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#!/usr/local/bin/perl
#	Title:	SpaceTrack
#	Author:	T. R. Wyant
#	Date:	07-Mar-2005
#	Remarks:
#		This Perl script is just a really simple encapsulation
#		of the Astro::SpaceTrack shell subroutine. Note that the
#		command line arguments are passed, so you can do things
#		like
#		$ perl SpaceTrack 'set username me password secret'
#		followed by whatever commands you like at the SpaceTrack
#		prompt.


use strict;
use warnings;

our $VERSION = '0.182';

use Astro::SpaceTrack qw{shell};
use Getopt::Long 2.39;

my %opt = (
    filter => 0,
);

my $go = Getopt::Long::Parser->new();

$go->getoptionsfromarray(
    \@ARGV,
    \%opt,
    qw{ filter! identity! }
) or die <<'EOD';

SpaceTrack - Retrieve orbital elements from the Space Track database.

usage: SpaceTrack [option] [command ...]

with the only legal option being
  -filter
    to supress all output to stdout except orbital data.
EOD

my $st = Astro::SpaceTrack->new(
    filter	=> $opt{filter},
    identity	=> $opt{identity},
);

$st->shell (@ARGV);

__END__


=head1 NAME

SpaceTrack - Perl application to fetch satellite orbit data.

=head1 SYNOPSIS

This application provides a command-line interface to the
Astro::SpaceTrack module, based on the Astro::SpaceTrack::shell
subroutine.

This gives you interactive access to all Astro::SpaceTrack methods,
plus pseudo output redirection (with tilde expansion) if you want your
output to go to a file.

Commands can be passed in on the command line. After all command-line
commands have been processed, you get an interactive prompt unless one
of the command-line commands was 'exit'. Beginning with 0.014, commands
can also be piped in, or redirected in from a file.

The one and only option is -filter, which sets the 'filter' attribute
of the C<Astro::SpaceTrack> object. This prevents informational output
(such as the banner and 'OK' messages) to STDOUT. The idea is that
with -filter asserted, you can pipe the output to another program,
and only have orbital elements written to the pipe.

Please see L<Astro::SpaceTrack|Astro::SpaceTrack> for the details.

=head1 ACKNOWLEDGMENTS

The author wishes to thank Dr. T. S. Kelso of
L<https://celestrak.org/> and the staff of L<https://www.space-track.org/>
(whose names are unfortunately unknown to me) for their co-operation,
assistance and encouragement in the development of the Astro::SpaceTrack
module.

=head1 AUTHOR

Thomas R. Wyant, III (F<harryfmudd at comcast dot net>).

=head1 COPYRIGHT AND LICENSE

Copyright (C) 2005-2006, 2010-2026 by Thomas R. Wyant, III
(F<harryfmudd at comcast dot net>).

This program is free software; you can redistribute it and/or modify it
under the same terms as Perl 5.10.0. For more details, see the full text
of the licenses in the files F<LICENSE-Artistic> and F<LICENSE-GPL>.

This program is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.

The data obtained by this script may be subject to the Space
Track user agreement (L<https://www.space-track.org/documentation#/user_agree>).

=cut

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