package DBInfoscreen::Controller::Wagenreihung; # Copyright (C) 2011-2020 Daniel Friesel # # SPDX-License-Identifier: BSD-2-Clause use Mojo::Base 'Mojolicious::Controller'; use Mojo::JSON qw(decode_json encode_json); use Mojo::Util qw(b64_encode b64_decode); use utf8; use Travel::Status::DE::DBWagenreihung; use Travel::Status::DE::DBWagenreihung::Wagon; sub zugbildung_db { my ($self) = @_; my $train_no = $self->param('train'); my $details = $self->app->train_details_db->{$train_no}; if ( not $details ) { $self->render( 'not_found', message => "Keine Daten zu Zug ${train_no} bekannt" ); return; } my @wagons; for my $wagon ( @{ $details->{wagons} } ) { my $wagon_type = $wagon->{type}; my $wagon_number = $wagon->{number}; my %wagon = ( fahrzeugnummer => "", fahrzeugtyp => $wagon_type, kategorie => $wagon_type =~ m{^[0-9.]+$} ? 'LOK' : '', train_no => $train_no, wagenordnungsnummer => $wagon_number, positionamhalt => { startprozent => 0, endeprozent => 0, startmeter => 0, endemeter => 0, } ); my $wagon = Travel::Status::DE::DBWagenreihung::Wagon->new(%wagon); if ( $details->{type} ) { $wagon->set_traintype( $details->{type} ); } push( @wagons, $wagon ); } my $pos = 0; for my $wagon (@wagons) { $wagon->{position}{start_percent} = $pos; $wagon->{position}{end_percent} = $pos + 5; $pos += 5; } my $train_type = $details->{rawType}; $train_type =~ s{ - .* }{}x; my $route_start = $details->{route}{start} // $details->{route}{preStart}; my $route_end = $details->{route}{end} // $details->{route}{postEnd}; my $route = "${route_start} → ${route_end}"; $self->render( 'zugbildung_db', wr_error => undef, title => $train_type . ' ' . $train_no, route => $route, zb => $details, train_no => $train_no, wagons => [@wagons], hide_opts => 1, ); } sub wagenreihung { my ($self) = @_; my $train = $self->stash('train'); my $departure = $self->stash('departure'); my $exit_side = $self->param('e'); $self->render_later; $self->wagonorder->get_p( $train, $departure )->then( sub { my ($json) = @_; my $wr; eval { $wr = Travel::Status::DE::DBWagenreihung->new( from_json => $json ); }; if ($@) { $self->render( 'wagenreihung', title => "Zug $train", wr_error => scalar $@, train_no => $train, wr => undef, wref => undef, hide_opts => 1, ); } my $wref = { e => $exit_side ? substr( $exit_side, 0, 1 ) : '', tt => $wr->train_type, tn => $train, s => $wr->station_name, p => $wr->platform }; if ( $wr->has_bad_wagons ) { # create fake positions as the correct ones are not available my $pos = 0; for my $wagon ( $wr->wagons ) { $wagon->{position}{start_percent} = $pos; $wagon->{position}{end_percent} = $pos + 4; $pos += 4; } } elsif ( defined $wr->direction and scalar $wr->wagons > 2 ) { # wagenlexikon images only know one orientation. They assume # that the second class (i.e., the wagon with the lowest # wagon number) is in the leftmost carriage(s). We define the # wagon with the lowest start_percent value to be leftmost # and invert the direction passed on to $wref if it is not # the wagon with the lowest wagon number. # Note that we need to check both the first two and the last two # wagons as the train may consist of several wings. If their # order differs, we do not show a direction, as we do not # handle that case yet. my @wagons = $wr->wagons; # skip first/last wagon as it may be a locomotive my $wna1 = $wagons[1]->number; my $wna2 = $wagons[2]->number; my $wnb1 = $wagons[-3]->number; my $wnb2 = $wagons[-2]->number; my $wpa1 = $wagons[1]{position}{start_percent}; my $wpa2 = $wagons[2]{position}{start_percent}; my $wpb1 = $wagons[-3]{position}{start_percent}; my $wpb2 = $wagons[-2]{position}{start_percent}; if ( $wna1 =~ m{^\d+$} and $wna2 =~ m{^\d+$} and $wnb1 =~ m{^\d+$} and $wnb2 =~ m{^\d+$} ) { # We need to perform normalization in two cases: # * wagon 1 is leftmost and its number is higher than wagon 2 # * wagon 1 is rightmost and its number is lower than wagon 2 # (-> the leftmost wagon has the highest number) # However, if wpa/wna und wpb/wnb do not match, we have a # winged train with different normalization requirements # in its wings. We do not handle that case yet. if ( ( $wna1 <=> $wna2 ) != ( $wnb1 <=> $wnb2 ) ) { # unhandled. Do not set $wref->{d}. } elsif (( $wpa1 < $wpa2 and $wna1 > $wna2 ) or ( $wpa1 > $wpa2 and $wna1 < $wna2 ) ) { # perform normalization $wref->{d} = 100 - $wr->direction; } else { # no normalization required $wref->{d} = $wr->direction; } } } $wref = b64_encode( encode_json($wref) ); $self->render( 'wagenreihung', wr_error => undef, title => join( ' / ', map { $wr->train_type . ' ' . $_ } $wr->train_numbers ), train_no => $train, wr => $wr, wref => $wref, hide_opts => 1, ); } )->catch( sub { my ($err) = @_; $self->render( 'wagenreihung', title => "Zug $train", wr_error => scalar $err, train_no => $train, wr => undef, wref => undef, hide_opts => 1, ); } )->wait; } sub wagen { my ($self) = @_; my $wagon_id = $self->stash('wagon'); my $wagon_no = $self->param('n'); my $section = $self->param('s'); my $wref = $self->param('r'); if ( not $self->app->dbdb_wagon->{$wagon_id} ) { $self->render( 'not_found', message => "Keine Daten zu Wagentyp \"${wagon_id}\" vorhanden", hide_opts => 1 ); return; } eval { $wref = decode_json( b64_decode($wref) ); }; if ($@) { $wref = {}; } $wref->{wn} = $wagon_no; $wref->{ws} = $section; my $wagon_file = "https://lib.finalrewind.org/dbdb/db_wagen/${wagon_id}.png"; my $title = "Wagen $wagon_id"; if ( $wref->{tt} and $wref->{tn} ) { $title = sprintf( '%s %s', $wref->{tt}, $wref->{tn} ); if ($wagon_no) { $title .= " Wagen $wagon_no"; } else { $title .= " Wagen $wagon_id"; } } if ( defined $wref->{d} and $wref->{e} ) { if ( $wref->{d} == 0 and $wref->{e} eq 'l' ) { $wref->{e} = 'd'; } elsif ( $wref->{d} == 0 and $wref->{e} eq 'r' ) { $wref->{e} = 'u'; } elsif ( $wref->{d} == 100 and $wref->{e} eq 'l' ) { $wref->{e} = 'u'; } elsif ( $wref->{d} == 100 and $wref->{e} eq 'r' ) { $wref->{e} = 'd'; } } else { $wref->{e} = ''; } $self->render( 'wagen', title => $title, wagon_file => $wagon_file, wref => $wref, hide_opts => 1, ); } 1;