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from typing import Iterable, NamedTuple
from trashcli.empty.user import User
from trashcli.trash_dirs_scanner import TrashDir
UserIntention = NamedTuple('UserIntention',
[('ok_to_empty', bool),
('trash_dirs', Iterable[TrashDir])])
class Guard:
def __init__(self, user): # type: (User) -> None
self.user = user
def ask_the_user(self,
parsed_interactive, # type: bool
trash_dirs, # type: Iterable[TrashDir]
): # type: (...) -> UserIntention
if parsed_interactive:
return self._interactive(trash_dirs)
else:
return self.non_interactive(trash_dirs)
def _interactive(self, trash_dirs, # type: Iterable[TrashDir]
): # type: (...) -> UserIntention
trash_dirs_list = list(trash_dirs) # type: Iterable[TrashDir]
ok_to_empty = \
self.user.do_you_wanna_empty_trash_dirs(trash_dirs_list)
list_result = trash_dirs_list if ok_to_empty else []
return UserIntention(ok_to_empty=ok_to_empty,
trash_dirs=list_result)
def non_interactive(self,
trash_dirs, # type: Iterable[TrashDir]
):
trash_dirs_list = trash_dirs # type: Iterable[TrashDir]
return UserIntention(ok_to_empty=True,
trash_dirs=trash_dirs_list)
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