#!/bin/sh

name="wg-test"
version="1.0"
help_message=$(/usr/bin/cat <<-EOF
	Check if Wireguard connection is on and working
	Usage: wg-test
	Options:
	 -h, --help     print this message and exit
	 -v, --version  print version number and exit
EOF
)

. /usr/local/lib/myminiparse.sh

printf_stderr() {
  (>&2 /usr/bin/printf "%s\n" "$1")
}

if [ $(wg-status | wc -l) -le 1 ]; then
  printf_stderr "${name}: Wireguard is not running"
  exit 1
fi

# NOTE: assume that Wireguard configurations use 10.0.0.0/24, just like pretty
# much all upstream documentation

if ! pingable 10.0.0.1; then
  printf_stderr "Wireguard server is not reachable; try checking..."
  printf_stderr " - if the server is running"
  printf_stderr " - if the server can ping peers"
  printf_stderr " - if the server firewall is blocking connections"
  exit 1
fi
exit 0