from __future__ import annotations

from redis import Redis


class IdempotencyStore:
    def __init__(self, redis_client: Redis, set_key: str = "scenarist:idempotency:processed") -> None:
        self.redis = redis_client
        self.set_key = set_key

    def is_processed(self, key: str) -> bool:
        return self.redis.sismember(self.set_key, key)

    def mark_processed(self, key: str) -> None:
        self.redis.sadd(self.set_key, key)