#!/usr/bin/env bash
# Remove a user from the server
# Copyright 2021 Bryan C. Roessler

parent="${BASH_SOURCE[0]}"
parent=${parent%/*}

unset user

[[ -f "$parent"/functions ]] && . "$parent"/functions || exit 1

is_root

if [[ $# -eq 1 ]]; then
    user="$1"
else
    echo "Must provide exactly one argument (username)"
    exit 1
fi

if ! id -u "$user"; then
    echo "User $user does not exist"
    exit 1
fi

! ask_ok "Remove user $user?" && exit $?

killall -u "$user"

if ask_ok "Backup /home/$user?" && [[ -d /home/"$user" ]]; then
    if [[ ! -d /mnt/array/home-retired/"$user" ]]; then 
        btrfs subvolume create /mnt/array/home-retired/"$user"
    fi
    rsync -av /home/"$user"/ /mnt/array/home-retired/"$user"
fi

smbpasswd -x "$user"

sed -i "/$user/d" /etc/subuid
sed -i "/$user/d" /etc/subgid

userdel -fr "$user"

exit $?