import os.path

from injectable import injectable
from pykeepass import PyKeePass, create_database, Group
import shutil


@injectable(singleton=True)
class Passwords:
  def __init__(self):
    from app.config import get_settings
    settings = get_settings()

    with open(settings.kp.secret, "r") as fh:
      secret = fh.read()
    self._path = settings.kp.file
    self._kp_org = self._open_or_create(self._path, secret)
    self._kp = self._open_lock(self._path, secret)

  @staticmethod
  def _open_or_create(path, password) -> PyKeePass:
    if os.path.exists(path):
      return PyKeePass(path, password=password)
    return create_database(path, password)

  @staticmethod
  def _open_lock(path, password) -> PyKeePass:
    lock_path = path + ".lock"
    shutil.copyfile(path, lock_path)
    return Passwords._open_or_create(lock_path, password)

  @property
  def kp(self) -> PyKeePass:
    return self._kp

  def save(self):
    # nadpisz plik źródłowy zmianami z lock
    self._kp.save()
    shutil.copyfile(self._path + ".lock", self._path)