import importlib
import os
import sys
import tempfile
from pathlib import Path

import pytest

REPO_ROOT = Path(__file__).parent.parent.resolve()
if str(REPO_ROOT) not in sys.path:
    sys.path.insert(0, str(REPO_ROOT))


def _reload_profiles_module(base_home: Path):
    os.environ["HERMES_BASE_HOME"] = str(base_home)
    os.environ["HERMES_HOME"] = str(base_home)

    # Save the original module references so we can restore them after the test.
    # Permanently deleting api.config / api.profiles from sys.modules breaks
    # subsequent tests that import these modules and expect consistent state.
    _saved = {name: sys.modules[name] for name in ["api.config", "api.profiles"]
              if name in sys.modules}

    for name in ["api.config", "api.profiles"]:
        if name in sys.modules:
            del sys.modules[name]

    profiles = importlib.import_module("api.profiles")

    # Restore original modules so the cache stays consistent for the rest of the suite.
    sys.modules.update(_saved)

    return profiles


def test_switch_profile_rejects_path_traversal():
    with tempfile.TemporaryDirectory() as td:
        temp_root = Path(td)
        base = temp_root / ".hermes"
        (base / "profiles").mkdir(parents=True)
        (temp_root / "escape-target").mkdir()

        profiles = _reload_profiles_module(base)

        with pytest.raises(ValueError):
            profiles.switch_profile("../../escape-target")


def test_delete_profile_rejects_path_traversal():
    with tempfile.TemporaryDirectory() as td:
        temp_root = Path(td)
        base = temp_root / ".hermes"
        (base / "profiles").mkdir(parents=True)
        (temp_root / "escape-target").mkdir()

        profiles = _reload_profiles_module(base)

        with pytest.raises(ValueError):
            profiles.delete_profile_api("../../escape-target")


def test_switch_profile_allows_valid_profile_name():
    with tempfile.TemporaryDirectory() as td:
        temp_root = Path(td)
        base = temp_root / ".hermes"
        profile_dir = base / "profiles" / "demo"
        profile_dir.mkdir(parents=True)

        profiles = _reload_profiles_module(base)
        result = profiles.switch_profile("demo")

        assert result["active"] == "demo"
        assert Path(os.environ["HERMES_HOME"]).resolve() == profile_dir.resolve()