from concurrent.futures import ThreadPoolExecutor

from app.services import task_service
from app.config import Settings


def test_task_executor_is_single_worker_thread_pool():
    assert isinstance(task_service.task_executor, ThreadPoolExecutor)
    assert task_service.task_executor._max_workers == 1


def test_run_task_entrypoint_is_synchronous_function():
    assert task_service.inspect.iscoroutinefunction(task_service.run_task) is False


def test_ai_dependencies_do_not_generate_report_summary_provider_without_ai_config(monkeypatch):
    monkeypatch.setattr("app.services.task_service.get_settings", lambda: Settings(_env_file=None))

    requester, summary_provider = task_service.build_ai_dependencies()

    assert requester("prompt") == "[]"
    assert summary_provider is None