#!/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

#######################################
# Function to prepare the filesystem to mount each partition on the respective path.
# Globals:
#   HMP_MOUNTPATH_DEV
#   VAR_RECIPE_STRING
#   VAR_SETUP_PART
# Arguments:
#  None
#######################################
setup_filesystem() {
  ### Declare Arrays and Variables.
  declare -Ag HMP_MOUNTPATH_DEV
  declare var_dev var_part var_encryption_enable var_encryption_label var_mount_enable var_mount_path

  ### Iterate over all devices in the recipe.
  for var_dev in $(yq e ".recipe.${VAR_RECIPE_STRING}.dev | keys | .[]" "${VAR_SETUP_PART}"); do

    ### Iterate over all partitions for this device.
    for var_part in $(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev} | keys | .[]" "${VAR_SETUP_PART}"); do

      ### Extract parameters from YAML.
      var_encryption_enable=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.encryption.enable" "${VAR_SETUP_PART}")
      var_encryption_label=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.encryption.label"   "${VAR_SETUP_PART}")
      var_mount_enable=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.mount.enable"           "${VAR_SETUP_PART}")
      var_mount_path=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.mount.path"               "${VAR_SETUP_PART}")

      if [[ "${var_mount_enable,,}" == "true" ]]; then

        if [[ -n "${var_mount_path}" ]]; then

          if [[ "${var_encryption_enable,,}" == "true" && "${var_mount_path}" != "SWAP" && "${var_mount_path}" != "/tmp" ]]; then

            ### Encrypted partition
            HMP_MOUNTPATH_DEV["${var_mount_path}"]="/dev/mapper/${var_encryption_label}"
            do_log "info" "false" "Saved in HashMap MAP_MOUNTPATH_DEV: '${var_mount_path}' -> '${HMP_MOUNTPATH_DEV["${var_mount_path}"]}'"

          elif [[ "${var_encryption_enable,,}" == "false" && "${var_mount_path}" != "SWAP" && "${var_mount_path}" != "/tmp" ]]; then

            ### Unencrypted partition
            HMP_MOUNTPATH_DEV["${var_mount_path}"]="/dev/${var_dev}${var_part}"
            do_log "info" "false" "Saved in HashMap MAP_MOUNTPATH_DEV: '${var_mount_path}' -> '${HMP_MOUNTPATH_DEV["${var_mount_path}"]}'"

          else

            do_log "error" "false" "Invalid value for encryption_enable: '${var_encryption_enable}', should be either true or false."

          fi

        fi

      fi

    done

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