#!/bin/bash
#
# Startup script for Wowza Media Server
#
# chkconfig: - 80 20
# description: Wowza Media Server is a media server
#
#### BEGIN INIT INFO
# Provides:          WowzaMediaServer
# Required-Start:    $syslog $time $local_fs $remote_fs
# Required-Stop:     $syslog $time $local_fs $remote_fs
# Default-Start:     3 4 5
# Default-Stop:      S 0 1 2 6
# Short-Description: Wowza Media Server 2 Init Script
# Description:       Wowza Media Server 2 Init Script
### END INIT INFO

WMCOMMAND=${1}

FUNCTIONS_EXIST=false
if [ -f /etc/rc.d/init.d/functions ] ; then
     . /etc/rc.d/init.d/functions
     FUNCTIONS_EXIST=true
fi
if [ -f /etc/init.d/functions ] ; then
     . /etc/init.d/functions
     FUNCTIONS_EXIST=true
fi

if ! $FUNCTIONS_EXIST ; then
failure() {
  return 0
}
success() {
  return 0
}
fi

# define vars
RETVAL=0
WMSBASE_NAME=WowzaMediaServer
#WMSCONFIG_SCRIPT="/etc/WowzaMediaServer/$WMSBASE_NAME.conf"
WMSCONFIG_SCRIPT="/usr/local/WowzaMediaServer/bin/setenv.sh"
WMSLICENSE_FILE="/usr/local/WowzaMediaServer/conf/Server.license"
AMAZONEC2_INSTALL_SCRIPT="/usr/local/WowzaMediaServer/bin/AmazonEC2Install.sh"
WMSDAEMON_CMD=/usr/bin/WowzaMediaServerd
WMSPID_FILE="/var/run/$WMSBASE_NAME.pid"
WMSLOCK_FILE="/var/run/$WMSBASE_NAME"
SHUTDOWN_WAIT=20

[ -r "$WMSCONFIG_SCRIPT" ] && . "$WMSCONFIG_SCRIPT"

if ! test -f "${WMSLICENSE_FILE}" ; then
        echo ""
        echo "ERROR: Missing license file: (${WMSLICENSE_FILE})"
        echo "You must first run Wowza Media Server 2 in "
        echo "standalone mode to enter serial number. Execute the "
        echo "following commands to run in standalone mode:"
        echo ""
        echo "cd /usr/local/WowzaMediaServer"
        echo "./startup.sh"
        echo ""
        exit 0
fi

testjava=`which ${_EXECJAVA} 2>/dev/null`
if ! test -f "$testjava" ; then
	echo ""
	echo "ERROR: The Java command (${_EXECJAVA}) could not be found."
	echo "Search path: $PATH"
	echo "In most cases this problem can be fixed by adding a symbolic "
	echo "link to the Java command in the /usr/bin directory. "
	echo "To do this first execute the command \"which java\" to identify "
	echo "the full path to the Java executable. Next, create a symbolic "
	echo "link to this file with the command"
	echo "\"ln -sf [path-to-java] /usr/bin/java\" where [path-to-java] is "
	echo "the path returned by the \"which\" command."
	echo ""
	exit 0
fi

#
start() {

if [ -f $WMSPID_FILE ]; then
	read kpid < $WMSPID_FILE
	kill -9 $kpid
	echo $"$WMSBASE_NAME is already running ($kpid): stopping"
	rm -f $WMSPID_FILE
fi

echo -n $"$WMSBASE_NAME: starting"
#$AMAZONEC2_INSTALL_SCRIPT
$WMSDAEMON_CMD $WMSCONFIG_SCRIPT $WMSPID_FILE start >/dev/null 2>&1 &
success "$WMSBASE_NAME startup"
echo
touch $WMSLOCK_FILE

return 0
}

stop() {

if [ -f $WMSPID_FILE ]; then

	echo -n $"$WMSBASE_NAME: stopping"
	read kpid < $WMSPID_FILE


	$WMSDAEMON_CMD $WMSCONFIG_SCRIPT $WMSPID_FILE stop >/dev/null 2>&1 &

	let kwait=$SHUTDOWN_WAIT
	count=0;
	until [ `ps -p $kpid | grep -c $kpid` = '0' ] || [ $count -gt $kwait ]
	do
		echo -n -e "\nwaiting for processes to exit";
		sleep 1
		let count=$count+1;
	done

	if [ $count -gt $kwait ]; then
		echo -n -e "\nkilling processes which didn't stop after $SHUTDOWN_WAIT seconds"
		kill -9 $kpid
	fi

	rm -f $WMSPID_FILE
	success "$WMSBASE_NAME shutdown"
else
	echo -n $"$WMSBASE_NAME: not running"
fi
echo
rm -f $WMSLOCK_FILE
return 0
}

localstatus() {
if [ -f $WMSLOCK_FILE ]; then
	echo "$WMSBASE_NAME started"
else
	echo "$WMSBASE_NAME stopped"
fi
RETVAL=0
}

# See how we were called.
case "$WMCOMMAND" in
start)
start
;;
stop)
stop
;;
status)
localstatus
;;
restart)
stop
start
;;
*)
echo $"Usage: $WMSBASE_NAME {start|stop|restart|status}"
exit 1
esac

exit $RETVAL