#!/usr/bin/env python3


import os
from typing import List


from git import checkout_branch
from utils import mkcd
from submission import Submission


class BaseCommand:
    def __init__(self, submissions: List[Submission]) -> None:
        self.submissions = submissions

    def __call__(self) -> None:
        for submission in self.submissions:
            self.exec(submission)

    def exec(self, submission: Submission) -> None:
        raise NotImplementedError()


class BaseGitCommand(BaseCommand):
    def __call__(self) -> None:
        for submission in self.submissions:
            checkout_branch(submission.branch)
            mkcd(f"{submission.homework}/{submission.login}")

            self.exec(submission)

            os.chdir("../..")
            checkout_branch("master")