#!/bin/bash

# System startup script for App
#
# Author: Patrick Grimard <pgrimard@gmail.com>
# Thu Oct 20 07:44:00 CEST 2017

### BEGIN INIT INFO
# Provides:          app-name
# Required-Start:    $syslog $remote_fs $network
# Required-Stop:     $syslog $remote_fs $network
# Default-Start:     3 5
# Default-Stop:      0 1 2 6
# Short-Description: App
# Description:       App
### END INIT INFO

USER=appuser
NAME=app-name
JAR_NAME=app.jar
PATH_TO_JAR=/srv/spring/$JAR_NAME
OPTS="--server.port=3000"
PIDFILE=/var/run/$JAR_NAME.pid
LOG_DIR=/var/log/spring/$NAME

. /etc/rc.status

start_service() {
    mkdir -p $LOG_DIR
    chown -R $USER:$USER $LOG_DIR
    su $USER -c "nohup /usr/java/jdk1.8.0_11/bin/java -jar $PATH_TO_JAR $OPTS >> $LOG_DIR/stdout.log 2> $LOG_DIR/stderr.log & echo \$!" > $PIDFILE
    rc_status -v
}

case $1 in
    start)
        if [ -f $PIDFILE ]; then
            PID=$(cat $PIDFILE)
            ps -p $PID > /dev/null 2>&1
            if [ $? -eq 0 ]; then
                printf "%s\n" "Service already running"
                ps -p $PID
                exit 1
            else
                start_service
            fi
        else
            start_service
        fi
    ;;
    stop)
        if [ -f $PIDFILE ]; then
            PID=$(cat $PIDFILE)
            kill $PID
            rm $PIDFILE
            rc_status -v
        fi
    ;;
esac
exit 0