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package RT::Base;
use Carp;
use Scalar::Util;

use strict;
use vars qw(@EXPORT);

@EXPORT=qw(loc CurrentUser);

=head1 NAME

RT::Base


=head1 SYNOPSIS

=head1 DESCRIPTION

=head1 FUNCTIONS

=cut

# {{{ sub CurrentUser 

=head2 CurrentUser

If called with an argument, sets the current user to that user object.
This will affect ACL decisions, etc.  
Returns the current user

=cut

sub CurrentUser {
    my $self = shift;

    if (@_) {
        $self->{'original_user'} = $self->{'user'};
        $self->{'user'} = shift;
        # We need to weaken the CurrentUser ($self->{'user'}) reference
        # if the object in question is the currentuser object.
        # This avoids memory leaks.
        Scalar::Util::weaken($self->{'user'}) if (ref($self->{'user'}) &&
                                                    $self->{'user'} == $self );
    }

    unless ( ref( $self->{'user'}) ) {
        $RT::Logger->err( "$self was created without a CurrentUser\n" . Carp::cluck() );
        return (0);
    }
    return ( $self->{'user'} );
}

# }}}

sub OriginalUser {
    my $self = shift;

    if (@_) {
        $self->{'original_user'} = shift;
        Scalar::Util::weaken($self->{'original_user'})
            if (ref($self->{'original_user'}) && $self->{'original_user'} == $self );
    }
    return ( $self->{'original_user'} || $self->{'user'} );
}


=head2 loc LOC_STRING

l is a method which takes a loc string
to this object's CurrentUser->LanguageHandle for localization. 

you call it like this:

    $self->loc("I have [quant,_1,concrete mixer].", 6);

In english, this would return:
    I have 6 concrete mixers.


=cut

sub loc {
    my $self = shift;
    if (my $user = $self->OriginalUser) {
        return $user->loc(@_);
    }
    else {
        use Carp;
        Carp::confess("No currentuser");
        return ("Critical error:$self has no CurrentUser", $self);
    }
}

sub loc_fuzzy {
    my $self = shift;
    if (my $user = $self->OriginalUser) {
        return $user->loc_fuzzy(@_);
    }
    else {
        use Carp;
        Carp::confess("No currentuser");
        return ("Critical error:$self has no CurrentUser", $self);
    }
}

eval "require RT::Base_Vendor";
die $@ if ($@ && $@ !~ qr{^Can't locate RT/Base_Vendor.pm});
eval "require RT::Base_Local";
die $@ if ($@ && $@ !~ qr{^Can't locate RT/Base_Local.pm});


1;