#! /bin/bash

connection_state=$1 

delai_offline="5"
delai_online="6"
echo $connection_state

switchwindowdecorator() {
	status=$1
	if [ $status -eq 0 ]
		then echo '----------- VNC connection detected, killing compiz ------------'		
			#killall compiz			
			metacity --replace&	 
	else echo '----------- VNC connection finished, activating compiz ------------'
		sleep 2		
		#compiz
		#gtk-window-decorator --replace
		compiz&
		##emerald --replace&
	fi
}

while [ '1' -eq '1' ]
do
			if [ $connection_state -eq 0 ]
				then echo '----------- VNC offline listening ------------' 
					if ((netstat -p -n | grep -E "192.168.10.22(%[1-9]*)*:5900.*ESTABLISHED")||(netstat -p | grep -E "78.234.236.166(%[1-9]*)*:5959.*ESTABLISHED"))
						then switchwindowdecorator 0
							 connection_state=1 #on passe en statut "connecté"
							 sleep $delai_offline
					fi
		   elif [ $connection_state -eq 1 ] 
				then echo '----------- VNC online listening ------------'  
					if ((netstat -p -n | grep -E "192.168.10.22(%[1-9]*)*:5900.*ESTABLISHED")||(netstat -p | grep -E "78.234.236.166(%[1-9]*)*:5959.*ESTABLISHED"))
						then sleep $delai_online
					else switchwindowdecorator 1
						connection_state=0 #on passe en statut "déconnecté"
					fi
		   else
				echo 'parametre incorrect '
		fi
done