#!/usr/bin/perl -wT
#
# ==========================================================================
#
# Zone Minder Package Control Script, $Date$, $Revision$
# Copyright (C) 2003  Philip Coombes
#
# 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.
#
# ==========================================================================
#
# This script is used to start and stop the ZoneMinder package primarily to
# allow command line control for automatic restart on reboot (see zm script)
#
use strict;

# ==========================================================================
#
# These are the elements you need to edit to suit your installation
#
# ==========================================================================
use constant ZM_DB_SERVER => "<from zmconfig>";
use constant ZM_DB_NAME => "<from zmconfig>";
use constant ZM_DB_USERA => "<from zmconfig>";
use constant ZM_DB_PASSA => "<from zmconfig>";
use constant ZM_PATH_LOGS => "<from zmconfig>";
use constant ZM_OPT_FAST_DELETE => "<from zmconfig>";
use constant ZM_OPT_X10 => "<from zmconfig>";

use constant LOG_FILE => ZM_PATH_LOGS.'/zmpkg.log';
use constant COMMAND_PATH => '@prefix@/bin/';
use constant WEB_USER => '@WEB_USER@/';
use constant VERBOSE => 0; # Whether to output more verbose debug

# ==========================================================================
#
# Don't change anything below here
#
# ==========================================================================
use DBI;

# Detaint our environment
$ENV{PATH}  = '/bin:/usr/bin';
$ENV{SHELL} = '/bin/sh' if exists $ENV{SHELL};
delete @ENV{qw(IFS CDPATH ENV BASH_ENV)};

my $command = $ARGV[0];

if ( !$command || $command !~ /^(?:start|stop|restart)$/ )
{
	print( "Usage: zmpkg.pl <start|stop|restart>\n" );
	exit( -1 );
}

my $log_file = LOG_FILE;
open( LOG, ">>$log_file" ) or die( "Can't open log file: $!" );
open( STDOUT, ">&LOG" ) || die( "Can't dup stdout: $!" );
select( STDOUT ); $| = 1;
open( STDERR, ">&LOG" ) || die( "Can't dup stderr: $!" );
select( STDERR ); $| = 1;
select( LOG ); $| = 1;

if ( $command =~ /^(?:stop|restart)$/ )
{
	execute( COMMAND_PATH."/zmdc.pl shutdown" );
}

if ( $command =~ /^(?:start|restart)$/ )
{
	execute( COMMAND_PATH."/zmfix" );

	my $dbh = DBI->connect( "DBI:mysql:database=".ZM_DB_NAME.";host=".ZM_DB_SERVER, ZM_DB_USERA, ZM_DB_PASSA );

	my $sql = "select * from Monitors";
	my $sth = $dbh->prepare_cached( $sql ) or die( "Can't prepare '$sql': ".$dbh->errstr() );
	my $res = $sth->execute() or die( "Can't execute: ".$sth->errstr() );
	while( my $monitor = $sth->fetchrow_hashref() )
	{
		if ( $monitor->{Function} ne 'None' )
		{
			execute( COMMAND_PATH."/zmdc.pl start zmc -d $monitor->{Device}" );
			if ( $monitor->{Function} ne 'Passive' )
			{
				execute( COMMAND_PATH."/zmdc.pl start zma -m $monitor->{Id}" );
			}
		}
		execute( COMMAND_PATH."/zmdc.pl start zmfilter.pl -m $monitor->{Id} -e -1" );
	}
	$sth->finish();

	if ( ZM_OPT_FAST_DELETE )
	{
		execute( COMMAND_PATH."/zmdc.pl start zmaudit.pl -d 900 -y" );
	}
	if ( ZM_OPT_X10 )
	{
		execute( COMMAND_PATH."/zmdc.pl start zmx10.pl -c start" );
	}
	execute( COMMAND_PATH."/zmdc.pl start zmwatch.pl" );
}

if ( $command eq "status" )
{
	print( execute( COMMAND_PATH."/zmdc.pl check" ) );
}

sub execute
{
	my $command = shift;
	my $su_command = "su @WEB_USER@ --shell=/bin/sh --command='$command'";
	print( "Executing: $su_command\n" );
	return( qx( $su_command ) );
}