from __future__ import annotations

from datetime import datetime, timezone

import pytest
from fastapi import HTTPException
from sqlalchemy import create_engine, select
from sqlalchemy.orm import Session

from app.database import Base
from app.main import _check_rate_limit
from app.models import SubmissionAttempt


def test_rate_limit_is_persistent_and_does_not_store_raw_client() -> None:
    engine = create_engine("sqlite://")
    Base.metadata.create_all(engine)
    with Session(engine) as db:
        for _ in range(5):
            _check_rate_limit("203.0.113.42", db)
        with pytest.raises(HTTPException) as blocked:
            _check_rate_limit("203.0.113.42", db)
        assert blocked.value.status_code == 429
        attempts = list(db.scalars(select(SubmissionAttempt)))
        assert len(attempts) == 5
        assert all(item.client_hash != "203.0.113.42" and len(item.client_hash) == 64 for item in attempts)
        assert all(item.created_at.replace(tzinfo=timezone.utc) <= datetime.now(timezone.utc) for item in attempts)