#!/usr/bin/perl -w

use strict;

use Geo::Walkabout::Line;
use Geo::Walkabout::Chain;
use Geo::TigerLine::Record::2;
use Carp;

sub callback {
    my($rt2, $num) = @_;

    # Print every 100 records
    unless( $num % 100 ) { 
        local $| = 1;
        printf "%6d records entered\r", $num;
    }


    my $line = Geo::Walkabout::Line->retrieve($rt2->tlid) || 
      do { carp("Can't find line ". $rt2->tlid);  return; };

    my @points = ();
    for my $num (1..10) {
        my $lat_meth = "lat$num";
        my $long_meth = "long$num";

        my $lat  = $rt2->$lat_meth();
        my $long = $rt2->$long_meth();

        # Rest of the fields are empty.
        last if is_null($lat, $long);

        push @points, [$lat, $long];
    }

    $line->chain->append_shape(@points);

    $line->commit;
}

sub is_null {
    my($lat, $long) = @_;

    my $null = 1;
    foreach my $coord ($lat, $long) {
        $null = 0 unless $coord =~ /^\+0+$/;
    }

    return $null;
}
        
Geo::TigerLine::Record::2->parse_file(*STDIN, \&callback);
Geo::Walkabout::Line->db_Main->commit;