#!/bin/bash

ADDITIONAL_KOPANO_PACKAGES=${ADDITIONAL_KOPANO_PACKAGES:-""}
AUTOCONFIGURE=${AUTOCONFIGURE:-true} # when set to false will disable all automatic configuration actions

# define default value for serverhostname and serverport if not passed into container
KCCONF_SERVERHOSTNAME=${KCCONF_SERVERHOSTNAME:-127.0.0.1}
KCCONF_SERVERPORT=${KCCONF_SERVERPORT:-236}

set -eu # unset variables are errors & non-zero return values exit the whole script
[ "$DEBUG" ] && set -x

if [ "${AUTOCONFIGURE}" == true ]; then
	# Hint: this is not compatible with a read-only container.
	# The general recommendation is to already build a container that has all required packages installed.
	ADDITIONAL_KOPANO_PACKAGES=$(echo "$ADDITIONAL_KOPANO_PACKAGES" | tr -d '"')
	if [ -n "$(mkdir -p "/var/lib/apt/lists/" 2&> /dev/null)" ]; then
		[ -n "${ADDITIONAL_KOPANO_PACKAGES// }" ] && apt update
		[ -n "${ADDITIONAL_KOPANO_PACKAGES// }" ] && for installpkg in $ADDITIONAL_KOPANO_PACKAGES; do
			# shellcheck disable=SC2016 disable=SC2086
			if [ "$(dpkg-query -W -f='${Status}' $installpkg 2>/dev/null | grep -c 'ok installed')" -eq 0 ]; then
				apt --assume-yes --no-upgrade install "$installpkg"
			fi
		done
	else
		echo "Notice: Container is run read-only, skipping package installation."
		echo "If you want to have additional packages installed in the container either:"
		echo "- build your own image with the packages already included"
		echo "- switch the container to 'read_only: false'"
	fi

	echo "Ensure directories"
	mkdir -p /run/sessions

	CONFIG_PHP=/tmp/config.php
	# copy latest config template. This should be the mount point for preexisting config files.
	cp /usr/share/kdav/config.php.dist $CONFIG_PHP

	if [ "$KCCONF_SERVERHOSTNAME" == "127.0.0.1" ]; then
		echo "kDAV is using the default: connection"
	else
		echo "kDAV is using an ip connection"
		sed -e "s#define([\"']MAPI_SERVER[\"'],\s*[\"']default:[\"'])#define('MAPI_SERVER', 'https://${KCCONF_SERVERHOSTNAME}:${KCCONF_SERVERPORT}/kopano')#" \
			-i $CONFIG_PHP
	fi

	# change root uri to /kdav
	sed -e "s#define('DAV_ROOT_URI', '/');#define('DAV_ROOT_URI', '/kdav/');#" -i $CONFIG_PHP

	echo "Ensure config ownership"
	chown -R www-data:www-data /run/sessions

	# services need to be aware of the machine-id
	#dockerize \
	#	-wait file:///etc/machine-id \
	#	-wait file:///var/lib/dbus/machine-id
fi

touch /var/log/kdav/kdav.log
chown www-data:www-data /var/log/kdav/kdav.log
tail --pid=$$ -F --lines=0 -q /var/log/kdav/kdav.log &

echo "Starting Apache"
rm -f /run/apache2/apache2.pid
set +u
# shellcheck disable=SC1091
source /etc/apache2/envvars
# cleaning up env variables
unset "${!KCCONF_@}"
exec /usr/sbin/apache2 -DFOREGROUND