# Module of TWiki Enterprise Collaboration Platform, http://TWiki.org/
#
# Copyright (C) 2005-2018 Peter Thoeny, peter[at]thoeny.org
# and TWiki Contributors. All Rights Reserved. TWiki Contributors
# are listed in the AUTHORS file in the root of this distribution.
# NOTE: Please extend that file, not this notice.
#
# Additional copyrights apply to some or all of the code in this
# file as follows:
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version. For
# more details read LICENSE in the root of this distribution.
#
# 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.
#
# As per the GPL, removal of this notice is prohibited.
#
# Author: Crawford Currie http://c-dot.co.uk

=begin twiki

---+ package TWiki::If::OP_ingroup

=cut

package TWiki::If::OP_ingroup;
use base 'TWiki::Query::BinaryOP';

use strict;

sub new {
    my $class = shift;
    return $class->SUPER::new(
        name => 'ingroup',
        prec => 600,
        casematters => 1);
}

sub evaluate {
    my $this = shift;
    my $node = shift;
    my $a = $node->{params}->[0]; # user cUID/ loginname / WikiName / WebDotWikiName :( (string)
    my $b = $node->{params}->[1]; # group name (string
    my %domain = @_;
    my $session = $domain{tom}->session;
    throw Error::Simple('No context in which to evaluate "'.
                          $a->stringify().'"') unless $session;
    my $user =  $session->{users}->getCanonicalUserID($a->evaluate(@_));
    return 0 unless $user;
    my $group =  $b->_evaluate(@_);
    return 0 unless $group;
    return 1 if( $session->{users}->isInGroup($user, $group) );
    return 0;
}

1;