#!/bin/bash

set -e

REQUIREMENTS=( curl jq podman )
for req in ${REQUIREMENTS[@]}; do
    if ! command -v $req > /dev/null; then
        echo "This script requires $req to run."
        exit 1
    fi
done

# NEXTCLOUD_DIGEST= # NOT USED YET
# MARIADB_DIGEST=   # NOT USED YET
# 
# MYSQL_ROOT_PASSWD=''
# MYSQL_PASSWD='' #Used for Postgres too
#
# POSTGRES_USER=''
# POSTGRES_DB=''
# 
# 
# ADMIN_USER=''
# ADMIN_PASSWD=''
# NEXTCLOUD_DATA_DIR=''
# NEXTCLOUD_DB_DIR=''
# TRUSTED_DOMAINS=''
# 
# CLAMAV_DB_DIR=''
# CLAMAV_CONF_DIR=''

## Place the above configurations in a file called env in the same
## directory as this script
## 
## A template env file is included in the repo
[[ -f ./env ]] && . ./env || exit 1

## Change this to 1 if you haven't enabled previews before
## Or this is a fresh installation
APPEND_PREVIEW_CONFIG=0

## Just in case to avoid file permission errors
#sudo chown "$USER": "$NEXTCLOUD_DB_DIR"

## Remove old log file
if [ "$UID" -ne 0 ]; then
	podman unshare rm -f "$NEXTCLOUD_DATA_DIR"/data/nextcloud.log
else
	rm -f "$NEXTCLOUD_DATA_DIR"/data/nextcloud.log
fi
	 

##
## Create a pod for Nextcloud
##

podman pod create -p 8081:80 --hostname "$NEXTCLOUD_HOSTNAME" --name nextcloud

##
## Mariadb
##
# 
# podman build -f ./mariadb-nextcloud.Containerfile -t localhost/mariadb:latest
# podman create --name nextcloud-db --pod nextcloud \
# 	-e MYSQL_ROOT_PASSWORD="$MYSQL_ROOT_PASSWD" \
# 	-e MYSQL_DATABASE='nextcloud' \
# 	-e MYSQL_USER='nextcloud' \
# 	-e MYSQL_PASSWORD="$MYSQL_PASSWD" \
# 	-v "$NEXTCLOUD_DB_DIR":/var/lib/mysql:Z \
# 	localhost/mariadb:latest

##
## Postgres
##
#
podman create --pod nextcloud --name nextcloud-postgres \
	-e POSTGRES_USER=nextcloud \
	-e POSTGRES_DB=nextcloud \
	-e POSTGRES_PASSWORD="$MYSQL_PASSWD" \
	-v "$NEXTCLOUD_DB_DIR":/var/lib/postgresql/data:Z \
	docker.io/postgres:alpine


##
## Redis
##

podman create --name nextcloud-redis --pod nextcloud docker.io/redis:alpine

##
## ClamAV
##

## No typos in the :z and :Z flags, NC data dir needs the small z
## which means shared with another container

podman create --name nextcloud-clamav --pod nextcloud \
    -v "$CLAMAV_DB_DIR":/var/lib/clamav:Z \
    -v "$CLAMAV_CONF_DIR":/etc/clamav:Z \
    clamav/clamav:latest

## Add the following:
## -v $NEXTCLOUD_DATA_DIR/data:/scandir:z \
## to clamav to use ClamAV's clamd scanning as well
## (not tested)


##
## Nextcloud
##

[ -n "$NEXTCLOUD_HOSTNAME" ] && sed -i "s|^ServerName.*$|ServerName $NEXTCLOUD_HOSTNAME|" apache2.conf
podman build -f ./nextcloud-app.Containerfile -t nextcloud:latest
podman create --name nextcloud-app --pod nextcloud \
  -e POSTGRES_DB='nextcloud' \
  -e POSTGRES_USER='nextcloud' \
  -e POSTGRES_PASSWORD="$MYSQL_PASSWD" \
  -e POSTGRES_HOST='127.0.0.1' \
  -e NEXTCLOUD_ADMIN_USER="$ADMIN_USER" \
  -e NEXTCLOUD_ADMIN_PASSWORD="$ADMIN_PASSWD" \
  -e NEXTCLOUD_TRUSTED_DOMAINS="$TRUSTED_DOMAINS" \
  -e PHP_MEMORY_LIMIT="$NEXTCLOUD_PHP_MEMORY_LIMIT" \
  -e PHP_UPLOAD_LIMIT='10G' \
  -e REDIS_HOST='127.0.0.1' \
  -e REDIS_PORT='6379' \
  -e APACHE_DISABLE_REWRITE_IP=1 \
  -e TRUSTED_PROXIES="$TRUSTED_PROXIES" \
  -v "$NEXTCLOUD_DATA_DIR":/var/www/html:z \
  localhost/nextcloud:latest
  
#  -e MYSQL_DATABASE='nextcloud' \
#  -e MYSQL_USER='nextcloud' \
#  -e MYSQL_PASSWORD="$MYSQL_PASSWD" \
#  -e MYSQL_HOST='127.0.0.1:3306' \

##
## Enable previews
##

if [[ "$APPEND_PREVIEW_CONFIG" -eq 1 ]]; then
  sudo sed -i '/^);$/d' "$NEXTCLOUD_DATA_DIR"/config/config.php; cat previews.conf | sudo tee -a "$NEXTCLOUD_DATA_DIR"/config/config.php > /dev/null
  podman restart nextcloud-app
fi

##
## Generate systemd units
##

if [[ "$1" == "--generate-systemd" ]]; then

	## Added UID check in case using rootful containers (under LXC guest, for example)
	if [ "$UID" -ne 0 ]; then
		[[ ! -d "$HOME"/.config/systemd/user ]] && mkdir -p "$HOME"/.config/systemd/user
		cd "$HOME"/.config/systemd/user
		if [[ "$2" == "--new" ]]; then
			podman generate systemd --new -n -f nextcloud
		else
			podman generate systemd -n -f nextcloud
		fi
		systemctl --user daemon-reload

		systemctl --user enable --now pod-nextcloud
	else
		cd /etc/systemd/system
		if [[ "$2" == "--new" ]]; then
			podman generate systemd --new -n -f nextcloud
		else
			podman generate systemd -n -f nextcloud
		fi
		systemctl daemon-reload

		systemctl enable --now pod-nextcloud
	fi

else
	echo "Not generating systemd units. Use --generate-systemd flag to do so automatically."
	podman pod start nextcloud
fi

echo "Waiting for nextcloud to initialize.."
while [[ "$(curl -s localhost:8081/status.php | jq '.installed')" != "true" ]]; do
				sleep 1
done

## Tag images
VERSION=$(curl -s localhost:8081/status.php | jq -r '.versionstring')
echo "Tagging current image..."
podman tag localhost/nextcloud:latest localhost/nextcloud:"$VERSION"
echo "localhost/nextcloud version $VERSION is up!"
exit 0