#!/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

#######################################
# Parsing './.preseed/preseed.yaml'.
# Globals:
#   ARY_NTPSRVR
#   ARY_PACKAGES
#   DIR_CNF
#   DIR_TMP
#   VAR_PRESEED
# Arguments:
#   None
# Returns:
#   0: on success
#######################################
yaml_parser() {
  cat "${DIR_CNF}/preseed.yaml" "${DIR_CNF}/partitioning.yaml" >| "${DIR_TMP}/combined.yaml"

  yq -o=shell "${DIR_TMP}/combined.yaml" >| "${VAR_PRESEED}"

  declare -agx ARY_NTPSRVR ARY_PACKAGES
  declare var_key var_value

  while IFS='=' read -r var_key var_value; do
    var_value=${var_value#\'}
    var_value=${var_value%\'}
    case "${var_key}" in
      ntp_server_[0-9]*) ARY_NTPSRVR+=("${var_value}") ;;
      software_[0-9]*)   ARY_PACKAGES+=("${var_value}") ;;
    esac
  done < "${VAR_PRESEED}"

  sed -i '/^software_[0-9]\+=/d' "${VAR_PRESEED}"
  sed -i '/^ntp_server_[0-9]\+=/d' "${VAR_PRESEED}"

  ### Substitute all key= by key=""
  sed -i -E 's/^(.*)=\s*$/\1=""/' "${VAR_PRESEED}"
  ### Wrap each key=value by '' e.g., key='value'
  sed -i -E "s/^(.*)=([^'\"]+)$/\1='\2'/" "${VAR_PRESEED}"

  return 0
}
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
