import os
import sys
import json
from datetime import datetime
from unittest.mock import AsyncMock, MagicMock, patch

# Mock psycopg2 before importing main (see test_memory.py for rationale).
sys.modules["psycopg2"] = MagicMock()
sys.modules["psycopg2.pool"] = MagicMock()
sys.modules["psycopg2.extras"] = MagicMock()

sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))

import pytest

import main

main.NEXTCLOUD_CALDAV_URL = "https://cloud.ffw-onza.de/remote.php/dav/calendars/jonny/ffw-onza-alle/"
main.NEXTCLOUD_USER = "jonny"
main.NEXTCLOUD_APP_PASSWORD = "test-app-password"


@pytest.fixture(autouse=True)
def _reset_deck_cache():
    main._deck_cache.clear()
    yield
    main._deck_cache.clear()


class _FakeResponse:
    def __init__(self, status, payload):
        self.status = status
        self._payload = payload

    async def __aenter__(self):
        return self

    async def __aexit__(self, exc_type, exc, tb):
        return False

    async def json(self):
        return self._payload

    async def text(self):
        return json.dumps(self._payload)


class _FakeSession:
    def __init__(self, response):
        self._response = response
        self.request_calls = []

    def request(self, method, url, **kwargs):
        self.request_calls.append((method, url, kwargs))
        return self._response

    async def __aenter__(self):
        return self

    async def __aexit__(self, exc_type, exc, tb):
        return False


def test_deck_base_url_derives_host_from_caldav_url():
    assert main._deck_base_url() == "https://cloud.ffw-onza.de/index.php/apps/deck/api/v1.0"


@pytest.mark.asyncio
async def test_deck_request_returns_parsed_json_on_success():
    fake_session = _FakeSession(_FakeResponse(200, {"id": 5}))

    with patch.object(main.aiohttp, "ClientSession", return_value=fake_session):
        result = await main._deck_request("GET", "/boards")

    assert result == {"id": 5}
    method, url, kwargs = fake_session.request_calls[0]
    assert method == "GET"
    assert url == "https://cloud.ffw-onza.de/index.php/apps/deck/api/v1.0/boards"


@pytest.mark.asyncio
async def test_deck_request_raises_on_error_status():
    fake_session = _FakeSession(_FakeResponse(500, {"message": "boom"}))

    with patch.object(main.aiohttp, "ClientSession", return_value=fake_session):
        with pytest.raises(RuntimeError):
            await main._deck_request("GET", "/boards")