#!/bin/bash

function cmd_install_packages {
	<$1 xargs apt -y install
}

function cmd_uninstall_packages {
	<$1 xargs apt -y remove
	apt -y autoremove
}

function check_package_list {
	if [ ! -f "$1" ]; then
		echo "Package file '$1' doesn't exist."
		exit 2
	fi
}

function install_package_list {
	local list_file="packages.$1.list"

	check_package_list $list_file

	echo "Installing packages from '$list_file'"

	cmd_install_packages $list_file
}

function uninstall_package_list {
	local list_file="packages.$1.list"

	check_package_list $list_file

	echo "Uninstalling packages from '$list_file'"

	cmd_uninstall_packages $list_file
}

function uninstall_packages_unwanted {
	uninstall_package_list 'unwanted'
}

function install_packages_base {
	install_package_list 'base'
}

function generate_ssh_key {
	sudo -u $SUDO_USER sh -c '< /dev/zero ssh-keygen -q -N ""'
}

uninstall_packages_unwanted
install_packages_base

generate_ssh_key