#!/usr/pkg/bin/perl
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use 5.10.1;
use strict;
use warnings;

use lib "/var/rt5/lib";
use lib "/usr/pkg/share/rt5/lib";

use RT::Interface::CLI qw(Init);
Init();

use RT::CachedGroupMembers;
my $cgms = RT::CachedGroupMembers->new( RT->SystemUser );
$cgms->Limit(
    FIELD => 'id',
    OPERATOR => '!=',
    VALUE => 'main.Via',
    QUOTEVALUE => 0,
    ENTRYAGGREGATOR => 'AND',
);
$cgms->FindAllRows;

my $alias = $cgms->Join(
    TYPE   => 'LEFT',
    FIELD1 => 'Via',
    TABLE2 => 'CachedGroupMembers',
    FIELD2 => 'id',
);
$cgms->Limit(
    ALIAS => $alias,
    FIELD => 'MemberId',
    OPERATOR => '=',
    VALUE => $alias .'.GroupId',
    QUOTEVALUE => 0,
    ENTRYAGGREGATOR => 'AND',
);
$cgms->Limit(
    ALIAS => $alias,
    FIELD => 'id',
    OPERATOR => '=',
    VALUE => $alias .'.Via',
    QUOTEVALUE => 0,
    ENTRYAGGREGATOR => 'AND',
);

my $cgms2 = RT::CachedGroupMembers->new( RT->SystemUser );
$cgms2->Limit( FIELD => 'ImmediateParentId', VALUE => 'main.GroupId', OPERATOR => '!=', QUOTEVALUE => 0 );
my $groups = $cgms2->Join(
    ALIAS1 => 'main',
    FIELD1 => 'GroupId',
    TABLE2 => 'Groups',
    FIELD2 => 'id'
);
$cgms2->Limit(
    ALIAS         => $groups,
    FIELD         => 'Domain',
    VALUE         => 'RT::Ticket-Role',
    CASESENSITIVE => 0,
);

my $total = $cgms->Count + $cgms2->Count;
my $i = 0;

for my $cgms ( $cgms, $cgms2 ) {
    FetchNext( $cgms, 'init' );
    while ( my $rec = FetchNext($cgms) ) {
        $i++;
        printf( "\r%0.2f %%", 100 * $i / $total );
        $RT::Handle->BeginTransaction;
        my ($status) = $rec->Delete;
        unless ($status) {
            $RT::Logger->error( "Couldn't delete CGM #" . $rec->id );
            exit 1;
        }
        $RT::Handle->Commit;
    }
}

use constant PAGE_SIZE => 10000;
sub FetchNext {
    my ($objs, $init) = @_;
    if ( $init ) {
        $objs->RowsPerPage( PAGE_SIZE );
        $objs->FirstPage;
        return;
    }

    my $obj = $objs->Next;
    return $obj if $obj;
    $objs->RedoSearch;
    $objs->FirstPage;
    return $objs->Next;
}

