import asyncio
from collections.abc import Awaitable, Callable

import httpx


async def create(client: httpx.AsyncClient, name: str = "site") -> httpx.Response:
    return await client.post(
        "/monitors", json={"name": name, "url": "https://example.com/path?secret=value"}
    )


async def test_crud_and_error_semantics(client: httpx.AsyncClient) -> None:
    response = await create(client)
    assert response.status_code == 201
    monitor = response.json()
    assert monitor["current_status"]["state"] == "never_checked"

    response = await client.patch(
        f"/monitors/{monitor['id']}", json={"name": "renamed", "expected_status": 204}
    )
    assert response.status_code == 200
    assert response.json()["name"] == "renamed"
    assert response.json()["expected_status"] == 204

    assert len((await client.get("/monitors")).json()) == 1
    assert (await client.delete(f"/monitors/{monitor['id']}")).status_code == 204
    response = await client.get(f"/monitors/{monitor['id']}")
    assert response.status_code == 404
    assert response.json() == {"error": {"code": "not_found", "message": "monitor not found"}}


async def test_typed_validation_is_redacted(client: httpx.AsyncClient) -> None:
    response = await client.post(
        "/monitors", json={"name": "", "url": "not a URL", "expected_status": 99}
    )
    assert response.status_code == 422
    assert response.json()["error"]["code"] == "invalid_request"
    assert "not a URL" not in response.text


async def test_store_survives_concurrent_api_writes(client: httpx.AsyncClient) -> None:
    responses = await asyncio.gather(*(create(client, f"site-{n}") for n in range(100)))
    ids = {response.json()["id"] for response in responses}
    assert len(ids) == 100
    listed = (await client.get("/monitors")).json()
    assert {item["id"] for item in listed} == ids


async def test_check_updates_current_status(client: httpx.AsyncClient) -> None:
    monitor = (await create(client)).json()
    checked = await client.post(f"/monitors/{monitor['id']}/check")
    assert checked.status_code == 200
    assert checked.json()["state"] == "up"
    status = await client.get(f"/monitors/{monitor['id']}/status")
    assert status.json() == checked.json()


async def test_operational_routes(client: httpx.AsyncClient) -> None:
    assert (await client.get("/health/live")).json() == {"status": "ok"}
    assert (await client.get("/health/ready")).json()["storage"] == "process-local-memory"


async def test_redirect_is_revalidated(
    client_factory: Callable[[httpx.AsyncBaseTransport], Awaitable[httpx.AsyncClient]],
) -> None:
    async def handler(request: httpx.Request) -> httpx.Response:
        if request.url.host == "example.com":
            return httpx.Response(302, headers={"location": "http://127.0.0.1/admin"})
        raise AssertionError("blocked redirect must not reach transport")

    client = await client_factory(httpx.MockTransport(handler))
    async with client:
        monitor = (await create(client)).json()
        result = await client.post(f"/monitors/{monitor['id']}/check")
    assert result.json()["state"] == "blocked"
    assert result.json()["observed_status"] == 302