#!/bin/bash
#
# armaserver: ArmA 2 Linux Dedicated Server Control Script
#  (c) 2010 BIStudio
#  ArmA 2 binary version must be 1.04 or later
#

#=======================================================================
#========               CONFIGURATION PARAMETERS                ========
#======== MUST BE EDITED MANUALLY TO FIT YOUR SYSTEM PARAMETERS ========
#=======================================================================
ARMA_DIR=/home/propslam/arma2
CONFIG=server.cfg
PORT=2302
PIDFILE=${ARMA_DIR}/${PORT}.pid
RUNFILE=${ARMA_DIR}/${PORT}.run
LOGFILE=${ARMA_DIR}/log.${PORT}.txt
SERVER=${ARMA_DIR}/server
OTHERPARAMS="-cpucount=2 -mod=ca"
#=======================================================================
ulimit -c 1000000

case "$1" in


    start)
    if [ -f ${RUNFILE} ]; then
        $0 stop
    fi
    echo "Starting ArmA 2 server..."
    # file to mark we want server running...
    echo "go" >${RUNFILE}
    # launch the background watchdog process to run the server
    nohup </dev/null >/dev/null $0 watchdog &
    ;;

    stop)
    echo "Stopping ArmA 2 server..."
    if [ -f ${RUNFILE} ]; then
    # ask watcher process to exit by deleting its runfile...
        rm -f ${RUNFILE}
    fi
    # and terminate ArmA 2 server process
    if [ -f ${PIDFILE} ]; then
        kill -TERM $(< ${PIDFILE})
        if [ -f ${PIDFILE} ]; then
        rm -f ${PIDFILE}
        fi
    fi
    ;;


    status)
    if [ -f ${RUNFILE} ]; then
        echo "Server should be running..."
    else
        echo "Server should not be running..."
    fi
    if [ -f ${PIDFILE} ]; then
        PID=$(< ${PIDFILE})
        echo "PID file exists (PID=${PID})..."
        if [ -f /proc/${PID}/cmdline ]; then
        echo "Server process seems to be running..."
        fi
    fi
    ;;


    check)
    echo -n "ArmA 2 directory: ${ARMA_DIR} "
    if [ -d ${ARMA_DIR} ]; then
        echo "OK"
    else
        echo "MISSING!"
    fi

    echo -n "Server executable: ${SERVER} "
    if [ -x ${SERVER} ]; then
        echo "OK"
    else
        echo "ERROR!"
    fi

    echo "Port number: ${PORT}"

    echo -n "Config file: ${CONFIG} "
    if [ -f ${CONFIG} ]; then
        echo "OK"
    else
        echo "MISSING!"
    fi

    echo "PID file: ${PIDFILE}"
    echo "RUN file: ${RUNFILE}"

    ;;

    restart)
    $0 stop
    $0 start
        ;;

    watchdog)
    # this is a background watchdog process. Do not start directly
    while [ -f ${RUNFILE} ]; do
    # launch the server...
        cd ${ARMA_DIR}
        echo >>${LOGFILE} "WATCHDOG ($$): [$(date)] Starting server (port ${PORT})..."
        ${SERVER} >>${LOGFILE} 2>&1 -server -config=${CONFIG} -port=${PORT} -pid=${PIDFILE} ${OTHERPARAMS}
        if [ -f ${RUNFILE} ]; then
        echo >>${LOGFILE} "WATCHDOG ($$): [$(date)] Server died, waiting to restart..."
        sleep 5s
        else
        echo >>${LOGFILE} "WATCHDOG ($$): [$(date)] Server shutdown intentional, watchdog terminating"
        fi
    done
    ;;
    *)
    echo "$0 (start|stop|restart|status|check)"
    ;;
esac