#!/bin/bash
# Debian containers only
function create_container {
	echo -n "Enter the path of the container (including container root): "
		read -e CONTAINER_PATH

	echo -n "Enter debian release channel: "
		read CHANNEL

	echo -n "Enter (private) ssh key for git (absolute path): "
		read -e KEY

	echo -n "Start a ssh server? [y/n]: "
		read SSH_SERVER

	if [ "$SSH_SERVER" == "y" ];then
		echo -n "Enter ssh listening port: "
			read PORT
	fi

	echo -n "Add dotfiles? [y/n]: "
		read DOTFILES

	echo "Creating container.."
	debootstrap $CHANNEL $CONTAINER_PATH
	mkdir $CONTAINER_PATH/root/.bin/

	echo "Copying key.."
	mkdir $CONTAINER_PATH/root/.ssh
	cp $KEY $KEY.pub $CONTAINER_PATH/root/.ssh/


	if [ "$SSH_SERVER" == "y" ] ;then
		systemd-nspawn -D $CONTAINER_PATH apt-get -y install ssh
		add_ssh $CONTAINER_PATH $PORT
	elif [ -z "$SSH_SERVER" ] ;then
		echo "Not creating a ssh server"
	fi

	echo "Installing vim & git"
	systemd-nspawn -D $CONTAINER_PATH apt-get -y install vim git

	echo "Starting container first time, enter root pass"
	systemd-nspawn -D $CONTAINER_PATH passwd

	if [ "$DOTFILES" == "y" ] ;then
		dotfiles $CONTAINER_PATH
	fi
}

function add_ssh {
	CONTAINER_PATH=$1
	PORT=$2

	echo "Editing ssh config"
	sed -i 's/^#Port .*/Port '"$PORT"'/' $CONTAINER_PATH/etc/ssh/sshd_config
	sed -i 's/^#PermitRootLogin .*/PermitRootLogin yes/' $CONTAINER_PATH/etc/ssh/sshd_config
	# Restart ssh in order to load changes
	systemd-nspawn -D $CONTAINER_PATH systemctl restart ssh
}

function dotfiles {
	CONTAINER_PATH=$1
	systemd-nspawn -D $1 git clone https://www.github.com/SonnyBA/dotfiles.git $1/root/dotfiles
	systemd-nspawn -D $1 $1/root/dotfiles/initialize_script
}

create_container