#!/bin/bash
#
# dplus startup script - Written by Brian Roode, NJ6N - nj6n@soara.org
#
# 2008-03-28 | nj6n   | Created based on version 1 dstar init script
# 2008-03-30 | nj6n   | Add update files capability
# 2008-04-07 | nj6n   | Pointed to the new G2 Dsync Page 1.0d
# 2008-04-08 | nj6n   | Add update from nj6n.com web site for G2 
#                       user / gateway data 1.0e
# 2008-04-09 | nj6n   | Check return code of CURL upon update... (1.0f)
# 2008-04-15 | nj6n   | Run watch_dplus if it's available. (1.0g)
# 2008-04-28 | nj6n   | Display version number on status request (1.0h)
# 2008-07-10 | nj6n   | Removed V1 gateway/user data retrieval and
#                       redundant logging. (2.0)
# 2008-07-29 | nj6n   | call "success" function upon success...
# 2012-01-07 | nj6n   | added "update" to check for new version (calls updater script) (2.1)
#
# 
VERSION=2.1
#
# dplus D-STAR utility startup script
#
# Description: starts, stops, restarts dplus daemon
#
# chkconfig: 345 74 26
# description: Manages AA4RC's dplus application 
#

if [ $UID != 0 ]; then
	echo
	     echo "ERROR:  This script must be run as the root user!"
	     echo "        Please use 'su' or log in as root and try again."
	     echo
	     exit 1
 fi
# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
[ -r /etc/sysconfig/network ] && . /etc/sysconfig/network

TOOLS="/dstar/tools"
DPLUS=$TOOLS/dplus
STARTUP_MESSAGE="/dstar/dv/system-ready.dv"
DSTARGW=/opt/products/dstar/dstar_gw
DSIPSVD=$DSTARGW/dsipsvd/dsipsvd.conf
DSGWD=$DSTARGW/dsgwd/dsgwd.conf
LOG=/var/log/dplus.log
#
export LD_LIBRARY_PATH=/opt/products/dstar/pgsql/lib
#
DPLUS_VER=`$DPLUS -v 2>/dev/null`

# Check that networking is up.
[ "${NETWORKING}" = "no" ] && exit 1

#
# Make sure the dstar gateway configuration files exist
#
if [ ! -r $DSIPSVD ]; then
    echo "$DSIPSVD doesn't exist!"
    failure
    echo
    exit
fi

if [ ! -r $DSGWD ]; then
    echo "$DSGWD doesn't exist!"
    failure
    echo
    exit
fi
#
# Read gateway call and DNS path from config file.
#
GW_CALL=`egrep -e '^ZR_CALLSIGN' $DSIPSVD | sed -e 's/ //g' | awk -F"=" '{print $2}' |sed -e 's/\r//'`

#
# Display version
# 

version() {
	   echo "$VERSION"
	   exit
}

start() {

# Start daemons.

#
# start dplus, if it exists, otherwise complain, then quit.
#
    if [ ! -x $DPLUS ]; then
	echo -n "$DPLUS: not installed!"
	failure
	echo
	exit
    fi

    if [ -n "`/sbin/pidof $DPLUS`" ]; then
	echo -n "$DPLUS: already running!"
	failure
	echo
	exit
    else
	echo -n "Starting $DPLUS "
	/usr/bin/nohup $DPLUS -c $GW_CALL > $LOG 2>&1 &
	sleep 2
	if [ -n "`/sbin/pidof dplus`" ]; then
	    success
	    /bin/echo
	    if [ -f $STARTUP_MESSAGE ]; then
		for module in {a,b,c}
		  do
		  cp $STARTUP_MESSAGE /dstar/tmp/play-$module.dvtool
		  sleep 2
		done
	    fi
	else 
	    failure
	    echo
	    return 1
	fi
    fi
}

stop() {
    
# Stop dplus

    echo -n "Stopping: dplus "
    PID1=`/sbin/pidof dplus`
    RETVAL=$?
    if [ $RETVAL -ne 0 ]; then
	echo -e "\n\tERROR:  $DPLUS is NOT running!"
    else
	/bin/kill $PID1
	success
	/bin/echo
    fi
}

restart() {

    stop
    sleep 2
    start
}	

update () {
    /dstar/tools/dplus-check.sh 2>/dev/null
    exit
}

status() {

    PID=`/sbin/pidof dplus`
    RETVAL=$?
    if [ $RETVAL -ne 0 ]; then
	echo "dplus is NOT running!"
    else 
	echo "dplus is running, PID = $PID, version = $DPLUS_VER"
    fi
}
	
# See how we were called.
case "$1" in
    start)
	start
	;;
    stop)
	stop
	;;
    restart)
	restart
	;;
    version)
	version
	;;
    update)
	update
	;;
    status)
	status
	;;
    *)
	echo -e $"\nUsage: \n\t$0 {option}"
	echo -e "\n\tOptions:\n"
	echo -e "\trestart       - restarts dplus"
	echo -e "\tstart         - starts dplus"
	echo -e "\tstatus        - display status"
	echo -e "\tstop          - stops dplus"
	echo -e "\tversion       - display script version and exit"
	echo -e "\n"
	exit 1
esac

exit $RETVAL