#!/bin/sh -e
########################################
#### THIS IS A DEBIAN INIT.D SCRIPT ####
########################################

### BEGIN INIT INFO
# Provides:          kallithea
# Required-Start:    $all
# Required-Stop:     $all
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts instance of kallithea
# Description:       starts instance of kallithea using start-stop-daemon
### END INIT INFO

APP_NAME="kallithea"
APP_HOMEDIR="opt"
APP_PATH="/$APP_HOMEDIR/$APP_NAME"

CONF_NAME="production.ini"

PID_PATH="$APP_PATH/$APP_NAME.pid"
LOG_PATH="$APP_PATH/$APP_NAME.log"

PYTHON_PATH="/$APP_HOMEDIR/$APP_NAME-venv"

RUN_AS="root"

DAEMON="$PYTHON_PATH/bin/gearbox"

DAEMON_OPTS="serve --daemon \
 --user=$RUN_AS \
 --group=$RUN_AS \
 --pid-file=$PID_PATH \
 --log-file=$LOG_PATH -c $APP_PATH/$CONF_NAME"


start() {
  echo "Starting $APP_NAME"
  start-stop-daemon -d $APP_PATH \
      --start --quiet \
      --pidfile $PID_PATH \
      --user $RUN_AS \
      --exec $DAEMON -- $DAEMON_OPTS
}

stop() {
  echo "Stopping $APP_NAME"
  start-stop-daemon -d $APP_PATH \
      --stop --quiet \
      --pidfile $PID_PATH || echo "$APP_NAME - Not running!"

  if [ -f $PID_PATH ]; then
    rm $PID_PATH
  fi
}

status() {
  echo -n "Checking status of $APP_NAME ... "
  pid=`cat $PID_PATH`
  status=`ps ax | grep $pid | grep -ve grep`
  if [ "$?" -eq 0 ]; then
    echo "running"
  else
    echo "NOT running"
  fi
}

case "$1" in
  status)
   status
    ;;
  start)
    start
    ;;
  stop)
    stop
    ;;
  restart)
    echo "Restarting $APP_NAME"
    ### stop ###
    stop
    wait
    ### start ###
    start
    ;;
  *)
    echo "Usage: $0 {start|stop|restart}"
    exit 1
esac