"""
Pytest configuration and fixtures for SCM microservice tests.
"""
import pytest
import asyncio
from motor.motor_asyncio import AsyncIOMotorClient
import redis.asyncio as redis
from app.core.config import settings

# Test database and cache names
TEST_DB_NAME = "scm_test_db"
TEST_REDIS_DB = 15


@pytest.fixture(scope="session")
def event_loop():
    """Create an event loop for the test session"""
    loop = asyncio.get_event_loop_policy().new_event_loop()
    yield loop
    loop.close()


@pytest.fixture(scope="function")
async def test_db():
    """
    Provide a clean test database for each test.
    Drops the database after the test completes.
    """
    client = AsyncIOMotorClient(settings.MONGODB_URI)
    db = client[TEST_DB_NAME]
    
    yield db
    
    # Cleanup: drop the test database
    await client.drop_database(TEST_DB_NAME)
    client.close()


@pytest.fixture(scope="function")
async def test_redis():
    """
    Provide a clean Redis instance for each test.
    Flushes the test database after the test completes.
    """
    redis_client = redis.Redis(
        host=settings.REDIS_HOST,
        port=settings.REDIS_PORT,
        password=settings.REDIS_PASSWORD,
        db=TEST_REDIS_DB,
        decode_responses=True
    )
    
    yield redis_client
    
    # Cleanup: flush the test database
    await redis_client.flushdb()
    await redis_client.close()