"""Regression tests for self-contained API documentation pages."""

from __future__ import annotations

from types import SimpleNamespace

import pytest
from fastapi.testclient import TestClient

from app.gateway import config as gateway_config
from app.gateway.app import create_app


def test_config_yaml_docs_switch_overrides_stale_legacy_environment(
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    monkeypatch.setenv("GATEWAY_ENABLE_DOCS", "false")
    monkeypatch.setattr(gateway_config, "_gateway_config", None)
    monkeypatch.setattr(
        gateway_config,
        "get_app_config",
        lambda: SimpleNamespace(gateway=SimpleNamespace(enable_docs=True)),
    )

    assert gateway_config.get_gateway_config().enable_docs is True


def test_docs_and_redoc_use_vendored_assets_behind_proxy_prefix(
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    """Docs must not need internet access and must retain a reverse-proxy prefix."""
    monkeypatch.setenv("GATEWAY_ENABLE_DOCS", "true")
    monkeypatch.setattr(gateway_config, "_gateway_config", None)
    app = create_app()

    with TestClient(app, root_path="/deerflow") as client:
        swagger = client.get("/deerflow/docs")
        redoc = client.get("/deerflow/redoc")
        swagger_bundle = client.get("/deerflow/docs/static/swagger-ui-bundle.js")
        redoc_bundle = client.get("/deerflow/docs/static/redoc.standalone.js")
        openapi = client.get("/deerflow/openapi.json")

    assert swagger.status_code == 200
    assert "./docs/static/swagger-ui-bundle.js" in swagger.text
    assert "./docs/static/swagger-ui.css" in swagger.text
    assert "url: './openapi.json'" in swagger.text
    assert "https://" not in swagger.text

    assert redoc.status_code == 200
    assert "./docs/static/redoc.standalone.js" in redoc.text
    assert "./openapi.json" in redoc.text
    assert "https://" not in redoc.text

    assert swagger_bundle.status_code == 200
    assert swagger_bundle.headers["content-type"].startswith("text/javascript")
    assert redoc_bundle.status_code == 200
    assert redoc_bundle.headers["content-type"].startswith("text/javascript")
    assert openapi.status_code == 200