#!/usr/bin/env bash

#=======================================================================#
# Copyright (C) 2020 - 2023 Dominik Willner <th33xitus@gmail.com>       #
#                                                                       #
# This file is part of KIAUH - Klipper Installation And Update Helper   #
# https://github.com/dw-0/kiauh                                         #
#                                                                       #
# This file may be distributed under the terms of the GNU GPLv3 license #
#=======================================================================#

set -e
clear

### sourcing all additional scripts
KIAUH_SRCDIR="$(dirname -- "$(readlink -f "${BASH_SOURCE[0]}")")"
for script in "${KIAUH_SRCDIR}/scripts/"*.sh; do . "${script}"; done
for script in "${KIAUH_SRCDIR}/scripts/ui/"*.sh; do . "${script}"; done

#===================================================#
#=================== UPDATE KIAUH ==================#
#===================================================#

function update_kiauh() {
  status_msg "Updating KIAUH ..."

  cd "${KIAUH_SRCDIR}"
  git reset --hard && git pull

  ok_msg "Update complete! Please restart KIAUH."
  exit 0
}

#===================================================#
#=================== KIAUH STATUS ==================#
#===================================================#

function kiauh_update_avail() {
  [[ ! -d "${KIAUH_SRCDIR}/.git" ]] && return
  local origin head

  cd "${KIAUH_SRCDIR}"

  ### abort if not on master branch
  ! git branch -a | grep -q "\* master" && return

  ### compare commit hash
  git fetch -q
  origin=$(git rev-parse --short=8 origin/master)
  head=$(git rev-parse --short=8 HEAD)

  if [[ ${origin} != "${head}" ]]; then
    echo "true"
  fi
}

function kiauh_update_dialog() {
  [[ ! $(kiauh_update_avail) == "true" ]] && return
  top_border
  echo -e "|${green}              New KIAUH update available!              ${white}|"
  hr
  echo -e "|${green}  View Changelog: https://git.io/JnmlX                 ${white}|"
  blank_line
  echo -e "|${yellow}  It is recommended to keep KIAUH up to date. Updates  ${white}|"
  echo -e "|${yellow}  usually contain bugfixes, important changes or new   ${white}|"
  echo -e "|${yellow}  features. Please consider updating!                  ${white}|"
  bottom_border

  local yn
  read -p "${cyan}###### Do you want to update now? (Y/n):${white} " yn
  while true; do
    case "${yn}" in
      Y|y|Yes|yes|"")
        do_action "update_kiauh"
        break;;
      N|n|No|no)
        break;;
      *)
        deny_action "kiauh_update_dialog";;
    esac
  done
}

check_euid
init_logfile
set_globals
kiauh_update_dialog
main_menu