#!/bin/bash
#########################################################
#                                                       #
#              MMDVMHost Service Handler                #
#                                                       #
# Written for Pi-Star (http://www.mw0mwz.co.uk/pi-star) #
#               By Andy Taylor (MW0MWZ)                 #
#                                                       #
#                     Version 1.1                       #
#                                                       #
#########################################################

# Service Config
DAEMON=MMDVMHost
DAEMON_PATH=/usr/local/bin/
CONFIG=/etc/mmdvmhost
DAEMON_OPTS=$CONFIG
PGREP=/usr/bin/pgrep
KILL=/bin/kill
SLEEP=/bin/sleep
USER=mmdvm
GROUP=mmdvm
LOGDIR=/var/log/pi-star

# Pre-flight checks...
test -x ${DAEMON_PATH}${DAEMON} || exit 1
test -r $CONFIG || exit 1

# Verify the logging directory exists, if not create it and setup the ownership / permissions
if [ ! -d $LOGDIR ]; then
        mkdir -p $LOGDIR
        chown root:$GROUP $LOGDIR
        chmod 775 $LOGDIR
fi

case "$1" in
        start)
                if [ `${PGREP} ${DAEMON}` ]; then
                        echo -e "$DAEMON is already running as PID "`$PGREP $DAEMON`
                        exit 1;
                else
                        runuser -l $USER -c "${DAEMON_PATH}${DAEMON} ${DAEMON_OPTS}"
                        echo -e "$DAEMON started as PID "`$PGREP $DAEMON`
                        exit 0;
                fi
                ;;
        stop)
                if [ `${PGREP} ${DAEMON}` ]; then
                        echo -e "Killing $DAEMON PID "`$PGREP $DAEMON`
                        $KILL `${PGREP} ${DAEMON}`
                        exit 0;
                else
                        echo -e "$DAEMON is not running"
                        exit 1;
                fi
                ;;

        restart)
                if [ `$PGREP $DAEMON` ]; then
                        echo -e "Killing $DAEMON PID "`$PGREP $DAEMON`
                        $KILL `${PGREP} ${DAEMON}`
                        $SLEEP 3
                        runuser -l $USER -c "${DAEMON_PATH}${DAEMON} ${DAEMON_OPTS}"
                        echo -e "$DAEMON re-started as PID "`${PGREP} ${DAEMON}`
                        exit 0;
                else
                        echo -e "$DAEMON is not running"
                        ${DAEMON_PATH}${DAEMON} ${DAEMON_OPTS}
                        echo -e "$DAEMON started as PID "`${PGREP} ${DAEMON}`
                        exit 0;
                fi
                ;;

        status)
                if [ `${PGREP} ${DAEMON}` ]; then
                        echo -e "$DAEMON is running as PID "`${PGREP} ${DAEMON}`
                else
                        echo -e "$DAEMON is not running"
                fi
                ;;

        *)
                echo $"Usage: $0 {start|stop|restart|status}"
                exit 1
esac