import pytest
import typer

from pyxray.cli.runtime import request_cancel, run_download_items
from pyxray.config import CoreConfig
from pyxray.libs.paths import WorkdirPaths
from pyxray.xray.downloader import DownloadManager
from pyxray.xray.manager import XrayManager


def make_manager(tmp_path) -> XrayManager:
    return XrayManager(CoreConfig(), WorkdirPaths.from_value(tmp_path))


def test_request_cancel_writes_cancel_file(tmp_path) -> None:
    manager = make_manager(tmp_path)

    request_cancel(manager, emit=lambda message: None)

    assert manager.paths.download_cancel_file.exists()


def test_run_download_items_rejects_existing_lock(tmp_path) -> None:
    manager = make_manager(tmp_path)
    manager.paths.ensure()
    manager.paths.download_lock_file.write_text("locked", encoding="utf-8")

    with pytest.raises(typer.Exit) as exc:
        run_download_items(manager, [], force=False, proxy=None, emit=lambda *args, **kwargs: None)

    assert exc.value.exit_code == 1


def test_xray_manager_reuses_download_manager_for_workdir(tmp_path) -> None:
    first = make_manager(tmp_path)
    second = make_manager(tmp_path)

    assert isinstance(first.downloads, DownloadManager)
    assert first.downloads is second.downloads