from pathlib import Path

import pytest
from fastapi.testclient import TestClient
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker


@pytest.fixture()
def client(tmp_path: Path, monkeypatch: pytest.MonkeyPatch):
    monkeypatch.setenv("DATA_DIR", str(tmp_path))

    from app.config import Settings
    import app.config as config_module
    import app.db as db_module
    import app.main as main_module
    from app.services import rate_limit as rate_limit_module

    settings = Settings(_env_file=None, DATA_DIR=tmp_path)
    config_module.settings = settings
    # Multi-create tests are not about rate limits; the dedicated test sets 2/s.
    monkeypatch.setattr(config_module.settings, "rate_limit_per_second", 10_000)
    rate_limit_module.reset()

    engine = create_engine(
        settings.db_url,
        connect_args={"check_same_thread": False},
    )
    SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
    db_module.engine = engine
    db_module.SessionLocal = SessionLocal
    main_module.engine = engine

    with TestClient(main_module.app) as test_client:
        yield test_client