"""A Google account without a YouTube channel: its `mine` playlists read answers 404
`channelNotFound`. That is an empty list, not a failed sync — it came back as a warning every six
hours on prod for an account that will never have a channel."""

import logging

import httpx
import pytest

from app.youtube import client as yt


def _client(monkeypatch, status: int, reason: str) -> yt.YouTubeClient:
    resp = httpx.Response(
        status,
        json={"error": {"code": status, "errors": [{"reason": reason, "message": "prose"}]}},
        request=httpx.Request("GET", f"{yt.API_BASE}/playlists"),
    )
    c = yt.YouTubeClient.__new__(yt.YouTubeClient)  # no HTTP client: `_send` is the stub
    c.db = None
    monkeypatch.setattr(yt.sysconfig, "get_str", lambda db, key: "")
    monkeypatch.setattr(yt.quota, "record_usage", lambda cost: None)
    monkeypatch.setattr(c, "_access_token", lambda: "t")
    monkeypatch.setattr(c, "_send", lambda *a, **k: resp)
    return c


def test_no_channel_is_an_empty_playlist_list_and_no_warning(monkeypatch, caplog):
    caplog.set_level(logging.DEBUG, logger="siftlode")
    assert list(_client(monkeypatch, 404, "channelNotFound").iter_my_playlists()) == []
    assert not [r for r in caplog.records if r.levelno >= logging.WARNING]


def test_any_other_failure_still_raises_and_warns(monkeypatch, caplog):
    caplog.set_level(logging.DEBUG, logger="siftlode")
    with pytest.raises(yt.YouTubeError):
        list(_client(monkeypatch, 403, "quotaExceeded").iter_my_playlists())
    assert [r for r in caplog.records if r.levelno == logging.WARNING]