package DBInfoscreen::Helper::Wagonorder; # Copyright (C) 2011-2020 Birte Kristina Friesel # # SPDX-License-Identifier: AGPL-3.0-or-later use strict; use warnings; use 5.020; use Mojo::Promise; sub new { my ( $class, %opt ) = @_; my $version = $opt{version}; $opt{header} = { 'User-Agent' => "dbf/${version} on $opt{root_url} +https://finalrewind.org/projects/db-fakedisplay" }; return bless( \%opt, $class ); } sub get_p { my ( $self, %opt ) = @_; my %param; if ( $opt{param} ) { %param = %{ $opt{param} }; delete $param{e}; } else { my $datetime = $opt{datetime}->clone->set_time_zone('UTC'); %param = ( administrationId => 80, category => $opt{train_type}, date => $datetime->strftime('%Y-%m-%d'), evaNumber => $opt{eva}, number => $opt{train_number}, time => $datetime->rfc3339 =~ s{(?=Z)}{.000}r ); } my $url = sprintf( '%s?%s', 'https://www.bahn.de/web/api/reisebegleitung/wagenreihung/vehicle-sequence', join( '&', map { $_ . '=' . $param{$_} } keys %param ) ); my $cache = $self->{realtime_cache}; my $promise = Mojo::Promise->new; if ( my $content = $cache->thaw($url) ) { $self->{log}->debug("wagonorder->get_p($url): cached"); if ( $content->{error} ) { return $promise->reject($content); } return $promise->resolve( $content, \%param ); } $self->{user_agent}->request_timeout(10)->get_p( $url => $self->{header} ) ->then( sub { my ($tx) = @_; if ( my $err = $tx->error ) { my $json = { error => { id => $err->{code}, msg => $err->{message} } }; $self->{log}->debug( "wagonorder->get_p($url): HTTP $err->{code} $err->{message}" ); $cache->freeze( $url, $json ); $promise->reject($json); return; } $self->{log}->debug("wagonorder->get_p($url): OK"); my $json = $tx->res->json; $cache->freeze( $url, $json ); $promise->resolve( $json, \%param ); return; } )->catch( sub { my ($err) = @_; $self->{log}->warn("wagonorder->get_p($url): $err"); $promise->reject("GET $url: $err"); return; } )->wait; return $promise; } sub get_stationinfo_p { my ( $self, $eva ) = @_; my $url = "https://lib.finalrewind.org/dbdb/s/${eva}.json"; my $cache = $self->{main_cache}; my $promise = Mojo::Promise->new; if ( my $content = $cache->thaw($url) ) { return $promise->resolve($content); } $self->{user_agent}->request_timeout(5)->get_p( $url => $self->{header} ) ->then( sub { my ($tx) = @_; if ( my $err = $tx->error ) { $cache->freeze( $url, {} ); $promise->reject("HTTP $err->{code} $err->{message}"); return; } my $json = $tx->result->json; $cache->freeze( $url, $json ); $promise->resolve($json); return; } )->catch( sub { my ($err) = @_; $cache->freeze( $url, {} ); $promise->reject($err); return; } )->wait; return $promise; } 1;