%# BEGIN BPS TAGGED BLOCK {{{
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%# REST/1.0/Forms/ticket/comment
%#
<%ARGS>
$id
%changes
</%ARGS> 
<%INIT>
use MIME::Entity;
use LWP::MediaTypes;
use RT::Interface::REST;
use File::Temp qw(tempfile);

$RT::Logger->debug("Got ticket id=$id for comment");
$RT::Logger->debug("Got args @{[keys(%changes)]}.");

my $ticket = new RT::Ticket $session{CurrentUser};
my ($c, $o, $k, $e) = ("", [], {}, 0);

# http://.../REST/1.0/ticket/1/comment
$ticket->Load($id);
if (!$ticket->Id) {
    $e = 1;
    $c = "# Ticket $id does not exist.";
    goto OUTPUT;
}

my $action;
($action = $changes{Action}) =~ s/^(.)(.*)$/\U$1\L$2\E/;
unless ($action =~ /^(?:Comment|Correspond)$/) {
    $e = 1;
    $c = "# Invalid action: `$action'.";
    goto OUTPUT;
}

my $text = $changes{Text};
my @atts = @{ vsplit($changes{Attachment}) };

if (!$changes{Text} && @atts == 0) {
    $e = 1;
    $c = "# Empty comment with no attachments submitted.";
    goto OUTPUT;
}

my $cgi = $m->cgi_object;
my $ent = MIME::Entity->build(Type => "multipart/mixed");
$ent->attach(Data => $changes{Text}) if $changes{Text};

my $i = 1;
foreach my $att (@atts) {
    local $/=undef;
    my $file = $att;
    $file =~ s#^.*[\\/]##;

    my $fh = $cgi->upload("attachment_$i");
    if ($fh) {
        my $buf;
        my ($w, $tmp) = tempfile();
        my $info = $cgi->uploadInfo();

        while (sysread($fh, $buf, 8192)) {
            syswrite($w, $buf);
        }

        $ent->attach(
            Path => $tmp,
            Type => $info->{'Content-Type'} || guess_media_type($tmp),
            Filename => $file,
            Disposition => "attachment"
        );
    }
    else {
        $e = 1;
        $c = "# No attachment for $att.";
        goto OUTPUT;
    }

    $i++;
}

unless ($ticket->CurrentUserHasRight('ModifyTicket') ||
        ($action eq "Comment" &&
         $ticket->CurrentUserHasRight("CommentOnTicket")) ||
        ($action eq "Correspond" &&
         $ticket->CurrentUserHasRight("ReplyToTicket")))
{
    $e = 1;
    $c = "# You are not allowed to $action on ticket $id.";
    goto OUTPUT;
}

my $cc = join ", ", @{ vsplit($changes{Cc}) };
my $bcc = join ", ", @{ vsplit($changes{Bcc}) };
my ($n, $s) = $ticket->$action(MIMEObj => $ent,
                               CcMessageTo => $cc,
                               BccMessageTo => $bcc,
                               TimeTaken => $changes{TimeWorked} || 0);
$c = "# ".$s;
if ($changes{Status}) {
   my  ($status_n, $status_s) = $ticket->SetStatus($changes{'Status'} );   
  $c .= "\n# ".$status_s;
}

OUTPUT:
return [ $c, $o, $k, $e ];
</%INIT>