# -*- coding: utf-8 -*-

from __future__ import annotations
from typing import Iterable, TYPE_CHECKING

import abc

from ..Package import Package
from .Backend import Backend as Base

if TYPE_CHECKING:
    from ..Cmd import Cmd as Parent

class BePkg(Base):

    def __init__(self, parent: Parent):
        super().__init__(parent)

    async def files(self, name: str) -> Iterable[str]:
        return await self._files(name)

    @abc.abstractmethod
    async def _files(self, name: str) -> Iterable[str]:
        pass

    async def meta_data(self, names: Iterable[str]) -> Iterable[Package]:
        return await self._meta_data(names)

    @abc.abstractmethod
    async def _meta_data(self, names: Iterable[str]) -> Iterable[Package]:
        pass