#! /usr/bin/env bash

# check root
[ ! $UID -eq 0 ] && echo "PLEASE RUN AS ROOT." && exit 1

mkdir -p /ramdisk/sys
mkdir -p /ramdisk/tmp
mkdir -p /ramdisk/persist

ln -sf "$(pwd)"/bin/ramdisk.sh /usr/sbin/
ln -sf "$(pwd)"/bin/mkvm.sh /usr/sbin/
ln -sf "$(pwd)"/bin/editvm.sh /usr/sbin/
ln -sf "$(pwd)"/bin/gitlab-runner.sh /usr/sbin/
ln -sf "$(pwd)"/bin/gitlab-runner-helper.sh /usr/sbin/

ln -sf "$(pwd)"/ramdisk.service /etc/systemd/system/
systemctl daemon-reload

ln -sf "$(pwd)"/templates/archlinux.template /var/lib/lxc/
ln -sf "$(pwd)"/templates/bullseye.template /var/lib/lxc/
ln -sf "$(pwd)"/templates/gitlab-runner.template /var/lib/lxc/

setup_debian() {
	apt install lxc debootstrap
	if [ ! -d /ramdisk/persist/bullseye ]; then
		mkdir /ramdisk/persist/bullseye
		debootstrap bullseye /ramdisk/persist/bullseye http://deb.debian.org/debian
	fi
}

setup_arch() {
	pacman -S lxc arch-install-scripts
	if [ ! -d /ramdisk/persist/archlinux ]; then
		mkdir /ramdisk/persist/archlinux
		pacstrap /ramdisk/persist/archlinux base vim htop tmux
	fi
}

if grep 'NAME="Debian GNU/Linux"' /etc/os-release; then
	setup_debian
elif grep 'NAME="Arch Linux"' /etc/os-release; then
	setup_arch
fi

systemctl enable --now ramdisk