from collections.abc import Generator

import pytest
from fastapi.testclient import TestClient
from sqlalchemy import create_engine
from sqlalchemy.orm import Session, sessionmaker
from sqlalchemy.pool import StaticPool

from app.auth.dependencies import get_current_user
from app.db.session import get_db
from app.main import app
from app.models import Base, User


@pytest.fixture
def db_session() -> Generator[Session, None, None]:
    engine = create_engine(
        "sqlite://",
        connect_args={"check_same_thread": False},
        poolclass=StaticPool,
    )
    Base.metadata.create_all(bind=engine)
    testing_session_local = sessionmaker(bind=engine, autoflush=False, autocommit=False)

    with testing_session_local() as session:
        yield session

    Base.metadata.drop_all(bind=engine)
    engine.dispose()


@pytest.fixture
def client(db_session: Session) -> Generator[TestClient, None, None]:
    def override_get_db() -> Generator[Session, None, None]:
        yield db_session

    def override_current_user() -> User:
        return User(
            id=1,
            email="owner@example.com",
            display_name="Test Owner",
            hashed_password="not-used",
            role="owner",
            is_active=True,
        )

    app.dependency_overrides[get_db] = override_get_db
    app.dependency_overrides[get_current_user] = override_current_user
    with TestClient(app) as test_client:
        yield test_client
    app.dependency_overrides.clear()