#!/bin/sh

INTERFACE=$1
STATUS=$2

# Make sure we're always getting the standard response strings
LANG='C'

CHRONY=$(which chronyc)

chrony_cmd() {
  echo "Chrony going $1."
  exec $CHRONY -a $1
}

nm_connected() {
  [ "$(nmcli -t --fields STATE g)" = 'connected' ]
}

case "$STATUS" in
  up)
    chrony_cmd online
  ;;
  vpn-up)
    chrony_cmd online
  ;;
  down)
    # Check for active interface, take offline if none is active
    nm_connected || chrony_cmd offline
  ;;
  vpn-down)
    # Check for active interface, take offline if none is active
    nm_connected || chrony_cmd offline
  ;;
esac