#!/bin/bash
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
# SPDX-LicenseComment: This file is part of the CISS.hardened.installer framework.
# SPDX-PackageName: CISS.debian.live.builder
# SPDX-Security-Contact: security@coresecret.eu

#######################################
# Change Grub Boot Screen Splash
# Globals:
#   boot_screen_pid
#   boot_screen_pipe
# Arguments:
#  None
#######################################
boot_screen() {
  clear
  declare -gr boot_screen_pipe="/tmp/progress.fifo"
  [[ -p "${boot_screen_pipe}" ]] || mkfifo "${boot_screen_pipe}"

  setsid dialog --no-collapse \
                --ascii-lines \
                --keep-tite \
                --title "CISS.debian.live.builder" \
                --gauge "Starting initialization..." \
                10 70 0 \
                < "${boot_screen_pipe}" &
  declare -gr boot_screen_pid="$!"
  exec 3> "${boot_screen_pipe}"
}

#######################################
# Boot Screen Terminal Cleaner
# Globals:
#   boot_screen_pid
#   boot_screen_pipe
# Arguments:
#  None
#######################################
boot_screen_cleaner() {
  exec 3>&-
  kill -TERM -- -"${boot_screen_pid}" 2>/dev/null || true
  wait "${boot_screen_pid}" 2>/dev/null || true
  rm -f "${boot_screen_pipe}"
  clean_screen
  sleep 1
}
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh