"""R3: KODEX200 봉수 부족 시 변동비 공식 폴백 대신 갱신 실패(staleness 경로)."""
import pytest
import app.services.adaptive_strategy as ad


def _rows(n):
    return [{"stck_clpr": "100", "stck_hgpr": "101", "stck_lwpr": "99", "acml_vol": "1"} for _ in range(n)]


@pytest.fixture(autouse=True)
def _isolate(monkeypatch):
    async def _no(*a, **k):
        raise AssertionError("must not run")
    monkeypatch.setattr(ad, "_save_to_redis", _no)
    monkeypatch.setattr(ad, "_save_data_source_v2", _no)
    monkeypatch.setattr(ad, "_current_params", None)


@pytest.mark.asyncio
async def test_short_history_is_failure(monkeypatch):
    async def short(): return _rows(30), "kis_range"
    monkeypatch.setattr(ad, "_fetch_kodex_chart_v2", short)
    called = []
    monkeypatch.setattr(ad, "enforce_staleness_v2", lambda: called.append(1) or None)
    def _boom(*a, **k): raise AssertionError("analyze must not run")
    monkeypatch.setattr(ad, "analyze_market_condition", _boom)
    before = ad._last_success_ts
    await ad.refresh_adaptive_params()
    assert called == [1] and ad._last_success_ts == before


@pytest.mark.asyncio
async def test_fetch_falls_through_to_kis_range(monkeypatch):
    import app.services.naver_finance as nf
    import app.services.korea_investment_api as k
    async def naver(*a, **kw): return _rows(70)
    monkeypatch.setattr(nf, "get_naver_daily_chart", naver)
    class Api:
        async def get_daily_ohlcv_range(self, *a): return _rows(ad._MIN_BARS_FOR_ATR_PCT + 5)
    monkeypatch.setattr(k, "real_market_api", Api())
    data, src = await ad._fetch_kodex_chart_v2()
    assert src == "kis_range" and len(data) == ad._MIN_BARS_FOR_ATR_PCT + 5


@pytest.mark.asyncio
async def test_fetch_naver_sufficient_skips_kis(monkeypatch):
    import app.services.naver_finance as nf
    import app.services.korea_investment_api as k
    async def naver(*a, **kw): return _rows(200)
    monkeypatch.setattr(nf, "get_naver_daily_chart", naver)
    class Api:
        async def get_daily_ohlcv_range(self, *a): raise AssertionError("no kis")
    monkeypatch.setattr(k, "real_market_api", Api())
    data, src = await ad._fetch_kodex_chart_v2()
    assert src == "naver" and len(data) == 200