#!/bin/bash
#
# Play Admin Script
# This script is to be used to handle operations with our Play
# servers. This script is able to start, stop, and report on the
# status of our servers
#

play_home="/home/play"
app_id="my-play-app"
app_port="9000"
out_file="${play_home}/logs/${app_id}/${app_id}.out"

do_start () {
    local app_path="${play_home}/webapps/${app_id}"
    local config_file="${play_home}/etc/application.conf"
    local logger_file="${play_home}/etc/logger.xml"
    local path="${play_home}/lib/play/*:${app_path}/current/*"
    local opts="-Dapp.id=${app_id} -Dhttp.port=${app_port} -Xms128m -Xmx512m -server -XX:MaxPermSize=128m -Dconfig.file=${config_file} -Dlogger.file=${logger_file}"

    local exit_code=10
    while [ $exit_code -eq 10 ]; do
        "${JAVA_HOME}/bin/java" ${opts} -cp "${path}" play.core.server.NettyServer "${app_path}"
        exit_code=$?
    done
}

do_stop () {
    pkill -f "app.id=${app_id}"
    exit $?
}

do_status () {
    pkill -0 -f "app.id=${app_id}" > /dev/null 2>&1 && echo "Process is running" && exit 0
    echo "Process is not running" && exit 0
}

### main ###

if [ "$(whoami)" != "play" ]; then
   echo "This script must be run as ubuntu user" 1>&2
   exit 1
fi

if [ "${JAVA_HOME}" == "" ]; then
    echo "JAVA_HOME Not set. Install the JRE and set the JAVA_HOME in your initialization file"
    exit 1
fi

if [ ! -d "${JAVA_HOME}" ] ; then
    echo "Java ${JAVA_HOME} Directory doesn't exist."
    exit 1
else
    if [ ! -x "${JAVA_HOME}/bin/java" ] ; then
        echo "Java binary error: not found or not executable"
        exit 1
    fi
fi

case ${1} in
    start)
        do_start
    ;;

    stop)
        do_stop
    ;;

    status)
        do_status
    ;;

    nohup)
        nohup $0 $1 start > "${out_file}" 2>&1 &
    ;;

    *)
        echo "Usage: $0 start|nohup|stop|status"
        exit 1
    ;;
esac

exit 0