#!/usr/bin/env miaou-bash

# CONSTANTS

readonly REQUIRED_PKGS=(file jq vim git)
readonly BACKUP='ORIGINAL'

# FUNCTIONS

function required_packages {
  "$MIAOU_BASH_DIR/tools/idem_apt_install" "${REQUIRED_PKGS[@]}"
}

function no_more_skeleton {
  if [[ -e /etc/skel/.bashrc ]]; then
    rm /etc/skel/.bashrc
    echo "skeleton .bashrc removed!"
  fi
}

function link_etc {
  local filename="$1" subfolder="${2:-}"
  local source="$MIAOU_BASH_DIR/etc"
  local destination="/etc"
  [[ -n "$subfolder" ]] && source+="/${subfolder}" && destination+="/${subfolder}"
  if [[ -L "$destination/$filename" ]]; then
    if [[ "$(readlink "$destination/$filename")" != "$source/$filename" ]]; then
      ln -sf "$source/$filename" "$destination"
      echo "link $source/$filename updated"
    fi
  else
    if [[ -f "$destination/$filename" ]]; then
      mv "$destination/$filename" "$destination/$filename.$BACKUP"
      echo "$destination/$filename.$BACKUP saved!"
    fi
    ln -s "$source/$filename" "$destination"
    echo "link $source/$filename created"
  fi
}

function predefine_config_files {
  link_etc bash.bashrc
  link_etc inputrc
  link_etc vimrc.azerty vim
  link_etc vimrc.core vim
  link_etc vimrc.local vim
  link_etc vimrc.miaou vim
  link_etc vimrc.rookie vim
}

# MAIN

[ "$UID" -ne 0 ] && echo 'root privilege required' && exit 1
source "$MIAOU_BASH_DIR/lib/functions.bash"
required_packages
no_more_skeleton
predefine_config_files