"""Unit tests: app factory edge cases (no live DB needed)."""
from __future__ import annotations

from fastapi.testclient import TestClient

import app.main as main_mod


def test_create_app_warns_and_serves_api_only_without_static_dir(
    monkeypatch, tmp_path
) -> None:
    """If the frontend directory is missing, the API still boots (PLAN §7)."""
    monkeypatch.setattr(
        main_mod.settings, "static_dir", str(tmp_path / "definitely-missing")
    )
    app2 = main_mod.create_app()
    client = TestClient(app2)
    # /api still works…
    assert client.get("/api/health").status_code == 200
    # …but the static mount is absent (no index page).
    assert client.get("/").status_code == 404


def test_create_app_wires_caching_middleware() -> None:
    """Phase 33: the app factory always attaches the cache-busting
    middleware (by name) — even when the static dir is missing, so the
    /api/* no-touch guarantee holds in every environment."""
    app2 = main_mod.create_app()
    # ``mw.cls`` is starlette's opaque ``_MiddlewareFactory`` protocol —
    # reach for ``__name__`` the same way starlette's own __repr__ does.
    middleware_names = [getattr(mw.cls, "__name__", "") for mw in app2.user_middleware]
    assert "CachingMiddleware" in middleware_names