from typing import TYPE_CHECKING, List

if TYPE_CHECKING:
    from .parents import DatabaseObject


class Options:
    def __init__(self, option_list: List['DatabaseObject'] = None):
        self._data: List['DatabaseObject'] = option_list or list()

    def __str__(self):
        return "\n".join(f"{i:02d}: {database_object.option_string}" for i, database_object in enumerate(self._data))

    def __iter__(self):
        for database_object in self._data:
            yield database_object

    def get_next_options(self, index: int) -> 'Options':
        if index >= len(self._data):
            raise ValueError("Index out of bounds")

        return self._data[index].options

    def __getitem__(self, item: int) -> 'Options':
        if type(item) != int:
            raise TypeError("Key needs to be an Integer")

        return self.get_next_options(item)