"""Test configuration and fixtures."""
import pytest
from sqlmodel import Session, SQLModel, create_engine
from sqlmodel.pool import StaticPool
from fastapi.testclient import TestClient

from src.main import app
from src.api.deps import get_db
from src.models.user import User
from src.models.task import Task


@pytest.fixture(name="session")
def session_fixture():
    """Create a fresh database session for each test."""
    engine = create_engine(
        "sqlite:///:memory:",
        connect_args={"check_same_thread": False},
        poolclass=StaticPool,
    )
    SQLModel.metadata.create_all(engine)
    with Session(engine) as session:
        yield session


@pytest.fixture(name="client")
def client_fixture(session: Session):
    """Create a test client with overridden database session."""
    def get_db_override():
        yield session

    app.dependency_overrides[get_db] = get_db_override
    client = TestClient(app)
    yield client
    app.dependency_overrides.clear()


@pytest.fixture(name="test_user")
def test_user_fixture(session: Session):
    """Create a test user."""
    user = User(
        email="test@example.com",
        name="Test User"
    )
    session.add(user)
    session.commit()
    session.refresh(user)
    return user


@pytest.fixture(name="test_task")
def test_task_fixture(session: Session, test_user: User):
    """Create a test task."""
    task = Task(
        user_id=test_user.id,
        title="Test Task",
        description="Test Description",
        completed=False
    )
    session.add(task)
    session.commit()
    session.refresh(task)
    return task