#!/bin/sh
APP=argeo

JVM=java

BIN_DIR=`dirname "$0"`
BASE_DIR=$BIN_DIR/..

# Directories and files
CONF_DIR=$BASE_DIR/etc/$APP
CONF_DIRS=$CONF_DIR/conf.d
BASE_CONFIG_INI=$BASE_DIR/share/$APP/config.ini

EXEC_DIR=.
DATA_DIR=$EXEC_DIR/data
CONF_RW=$EXEC_DIR/state
CONFIG_INI=$CONF_RW/config.ini

OSGI_INSTALL_AREA=$BASE_DIR/share/osgi/boot
OSGI_FRAMEWORK=$OSGI_INSTALL_AREA/org.eclipse.osgi.jar

# Overwrite variables
if [ -f $CONF_DIR/settings.sh ];then
	. $CONF_DIR/settings.sh
fi

RETVAL=0

start() {
	mkdir -p $CONF_RW
	mkdir -p $DATA_DIR

    # Merge config files
    printf "## Equinox configuration - Generated by argeo-cms ##\n\n" > $CONFIG_INI
    cat $BASE_CONFIG_INI >> $CONFIG_INI
    printf "\n##\n## $CONF_DIR/$APP.ini\n##\n\n" >> $CONFIG_INI
    cat $CONF_DIR/$APP.ini >> $CONFIG_INI
    for file in `ls -v $CONF_DIRS/*.ini`; do
            printf "\n##\n## $file\n##\n\n" >> $CONFIG_INI
            cat $file >> $CONFIG_INI
    done;

	cd $EXEC_DIR
	$JVM \
		-Dlog4j.configuration="file:$CONF_DIR/log4j.properties" \
		$JAVA_OPTS -jar $OSGI_FRAMEWORK \
		-configuration "$CONF_RW" \
		-data "$DATA_DIR"
}

reload() {
	echo Not yet implemented
}

stop() {
	if [ -f $PID_FILE ];then
		PID=`cat $PID_FILE`
		kill -0 $PID &> /dev/null
		PID_EXISTS=$?
		if [ $PID_EXISTS -ne 0 ]; then
			echo Dead $APP process with pid $PID, removing $PID_FILE
			rm -f $PID_FILE
			RETVAL=1
			return $RETVAL
		fi
	else
		echo $APP is not running
		RETVAL=1
		return $RETVAL
	fi
	
	# notifies application by removing the shutdown file
#	rm -f $SHUTDOWN_FILE
	kill $PID
	
	# wait 10 min for application to shutdown, then kill it
	TIMEOUT=$((10*60))
	BEGIN=$(date +%s)
	while kill -0 $PID &> /dev/null
	do
		sleep 1
		NOW=$(date +%s)
		DURATION=$(($NOW-$BEGIN))
		if [ $DURATION -gt $TIMEOUT ]; then
			kill -9 $PID
			echo Forcibly killed $APP with pid $PID
			RETVAL=1
		fi
	done
	
	# remove pid file
	rm -f $PID_FILE
	return $RETVAL
}

status() {
	if [ -f $PID_FILE ];then
		PID=`cat $PID_FILE`
	else
		echo $APP is not running
		return $RETVAL
	fi
	kill -0 $PID &> /dev/null
	PID_EXISTS=$?
	if [ $PID_EXISTS -eq 0 ]; then
		echo $APP is running with pid $PID ...
	else
		echo No $APP process with pid $PID, removing $PID_FILE
		rm -f $PID_FILE
	fi
	return $RETVAL
}

# main
case "$1" in
  start)
        start
        ;;
  reload)
        reload
        ;;
  stop)
        stop
        ;;
  status)
	status
        ;;
  *)
        start
        ;;
esac