import importlib.util
import os


def load_app_module():
    repo_root = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
    app_path = os.path.join(repo_root, "app.py")
    spec = importlib.util.spec_from_file_location("app", app_path)
    mod = importlib.util.module_from_spec(spec)
    spec.loader.exec_module(mod)
    return mod


def _iter_routes(app):
    for r in getattr(app, "routes", []):
        path = getattr(r, "path", None)
        methods = getattr(r, "methods", None)
        if not path or not methods:
            continue
        for m in methods:
            if m in ("HEAD", "OPTIONS"):
                continue
            yield (m, path)


def test_contract_routes_exist_and_match_locked_baseline():
    app_mod = load_app_module()
    routes = set(_iter_routes(app_mod.app))

    # Endpoint count exact (locked baseline)
    assert len(routes) == 30

    expected = {
        # FastAPI built-ins (default)
        ("GET", "/openapi.json"),
        ("GET", "/docs"),
        ("GET", "/docs/oauth2-redirect"),
        ("GET", "/redoc"),

        # App routes
        ("GET", "/workloads"),
        ("GET", "/workloads/read/{filename:path}"),
        ("POST", "/workloads/save-file"),
        ("POST", "/workloads/deploy/{filename:path}"),
        ("GET", "/files/tree"),
        ("GET", "/files/read"),
        ("POST", "/files/save"),
        ("DELETE", "/files/delete"),
        ("POST", "/files/mkdir"),
        ("DELETE", "/files/rmdir"),
        ("GET", "/pods"),
        ("POST", "/actions/{action}/{name}"),
        ("GET", "/pods-dashboard"),
        ("POST", "/pods/actions/{action}/{podname}"),
        ("GET", "/containers-dashboard"),
        ("GET", "/containers"),
        ("POST", "/containers/{action}/{name}"),
        ("GET", "/debug/defined-containers"),
        ("GET", "/dashboard"),
        ("GET", "/test-hybrid"),
        ("GET", "/containers/logs/{name}"),
        ("GET", "/containers/inspect/{name}"),
        ("GET", "/systemd/allowlist"),
        ("POST", "/daemon-reload"),
        ("POST", "/{action}/{unit}"),
        ("POST", "/api/<action>/<unit>"),
    }

    assert routes == expected