#!/bin/bash
_help() {
    echo "
sbean: Spilling the beans, a keepassxc cli wrapper

commands:
- apt install keepassxc:
  install
- create database
  [db-file] [key-file] create
- list entries
  [db-file] [key-file] ls
- add new entry, password through stdin, or interactive
  [db-file] [key-file] add [entry-name] --user user-name
- get user name
  [db-file] [key-file] get-user [entry-name]
- get password
  [db-file] [key-file] get-password [entry-name]
- open database using cli
  [db-file] [key-file] open
- open database using keepassxc:
  [db-file] [key-file] openx

"
    exit
}

_exit() {
  clear
  exit
}

_error() {
  echo "$@" >/dev/stderr
  exit 1
}

_install() {
  dpkg -l keepassxc && return
  sudo apt-get install keepassxc
}

_create() {
  echo Creating new database
  set -e
  if [[ -z "$DBKEY" ]]; then _error "key required"; fi
  if [[ -z "$DBPATH" ]]; then _error "db required"; fi
  if [[ -e "$DBPATH" ]]; then _error "File $DBPATH already exists"; fi
  if [[ -e "$DBKEY" ]]; then _error "File $DBKEY already exists"; fi
  keepassxc-cli db-create -k "$DBKEY" "$DBPATH"
}

_ls() {
    keepassxc-cli ls -k "$DBKEY" --no-password -R -f "$DBPATH"
}

_add() {
    if [[ -z "$ENTRY" ]]; then _error "entry required"; fi
    keepassxc-cli add -k "$DBKEY" --no-password "$DBPATH" -p -u "$ENTRY_USER" "$ENTRY"
}

_get_user() {
    if [[ -z "$ENTRY" ]]; then _error "entry required"; fi
    keepassxc-cli show -k "$DBKEY" --no-password -a username "$DBPATH" "$ENTRY"
}

_get_pass() {
    if [[ -z "$ENTRY" ]]; then _error "entry required"; fi
    keepassxc-cli show -k "$DBKEY" --no-password -a password "$DBPATH" "$ENTRY"
}

_open() {
    keepassxc-cli open -k "$DBKEY" --no-password "$DBPATH"
}
_openx() {
    keepassxc --keyfile "$DBKEY" "$DBPATH"
}
for (( i=1; i<=$#; i++ )); do
  value=${!i}
  j=$(( i + 1 ))
  [[ "${value}" = "-"* ]] && {
    [[ "$value" =~ -h ]] && { _help; }
    [[ "$value" =~ --help ]] && { _help; }
    [[ "$value" =~ --user ]] && { ENTRY_USER="${!j}"; }
    i=$j
    continue
  }
  if [[ -z "$DBPATH" ]]; then DBPATH="${!i}"; continue; fi
  if [[ -z "$DBKEY" ]]; then DBKEY="${!i}"; continue; fi
  if [[ -z "$CMD" ]]; then CMD="${!i}"; continue; fi
  if [[ -z "$ENTRY" ]]; then ENTRY="${!i}"; continue; fi
done

if [[ ! "$CMD" = install ]]; then
    which keepassxc-cli &> /dev/null || {
      echo Missing keepassxc-cli >/dev/stderr
      exit 1
    }
fi

case $CMD in
  install) _install;;
  create) _create;;
  ls) _ls;;
  add) _add;;
  get-user) _get_user;;
  get-pass*) _get_pass;;
  open) _open;;
  openx) _openx;;
  *) _help;;
esac