"""Pytest-Konfiguration: Redis-Mock und Datenbank-Reset."""

from __future__ import annotations

import sys
import unittest.mock as mock

import fakeredis
import pytest
from src.database import Base, _engine


# --- Fake redis module that provides real-like exceptions ---

import redis as _real_redis

class _FakeRedis:
    """Wraps fakeredis with the correct redis.exceptions hierarchy."""
    @staticmethod
    def exceptions():
        return _real_redis.exceptions

    def __init__(self, *args, **kwargs):
        self._conn = fakeredis.FakeStrictRedis(decode_responses=True)

    def __getattr__(self, name):
        return getattr(self._conn, name)

    @property
    def exceptions(self):
        return _real_redis.exceptions


# Install BEFORE any app code runs
sys.modules["redis"] = mock.MagicMock()
sys.modules["redis"].Redis = _FakeRedis
sys.modules["redis"].exceptions = _real_redis.exceptions


@pytest.fixture(autouse=True)
def reset_db() -> None:
    """Setzt die Datenbank vor jedem Test zurueck."""
    Base.metadata.drop_all(bind=_engine)
    Base.metadata.create_all(bind=_engine)