#!/usr/bin/env perl

use strict;
use warnings;
use 5.010;

use File::Slurp qw(read_file write_file);
use JSON;
use XML::LibXML;

my $json_str = read_file('stations.json');
my $stations = JSON->new->utf8->decode($json_str);
@{$stations} = sort { $a->{name} cmp $b->{name} } @{$stations};

my $xml_str = read_file('stations.xml');
my $tree    = XML::LibXML->load_xml( string => $xml_str );

for my $station ( $tree->findnodes('//station') ) {
	my $name  = $station->getAttribute('name');
	my $eva   = $station->getAttribute('eva');
	my $ds100 = $station->getAttribute('ds100');

	my $found = 0;

	for my $j_station ( @{$stations} ) {
		my $j_name  = $j_station->{name};
		my $j_ds100 = $j_station->{ds100};
		my $j_eva   = $j_station->{eva};

		if ( $name eq $j_name or $eva == $j_eva ) {
			$found = 1;
		}

		if ( $j_ds100 eq $ds100 and $j_name ne $name ) {
			printf( "%8s has been renamed: %30s -> %30s\n",
				$ds100, $j_name, $name );
			last;
		}
		elsif ( $j_eva == $eva and $j_name ne $name ) {
			printf( "%d mismatch: (%s -> %s), (%s -> %s)\n",
				$eva, $j_name, $name, $j_ds100, $ds100 );
			last;
		}
		elsif ( $j_name eq $name and $j_ds100 ne $ds100 ) {
			printf( "%30s has been recoded: %8s -> %8s\n",
				$name, $j_ds100, $ds100 );
			last;
		}
		elsif ( $j_name eq $name and $j_eva != $eva ) {
			printf( "%30s has been recoded: %d -> %d\n", $name, $j_eva, $eva );
			last;
		}
	}

	if (    not $found
		and not( $ds100 =~ m{ ^ [OPXZ] }x or $name =~ m{ ^ Bahnhof, }x ) )
	{
		#say "missing $eva  $ds100  \"$name\"";
	}
}

my $json_out = JSON->new->utf8->canonical->pretty->encode($stations);
write_file( 'stations.json', $json_out );