from __future__ import annotations

from dataclasses import dataclass


@dataclass(frozen=True)
class Flashcard:
    question: str
    short_answer: str
    long_answer: str
    concept: str = ""
    difficulty: str = "medium"
    bloom_level: str = "understand"

    @property
    def answer(self) -> str:
        """Backward-compatible combined answer used by older tests/exports."""
        return f"Short answer: {self.short_answer}\n\nLong answer: {self.long_answer}"


@dataclass(frozen=True)
class GenerationSettings:
    chunk_min_tokens: int = 300
    chunk_max_tokens: int = 500
    concepts_per_chunk: int = 5
    cards_per_concept: int = 1
    generate_all_possible: bool = False
    harden_questions: bool = True
    model_name: str = "google/flan-t5-small"
    use_model: bool = True