#!/usr/bin/perl

require DebianNet;

$| = 1;

$action = shift;

if ( $action eq 'failed-upgrade' ) {
    exit 1;
}

if ( $action eq 'upgrade'  or $action eq 'deconfigure' ) {
    system("/etc/init.d/qmail stop");
    exit $? if $?;
    DebianNet::disable_service('smtp');
    exit 0;
}

if ( $action eq 'remove' ) {
    # Ask for confirmation if there are still messages in qmail's queue.
    $mesg_inqueue = `find /var/qmail/queue/mess -type f -print | wc -l`;
    $mesg_inqueue =~ s/\s//g;
    $mesg_unprocessed = `find /var/qmail/queue/todo -type f -print | wc -l`;
    $mesg_unprocessed =~ s/\s//g;

    if ( $mesg_inqueue != 0 || $mesg_unprocessed != 0 ) {
	print STDERR <<EOT;
There are still messages in qmail's queue. You probably want to wait until
qmail's queue is empty before removing the qmail package. Otherwise 
the messages currently waiting in the queue will not be delivered or will be 
lost. (\`qmail-qstat' will tell you the number of messages in qmail's queue.)

EOT

        print STDERR 'Do you still want to proceed and remove the qmail package? [y/N] ';
	my $answer = <STDIN>;
	exit 1 unless $answer =~ /^\s*[yY]/;
    }

    # Remove qmail-smtpd from inetd.conf
    DebianNet::remove_service('smtp\s+stream\s+tcp\s+nowait\s+qmaild.*/usr/sbin/qmail-smtpd');
    
    # Stop qmail process.
    system("/etc/init.d/qmail stop");
    exit $? if $?;
}

unlink("/usr/doc/qmail");

exit 0;

__END__;