import pytest

import redis

from apollo_main_db.base import Base
from handle_user_changes import config
from handle_user_changes.main_db import engine, session_scope
from tests import factories


def register_factories(session):
    """Pass session to factory model"""
    for factory in (
        factories.UserDeviceFactory,
    ):
        factory._meta.sqlalchemy_session = session


@pytest.yield_fixture
def db_session():
    """Returns an sqlalchemy session, and after the test tears down."""
    Base.metadata.create_all(engine)
    with session_scope() as session:
        register_factories(session)
        yield session
    Base.metadata.drop_all(engine)


@pytest.fixture
def redis_client():
    """Redis client"""
    return redis.StrictRedis(config.REDIS_HOST, config.REDIS_PORT)


@pytest.fixture(autouse=True)
def redis_flush(redis_client):
    """Flush all before each test"""
    redis_client.flushall()