"""The Test button: it exists to tell a working channel from a broken one."""

from typing import Any

import pytest
from fastapi.testclient import TestClient

from app.core.config import settings
from app.flow.alerts import AlertsConfig, Channel

PREFIX = f"{settings.API_V1_STR}/alerts"


def _one_channel(client: TestClient) -> Any:
    alerts = client.app.state.flow_controller.alerts  # type: ignore[attr-defined]
    alerts.config = AlertsConfig(
        channels=[Channel(name="phone", kind="ntfy", config={"topic": "t"})]
    )
    return alerts


def test_a_channel_that_cannot_deliver_is_not_a_success(
    client: TestClient,
    superuser_token_headers: dict[str, str],
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    alerts = _one_channel(client)

    async def refuse(_config: dict[str, Any], _alert: Any) -> None:
        raise RuntimeError("nobody home")

    monkeypatch.setattr(alerts, "_send_ntfy", refuse)

    response = client.post(f"{PREFIX}/test/phone", headers=superuser_token_headers)

    assert response.status_code == 502
    assert "nobody home" in response.json()["detail"]


def test_a_channel_that_delivers_says_so(
    client: TestClient,
    superuser_token_headers: dict[str, str],
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    alerts = _one_channel(client)
    sent = []

    async def accept(_config: dict[str, Any], alert: Any) -> None:
        sent.append(alert)

    monkeypatch.setattr(alerts, "_send_ntfy", accept)

    response = client.post(f"{PREFIX}/test/phone", headers=superuser_token_headers)

    assert response.status_code == 200
    assert len(sent) == 1


def test_an_unknown_channel_is_a_404(
    client: TestClient, superuser_token_headers: dict[str, str]
) -> None:
    _one_channel(client)

    response = client.post(f"{PREFIX}/test/nowhere", headers=superuser_token_headers)

    assert response.status_code == 404