%# REST/1.0/Forms/ticket/history
%#
<%ARGS>
$id
$args => undef
$format => undef
$fields => undef
</%ARGS>
<%perl>
my $ticket = new RT::Ticket $session{CurrentUser};
my ($c, $o, $k, $e) = ("", [], {}, "");

$ticket->Load($id);
unless ($ticket->Id) {
    return [ "# Ticket $id does not exist.", [], {}, 1 ];
}

my $trans = $ticket->Transactions();
my $total = $trans->Count();

chomp $args;
my @arglist = split('/', $args);
my ($type, $tid);

if ($arglist[0] eq 'type') {
    $type = $arglist[1];
} elsif ($arglist[0] eq 'id') {
    $tid = $arglist[1];
} else {
    $type = $args;
}

if ($type) {
    # Create, Set, Status, Correspond, Comment, Give, Steal, Take, Told
    # CustomField, AddLink, DeleteLink, AddWatcher, DelWatcher
    if ($args =~ /^links?$/) {
        $trans->Limit(FIELD => 'Type', OPERATOR => 'LIKE', VALUE => '%Link');
    }
    elsif ($args =~ /^watchers?$/) {
        $trans->Limit(FIELD => 'Type', OPERATOR => 'LIKE', VALUE => '%Watcher');
    }
    else {
        $trans->Limit(FIELD => 'Type', OPERATOR => '=', VALUE => $type);
    }
} elsif ($tid) {
    $trans->Limit(FIELD => 'Id', OPERATOR => '=', VALUE => $tid);
}

if ($tid) {
    my @data;
    my $t = new RT::Transaction $session{CurrentUser};
    $t->Load($tid);

    push @data, [ id    => $t->Id   ];
    push @data, [ EffectiveTicket    => $t->EffectiveTicket   ]
	if (!%$fields || exists $fields->{lc 'EffectiveTicket'});
    push @data, [ Ticket    => $t->Ticket   ]
	if (!%$fields || exists $fields->{lc 'Ticket'});
    push @data, [ TimeTaken    => $t->TimeTaken   ]
	if (!%$fields || exists $fields->{lc 'TimeTaken'});
    push @data, [ Type    => $t->Type   ]
	if (!%$fields || exists $fields->{lc 'Type'});
    push @data, [ Field    => $t->Field   ]
	if (!%$fields || exists $fields->{lc 'Field'});
    push @data, [ OldValue    => $t->OldValue   ]
	if (!%$fields || exists $fields->{lc 'OldValue'});
    push @data, [ NewValue    => $t->NewValue   ]
	if (!%$fields || exists $fields->{lc 'NewValue'});
    push @data, [ Data    => $t->Data   ]
	if (!%$fields || exists $fields->{lc 'Data'});
    push @data, [ Description    => $t->Description   ]
	if (!%$fields || exists $fields->{lc 'Description'});
    push @data, [ Content    => $t->Content   ]
	if (!%$fields || exists $fields->{lc 'Content'});


    if (!%$fields || exists $fields->{lc 'Content'}) {    
	my $creator = new RT::User $session{CurrentUser};
	$creator->Load($t->Creator);
	push @data, [ Creator    => $creator->Name   ];
    }
    push @data, [ Created    => $t->Created   ]
	if (!%$fields || exists $fields->{lc 'Created'});

    if (!%$fields || exists $fields->{lc 'Attachments'}) {
	my $attachlist;
	my $attachments = $t->Attachments;
	while (my $a = $attachments->Next) {
	    my $size = length($a->Content);
	    if ($size > 1024) { $size  = int($size/102.4)/10 . "k" }
	    else              { $size .= "b" }
	    $attachlist .= "\n" . $a->Id.": ".($a->Filename || "untitled")." (".$size.")";
	}
	
	push @data, [Attachments => $attachlist];
    }

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

} else {
    my (@data, $tids);
    $format ||= "s";
    $format = "l" if (%$fields);

    while (my $t = $trans->Next) {
	my $tid = $t->Id;

	if ($format eq "l") {
	    $tids .= "," if $tids;
	    $tids .= $tid;
	} else {
	    push @$o, $tid;
	    $k->{$tid} = $t->Description;
	}
    }

    if ($format eq "l") {
	my @tid;
	push @tid, "ticket/$id/history/id/$tids";
	my $fieldstring;
	foreach my $key (keys %$fields) {
	    $fieldstring .= "," if $fieldstring;
	    $fieldstring .= $key;
	}
	my ($content, $forms);

	$m->subexec("$RT::WebPath/REST/1.0/show", 
		    id => \@tid, 
		    format => $format,
                    fields => $fieldstring);
	return [ $c, $o, $k, $e ];
    }
}

if (!$c) {
    my $sub = $trans->Count();
    $c = "# $sub/$total ($args/total)";
}

return [ $c, $o, $k, $e ];

</%perl>