from __future__ import annotations

from pathlib import Path


def test_controller_run_script_expands_shell_vars(monkeypatch, tmp_path: Path):
    """Regression: `run_script` must expand `$HOME`/`$KNOE_HOME` before mkdir/copy.

    Without this, setting `KNOE_HOME=$HOME/knoe` can create a literal `$HOME`
    directory in the current working directory.
    """

    monkeypatch.chdir(tmp_path)

    home_dir = tmp_path / "home"
    home_dir.mkdir(parents=True, exist_ok=True)
    monkeypatch.setenv("HOME", str(home_dir))

    proj = tmp_path / "project_root"
    (proj / "etc").mkdir(parents=True, exist_ok=True)
    (proj / "etc" / "dummy.sh").write_text("#!/usr/bin/env bash\necho ok\n")

    from knoe.core.controller import KnoeController

    controller = KnoeController(project_root=proj)
    rc = controller.run_script("dummy.sh", env={"KNOE_HOME": "$HOME/knoe"})
    assert rc == 0

    assert (home_dir / "knoe" / "etc" / "dummy.sh").is_file()
    assert not (tmp_path / "$HOME").exists()