
|
$ref->{messages} //= [ split( qr{[|]}, $raw_messages ) ];
|
|
$ref->{route} //= [ split( qr{[|]}, $raw_route ) ];
|
|
}
|
|
$prev_action = $action;
|
|
}
|
|
|
|
return @travels;
|
|
};
|
|
|
|
helper 'get_user_status' => sub {
|
|
my ($self) = @_;
|
|
|
|
my $uid = $self->get_user_id;
|
|
$self->app->get_last_actions_query->execute($uid);
|
|
my $rows = $self->app->get_last_actions_query->fetchall_arrayref;
|
|
|
|
if ( @{$rows} ) {
|
|
my $now = DateTime->now( time_zone => 'Europe/Berlin' );
|
|
|
|
my @cols = @{ $rows->[0] };
|
|
if ( @{$rows} > 2 and $rows->[0][0] == $action_type{undo} ) {
|
|
@cols = @{ $rows->[2] };
|
|
}
|
|
|
|
my $ts = epoch_to_dt( $cols[1] );
|
|
my $checkin_station_name = decode( 'UTF-8', $cols[3] );
|
|
my @route = split( qr{[|]}, decode( 'UTF-8', $cols[10] // q{} ) );
|
|
my @route_after;
|
|
my $is_after = 0;
|
|
for my $station (@route) {
|
|
if ( $station eq $checkin_station_name ) {
|
|
$is_after = 1;
|
|
}
|
|
if ($is_after) {
|
|
push( @route_after, $station );
|
|
}
|
|
}
|
|
return {
|
|
checked_in => ( $cols[0] == $action_type{checkin} ),
|
|
timestamp => $ts,
|
|
timestamp_delta => $now->epoch - $ts->epoch,
|
|
station_ds100 => $cols[2],
|
|
station_name => $cols[3],
|
|
train_type => $cols[4],
|
|
train_line => $cols[5],
|
|
train_no => $cols[6],
|
|
train_id => $cols[7],
|
|
route => \@route,
|
|
route_after => \@route_after,
|
|
};
|
|
}
|
|
return {
|
|
checked_in => 0,
|
|
timestamp => 0
|
|
};
|
|
};
|
|
|
|
helper 'get_travel_distance' => sub {
|
|
my ( $self, $from, $to, $route_ref ) = @_;
|
|
|
|
my $distance = 0;
|
|
my $geo = Geo::Distance->new();
|
|
my @route = after_incl { $_ eq $from } @{$route_ref};
|
|
@route = before_incl { $_ eq $to } @route;
|
|
|
|
if ( @route < 2 ) {
|
|
|
|
# I AM ERROR
|
|
return 0;
|
|
}
|
|
|
|
my $prev_station = get_station( shift @route );
|
|
if ( not $prev_station ) {
|
|
return 0;
|
|
}
|
|
|
|
for my $station_name (@route) {
|
|
if ( my $station = get_station($station_name) ) {
|
|
$distance += $geo->distance( 'kilometer', $prev_station->[3],
|
|
$prev_station->[4], $station->[3], $station->[4] );
|
|
$prev_station = $station;
|
|
}
|
|
}
|
|
|
|
return $distance;
|
|
};
|
|
|
|
helper 'navbar_class' => sub {
|
|
my ( $self, $path ) = @_;
|
|
|
|
if ( $self->req->url eq $self->url_for($path) ) {
|
|
return 'active';
|
|
}
|
|
return q{};
|
|
};
|
|
|
|
get '/' => sub {
|
|
my ($self) = @_;
|
|
$self->render( 'landingpage', with_geolocation => 1 );
|
|
};
|
|
|
|
post '/action' => sub {
|
|
my ($self) = @_;
|
|
my $params = $self->req->json;
|
|
|
|
if ( not exists $params->{action} ) {
|
|
$params = $self->req->params->to_hash;
|
|
}
|
|
|
|
if ( not $params->{action} ) {
|
|
$self->render(
|
|
json => {
|
|
success => 0,
|
|
error => 'Missing action value',
|
|
},
|
|
status => 400,
|
|
);
|
|
return;
|
|
}
|
|
|
|
my $station = $params->{station};
|
|
|
|
if ( $params->{action} eq 'checkin' ) {
|
|
|
|
my ( $train, $error )
|
|
= $self->checkin( $params->{station}, $params->{train}, );
|
|
|
|
if ($error) {
|
|
$self->render(
|
|
json => {
|
|
success => 0,
|
|
error => $error,
|
|
},
|
|
);
|
|
}
|
|
else {
|
|
$self->render(
|
|
json => {
|
|
success => 1,
|
|
},
|
|
);
|
|
}
|
|
}
|
|
elsif ( $params->{action} eq 'checkout' ) {
|
|
my $error = $self->checkout( $params->{station}, $params->{force}, );
|
|
|
|
if ($error) {
|
|
$self->render(
|
|
json => {
|
|
success => 0,
|
|
error => $error,
|
|
},
|
|
);
|
|
}
|
|
else {
|
|
$self->render(
|
|
json => {
|
|
success => 1,
|
|
},
|
|
);
|
|
}
|
|
}
|
|
elsif ( $params->{action} eq 'undo' ) {
|
|
my $error = $self->undo;
|
|
if ($error) {
|
|
$self->render(
|
|
json => {
|
|
success => 0,
|
|
error => $error,
|
|
},
|
|
);
|
|
}
|
|
else {
|
|
$self->render(
|
|
json => {
|
|
success => 1,
|
|
},
|
|
);
|
|
}
|
|
}
|
|
else {
|
|
$self->render(
|
|
json => {
|
|
success => 0,
|
|
error => 'invalid action value',
|
|
},
|
|
status => 400,
|
|
);
|
|
}
|
|
};
|
|
|
|
get '/a/history' => sub {
|
|
my ($self) = @_;
|
|
|
|
$self->render('history');
|
|
};
|
|
|
|
get '/x/about' => sub {
|
|
my ($self) = @_;
|
|
|
|
$self->render( 'about', version => $VERSION );
|
|
};
|
|
|
|
post '/x/geolocation' => sub {
|
|
my ($self) = @_;
|
|
|
|
my $lon = $self->param('lon');
|
|
my $lat = $self->param('lat');
|
|
|
|
if ( not $lon or not $lat ) {
|
|
$self->render( json => { error => 'Invalid lon/lat received' } );
|
|
}
|
|
else {
|
|
my @candidates = map {
|
|
{
|
|
ds100 => $_->[0][0],
|
|
name => $_->[0][1],
|
|
eva => $_->[0][2],
|
|
lon => $_->[0][3],
|
|
lat => $_->[0][4],
|
|
distance => $_->[1],
|
|
}
|
|
} Travel::Status::DE::IRIS::Stations::get_station_by_location( $lon,
|
|
$lat, 5 );
|
|
$self->render(
|
|
json => {
|
|
candidates => [@candidates],
|
|
}
|
|
);
|
|
}
|
|
|
|
};
|
|
|
|
get '/x/login' => sub {
|
|
my ($self) = @_;
|
|
$self->render('login');
|
|
};
|
|
|
|
get '/x/register' => sub {
|
|
my ($self) = @_;
|
|
$self->render('register');
|
|
};
|
|
|
|
get '/*station' => sub {
|
|
my ($self) = @_;
|
|
my $station = $self->stash('station');
|
|
|
|
my $status = get_departures($station);
|
|
|
|
if ( $status->{errstr} ) {
|
|
$self->render( 'landingpage', error => $status->{errstr} );
|
|
}
|
|
else {
|
|
# You can't check into a train which terminates here
|
|
my @results = grep { $_->departure } @{ $status->{results} };
|
|
|
|
@results = map { $_->[0] }
|
|
sort { $b->[1] <=> $a->[1] }
|
|
map { [ $_, $_->departure->epoch // $_->sched_departure->epoch ] }
|
|
@results;
|
|
|
|
$self->render(
|
|
'departures',
|
|
ds100 => $status->{station_ds100},
|
|
results => \@results,
|
|
station => $status->{station_name}
|
|
);
|
|
}
|
|
};
|
|
|
|
app->defaults( layout => 'default' );
|
|
|
|
app->config(
|
|
hypnotoad => {
|
|
accepts => 10,
|
|
listen => [ $ENV{DBFAKEDISPLAY_LISTEN} // 'http://*:8092' ],
|
|
pid_file => '/tmp/db-fakedisplay.pid',
|
|
workers => $ENV{DBFAKEDISPLAY_WORKERS} // 2,
|
|
},
|
|
);
|
|
|
|
app->start;
|