# Copyright © 2010 Julian Blake Kongslie <jblake@omgwallhack.org>
# Licensed under the BSD 3-clause license.

use strict;
use warnings;

package Piny::Environment;

use MooseX::Singleton;
use MooseX::StrictConstructor;

use Piny::User;

# Attributes

has 'user' =>
  ( is          => 'ro'
  , isa         => 'Piny::User'
  , lazy_build  => 1
  , init_arg    => undef
  );

# Builder methods

sub _build_user {
  my ( $s ) = @_;

  if ( defined $ENV{"SUDO_UID"} ) {
    return Piny::User->new( uid => $ENV{"SUDO_UID"} );
  } elsif ( defined $ENV{"SUDO_USER"} ) {
    return Piny::User->new( name => $ENV{"SUDO_USER"} );
  } elsif ( defined $ENV{"UID"} ) {
    return Piny::User->new( uid => $ENV{"UID"} );
  } elsif ( defined $ENV{"USER"} ) {
    return Piny::User->new( name => $ENV{"USER"} );
  } else {
    return Piny::User->new( uid => $< );
  };
};

# Moose boilerplate

__PACKAGE__->meta->make_immutable( inline_constructor => 0 );

1;