use strict;
use warnings;

use Test::More tests => 5;    # last test to print
use Dist::Zilla::Plugin::AutoVersion::Relative;
use Dist::Zilla;
use Dist::Zilla::Tester;

my $config = <<'EOF';
name = Test-DZPAvR
copyright_holder = Kent Fredric
main_module = t/fake/dist.pm
abstract = A Fake Dist
license = Perl_5

[GatherDir]
EOF

use Dist::Zilla::Plugin::GatherDir;

my $dz = Dist::Zilla::Tester->from_config( { dist_root => 't/fake/', }, { add_files => { 'source/dist.ini' => $config } } );

my $plug = Dist::Zilla::Plugin::AutoVersion::Relative->new(
  zilla       => $dz,
  plugin_name => 'AutoVersion::Relative',
);

like $plug->provide_version, qr/^1.01\d{6}$/, "Defaults";

$plug = Dist::Zilla::Plugin::AutoVersion::Relative->new(
  zilla       => $dz,
  plugin_name => 'AutoVersion::Relative',
  major       => 0,
);

like $plug->provide_version, qr/^0.01\d{6}$/, "Major V";

$plug = Dist::Zilla::Plugin::AutoVersion::Relative->new(
  zilla       => $dz,
  plugin_name => 'AutoVersion::Relative',
  major       => 0,
  minor       => 0,
);

like $plug->provide_version, qr/^0.00\d{6}$/, "Minor V";

use DateTime;

$plug = Dist::Zilla::Plugin::AutoVersion::Relative->new(
  zilla       => $dz,
  plugin_name => 'AutoVersion::Relative',
  major       => 0,
  minor       => 0,
  year        => DateTime->now->year,
);

$plug->provide_version =~ m/^0.00(\d{4})/;
my $y = $1;
if ( $y <= 12 * 31 ) {
  ok( 1, "Recent " );
}
else {
  ok( 0, "Recent" );
  diag( 'Version: ' . $plug->provide_version );
  diag( 'Days Passed: ' . $y );
  diag( 'Expected: <= ' . ( 12 * 31 ) );
}

{

  # calculation of variables sent to Text::Template.

  # fake the current time, so this test is consistent
  # this time corresponds to 2012-03-01 00:00:00 UTC, which using the
  # "all months have 31 days" rule would give days=31+31+1 - 5 = 58,
  # but the actual days since the milestone is 31+29+1 - 5 = 56.
  my $now = DateTime->from_epoch( epoch => 1330560000 );

  my $plug = Dist::Zilla::Plugin::AutoVersion::Relative->new(
    zilla         => $dz,
    plugin_name   => 'AutoVersion::Relative',
    format        => '{{ sprintf("%03u", days) }}',
    year          => 2012,
    month         => 01,
    day           => 05,
    _current_time => $now,
  );

  is( $plug->provide_version, '056', 'day of year is calculated correctly' );

  # TODO: test other variables, using other $dt and milestone inputs.
}