from __future__ import annotations

import asyncio
import pytest

from teamlandkarte_mcp.matching.task_helpers import (
    TaskHelpersDeprecatedError,
    extract_requirements_from_task,
)


class MissingDB:
    """DB stub that simulates an unavailable database."""

    def get_task_by_id(self, task_id: str):
        raise RuntimeError("db unavailable")

    def get_task_by_name(self, name: str):
        raise RuntimeError("db unavailable")


class NoopAnalyzer:
    async def extract_requirements(self, description: str):  # pragma: no cover
        raise AssertionError("should not be called")


def test_extract_requirements_from_task_is_deprecated() -> None:
    db = MissingDB()
    analyzer = NoopAnalyzer()

    with pytest.raises(TaskHelpersDeprecatedError):
        asyncio.run(
            extract_requirements_from_task(
                db=db,
                analyzer=analyzer,
                task_id="t",
            )
        )