#!/bin/bash
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.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.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.installer
# SPDX-Security-Contact: security@coresecret.eu

guard_sourcing

#######################################
# Ensure systemd is in place.
# Every 'apt-get install' command is invoked by adding 'export INITRD=No'
# to suppress the 'update-initramfs'-Kernel-Hooks, according to the initramfs-tools manpage:
# https://manpages.debian.org/testing/initramfs-tools-core/initramfs-tools.7.en.html
# Globals:
#   RECOVERY
# Arguments:
#   None
# Returns:
#   0: on success
#######################################
installation_systemd_reco() {
  ### Declare Arrays, HashMaps, and Variables.
  declare -r  var_logfile="/root/.ciss/cdi/log/5131_installation_systemd.log"

  chroot_logger "${RECOVERY}${var_logfile}"

  if ! chroot_script "${RECOVERY}" "type -P systemctl >/dev/null"; then
    do_log "info" "file_only" "5131() 'systemctl' NOT found, installing 'systemd' and dependencies."

    chroot_script "${RECOVERY}" "
      export INITRD=No
      apt-get install -y --no-install-recommends --no-install-suggests systemd systemd-sysv dbus 2>&1 | tee -a ${var_logfile}
      echo ExitCode of PIPESTATUS[0]: [\${PIPESTATUS[0]}] >> ${var_logfile}
    "

  else

    do_log "info" "file_only" "5131() 'systemctl' found, skipping installation."

  fi

  chroot_script "${RECOVERY}" "
    systemctl --version 2>&1 | tee -a ${var_logfile} | grep -qi 'systemd' || echo '[WARN]: systemd not verifiable' >> ${var_logfile}
  "

  guard_dir && return 0
}
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