"""Controller 路由契约测试：鉴权闸门与路由注册。

两类断言：
1. **受保护路由在缺少 `Authorization` 时不得成功**——GET 必须明确 401；POST 因为 FastAPI
   先校验请求体，无 body 时会得到 422，因此断言"不是 2xx 且是 401/422 之一"，重点是
   **未授权不能拿到成功响应**，而不是具体哪一个码。
2. 公开运维路由可达、未注册路径返回 404——防止路由注册被改错却无人发现。

全部用 `httpx.ASGITransport` 进程内调用，不连数据库（鉴权在依赖层就返回）。
"""

from typing import Any

import httpx
import pytest

from app.main import create_app

PROTECTED_GET = [
    "/api/v1/agent-runs/run-x",
    "/api/v1/agent-runs/run-x/events",
    "/api/v1/conversations/session-1",
    "/api/v1/conversations/session-1/messages",
    "/api/v1/handover-requests/1",
    "/api/v1/knowledge-references/token-abcdefghijklmnopqrst",
    "/api/v1/users/me/memory-profile",
    "/api/v1/admin/config-releases",
    "/api/v1/knowledge/list",
]

PROTECTED_POST = [
    "/api/v1/agent-runs",
    "/api/v1/conversations",
    "/api/v1/conversations/session-1/closures",
    "/api/v1/conversations/session-1/handover-requests",
    "/api/v1/agent-runs/run-x/cancellations",
    "/api/v1/conversation-messages/1/feedback",
    "/api/v1/knowledge/upload",
]

PROTECTED_DELETE = [
    "/api/v1/knowledge/1",
]

PUBLIC_GET = ["/internal/health/live"]


async def send(method: str, path: str) -> httpx.Response:
    app = create_app()
    transport = httpx.ASGITransport(app=app)
    async with httpx.AsyncClient(transport=transport, base_url="http://test") as client:
        return await client.request(method, path)


@pytest.mark.parametrize("path", PROTECTED_GET)
async def test_protected_get_without_token_is_unauthorized(path: str) -> None:
    response = await send("GET", path)

    assert response.status_code == 401, f"GET {path} -> {response.status_code}"


@pytest.mark.parametrize("path", PROTECTED_POST)
async def test_protected_post_without_token_never_succeeds(path: str) -> None:
    response = await send("POST", path)

    assert response.status_code in {401, 422}, f"POST {path} -> {response.status_code}"


@pytest.mark.parametrize("path", PROTECTED_DELETE)
async def test_protected_delete_without_token_is_unauthorized(path: str) -> None:
    """DELETE 没有请求体可校，所以未带令牌必须是明确的 401（知识库删除端点的闸门）。"""
    response = await send("DELETE", path)

    assert response.status_code == 401, f"DELETE {path} -> {response.status_code}"


@pytest.mark.parametrize("path", PUBLIC_GET)
async def test_public_operational_route_is_reachable(path: str) -> None:
    response = await send("GET", path)

    assert response.status_code == 200, f"GET {path} -> {response.status_code}"


async def test_unknown_path_is_not_found() -> None:
    response = await send("GET", "/api/v1/definitely-not-a-route")

    assert response.status_code == 404


async def test_unauthorized_envelope_shape() -> None:
    """401 的错误信封必须与文档一致，否则客户端无法统一处理。"""
    response = await send("GET", "/api/v1/agent-runs/run-x")

    body: Any = response.json()
    assert "detail" in body or "error" in body