package Pear::LocalLoop::Command::latlong_setup;
use Mojo::Base 'Mojolicious::Command';

use Mojo::Util 'getopt';

use Geo::UK::Postcode::Regex;
use GIS::Distance;

has description => 'Set lat/long data on customers and orgs';

has usage => sub { shift->extract_usage };

sub run {
    my ( $self, @args ) = @_;

    my $customer_rs = $self->app->schema->resultset('Customer');
    my $org_rs      = $self->app->schema->resultset('Organisation');

    for my $result ( $customer_rs->all, $org_rs->all ) {
        $self->_set_lat_long_for_result($result);
    }

    my $transaction_rs = $self->app->schema->resultset('Transaction');

    for my $result ( $transaction_rs->all ) {
        my $distance = $self->_calculate_distance(
            $result->buyer->${ \$result->buyer->type },
            $result->seller->${ \$result->seller->type },
        );
        $result->update( { distance => $distance } ) if defined $distance;
    }
    
    return 1;
}

sub _set_lat_long_for_result {
    my ( $self, $result ) = @_;

    my $parsed_postcode = Geo::UK::Postcode::Regex->parse( $result->postcode );
    my $pc_rs           = $self->app->schema->resultset('GbPostcode');

    if ( $parsed_postcode->{valid} && !$parsed_postcode->{non_geographical} ) {
        my $gb_pc = $pc_rs->find(
            {
                outcode => $parsed_postcode->{outcode},
                incode  => $parsed_postcode->{incode},
            }
        );
        if ($gb_pc) {
            $result->update(
                {
                    latitude  => $gb_pc->latitude,
                    longitude => $gb_pc->longitude,
                }
            );
        }
    }
    
    return 1;
}

sub _calculate_distance {
    my ( $self, $buyer, $seller ) = @_;

    my $gis = GIS::Distance->new();

    my $buyer_lat   = $buyer->latitude;
    my $buyer_long  = $buyer->longitude;
    my $seller_lat  = $seller->latitude;
    my $seller_long = $seller->longitude;

    if (   $buyer_lat
        && $buyer_long
        && $seller_lat
        && $seller_long )
    {
        return $gis->distance(
            $buyer_lat,
            $buyer_long => $seller_lat,
            $seller_long
        )->meters;
    }
    else {
        print STDERR "missing lat-long for: "
          . $buyer->name . " or "
          . $seller->name . "\n";
    }
    return;
}

=head1 SYNOPSIS

  Usage: APPLICATION latlong_setup [OPTIONS]

  Options:

    none for now

=cut

1;