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    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

=head1 AUTHOR

Brennen Bearnes <code@p1k3.com>

=cut

use 5.10.0;

use strict;
use warnings;
use utf8;
use open qw(:std :utf8);

use Getopt::Long qw(GetOptionsFromArray);
use Pod::Usage;
use App::WRT;
use Carp;
use Term::ReadLine;
use Data::Dumper;

$Carp::Verbose = 1;

if (not caller()) {
  main(@ARGV);
  exit(0);
}

sub main {
  my (@local_argv) = @_;

  # Handle options, including help generated from the POD above.  See:
  # - http://perldoc.perl.org/Getopt/Long.html#User-defined-subroutines-to-handle-options
  # - https://metacpan.org/pod/Pod::Usage
  # - http://michael.thegrebs.com/2014/06/08/Pod-Usage/
  my $config_file = 'wrt.json';
  GetOptionsFromArray(
    \@local_argv,
    'config=s'    => \$config_file,
    help          => sub { pod2usage(0) },
  ) or pod2usage(2);

  my $term = Term::ReadLine->new('wrt repl');
  my $OUT = $term->OUT || \*STDOUT;

  print $OUT "loading configuration from $config_file\n";

  my $w = App::WRT::new_from_file($config_file);

  print $OUT $w->{entry_dir} . ":\n";
  print $OUT "\t" . scalar($w->{entries}->all()) . " items\n";
  print $OUT "\t" . scalar($w->{entries}->all_renderable())
             . " renderable entries\n\n";
  print $OUT "Available:\n\t\$w\n";
  print $OUT "\t\$w->{entries}\n";
  print $OUT "\tDumper(\$foo)\n";
  print $OUT "\n";

  my $prompt = "wrt :: $w->{title_prefix} :: ";

  while ( defined ($_ = $term->readline($prompt)) ) {
    my $result = eval($_);
    carp $@ if $@;
    print $OUT $result, "\n" unless $@;
    $term->addhistory($_) if /\S/;
    $prompt = "wrt :: $w->{title_prefix} :: ";
  }
}

1;