#!/usr/bin/perl -w

use strict;
use Modern::Perl '2014';
use experimental 'smartmatch';
use Getopt::Long::Descriptive;
use open IO => ":encoding(utf-8)";
use open ':std';

use File::Slurp qw/read_file/;
use JSON qw/from_json to_json/;
use Data::Dumper;
use Array::Utils qw(:all);

my ($opt, $usage) = describe_options(
	'addrfilter %o <some-arg>',
	[ 'input|i=s',		"Input file", { required => 1  } ],
	[ 'errors|e',		"Only extract addresses with errors" ],
	[ 'postcode|p=s@',	"Extract only postcode" ],
	[ 'csv|c',		"Output as csv" ],
	[],
	[ 'help',		"print usage message and exit", { shortcircuit => 1 } ],
);

print($usage->text), exit if $opt->help;

my $addresses = from_json(read_file($opt->input), { utf8 => 1 });

if (defined($opt->errors)) {
	my @errors=grep { defined($_->{errors}); } @{$addresses->{addresses}};
	$addresses->{addresses}=\@errors;
}

if (defined($opt->postcode)) {
	my @filtered=grep { 
		my @a=( $_->{postcode} // "", $_->{geompostcode} // "");
		scalar intersect(@a, @{$opt->postcode});
	} @{$addresses->{addresses}};
	$addresses->{addresses}=\@filtered;
}

if ($opt->csv) {
	my @head=qw/postcode city suburb street housenumber lat lon id source geompostcode geomcity geomsuburb geomcounty errors/;
	my @a=map { if (defined($_->{errors})) { $_->{errors} = join(";", @{$_->{errors}}); } $_; } @{$addresses->{addresses}};

	print(join(",", map { "\"$_\"" } @head) . "\n");
	foreach my $line ( @a ) {
		my @l=map { $line->{$_} // "" } @head;
		print(join(",", map { "\"$_\"" } @l) . "\n");
	}
} else {
	print JSON->new->encode($addresses)
}