"""
conftest.py — sys.modules stubs so tests run without the full Docker venv.
All heavy external packages are replaced with MagicMocks before any app.*
module is imported. Individual tests patch specific methods as needed.
"""

import os
import sys
from unittest.mock import MagicMock, AsyncMock

# ── Fake env vars required at llm_service.py module level ─────────────────────
os.environ.setdefault('GEMINI_API_KEY', 'test-key-gemini')
os.environ.setdefault('OPENAI_API_KEY', 'test-key-openai')


def _stub(*names):
    """Register MagicMocks under each name in sys.modules."""
    for name in names:
        if name not in sys.modules:
            sys.modules[name] = MagicMock()


# ── External packages not present in system Python ────────────────────────────
_stub(
    'google', 'google.genai', 'google.genai.types',
    'openai', 'openai.types', 'openai.types.responses',
    'motor', 'motor.motor_asyncio',
    'pymongo', 'pymongo.errors',
    'quart', 'quart_cors', 'hypercorn', 'werkzeug', 'werkzeug.exceptions',
    'socketio',
    'bcrypt', 'jwt', 'msal',
    'bson', 'bson.objectid',
    'pydantic',
    'PIL', 'PIL.Image',
    'httpx', 'requests',
    'dotenv',
    'llama_cloud_services',
)

# ── app.db ─────────────────────────────────────────────────────────────────────
# Any `from app.db import get_db` will capture this AsyncMock.
# Tests that need to control DB responses should patch
# `app.models.<module>.get_db` (i.e. the local binding in the module under test).

_mock_db = MagicMock()
_mock_get_db = AsyncMock(return_value=_mock_db)

_app_db_mod = MagicMock()
_app_db_mod.get_db = _mock_get_db
sys.modules['app.db'] = _app_db_mod

# Expose for tests
mock_db = _mock_db