from typing import List, Union
from enum import Enum


class MacroReplacement(Enum):
    author = 'author'
    shortauthor = 'shortauthor'
    date = 'date'
    year = 'year'
    version = 'version',
    file_name = 'file_name'
    name = 'name'  # class or package name
    repo_version = 'repo_version'
    pytex_version = 'pytex_version'


class Macro:
    def __init__(self):
        raise NotImplementedError

    def matches(self, line: str) -> bool:
        raise NotImplementedError

    def apply(self, line: str, *args, **kwargs) -> Union[str, List[str]]:
        raise NotImplementedError