#!/usr/bin/env sh

to_backup() {
	# NOOP
}

to_master() {
	# NOOP
}

if [ ! -f "$1" ]; then
	echo "Config file does not exist"
	exit 1
fi

source "$1"
if [ "$?" -gt "0" ]; then
	echo "loading config file caused an error"
	exit 1
fi

old_state=""
while true; do
  state="$(ifconfig | awk '/carp/ { print $2 }')"
  if [ "$old_state" = "${state}" ]; then
    sleep 10
    continue
  fi
  if [ "$state" = "BACKUP" ]; then
    logger "going into backup mode"
		to_backup
  elif [ "$state" = "MASTER" ]; then
    logger "going into master mode"
		to_master
  else
    logger "unknown state '${state}'!"
  fi
  old_state="$state"
  sleep 10
done