# -*- coding: utf-8 -*-
from abc import ABCMeta, abstractmethod, abstractproperty
from typing import BinaryIO

from TYPES import TorrentTypes
from os.path import splitext as getext
from re import match
from Config import tmpDir


class Torrent(object):
    __metaclass__ = ABCMeta

    def __init__(self, url: str, path: str):
        self.url = url
        self.path = path
        if not (self.validate()):
            raise ValueError

    @property
    @abstractmethod
    def torrent_type(self) -> TorrentTypes:
        pass

    @abstractmethod
    def validate(self) -> bool:
        pass

    @property
    def value(self) -> str:
        return self.value


class MagnetLink(Torrent):

    @property
    def torrent_type(self) -> TorrentTypes:
        return TorrentTypes.MAGNET

    def validate(self) -> bool:
        pattern = r"^magnet:\?xt=urn:btih:[a-fA-F0-9]{40}.*$"
        if match(pattern, self.url):
            return True


class TorrentFile(Torrent):

    def __init__(self, url: str, path: str):
        super().__init__(url, path)
        self.url = f"{tmpDir}/{url}"

    @property
    def torrent_type(self) -> TorrentTypes:
        return TorrentTypes.FILE

    def validate(self) -> bool:
        if getext(self.url)[1].lower() == ".torrent":
            return True