from abc import ABC, abstractmethod
from typing import List, Dict, Optional


class ISpeakingService(ABC):

    @abstractmethod
    async def get_speaking_part(
            self, part: int, topic: str, difficulty: str, second_topic: Optional[str] = None
    ) -> Dict:
        pass

    @abstractmethod
    async def grade_speaking_task(self, task: int, answers: List[Dict]) -> Dict:
        pass

    @abstractmethod
    async def create_videos_and_save_to_db(self, exercises: List[Dict], template: Dict, req_id: str):
        pass

    @abstractmethod
    async def generate_video(
            self, part: int, avatar: str, topic: str, questions: list[str],
            *,
            second_topic: Optional[str] = None,
            prompts: Optional[list[str]] = None,
            suffix: Optional[str] = None,
    ):
        pass