from __future__ import annotations

from pathlib import Path


def test_actions_save_env_to_file_expands_shell_vars(monkeypatch, tmp_path: Path):
    """Regression: core env setup must expand `$HOME`/`$KNOE_HOME` for filesystem ops.

    This complements the Environment UI regression test by covering the
    non-UI installer/actions code paths that can run during status checks.
    """

    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" / "init-port-forward.sh").write_text(
        "#!/usr/bin/env bash\necho ok\n"
    )
    (proj / "etc" / "dummy.txt").write_text("ok\n")

    from knoe.core.actions import KnoeInstaller

    class Dummy(KnoeInstaller):
        def __init__(self, project_root: Path):
            self.project_root = project_root
            self.inputs = {"init_cluster.cluster_env": "dev"}
            self._init_shared_state()

        def _get_input(self, key: str, default: str | None = None) -> str:
            if key in self.inputs:
                return self.inputs[key]
            return default if default is not None else ""

    dummy = Dummy(proj)
    values = {
        "KNOE_HOME": "$HOME/knoe",
        "KNOE_CONF": "$KNOE_HOME/conf",
        "PROLE_DATA": "$KNOE_HOME/data",
        "PROLE_LOGS": "$KNOE_HOME/logs",
        "KNOE_SERVICE": "$KNOE_HOME/etc",
    }
    dummy._save_env_to_file(values)

    expected_home = home_dir / "knoe"
    assert expected_home.is_dir()
    assert (expected_home / "conf").is_dir()
    assert (expected_home / "data").is_dir()
    assert (expected_home / "logs").is_dir()
    assert (expected_home / "etc").is_dir()
    assert (expected_home / "env.sh").is_file()
    assert (expected_home / "init-port-forward.sh").is_file()

    # Critical assertions: we must NOT create literal `$HOME`/`$KNOE_HOME` dirs in CWD.
    assert not (tmp_path / "$HOME").exists()
    assert not (tmp_path / "$KNOE_HOME").exists()