"""스윙 청산 RSI 워밍업 (하드닝 R4 2026-10-09) — swing/exit_service 회귀 테스트.

[MEDIUM] 청산 RSI 가 KIS 30봉 일봉으로 계산돼 Wilder RSI(14) 시드 영향이 남았다(운영 실측
RSI≥55 판정 불일치 6.9%). 이제 장기 이력(네이버 → KIS 기간 조회)을 하루 1회 캐시하고 KIS 30봉과
날짜로 병합해 RSI 를 계산한다. 실패·불일치·대기 초과면 기존 30봉 RSI 로 폴백한다.

규약(CLAUDE.md §4.1): 외부 조회 목은 예외 발생형 또는 명시적 반환, 주문 목은 공통 종단.
"""
import asyncio
from datetime import timedelta
from types import SimpleNamespace
from unittest.mock import AsyncMock, MagicMock

import pytest

import app.services.mean_reversion_strategy as mr
from app.services.mean_reversion_strategy import ExitSignal, calculate_rsi


@pytest.fixture(autouse=True)
def _reset(monkeypatch):
    import app.services.swing.exit_service as es
    for name in ("_pending_unknown_sells", "_last_live_prices", "_last_atr",
                 "_presell_check_failures", "_no_price_skips", "_recent_exits",
                 "_swing_exit_error_counts", "_swing_sell_reject_counts", "_swing_sell_reject_last",
                 "_exit_history_cache", "_exit_history_tasks"):
        monkeypatch.setattr(es, name, {})
    monkeypatch.setattr(es, "_exit_rsi_source_counts", {"merged": 0, "kis30": 0})
    from app.core import log_throttle
    log_throttle.reset_for_tests()
    # 실수로 외부 조회가 일어나면 즉시 실패(예외 발생형). 개별 테스트가 필요 시 덮는다.
    import app.services.naver_finance as nf
    monkeypatch.setattr(nf, "get_naver_daily_chart",
                        AsyncMock(side_effect=AssertionError("네이버 실호출 금지")))
    return es


def _dates(n, end=None):
    from app.core.timeutil import today_kst
    end = end or today_kst()
    out, d = [], end
    while len(out) < n:
        if d.weekday() < 5:
            out.append(d.strftime("%Y%m%d"))
        d -= timedelta(days=1)
    return list(reversed(out))


def _series(n):
    # 결정적 등락 — 30봉 RSI 와 전체 이력 RSI 가 확실히 갈리도록 앞쪽에 강한 추세를 둔다.
    closes, p = [], 10000.0
    for i in range(n):
        p += (120 if i < n - 40 else 0) + (((i * 37) % 11) - 5) * 30
        closes.append(round(p, 0))
    return closes


def _bars(dates, closes):
    return [{"stck_bsop_date": d, "stck_clpr": str(c), "stck_hgpr": str(c + 100),
             "stck_lwpr": str(c - 100)} for d, c in zip(dates, closes)]


def _fixture_bars(n_hist=130, n_recent=30):
    dates = _dates(n_hist)
    closes = _series(n_hist)
    history = _bars(dates[:-1], closes[:-1])          # 이력은 어제까지
    recent = _bars(dates[-n_recent:], closes[-n_recent:])  # KIS 30봉 (오늘 포함)
    return history, recent, closes


# ═══════════════════════════════════════════════════════════════════════════
# 병합 순수 로직
# ═══════════════════════════════════════════════════════════════════════════

def test_merge_gives_full_history_rsi(_reset):
    es = _reset
    history, recent, closes = _fixture_bars()
    merged = es._merge_exit_bars_v2(history, recent)
    assert merged is not None and len(merged) == len(closes)
    rsi_full = calculate_rsi([float(b["stck_clpr"]) for b in merged])
    assert rsi_full == pytest.approx(calculate_rsi(closes))
    # 결함 재현: 30봉 RSI 는 전체 이력 RSI 와 다르다
    assert abs(calculate_rsi(closes[-30:]) - rsi_full) > 0.5


def test_merge_today_bar_comes_from_recent_even_if_history_differs(_reset):
    es = _reset
    history, recent, closes = _fixture_bars()
    # 이력에 오늘 봉이 섞여 있고 값이 다르다(장중 진행) → 최근 봉이 이기고 검증 대상에서 제외
    today = recent[-1]["stck_bsop_date"]
    history = history + [{"stck_bsop_date": today, "stck_clpr": str(closes[-1] * 1.05)}]
    merged = es._merge_exit_bars_v2(history, recent)
    assert merged is not None and merged[-1] is recent[-1]


def test_merge_rejects_close_mismatch(_reset):
    es = _reset
    history, recent, _ = _fixture_bars()
    # 겹치는 확정 봉 하나의 종가가 허용 오차를 넘게 다르다(수정주가 차이 등)
    bad = dict(recent[5])
    tol = es._EXIT_HISTORY_CLOSE_TOL
    bad["stck_clpr"] = str(float(bad["stck_clpr"]) * (1 + tol * 3))
    recent = recent[:5] + [bad] + recent[6:]
    assert es._merge_exit_bars_v2(history, recent) is None


def test_merge_rejects_no_overlap_or_no_older(_reset):
    es = _reset
    history, recent, _ = _fixture_bars()
    # 겹침 없음(이력이 최근 봉 시작 이전에서 끊김)
    first = recent[0]["stck_bsop_date"]
    gap_hist = [b for b in history if b["stck_bsop_date"] < first]
    assert es._merge_exit_bars_v2(gap_hist, recent) is None
    # 더 이른 봉이 없음(이득 없음)
    only_overlap = [b for b in history if b["stck_bsop_date"] >= first]
    assert es._merge_exit_bars_v2(only_overlap, recent) is None
    assert es._merge_exit_bars_v2(None, recent) is None


# ═══════════════════════════════════════════════════════════════════════════
# _exit_rsi_v2 — 조회·캐시·폴백
# ═══════════════════════════════════════════════════════════════════════════

@pytest.mark.asyncio
async def test_exit_rsi_uses_history_and_caches_daily(monkeypatch, _reset):
    es = _reset
    history, recent, closes = _fixture_bars()
    fetch = AsyncMock(return_value=(history, "naver"))
    monkeypatch.setattr(es, "_fetch_exit_history_bars_v2", fetch)
    c30 = [float(b["stck_clpr"]) for b in recent]
    r1 = await es._exit_rsi_v2("005930", recent, c30)
    r2 = await es._exit_rsi_v2("005930", recent, c30)
    assert r1 == pytest.approx(calculate_rsi(closes)) and r2 == r1
    assert fetch.await_count == 1  # 하루 1회
    assert es._exit_rsi_source_counts["merged"] == 2


@pytest.mark.asyncio
async def test_exit_rsi_falls_back_when_sources_raise(monkeypatch, _reset):
    """네이버·KIS 기간 조회가 모두 예외 → 30봉 RSI, 실패는 재시도 간격 동안 캐시."""
    es = _reset
    import app.services.naver_finance as nf
    naver = AsyncMock(side_effect=RuntimeError("naver down"))
    monkeypatch.setattr(nf, "get_naver_daily_chart", naver)
    api = MagicMock()
    api._quote_delegate = lambda: None
    api.get_daily_ohlcv_range = AsyncMock(side_effect=RuntimeError("kis down"))
    monkeypatch.setattr(es, "korea_investment_api", api)
    _, recent, _ = _fixture_bars()
    c30 = [float(b["stck_clpr"]) for b in recent]
    r = await es._exit_rsi_v2("005930", recent, c30)
    assert r == pytest.approx(calculate_rsi(c30))
    r = await es._exit_rsi_v2("005930", recent, c30)
    assert naver.await_count == 1 and api.get_daily_ohlcv_range.await_count == 1
    assert es._exit_rsi_source_counts["kis30"] == 2


@pytest.mark.asyncio
async def test_exit_rsi_kis_range_used_when_naver_fails(monkeypatch, _reset):
    es = _reset
    import app.services.naver_finance as nf
    monkeypatch.setattr(nf, "get_naver_daily_chart", AsyncMock(side_effect=RuntimeError("x")))
    history, recent, closes = _fixture_bars()
    api = MagicMock()
    api._quote_delegate = lambda: None
    api.get_daily_ohlcv_range = AsyncMock(return_value=list(reversed(history)))  # KIS 는 최신→과거
    monkeypatch.setattr(es, "korea_investment_api", api)
    c30 = [float(b["stck_clpr"]) for b in recent]
    r = await es._exit_rsi_v2("005930", recent, c30)
    assert r == pytest.approx(calculate_rsi(closes))


@pytest.mark.asyncio
async def test_exit_rsi_slow_fetch_does_not_block_cycle(monkeypatch, _reset):
    """조회가 대기 상한을 넘기면 이번 사이클은 30봉 RSI, 완료 후 다음 사이클에 병합 RSI."""
    es = _reset
    history, recent, closes = _fixture_bars()
    gate = asyncio.Event()

    async def _slow(code):
        await gate.wait()
        return history, "naver"
    monkeypatch.setattr(es, "_fetch_exit_history_bars_v2", _slow)
    monkeypatch.setattr(es, "EXIT_HISTORY_WAIT_SEC", 0.01)
    c30 = [float(b["stck_clpr"]) for b in recent]
    r1 = await es._exit_rsi_v2("005930", recent, c30)
    assert r1 == pytest.approx(calculate_rsi(c30))
    gate.set()
    await asyncio.sleep(0)
    for _ in range(5):
        if not es._exit_history_tasks:
            break
        await asyncio.sleep(0.01)
    r2 = await es._exit_rsi_v2("005930", recent, c30)
    assert r2 == pytest.approx(calculate_rsi(closes))


@pytest.mark.asyncio
async def test_exit_rsi_undated_bars_skip_fetch(monkeypatch, _reset):
    es = _reset
    fetch = AsyncMock(side_effect=AssertionError("날짜 없는 봉에서 이력 조회 금지"))
    monkeypatch.setattr(es, "_fetch_exit_history_bars_v2", fetch)
    recent = [{"stck_clpr": str(10000 + i * 10)} for i in range(30)]
    c30 = [float(b["stck_clpr"]) for b in recent]
    r = await es._exit_rsi_v2("005930", recent, c30)
    assert r == pytest.approx(calculate_rsi(c30))
    assert fetch.await_count == 0


# ═══════════════════════════════════════════════════════════════════════════
# 청산 루프 통합 — check_exit_signal 에 전달되는 RSI, 손절 우선
# ═══════════════════════════════════════════════════════════════════════════

def _loop_env(monkeypatch, es, recent, captured, signal=None):
    import app.services.trade_executor as te
    import app.services.db_worker as dbw
    import app.services.portfolio_cache_bridge as pcb
    import app.services.adaptive_strategy as ad
    from app.core.timeutil import now_kst
    from app.services.daytrading.position_manager import day_trading_state

    price = float(recent[-1]["stck_clpr"])
    monkeypatch.setattr(ad, "get_current_adaptive_params", lambda: SimpleNamespace(fallback_used=True))
    monkeypatch.setattr(mr.strategy_cfg, "get", lambda k, d=None: None)
    monkeypatch.setattr(te, "_delayed_sync_portfolio", AsyncMock())
    holding = SimpleNamespace(stock_code="005930", stock_name="T", quantity=10,
                              average_price=price, current_price=price, market="KRX",
                              updated_at=now_kst())
    monkeypatch.setattr(es, "get_swing_holdings", AsyncMock(return_value=[holding]))
    monkeypatch.setattr(es, "check_market_regime", AsyncMock(return_value={"regime_200d": "bull"}))
    at = SimpleNamespace(strategy_name="swing", remaining_pct=1.0, highest_since_entry=None,
                         created_at=now_kst() - timedelta(days=2), entry_reason=None,
                         entry_price=price)
    monkeypatch.setattr(es, "get_swing_active_trade", AsyncMock(return_value=at))
    api = MagicMock()
    api._quote_delegate = lambda: None
    api.get_daily_chart = AsyncMock(return_value={"output2": list(reversed(recent))})
    api.get_current_price = AsyncMock(return_value={"output": {"stck_prpr": str(int(price))}})
    api.get_balance = AsyncMock(return_value={"rt_cd": "0", "output1": [
        {"pdno": "005930", "hldg_qty": "10", "ord_psbl_qty": "10"}]})
    api.get_daily_ohlcv_range = AsyncMock(side_effect=RuntimeError("kis range down"))
    monkeypatch.setattr(es, "korea_investment_api", api)

    def _ces(**kw):
        captured.append(kw["rsi"])
        return signal
    monkeypatch.setattr(es, "check_exit_signal", _ces)
    monkeypatch.setattr(es, "_time_stop_signal_v2", lambda *a, **k: None)
    monkeypatch.setattr(es, "_resolve_time_stop_entry_v3", AsyncMock(return_value=None))
    monkeypatch.setattr(day_trading_state, "positions", {})
    monkeypatch.setattr(day_trading_state, "save_daily_state", AsyncMock())
    sent = []

    async def _spo(**kw):
        sent.append((kw["stock_code"], kw["quantity"]))
        return {"rt_cd": "0", "output": {"ODNO": "9"}}
    monkeypatch.setattr(te, "safe_place_order", _spo)
    monkeypatch.setattr(es, "enqueue_trade_history", AsyncMock())
    monkeypatch.setattr(es, "enqueue_close_active_trade", AsyncMock())
    monkeypatch.setattr(dbw, "enqueue_active_trade_upsert", AsyncMock())
    monkeypatch.setattr(dbw, "enqueue_db_write", AsyncMock())
    monkeypatch.setattr(pcb, "reflect_sell", AsyncMock())
    monkeypatch.setattr(es, "_schedule_swing_sell_fill_check_v2", MagicMock())
    monkeypatch.setattr(es, "_prior_position_realized_net_v2", AsyncMock(return_value=None))
    monkeypatch.setattr(es.loss_tracker, "record_trade_result_safe", AsyncMock())
    monkeypatch.setattr(es.loss_tracker, "save_to_db", AsyncMock())
    return sent


@pytest.mark.asyncio
async def test_exit_loop_passes_full_history_rsi(monkeypatch, _reset):
    es = _reset
    history, recent, closes = _fixture_bars()
    import app.services.naver_finance as nf
    monkeypatch.setattr(nf, "get_naver_daily_chart", AsyncMock(return_value=history))
    captured = []
    _loop_env(monkeypatch, es, recent, captured)
    es._recent_exits.clear()
    await es.check_and_execute_exit_v2(MagicMock())
    assert captured and captured[0] == pytest.approx(calculate_rsi(closes))
    assert captured[0] != pytest.approx(calculate_rsi([float(b["stck_clpr"]) for b in recent]))


@pytest.mark.asyncio
async def test_exit_loop_history_failure_keeps_stop_loss(monkeypatch, _reset):
    """이력 조회가 전부 실패해도 30봉 RSI 로 판정되고 손절 신호는 그대로 주문된다(§8.1-11)."""
    es = _reset
    _, recent, _ = _fixture_bars()
    import app.services.naver_finance as nf
    monkeypatch.setattr(nf, "get_naver_daily_chart", AsyncMock(side_effect=RuntimeError("down")))
    captured = []
    sent = _loop_env(monkeypatch, es, recent, captured,
                     signal=ExitSignal(action="SELL_ALL", reason="손절 테스트", sell_pct=1.0))
    es._recent_exits.clear()
    await es.check_and_execute_exit_v2(MagicMock())
    assert captured[0] == pytest.approx(calculate_rsi([float(b["stck_clpr"]) for b in recent]))
    assert sent == [("005930", 10)]