#!/bin/bash
set -e

NAME=$1
USER=tom
PASS=tom
ROOT_PASS=root

# init
lxc-create $NAME -t download -- --dist debian --release buster --arch amd64
lxc-start $NAME
# TODO maybe just info until ip shows up?
sleep 15

# install basics
lxc-attach $NAME -- apt-get update
lxc-attach $NAME -- apt-get dist-upgrade
lxc-attach $NAME -- apt-get install -y sudo openssh-server x11-xserver-utils apt-utils

# setup users
lxc-attach $NAME -- bash -c 'echo -e "'$ROOT_PASS'\n'$ROOT_PASS'" | passwd'
lxc-attach $NAME -- adduser $USER --gecos "" --disabled-password
lxc-attach $NAME -- bash -c 'echo -e "'$PASS'\n'$PASS'" | passwd $USER'

# setup x11 forwarding
lxc-attach $NAME -- bash -c 'echo "AllowTcpForwarding yes" >> /etc/ssh/sshd_config'
lxc-attach $NAME -- bash -c 'echo "X11UseLocalhost yes" >> /etc/ssh/sshd_config'
lxc-attach $NAME -- bash -c 'echo "PermitRootLogin yes" >> /etc/ssh/sshd_config'
lxc-attach $NAME -- systemctl restart sshd

# setup networking
IP="$(lxc-info $NAME | grep IP | tr -s ' ' | cut -d ' ' -f 2)"
DESIRED_IP="$(grep $NAME configs/hosts | cut -d ' ' -f 1)"

sed "s/ADDRESS/$DESIRED_IP/" configs/interfaces > tmp/interfaces
sshpass -p $ROOT_PASS scp -o "StrictHostKeyChecking=no" tmp/interfaces root@$IP:/etc/network/interfaces
sshpass -p $ROOT_PASS scp -o "StrictHostKeyChecking=no" configs/hosts root@$IP:/etc/hosts
lxc-attach $NAME -- systemctl restart networking

# add ssh key
sshpass -p $ROOT_PASS ssh-copy-id -o "StrictHostKeyChecking=no" root@$DESIRED_IP