from __future__ import annotations

import asyncio
import sys
import tempfile
import unittest
from pathlib import Path

import httpx

sys.path.insert(0, str(Path(__file__).resolve().parents[3]))

from backend.app.dependencies import get_settings_service
from backend.app.db.settings_repository import SettingsRepository
from backend.app.main import app
from backend.app.services.settings_service import SettingsService


class SettingsApiGoldenTest(unittest.TestCase):
    def setUp(self) -> None:
        self.temp_dir = tempfile.TemporaryDirectory()
        repository = SettingsRepository(str(Path(self.temp_dir.name) / "tasks.db"))
        service = SettingsService(repository=repository)

        async def _override_settings_service() -> SettingsService:
            return service

        app.dependency_overrides[get_settings_service] = _override_settings_service

    def tearDown(self) -> None:
        app.dependency_overrides.clear()
        self.temp_dir.cleanup()

    def _request(self, method: str, url: str, payload: dict | None = None) -> httpx.Response:
        async def _run() -> httpx.Response:
            transport = httpx.ASGITransport(app=app)
            async with httpx.AsyncClient(transport=transport, base_url="http://testserver") as client:
                if method == "GET":
                    return await client.get(url)
                return await client.post(url, json=payload)

        return asyncio.run(_run())

    def test_settings_default_response(self) -> None:
        response = self._request("GET", "/api/settings")

        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json(), {"show_thumbnails": False})

    def test_settings_update_persistence(self) -> None:
        response = self._request("POST", "/api/settings", {"show_thumbnails": True})

        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json(), {"show_thumbnails": True})
        self.assertEqual(self._request("GET", "/api/settings").json(), {"show_thumbnails": True})


if __name__ == "__main__":
    unittest.main()