#!/bin/bash
set -e

[[ -z $1 ]] && echo country_code? && exit 1
country_code=$1

[[ ! -x `which systemctl` ]]   && echo error: systemctl executable not found && exit 1

export DEBIAN_FRONTEND=noninteractive
export SYSTEMD_COLORS=0
export SYSTEMD_URLIFY=0
export LANG=en_US.UTF-8
export LANGUAGE=en_US:en
export LC_ALL=en_US.UTF-8

# strangely enough, pgrep finds systemd-time but not systemd-timesyncd
echo -n "is some ntpd running? "
tmp=`pgrep -a ntpd | head -1; pgrep -a systemd-time | head -1; pgrep -a chronyd | head -1` || true
if [[ -n $tmp ]]; then
        echo $tmp
else
        echo no
fi

echo -n checking for openntpd ...
if dpkg -s openntpd >/dev/null 2>&1; then
	echo already there
else
	echo missing

	# disable legacy ntp no matter what
	systemctl stop ntp >/dev/null 2>&1 || true
	systemctl disable ntp >/dev/null 2>&1 || true

	echo -n update package cache \(/var/tmp/debian-time.log\) ...
	apt-get -q -y update > /var/tmp/debian-time.log 2>&1 && echo done || echo FAIL
	echo '' >> /var/tmp/debian-time.log

	echo -n purge legacy ntp tools \(/var/tmp/debian-time.log\) ...
	apt-get -q -y purge ntp ntpdate ntpsec ntpsec-ntpdate ntpsec-ntpdig python3-ntp \
		>> /var/tmp/debian-time.log 2>&1 && echo done || echo FAIL
	echo '' >> /var/tmp/debian-time.log

	echo -n install openntpd \(/var/tmp/debian-time.log\) ...
	apt-get -q -y install openntpd >> /var/tmp/debian-time.log 2>&1 && echo done || echo FAIL
	echo '' >> /var/tmp/debian-time.log

	mv -f /etc/openntpd/ntpd.conf /etc/openntpd/ntpd.conf.dist
	grep -vE '^#|^$' /etc/openntpd/ntpd.conf.dist > /etc/openntpd/ntpd.conf.clean
	grep -vE '^#|^$' /etc/openntpd/ntpd.conf.dist > /etc/openntpd/ntpd.conf

	changed=1
fi

(( changed == 1 )) && echo changed - all done && exit 0

echo all done - nothing changed