import asyncio

import httpx
import pytest

from src import gitea_proxy, main


@pytest.mark.anyio
async def test_mark_notification_read_calls_supported_gitea_thread_endpoint(monkeypatch):
    calls = []

    class Response:
        def raise_for_status(self):
            return None

    class Client:
        async def patch(self, path, headers):
            calls.append((path, headers))
            return Response()

    monkeypatch.setattr(gitea_proxy, "_get_client", lambda: Client())
    monkeypatch.setattr(gitea_proxy, "_auth", lambda: {"Authorization": "token test"})

    await gitea_proxy.mark_notification_read(42)

    assert calls == [
        ("/api/v1/notifications/threads/42?to-status=read", {"Authorization": "token test"})
    ]


@pytest.mark.anyio
async def test_mark_notification_read_api_is_bounded_and_never_cacheable(monkeypatch):
    marked = []

    async def mark(thread_id):
        marked.append(thread_id)

    monkeypatch.setattr(main, "mark_notification_read", mark)
    transport = httpx.ASGITransport(app=main.app)
    async with httpx.AsyncClient(transport=transport, base_url="http://test") as client:
        response = await client.patch("/api/v1/notifications/42/read")
        invalid = await client.patch("/api/v1/notifications/0/read")

    assert response.status_code == 200
    assert response.json() == {"id": 42, "status": "read"}
    assert response.headers["cache-control"] == "no-store"
    assert invalid.status_code == 422
    assert marked == [42]


@pytest.mark.anyio
async def test_mark_notification_read_removes_thread_from_retained_live_snapshot(monkeypatch):
    async def mark(_thread_id):
        return None

    monkeypatch.setattr(main, "mark_notification_read", mark)
    monkeypatch.setattr(
        main,
        "_live_snapshot_value",
        {
            "context": {},
            "events": [],
            "notifications": [{"id": 42}, {"id": 43}],
            "sections": {"notifications": "fresh"},
        },
    )

    response = await main.read_notification(42)

    assert response.status_code == 200
    assert main._live_snapshot_value is not None
    assert main._live_snapshot_value["notifications"] == [{"id": 43}]


@pytest.mark.anyio
async def test_inflight_refresh_cannot_restore_a_notification_marked_read(monkeypatch):
    refresh_started = asyncio.Event()
    release_refresh = asyncio.Event()

    async def mark(_thread_id):
        return None

    async def stale_upstream_snapshot():
        refresh_started.set()
        await release_refresh.wait()
        return {
            "context": {},
            "events": [],
            "notifications": [{"id": 42}, {"id": 43}],
            "sections": {"notifications": "fresh"},
        }

    monkeypatch.setattr(main, "mark_notification_read", mark)
    monkeypatch.setattr(
        main, "_build_live_snapshot_before_deadline", stale_upstream_snapshot
    )
    monkeypatch.setattr(main, "_live_snapshot_task", None)
    monkeypatch.setattr(main, "_live_snapshot_value", {"notifications": [{"id": 42}]})

    refresh = main._start_live_snapshot_refresh()
    await refresh_started.wait()
    await main.read_notification(42)
    release_refresh.set()
    await refresh

    assert main._live_snapshot_value is not None
    assert main._live_snapshot_value["notifications"] == [{"id": 43}]