#!/bin/ash

if [ ! -e /etc/letsencrypt ]
then
  echo "[!!] Certbot directory is not initialized"
  echo "[!!] Either it's the first run or you forgot to add a volume"

  # check if stdin (fd 0) is assigned to a tty
  [ ! -t 0 ] && echo "Not a TTY! Exiting" && exit 1

  /venv/bin/certbot certonly --nginx
  exit $?
fi

/usr/sbin/nginx -c /etc/nginx/nginx.conf &
ngpid=$!
waitpid=""

ctrlc () {
  kill -QUIT "$ngpid"
  [ -n "$waitpid" ] && kill -INT "$waitpid"
}

trap ctrlc INT
trap ctrlc TERM

while true
do
  /venv/bin/certbot renew --post-hook "kill -HUP $ngpid"
  sleep 12h &
  waitpid=$!
  wait
done