%# BEGIN BPS TAGGED BLOCK {{{
%#
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%#
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%#                                          <sales@bestpractical.com>
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%#
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%# END BPS TAGGED BLOCK }}}
%# REST/1.0/Forms/group/customfields
%#
<%ARGS>
$id
$format => 's'
$changes => {}
</%ARGS>
<%perl>
my @comments;
my ($c, $o, $k, $e) = ("", [], {}, 0);
my $group = RT::Group->new($session{CurrentUser});

$group->Load($id);
if (!$group->Id) {
    return [ "# Group $id does not exist.", [], {}, 1 ];
}

if (%$changes) {
    $e = 1;
    $c = "Cannot modify Group CF definitions via REST";
    goto DONE;
}

my @data;

push @data, [ id => "group/" . $group->Id ];
my $gcfs = $group->CustomFields;
while ( my $gcf = $gcfs->Next() ) {
    if ( $format eq "l" ) {
        my $cfadmin
            = ( $gcf->SingleValue ? 'SingleValue' : 'MultiValue' )
            . $gcf->Type
            . ( $gcf->Pattern ? ( ' ' . $gcf->FriendlyPattern ) : '' );

        push @data,
            [ $gcf->Name . ' (' . $gcf->Description . ')' => $cfadmin ];
    } else {
        push @data, [ $gcf->Name => "" ];
    }
}

my %k = map {@$_} @data;
$o = [ map { $_->[0] } @data ];
$k = \%k;

DONE:
$c ||= join("\n", @comments) if @comments;
return [ $c, $o, $k, $e ];
</%perl>