#!/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

#######################################
# Account setup PHYSNET specific.
# Globals:
#   RECOVERY
#   TARGET
#   VAR_RUN_RECOVERY
#   VAR_SETUP_PATH
#   user_root_shell
# Arguments:
#   None
# Returns:
#   0: on success
#######################################
accounts_setup_physnet_root() {
  ### Declare Arrays, HashMaps, and Variables.
  declare     var_target="${TARGET}"

  ### Check for TARGET / RECOVERY.
  [[ "${VAR_RUN_RECOVERY}" == "true" ]] && var_target="${RECOVERY}"

  install -d -m 0700 -o root -g root "${var_target}/root/.ssh"
  install -m 0600 -o root -g root /dev/null "${var_target}/root/.ssh/authorized_keys"

  install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.physnet.bashrc" "${var_target}/root/.bashrc"
  install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/theme_eza_ciss.yml" "${var_target}/root/.ciss/"
  install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/alias" "${var_target}/root/.ciss/"
  install -m 0700 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/check_chrony.sh" "${var_target}/root/.ciss/"
  install -m 0700 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/clean_logout.sh" "${var_target}/root/.ciss/"
  install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/f2bchk" "${var_target}/root/.ciss/"
  install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/scan_libwrap" "${var_target}/root/.ciss/"
  install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/shortcuts" "${var_target}/root/.ciss/"

  insert_comments "${var_target}/root/.bashrc"
  insert_comments "${var_target}/root/.ciss/alias"
  insert_comments "${var_target}/root/.ciss/check_chrony.sh"
  insert_comments "${var_target}/root/.ciss/clean_logout.sh"
  insert_comments "${var_target}/root/.ciss/f2bchk"
  insert_comments "${var_target}/root/.ciss/scan_libwrap"
  insert_comments "${var_target}/root/.ciss/shortcuts"

  if [[ "${user_root_shell}" == "/bin/zsh" ]]; then

    if [[ -x "${var_target}${user_root_shell}" ]]; then

      zsh_omz_installer "root" "${var_target}"
      mkdir -p "${var_target}/root/.ciss/cdi/backup/root"
      mv "${var_target}/root/.zshrc" "${var_target}/root/.ciss/cdi/backup/root/.zshrc.bak"
      install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.physnet.zshrc" "${var_target}/root/.zshrc"
      insert_comments "${var_target}/root/.zshrc"

      chroot_exec "${var_target}" chsh -s "${user_root_shell}" root
      do_log "info" "file_only" "4520() Shell: '${user_root_shell}' used for: 'root'."

    else

      chroot_exec "${var_target}" chsh -s /bin/bash root
      do_log "info" "file_only" "4520() Shell: '${user_root_shell}' not found for: 'root'. Using '/bin/bash' instead."

    fi

  fi

  do_log "info" "file_only" "4520() Skeleton: 'root' successfully generated."

  guard_dir && return 0
}
### Prevents accidental 'unset -f'.
# shellcheck disable=SC2034
readonly -f accounts_setup_physnet_root

#######################################
# Generates user account skeleton and activates chosen bash / zsh.
# Globals:
#   RECOVERY
#   TARGET
#   VAR_RUN_RECOVERY
#   VAR_SETUP_PATH
# Arguments:
#   1: var_uid
#   2: var_gid
#   3: var_username
#   4: var_shell
# Returns:
#   0: on success
#######################################
accounts_setup_physnet_user() {
  ### Declare Arrays, HashMaps, and Variables.
  declare -r  var_uid="${1}" var_gid="${2}" var_username="${3}" var_shell="${4}"
  declare     var_target="${TARGET}"

  ### Check for TARGET / RECOVERY.
  [[ "${VAR_RUN_RECOVERY}" == "true" ]] && var_target="${RECOVERY}"

  install -d -m 0700 -o "${var_uid}" -g "${var_gid}" "${var_target}/home/${var_username}/.ssh"
  install -m 0600 -o "${var_uid}" -g "${var_gid}" /dev/null "${var_target}/home/${var_username}/.ssh/authorized_keys"
  install -m 0600 -o "${var_uid}" -g "${var_gid}" "${VAR_SETUP_PATH}/includes/target/etc/skel/.physnet.bashrc" "${var_target}/home/${var_username}/.bashrc"

  if [[ "${var_shell}" == "/bin/zsh" ]]; then

    if [[ -x "${var_target}${var_shell}" ]]; then

      zsh_omz_installer "${var_username}" "${var_target}"
      mv "${var_target}/home/${var_username}/.zshrc" "${var_target}/home/${var_username}/.zshrc.bak"
      install -m 0600 -o "${var_uid}" -g "${var_gid}" "${VAR_SETUP_PATH}/includes/target/etc/skel/.physnet.zshrc" "${var_target}/home/${var_username}/.zshrc"

      chroot_exec "${var_target}" chsh -s "${var_shell}" "${var_username}"
      do_log "info" "file_only" "4520() Shell: '${var_shell}' used for: '${var_username}'."

    else

      chroot_exec "${var_target}" chsh -s /bin/bash "${var_username}"
      do_log "info" "file_only" "4520() Shell: '${var_shell}' not found for: '${var_username}'. Using '/bin/bash' instead."

    fi

  fi

  do_log "info" "file_only" "4520() Skeleton: '${var_username}' successfully generated."

  guard_dir && return 0
}
### Prevents accidental 'unset -f'.
# shellcheck disable=SC2034
readonly -f accounts_setup_physnet_user
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh