"""Regression tests for startup configuration path resolution."""

import os
import subprocess
import sys
from pathlib import Path

import pytest


POLYGON_ROOT = Path(__file__).resolve().parents[1]
SITE_DIR = POLYGON_ROOT / "site"


@pytest.mark.parametrize("working_dir", [POLYGON_ROOT, SITE_DIR])
def test_loader_finds_stand_yaml_independent_of_working_directory(working_dir):
    """Exercise a fresh import from both documented launch directories.

    A subprocess isolates module-level environment parsing and import-time YAML
    loading, which is the exact behavior used when the WSGI process starts.
    """
    env = os.environ.copy()
    env["POLYGON_STANDS"] = (
        "dev:services/dev,test:services/test,prod:services/prod"
    )
    python_path = str(SITE_DIR)
    if env.get("PYTHONPATH"):
        python_path += os.pathsep + env["PYTHONPATH"]
    env["PYTHONPATH"] = python_path

    subprocess.run(
        [
            sys.executable,
            "-c",
            (
                "import app; "
                "assert set(app._cfg.STANDS) == {'dev', 'test', 'prod'}; "
                "assert app.app.test_client().get('/health').status_code == 200"
            ),
        ],
        cwd=working_dir,
        env=env,
        check=True,
        timeout=10,
    )


def test_loader_finds_default_services_from_repository_root():
    """The no-env default must also work with the platform's root CWD."""
    env = os.environ.copy()
    env.pop("POLYGON_STANDS", None)
    python_path = str(SITE_DIR)
    if env.get("PYTHONPATH"):
        python_path += os.pathsep + env["PYTHONPATH"]
    env["PYTHONPATH"] = python_path

    subprocess.run(
        [
            sys.executable,
            "-c",
            (
                "import app; "
                "assert set(app._cfg.STANDS) == {'default'}; "
                "assert app.app.test_client().get('/health').status_code == 200"
            ),
        ],
        cwd=POLYGON_ROOT,
        env=env,
        check=True,
        timeout=10,
    )