"""
Test configuration and fixtures
"""

from typing import AsyncGenerator

import pytest_asyncio
from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker

# In-memory SQLite: fully isolated, no disk state between test sessions
TEST_DATABASE_URL = "sqlite+aiosqlite:///:memory:"


@pytest_asyncio.fixture
async def async_engine():
    from database.models import Base

    engine = create_async_engine(TEST_DATABASE_URL, echo=False)

    async with engine.begin() as conn:
        await conn.run_sync(Base.metadata.create_all)

    yield engine

    async with engine.begin() as conn:
        await conn.run_sync(Base.metadata.drop_all)

    await engine.dispose()


@pytest_asyncio.fixture
async def async_session(async_engine) -> AsyncGenerator[AsyncSession, None]:
    async_session_factory = async_sessionmaker(
        bind=async_engine,
        class_=AsyncSession,
        expire_on_commit=False,
    )

    async with async_session_factory() as session:
        yield session