#!/bin/sh

# curl -s https://ldot.de -o dotfiles.sh
# cat dotfiles.sh
# sh dotfiles.sh

echo $*
set -e

cd
. /etc/os-release

if [ "${USER}" = "root" ]; then
  installpkgs="no"
  for cmd in zsh vim git htop tmux sudo; do
    cmdpath="$(command -v "${cmd}" 2>/dev/null || true)"
    if [ -z "${cmdpath}" ]; then
      installpkgs="yes"
    fi
  done

  if [ "${installpkgs}" = "yes" ]; then
    if [ -e "/usr/bin/pacman" ]; then
      pacman -S --noconfirm zsh vim git htop tmux sudo
    elif [ -e "/usr/bin/apt-get" ]; then
      apt-get install zsh vim git htop tmux sudo
    else
      echo "Unknown package manager, can't install dependencies"
    fi
  fi
fi

if [ -e ".dotfiles" ]; then
  if [ -e ".dotfiles/.git" ]; then
    (cd .dotfiles && git pull)
  fi
else
  git clone https://github.com/lukas2511/dotfiles.git .dotfiles

  for oldfile in .zshrc .vimrc .gitconfig; do
    if [ -e "${oldfile}" ]; then
      if [ ! -e ".dotfiles/_oldshit" ]; then
        echo "Old configurations will be stored under .dotfiles/_oldshit"
        mkdir -p .dotfiles/_oldshit
        echo "_oldshit" >> .dotfiles/.git/info/exclude
      fi
      mv -v "${oldfile}" .dotfiles/_oldshit/
    fi
  done

  ln -s ~/.dotfiles/zshrc .zshrc
  echo 'source ~/.dotfiles/vimrc' > .vimrc
  mkdir -p .vimbackup
  ln -s ~/.dotfiles/git/config .gitconfig
fi

ZSH="$(command -v zsh 2>/dev/null || true)"
CURSH="$(getent passwd root | cut -d':' -f7)"
if [ -n "${ZSH}" ] && [ ! "${ZSH}" = "${CURSH}" ]; then
  echo "Changing login shell to zsh"
  chsh -s "${ZSH}" root
fi

if [ -e ".lukas2511" ] || [ -e "/home/lukas2511" ] || (getent passwd lukas2511 >/dev/null); then
  echo "User lukas2511 detected, installing ssh keys in 5 seconds, ctrl+c to abort"
  sleep 5
  mkdir -p .ssh
  for key in 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH7W3NIGeEGRHu63+dP7s6M5/s0uHODI4QV2Y1yOzDEq'; do
    if [ ! -e .ssh/authorized_keys ] || ! grep -q "${key}" .ssh/authorized_keys; then
      echo "Adding: ${key}"
      echo "${key}" >> .ssh/authorized_keys
    fi
  done
fi