#!/bin/bash

## Copyright (C) 2025 - 2025 Benjamin Grande M. S. <ben.grande.b@gmail.com>
## Copyright (C) 2025 - 2025 ENCRYPTED SUPPORT LLC <adrelanos@whonix.org>
## See the file COPYING for copying conditions.

set -euo pipefail -o errtrace

source "${HELPER_SCRIPTS_PATH:-}"/usr/libexec/helper-scripts/accountctl.sh

usage(){
  printf '%s\n' "Usage: ${0##*/} [USER|GROUP] CMD [ARGS]

User state commands:
  lock-pass                 Lock password by prefixing it with '!'
  unlock-pass               Unlock password by removing the prefix '!'
  disable-pass              Disable password with '*'
  enable-pass               Enable password removing '*'

User print commands:
  get-pass                  Print password
  get-clean-pass [PREFIX]   Print password without prefix, default: '!*'

User query commands:
  is-user                   Check if user exists or error out
  is-pass-empty             Check if password is empty or error out
  is-pass-locked            Check if password is locked or error out
  is-pass-disabled          Check if password is disabled or error out

Group query commands:
  is-group                  Check if group exists or error out

User and Group print commands:
  get-entry DB FIELD        Print field per database
    passwd
      [pass|uid|gid|comment|home|shell]
    shadow
      [pass|last-pass-change|min-pass-age|
       max-pass-age|warn-pass-period|
       lock-pass-period|expiration-date]
    group
      [pass|gid|members]
    gshadow
      [pass|admins|members]

Examples:
  ${0##*/} user is-user
  ${0##*/} user get-clean-pass '\!\*'
  ${0##*/} user get-entry passwd shell
  ${0##*/} _ssh is-group
  ${0##*/} _ssh get-entry group members" >&2

  exit "${1:-1}"
}

main(){
  local user cmd symbol db field
  user="${1-}"
  cmd="${2-}"

  case "${cmd}" in
    lock-pass|unlock-pass|disable-pass|enable-pass|get-pass| \
    is-user|is-pass-empty|is-pass-locked|is-pass-disabled|is-group)
      ;;
    get-clean-pass) symbol="${3-}";;
    get-entry) db="${3-}"; field="${4-}";;
    -h|--?help|help) usage 0;;
    *) usage 1;;
  esac
  cmd="${cmd//-/_}"

  if test -z "${user}"; then
    usage 1
  fi

  case "${cmd}" in
    get_clean_pass) "${cmd}" "${user}" "${symbol}";;
    get_entry) "${cmd}" "${user}" "${db}" "${field}";;
    *) "${cmd}" "${user}";;
  esac
}

main "${@}"
