from __future__ import annotations

import tempfile
import unittest
from pathlib import Path

from fastapi import status
from fastapi.testclient import TestClient

from app.api.dependencies import get_container
from app.main import create_app
from tests.integration.api.support import FakeProcessRemoteImage, FakeProcessUploadedImage, make_container


class ApiKeyIntegrationTests(unittest.TestCase):
    def test_protected_endpoints_return_401_without_required_api_key(self) -> None:
        with tempfile.TemporaryDirectory() as temp_dir:
            root = Path(temp_dir)
            app = create_app()
            app.dependency_overrides[get_container] = lambda: make_container(
                root,
                process_remote_image=FakeProcessRemoteImage(),
                process_uploaded_image=FakeProcessUploadedImage(),
                api_key="secret-key",
            )
            client = TestClient(app)
            try:
                response = client.get("/defaults")

                self.assertEqual(status.HTTP_401_UNAUTHORIZED, response.status_code)
                self.assertEqual("Invalid or missing API key.", response.json()["detail"])
            finally:
                client.close()
                app.dependency_overrides.clear()

    def test_protected_endpoints_accept_matching_api_key(self) -> None:
        with tempfile.TemporaryDirectory() as temp_dir:
            root = Path(temp_dir)
            app = create_app()
            app.dependency_overrides[get_container] = lambda: make_container(
                root,
                process_remote_image=FakeProcessRemoteImage(),
                process_uploaded_image=FakeProcessUploadedImage(),
                api_key="secret-key",
            )
            client = TestClient(app)
            try:
                response = client.get("/defaults", headers={"X-API-Key": "secret-key"})

                self.assertEqual(status.HTTP_200_OK, response.status_code)
            finally:
                client.close()
                app.dependency_overrides.clear()

    def test_health_is_public_even_when_api_key_is_configured(self) -> None:
        with tempfile.TemporaryDirectory() as temp_dir:
            root = Path(temp_dir)
            app = create_app()
            app.dependency_overrides[get_container] = lambda: make_container(
                root,
                process_remote_image=FakeProcessRemoteImage(),
                process_uploaded_image=FakeProcessUploadedImage(),
                api_key="secret-key",
            )
            client = TestClient(app)
            try:
                response = client.get("/health")

                self.assertEqual(status.HTTP_200_OK, response.status_code)
                self.assertEqual({"status": "ok"}, response.json())
            finally:
                client.close()
                app.dependency_overrides.clear()


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