#!/bin/sh
mkdir -p /var/run/nfp
PIDFILE=/var/run/nfp/nfp_pecan.pid
tmp_pidfile=$(tempfile -s .nfp_pecan.init)

clean()
{
    rm -f $tmp_pidfile
}
trap clean EXIT

start_nfp_pecan () {
        start-stop-daemon --quiet --start -m --pidfile $PIDFILE --background \
        --chdir /usr/local/lib/python2.7/dist-packages/gbpservice/nfp/pecan/api \
        --exec /usr/local/bin/pecan  configurator_decider config.py -- --mode  advanced || return 1
        return 0
}

stop_nfp_pecan () {
    if [ ! -f $PIDFILE ] ; then
        # This is a success according to LSB
        return 0
    fi

    ret=0
    for pid in $(cat $PIDFILE); do
        echo $pid > $tmp_pidfile
        start-stop-daemon --quiet --stop --signal KILL --pidfile $PIDFILE || ret=$?
    done

    [ $ret -eq 0 ] && rm -f $PIDFILE

    return $ret
}

nfp_pecan_status()
{
    if [ ! -f $PIDFILE ] ; then
        # program not running
        return 2
    fi

    for pid in $(cat $PIDFILE) ; do
        if  ps --no-headers p "$pid" | grep pecan > /dev/null ; then
            return 0
        fi
    done

    #bogus pidfile
    return 1
}


case "$1" in
start)
    start_nfp_pecan
    ret=$?
    case "$ret" in
    0)
        echo "Started nfp-pecan"
        ;;
    1)
        echo "NOT started nfp-pecan"
        ;;
    esac
    exit $ret
    ;;
stop)
   stop_nfp_pecan
   ret=$?
   case "$ret" in
   0)
        echo "Stopped nfp_pecan"
        ;;
   1)
        echo "Didn't stop nfp_pecan"
        ;;
    esac
    exit $ret
    ;;
restart)
    echo "Restarting nfp-pecan"
    stop_nfp_pecan
    start_nfp_pecan
    ret=$?
    case "$ret" in
    0)
    echo "Restarted nfp-pecan"
    ;;
    1)
    echo "Failed to restart"
    ;;
    esac
    exit $ret
    ;;
status)
    nfp_pecan_status
    ret=$?
    case "$ret" in
    0)
       echo "nfp-pecan is running."
       ;;
    1)
       echo "bogus $PIDFILE exists"
       ;;
    2)
        echo "nfp-pecan NOT running."
        ;;
    esac
    exit $ret
    ;;
*)
    echo "Usage: /etc/init.d/nfp-pecan {start|stop|restart|status}"
    exit 2
    ;;
esac