#!/bin/bash
#
# sailing	Starts sailing services
#
# chkconfig: 2345 95 10
# description: Sailing contains all sailing services

# Source function library.
. /etc/init.d/functions

RETVAL=0

JAVA_START_INSTANCES="server"
GIT_REPOSITORY=/home/sailing/code

start_tmux() {
	su - sailing -c "/home/sailing/bin/tmuxConsole.sh unattended"
	success
}

start_servers() {
	launch_httpd=false
        VARS=`/opt/amazon/bin/ec2-metadata -d | sed "s/user-data\: //g" | grep -v "^not available$"`
        for var in $VARS; do
                echo "$var" | grep -q "^SERVER_NAME="
		if [ "$?" != "0" ]; then
			eval "export $var"
		fi
                echo "$var" | grep -q "^SERVER_PORT="
		if [ "$?" != "0" ]; then
			eval "export $var"
		fi
                echo "$var" | grep -q "^EVENT_ID="
		if [ "$?" != "0" ]; then
			eval "export $var"
		fi
                echo "$var" | grep -iq "^REPLICATE_ON_START=True"
		if [ "$?" != "0" ]; then
			launch_httpd=true
		fi
        done
	if [ "$launch_httpd" = "true" ]; then
		launch_httpd $SERVER_NAME $SERVER_PORT $EVENT_ID
	fi

	for conf in $JAVA_START_INSTANCES; do
		echo "Checking for amazon update..."
		su - sailing -c "cd /home/sailing/servers/$conf && $GIT_REPOSITORY/java/target/refreshInstance.sh auto-install" 2>/var/log/sailing.err >/var/log/sailing.out
		echo "Starting Java server $conf"
		su - sailing -c "cd /home/sailing/servers/$conf && ./start" 2>/var/log/sailing.err >/var/log/sailing.out
		RETVAL=$?
		[ $RETVAL -eq 0 ] && success || failure
	done
}

stop_servers() {
	for conf in $JAVA_START_INSTANCES; do
		echo "Stopping Java server $conf"
		su - sailing -c "cd /home/sailing/servers/$conf && ./stop"
		RETVAL=$?
		[ $RETVAL -eq 0 ] && success || failure
	done
}

# launch_httpd(server_name, port, event_id)
launch_httpd() {
	echo "launch_httpd($1, $2, $2)"
	if [ -x /etc/init.d/httpd ]; then
		server_name="`echo $1 | tr [A-Z] [a-z]`"
		port="$2"
		event_id="$3"
		echo "Use Event $server_name.sapsailing.com \"$event_id\" 127.0.0.1 $port" >>/etc/httpd/conf.d/001-events.conf
		echo "Launching httpd to map ${server_name}.sapsailing.com to event with ID $event_id with server running on local port $port..."
		service httpd start
	else
		echo Can't launch httpd; start script doesn't seem to be installed at /etc/init.d/httpd
	fi
}

# See how we were called.
case "$1" in
  start)
	start_servers
        ;;
  stop)
	stop_servers
	;;
  status)
	status java
	RETVAL=$?
	;;
  *)
        echo $"Usage: $0 {start|status|stop}"
        RETVAL=3
esac

exit $RETVAL