#!/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


###########################################################################################
# Function to format the respective partition on each device according to the recipe string chosen.
partition_formatting() {
  ### 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_fs_btrfs_checksum=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.btrfs.checksum" "${VAR_SETUP_PART}")
      var_fs_btrfs_compress=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.btrfs.compress" "${VAR_SETUP_PART}")
      var_fs_btrfs_dedup=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.btrfs.dedup"       "${VAR_SETUP_PART}")
      var_fs_format=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.format"                 "${VAR_SETUP_PART}")
      var_fs_label=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.label"                   "${VAR_SETUP_PART}")
      var_fs_options=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.options"               "${VAR_SETUP_PART}")
      var_fs_version=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.version"               "${VAR_SETUP_PART}")
      var_mount_path=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.mount.path"                       "${VAR_SETUP_PART}")


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

        if [[ "${var_fs_format,,}" == "true" && "${var_fs_version}" == "btrfs" ]]; then

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

            mkfs.btrfs -L "${var_fs_label}" "/dev/mapper/${var_encryption_label}" -f --csum "${var_fs_btrfs_checksum}" -m dup -O compress="${var_fs_btrfs_compress}"
            do_log "info" "false" "Partition: '/dev/mapper/${var_encryption_label}' formatted: '${var_fs_version}'."

            # shellcheck disable=SC2129
            echo "Partition: '/dev/mapper/${var_encryption_label}':" >> "${DIR_LOG}/btrfs.log"
            btrfs filesystem show "/dev/mapper/${var_encryption_label}" >> "${DIR_LOG}/btrfs.log"
            echo "" >> "${DIR_LOG}/btrfs.log"

          elif [[ "${var_fs_btrfs_dedup,,}" == "false" ]]; then

            mkfs.btrfs -L "${FILESYSTEM_LABEL}" /dev/mapper/"${ENCRYPTION_LABEL}" -f --csum "${BTRFS_CHECKSUM}" -O compress="${BTRFS_COMPRESS}"
            do_log "info" "false" "Partition: '/dev/mapper/${ENCRYPTION_LABEL}' formatted: '${FILESYSTEM_VERSION}'."
            # shellcheck disable=SC2129
            echo "Partition: '/dev/mapper/${ENCRYPTION_LABEL}':" >> "${DIR_LOG}"btrfs.log
            btrfs filesystem show /dev/mapper/"${ENCRYPTION_LABEL}" >> "${DIR_LOG}"btrfs.log
            echo "" >> "${DIR_LOG}"btrfs.log

          else

            do_log "error" "false" "Partition: '/dev/mapper/${ENCRYPTION_LABEL}': Unsupported deduplication method: '${BTRFS_DEDUP}'."

          fi

        elif [[ ${FILESYSTEM_FORMAT,,} == "true" && ${FILESYSTEM_FORMAT} == "ext4" ]]; then

          mkfs.ext4 -L "${FILESYSTEM_LABEL}" /dev/mapper/"${ENCRYPTION_LABEL}" "${FILESYSTEM_OPTIONS:+ $FILESYSTEM_OPTIONS}"
          do_log "info" "false" "Partition: '/dev/mapper/${ENCRYPTION_LABEL}' formatted: '${FILESYSTEM_VERSION}'."
          # shellcheck disable=SC2129
          echo "Partition: '/dev/mapper/${ENCRYPTION_LABEL}':" >> "${DIR_LOG}"ext4.log
          tune2fs -l /dev/mapper/"${ENCRYPTION_LABEL}" >> "${DIR_LOG}"ext4.log
          echo "" >> "${DIR_LOG}"ext4.log

        else

          do_log "error" "false" "Partition: '/dev/mapper/${ENCRYPTION_LABEL}': Unsupported filesystem format: '${FILESYSTEM_FORMAT}'."

        fi

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

        if [[ ${FILESYSTEM_FORMAT,,} == "true" && ${FILESYSTEM_FORMAT} == "btrfs" ]]; then

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

            mkfs.btrfs -L "${FILESYSTEM_LABEL}" /dev/"${DEV}""${PARTITION}" -f --csum "${BTRFS_CHECKSUM}" -m dup -O compress="${BTRFS_COMPRESS}"
            do_log "info" "false" "Partition: '/dev/${DEV}${PARTITION}' formatted: '${FILESYSTEM_VERSION}'."
            # shellcheck disable=SC2129
            echo "Partition: '/dev/${DEV}${PARTITION}':" >> "${DIR_LOG}"btrfs.log
            btrfs filesystem show /dev/"${DEV}""${PARTITION}" >> "${DIR_LOG}"btrfs.log
            echo "" >> "${DIR_LOG}"btrfs.log

          elif [[ ${BTRFS_DEDUP,,} == "false" ]]; then

            mkfs.btrfs -L "${FILESYSTEM_LABEL}" /dev/"${DEV}""${PARTITION}" -f --csum "${BTRFS_CHECKSUM}" -O compress="${BTRFS_COMPRESS}"
            do_log "info" "false" "Partition: '/dev/${DEV}${PARTITION}' formatted: '${FILESYSTEM_VERSION}'."
            # shellcheck disable=SC2129
            echo "Partition: '/dev/${DEV}${PARTITION}':" >> "${DIR_LOG}"btrfs.log
            btrfs filesystem show /dev/"${DEV}""${PARTITION}" >> "${DIR_LOG}"btrfs.log
            echo "" >> "${DIR_LOG}"btrfs.log

          else

            do_log "error" "false" "Partition: '/dev/${DEV}${PARTITION}': Unsupported deduplication method: '${BTRFS_DEDUP}'."

          fi

        elif [[ ${FILESYSTEM_FORMAT,,} == "true" && ${FILESYSTEM_FORMAT} == "ext4" ]]; then

          mkfs.ext4 -L "${FILESYSTEM_LABEL}" /dev/"${DEV}""${PARTITION}" "${FILESYSTEM_OPTIONS:+ $FILESYSTEM_OPTIONS}"
          do_log "info" "false" "Partition: '/dev/${DEV}${PARTITION}' formatted: '${FILESYSTEM_VERSION}'."
          # shellcheck disable=SC2129
          echo "Partition: '/dev/${DEV}${PARTITION}':" >> "${DIR_LOG}"ext4.log
          tune2fs -l /dev/"${DEV}""${PARTITION}" >> "${DIR_LOG}"ext4.log
          echo "" >> "${DIR_LOG}"ext4.log

        elif [[ ${FILESYSTEM_FORMAT,,} == "true" && ${FILESYSTEM_FORMAT} == "FAT32" ]]; then

          mkfs.fat -F 32 /dev/"${DEV}""${PARTITION}"
          do_log "info" "false" "Partition: '/dev/${DEV}${PARTITION}' formatted: '${FILESYSTEM_VERSION}'."

        else

          do_log "error" "false" "Partition: '/dev/${DEV}${PARTITION}': Unsupported filesystem format: '${FILESYSTEM_FORMAT}'."

        fi

      fi

    done

  done
}
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