#!/bin/bash

# source function library
. /etc/gd_gateway/lib/start-stop-functions
. /etc/gd_gateway/lib/init-multi-mode


# Check for missing binaries (stale symlinks should not happen)
# Note: Special treatment of stop for LSB conformance
APP_BIN=/opt/gd_gateway/bin/gd_gateway
test -x $APP_BIN || { echo "$APP_BIN not installed"; 
   if [ "$1" = "stop" ]; then exit 0;
   else exit 5; fi; }

if [ "${MULTI_MODE}" = "YES" -o "${MULTI_MODE}" = "yes" ]; then
   init_multi_mode $1 $2
   exit $?
fi


PIDFILE=/var/run/gd_gateway.pid
DAEMON_ARGS="pidFile=$PIDFILE"
RETVAL=0
# Return values acc. to LSB for all commands but status:
# 0       - success
# 1       - generic or unspecified error
# 2       - invalid or excess argument(s)
# 3       - unimplemented feature (e.g. "reload")
# 4       - user had insufficient privileges
# 5       - program is not installed
# 6       - program is not configured
# 7       - program is not running
# 8--199  - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signaling is not supported) are
# considered a success.

case "$1" in
   start)

      echo -n "Starting gd_gateway: "
      ## create subfolder for lock files, on Debian systems needed
      mkdir -p /var/lock/subsys

      ## Start daemon with startproc(8). If this fails
      ## the return value is set appropriately by startproc.
      daemon --pidfile $PIDFILE $APP_BIN &
      RETVAL=$?
      echo
      ;;
   stop)
      echo -n "Shutting down gd_gateway: "
      ## Stop daemon with killproc(8) and if this fails
      ## killproc sets the return value according to LSB.

      killproc -p $PIDFILE $APP_BIN && rm -f /var/lock/subsys/gd_gateway
      RETVAL=$?
      echo
      ;;
   restart)
      ## Stop the service and regardless of whether it was
      ## running or not, start it again.
      $0 stop
      $0 start
      RETVAL=$?
      ;;
   status)
      echo -n "Checking for service gd_gateway: "
      ## Check status with checkproc(8), if process is running
      ## checkproc will return with exit status 0.

      # Return value is slightly different for the status command:
      # 0 - service up and running
      # 1 - service dead, but /var/run/  pid  file exists
      # 2 - service dead, but /var/lock/ lock file exists
      # 3 - service not running (unused)
      # 4 - service status unknown :-(
      # 5--199 reserved (5--99 LSB, 100--149 distro, 150--199 appl.)

      status -p $PIDFILE $APP_BIN
      RETVAL=$?
      echo
      ;;
   *)
      echo "Usage: $0 {start|stop|status|restart}"
      exit 3
      ;;
   esac
exit $RETVAL