#!/usr/bin/perl -w

#----------------------------------------------------------------------
# copyright (C) 2010 Firewall Services 
# Daniel Berteaud <daniel@firewall-services.com>
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#               
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#               
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
#----------------------------------------------------------------------

use strict;
use esmith::templates;
use esmith::ConfigDB;


my $event = $ARGV [0];
my $vpn = $ARGV [1];

die "missing vpn name"  unless defined $vpn;

if ($event eq "bootstrap-console" || $event eq "post-upgrade"  || $event eq "post-upgrade" ) {
    warn "Error: should not try to run this script while running this event. Exiting";
    exit 0;
}

if (system("systemctl is-active --quiet sme-server.target") != 0) {
    warn "Error: sme-server.target has not been reached. Exiting.";
    exit 0;
}


my $db = esmith::ConfigDB->open_ro("openvpn-s2s");

my $conf = $db->get($vpn) or die "unknown site to site vpn";

my $key = $conf->key;
my $status = $conf->prop('status') || 'disabled';
if ($status eq 'enabled'){
  processTemplate(
        {   
            TEMPLATE_PATH => "/etc/openvpn/s2s/openvpn-s2s.conf",
            MORE_DATA => {DB_KEY=>$key},
            OUTPUT_FILENAME => "/etc/openvpn/s2s/$key.conf",
        });
  my $instance = "openvpn-s2s\@$key.service";
  if ( $status  eq "disabled" ) {
    print "Status is disabled for $instance, disabling unit";
    system("/usr/bin/systemctl", "disable", "--now","--quiet", $instance);
  }
  if (system("systemctl is-enabled --quiet $instance") != 0) {
    print "Instance $instance is not enabled. Enabling and starting now...\n";
    system("systemctl enable --now $instance");
  } else {
    print "Service $instance already exists and is enabled, restarting.\n";
    system("/usr/bin/systemctl", "restart","--quiet",  $instance);
  }


}
