"""멀티테넌트(사용자별 매매) 1단계 통합 테스트 (D그룹, 격리 환경).

`docs/multi_tenant_design.md` §7 "테스트 전략" (a)~(h) 대응.

- 격리 원칙: 반드시 **임시 Postgres 컨테이너**(DATABASE_URL을 그 컨테이너로 지정)에서
  실행한다. 라이브 `autostock-postgres`/`autostock-backend`/`autostock-redis`에는
  어떤 쓰기·주문 경로도 호출하지 않는다. Redis는 `fakeredis`로 대체하고,
  `KoreaInvestmentAPI`의 주문/잔고/`for_user` 계열은 전부 monkeypatch 로 가짜 구현을
  주입한다(가드: `test_00_mocks_applied_guard`).
- 이벤트 루프/lifespan/스키마 생성/HTTP 클라이언트/DB 가드는 `conftest.py`(H4, 이 디렉터리
  공용)가 제공한다 — `settings.DATABASE_URL`이 `_test`로 끝나지 않으면 세션 시작 시
  `pytest.exit()`.
- 실행 예시 (임시 컨테이너 안에서):
    docker run --rm --network host \
      -v $(pwd)/backend:/app -w /app \
      -e DATABASE_URL=postgresql://autostock:test@127.0.0.1:15499/autostock_test \
      -e SECRET_KEY=test-secret-key-for-integration-tests-32chars \
      -e CREDENTIALS_ENCRYPTION_KEY=test-cred-key-for-integration-tests-32c \
      -e BOOTSTRAP_ADMIN_PASSWORD=bootstrap-pw \
      auto-stock-backend:latest \
      bash -lc "pip install -q fakeredis pytest-asyncio httpx && python -m pytest tests/integration/test_multi_tenant.py -m integration -v"
"""
import asyncio
import time
from datetime import datetime, timedelta, timezone

import pytest
import pytest_asyncio
from sqlalchemy import delete, text

pytestmark = pytest.mark.integration

from app.core.database import AsyncSessionLocal  # noqa: E402
from app.core.security import _get_api_key, create_session_token  # noqa: E402
from app.models.models import (  # noqa: E402
    ActiveTrade,
    Portfolio,
    StockBanV2,
    TradeHistory,
    User,
    UserKisCredential,
)
from app.services import db_worker as db_worker_module  # noqa: E402
from app.services.db_worker import (  # noqa: E402
    db_writer_worker,
    enqueue_stock_ban_upsert_v2,
)
from app.services.korea_investment_api import KoreaInvestmentAPI  # noqa: E402
from app.services.loss_tracker import ConsecutiveLossTracker  # noqa: E402
from app.services.tenant import bootstrap as tenant_bootstrap  # noqa: E402
from app.services.tenant.kis_pool import kis_client_pool  # noqa: E402
from app.services.tenant.registry import user_context_registry  # noqa: E402
from app.services.tenant.context import UserContext  # noqa: E402
from app.services import trade_executor as trade_executor_module  # noqa: E402
from app.core import redis as redis_module  # noqa: E402
from app.api.endpoints import kis_credentials as kis_credentials_module  # noqa: E402

from .conftest import _auth  # noqa: E402

_SUFFIX = str(int(time.time()))


# ─────────────────────────────────────────────────────────────────────────────
# 가드 — mock이 실제로 적용됐는지 매 테스트 전에 확인 (§지시사항 필수 가드)
# ─────────────────────────────────────────────────────────────────────────────
class _FakeKis:
    """`KoreaInvestmentAPI` 대체 — 네트워크 호출을 절대 하지 않는다."""

    def __init__(self, rt_cd="0", balance=None, order_id="FAKE0001"):
        self._rt_cd = rt_cd
        self._balance = balance or {
            "rt_cd": "0",
            "output1": [],
            "output2": [{"dnca_tot_amt": "1000000", "tot_evlu_amt": "5000000", "scts_evlu_amt": "4000000"}],
        }
        self._order_id = order_id
        self.place_order_calls = []
        self.closed = False

    async def get_balance(self):
        return self._balance

    async def get_overseas_balance(self):
        return {"rt_cd": "0", "output1": [], "output2": [{}]}

    async def get_current_price(self, stock_code):
        return {"output": {"stck_prpr": "10000", "hts_kor_isnm": f"종목{stock_code}"}}

    async def place_order(self, stock_code, order_type, quantity, price=None):
        self.place_order_calls.append(
            {"stock_code": stock_code, "order_type": order_type, "quantity": quantity, "price": price}
        )
        return {"rt_cd": self._rt_cd, "msg1": "정상처리", "output": {"ODNO": self._order_id}}

    async def cancel_order(self, order_id, quantity):
        return {"rt_cd": "0", "msg1": "정상처리"}

    async def close(self):
        self.closed = True


class _FakeMddAlwaysOpen:
    async def can_open_new_position(self) -> bool:
        return True


class _FakeLossTrackerNeverBanned:
    async def is_banned_safe(self, stock_code: str) -> bool:
        return False


@pytest.fixture(autouse=True)
def _guard_no_real_kis(monkeypatch):
    """모든 테스트에서 실제 KIS 호출 경로를 차단 — 클래스 메서드 자체를 막아 우회 불가하게 함."""

    async def _blocked(*args, **kwargs):
        raise AssertionError("실제 KIS API 호출이 시도되었습니다 — 테스트에서는 반드시 mock 되어야 합니다")

    monkeypatch.setattr(KoreaInvestmentAPI, "place_order", _blocked, raising=False)
    monkeypatch.setattr(KoreaInvestmentAPI, "place_overseas_order", _blocked, raising=False)
    yield


def test_00_mocks_applied_guard(monkeypatch):
    """가드: `safe_place_order_v2`가 실제로 `ctx.kis`(fake)를 호출하고, 전역
    `KoreaInvestmentAPI.place_order`는 호출되지 않는지 사전 확인."""
    fake = _FakeKis()
    assert asyncio.run(fake.place_order("005930", "BUY", 1)) is not None
    # 전역 클래스 메서드는 fixture에서 차단됨 — 직접 호출하면 AssertionError
    inst = KoreaInvestmentAPI.__new__(KoreaInvestmentAPI)
    with pytest.raises(AssertionError):
        asyncio.run(KoreaInvestmentAPI.place_order(inst, "005930", "BUY", 1))


# ─────────────────────────────────────────────────────────────────────────────
# 공용 fixture
# ─────────────────────────────────────────────────────────────────────────────
@pytest_asyncio.fixture
async def two_users():
    """테스트용 사용자 2명(A=admin/legacy owner, B=일반) 생성 + 세션 토큰. 종료 시 완전 삭제."""
    async with AsyncSessionLocal() as db:
        u_a = User(username=f"mt_a_{_SUFFIX}", password_hash="x", is_active=True, is_admin=True)
        u_b = User(username=f"mt_b_{_SUFFIX}", password_hash="x", is_active=True, is_admin=False)
        db.add_all([u_a, u_b])
        await db.commit()
        await db.refresh(u_a)
        await db.refresh(u_b)

    token_a, _ = create_session_token(u_a.username)
    token_b, _ = create_session_token(u_b.username)
    ids = [u_a.id, u_b.id]

    yield {"a_id": u_a.id, "a_token": token_a, "a_user": u_a.username, "b_id": u_b.id, "b_token": token_b}

    async with AsyncSessionLocal() as db:
        await db.execute(delete(StockBanV2).where(StockBanV2.user_id.in_(ids)))
        await db.execute(delete(ActiveTrade).where(ActiveTrade.user_id.in_(ids)))
        await db.execute(delete(TradeHistory).where(TradeHistory.user_id.in_(ids)))
        await db.execute(delete(Portfolio).where(Portfolio.user_id.in_(ids)))
        await db.execute(delete(UserKisCredential).where(UserKisCredential.user_id.in_(ids)))
        await db.execute(delete(User).where(User.id.in_(ids)))
        await db.commit()
    for uid in ids:
        await kis_client_pool.invalidate(uid)
        await user_context_registry.invalidate(uid)
    kis_credentials_module._last_verify_attempt.pop(ids[0], None)
    kis_credentials_module._last_verify_attempt.pop(ids[1], None)


async def _run_worker_and_wait(task: dict, check, timeout: float = 5.0):
    """db_writer_worker를 짧게 기동해 task 1건을 처리시키고, `check()`가 True가
    될 때까지 폴링한 뒤 워커를 취소한다.

    db_writer_worker는 무한 루프 + task_done() 미호출 구조라 queue.join()으로
    동기화할 수 없으므로, 결과가 DB에 반영됐는지 폴링으로 확인한다.
    """
    queue = db_worker_module.get_db_task_queue()
    worker = asyncio.create_task(db_writer_worker())
    try:
        await queue.put(task)
        deadline = time.monotonic() + timeout
        while time.monotonic() < deadline:
            if await check():
                return
            await asyncio.sleep(0.05)
        raise AssertionError(f"db_worker task {task.get('type')} 결과를 {timeout}s 내에 확인하지 못함")
    finally:
        worker.cancel()
        try:
            await worker
        except asyncio.CancelledError:
            pass


# ─────────────────────────────────────────────────────────────────────────────
# (a) 두 사용자 register/login → PUT /account/credentials → 마스킹 조회 → 동일 앱키 409
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_a_register_login_credentials_duplicate_appkey(client, monkeypatch):
    from app.core.config import settings

    monkeypatch.setattr(settings, "SIGNUP_ENABLED", True)
    monkeypatch.setattr(settings, "SIGNUP_AUTO_APPROVE", True)

    uname1 = f"mt_reg_a_{_SUFFIX}"
    uname2 = f"mt_reg_b_{_SUFFIX}"
    try:
        r = await client.post("/api/v1/auth/register", json={"username": uname1, "password": "Passw0rd!123"})
        assert r.status_code == 201, r.text
        r = await client.post("/api/v1/auth/register", json={"username": uname2, "password": "Passw0rd!123"})
        assert r.status_code == 201, r.text

        r = await client.post("/api/v1/auth/login", json={"username": uname1, "password": "Passw0rd!123"})
        assert r.status_code == 200, r.text
        token1 = r.json()["token"]
        r = await client.post("/api/v1/auth/login", json={"username": uname2, "password": "Passw0rd!123"})
        assert r.status_code == 200, r.text
        token2 = r.json()["token"]

        h1, h2 = _auth(token1), _auth(token2)
        body = {"mode": "virtual", "app_key": f"regtestkey{_SUFFIX}", "app_secret": f"regsecret{_SUFFIX}", "account_no": "1111111101"}
        r = await client.put("/api/v1/account/credentials", headers=h1, json=body)
        assert r.status_code == 200, r.text
        data = r.json()
        assert data["app_key_hint"] == body["app_key"][:6] + "…"
        assert body["app_key"] not in r.text and body["app_secret"] not in r.text

        r = await client.get("/api/v1/account/credentials", headers=h1)
        assert r.status_code == 200
        assert r.json()["app_key_hint"] == data["app_key_hint"]

        dup = dict(body, account_no="2222222201")
        r = await client.put("/api/v1/account/credentials", headers=h2, json=dup)
        assert r.status_code == 409
    finally:
        async with AsyncSessionLocal() as db:
            uids_res = await db.execute(select_users_by_username(uname1, uname2))
            uids = [row[0] for row in uids_res]
            await db.execute(delete(UserKisCredential).where(UserKisCredential.user_id.in_(uids)))
            await db.execute(delete(User).where(User.id.in_(uids)))
            await db.commit()
        for uid in uids:
            await kis_client_pool.invalidate(uid)


def select_users_by_username(*usernames):
    from sqlalchemy import select as _select
    return _select(User.id).where(User.username.in_(usernames))


# ─────────────────────────────────────────────────────────────────────────────
# (b) upsert_portfolio — user_id A/B로 동일 종목 2행 공존 (0012 이전 알려진 제약 → xfail)
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
@pytest.mark.xfail(
    strict=True,
    reason=(
        "설계 §3.2/§7: portfolio.stock_code 는 0012 마이그레이션 전까지 전역 unique 유지 — "
        "서로 다른 user_id로 동일 stock_code를 upsert하면 두 번째 INSERT가 UniqueViolation으로 실패한다."
    ),
)
async def test_b_upsert_portfolio_same_stock_two_users_conflict(two_users):
    stock_code = f"9{_SUFFIX[-5:]}"  # 6자리 임시 코드

    async def _row_exists(user_id: int) -> bool:
        async with AsyncSessionLocal() as db:
            from sqlalchemy import select as _select
            res = await db.execute(
                _select(Portfolio).where(Portfolio.user_id == user_id, Portfolio.stock_code == stock_code)
            )
            return res.scalar_one_or_none() is not None

    await _run_worker_and_wait(
        {
            "type": "upsert_portfolio",
            "data": {
                "user_id": two_users["a_id"], "stock_code": stock_code, "stock_name": "테스트",
                "quantity": 10, "average_price": 1000, "current_price": 1000,
                "market": "KRX", "strategy_type": "manual",
            },
        },
        lambda: _row_exists(two_users["a_id"]),
    )
    # 서로 다른 user_id로 동일 stock_code upsert 시도 — unique(stock_code) 위반으로 두 번째 행이 생기지 않아야
    # "성공"(xfail 대상)하지만, 실제로는 IntegrityError 로 조용히 실패(예외를 삼키고 재시도 로직을 태움)한다.
    await _run_worker_and_wait(
        {
            "type": "upsert_portfolio",
            "data": {
                "user_id": two_users["b_id"], "stock_code": stock_code, "stock_name": "테스트",
                "quantity": 5, "average_price": 2000, "current_price": 2000,
                "market": "KRX", "strategy_type": "manual",
            },
        },
        lambda: _row_exists(two_users["b_id"]),
        timeout=2.0,
    )

    async with AsyncSessionLocal() as db:
        from sqlalchemy import select as _select
        res = await db.execute(_select(Portfolio).where(Portfolio.stock_code == stock_code))
        rows = res.scalars().all()
    assert len(rows) == 2, "두 사용자가 동일 종목을 공존 보유해야 한다 (0012 이전에는 실패가 알려진 제약)"


# ─────────────────────────────────────────────────────────────────────────────
# (c) upsert_stock_ban_v2 — 사용자별 ban 분리 + load_from_db_v2 복원
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_c_stock_ban_v2_upsert_tz_aware_datetime_bug(two_users):
    """실제 loss_tracker 경로(tz-aware ban_until)로 upsert_stock_ban_v2를 태워도
    db_worker가 저장 직전 naive-UTC로 정규화해 DB write가 성공해야 한다
    (수정 전에는 asyncpg DataError로 DLQ에 빠졌던 결함)."""
    stock_code = "005930"
    ban_until_a = datetime.now(timezone.utc) + timedelta(days=42)  # 실제 코드와 동일하게 tz-aware

    async def _ban_exists(user_id: int) -> bool:
        async with AsyncSessionLocal() as db:
            from sqlalchemy import select as _select
            res = await db.execute(
                _select(StockBanV2).where(StockBanV2.user_id == user_id, StockBanV2.stock_code == stock_code)
            )
            return res.scalar_one_or_none() is not None

    await enqueue_stock_ban_upsert_v2(two_users["a_id"], stock_code, 3, ban_until_a)
    worker = asyncio.create_task(db_writer_worker())
    try:
        deadline = time.monotonic() + 8  # 지수 백오프(1→2→4s) 3회 재시도를 기다림
        while time.monotonic() < deadline and not await _ban_exists(two_users["a_id"]):
            await asyncio.sleep(0.1)
        assert await _ban_exists(two_users["a_id"])
    finally:
        worker.cancel()
        try:
            await worker
        except asyncio.CancelledError:
            pass


@pytest.mark.asyncio
async def test_c_stock_ban_v2_load_from_db_v2_per_user_isolation(two_users):
    """읽기 경로(load_from_db_v2)만 검증 — 위 결함(tz-aware 쓰기)과 독립적으로,
    tz-naive 값을 직접 INSERT해 사용자별 격리가 올바른지 확인한다."""
    stock_code = "005930"
    ban_until_a = datetime.now(timezone.utc).replace(tzinfo=None) + timedelta(days=42)

    async with AsyncSessionLocal() as db:
        db.add(StockBanV2(user_id=two_users["a_id"], stock_code=stock_code, consecutive_losses=3, ban_until=ban_until_a))
        await db.commit()

    tracker_a = ConsecutiveLossTracker(ban_count=3, ban_calendar_days=42)
    tracker_b = ConsecutiveLossTracker(ban_count=3, ban_calendar_days=42)
    async with AsyncSessionLocal() as db:
        await tracker_a.load_from_db_v2(db, two_users["a_id"])
        await tracker_b.load_from_db_v2(db, two_users["b_id"])

    assert await tracker_a.is_banned_safe(stock_code) is True
    assert await tracker_b.is_banned_safe(stock_code) is False


# ─────────────────────────────────────────────────────────────────────────────
# (c-legacy) save_to_db() → load_from_db() 라운드트립 — 레거시 stock_bans도
# tz-aware ban_until을 안전하게 저장·복원해야 한다 (db_worker.py fix 회귀 방지)
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_c_legacy_stock_ban_save_load_roundtrip_tz_aware():
    from app.models.models import StockBan

    stock_code = f"8{_SUFFIX[-5:]}"  # 6자리 임시 코드, stock_bans PK 충돌 회피

    async def _ban_row(db):
        from sqlalchemy import select as _select
        res = await db.execute(_select(StockBan).where(StockBan.stock_code == stock_code))
        return res.scalar_one_or_none()

    tracker = ConsecutiveLossTracker(ban_count=3, ban_calendar_days=42)
    tracker.record_trade_result(stock_code, is_loss=True)
    tracker.record_trade_result(stock_code, is_loss=True)
    tracker.record_trade_result(stock_code, is_loss=True)  # 3연패 → tz-aware ban_until 생성

    worker = asyncio.create_task(db_writer_worker())
    try:
        await tracker.save_to_db(stock_code=stock_code)
        deadline = time.monotonic() + 5.0
        row = None
        while time.monotonic() < deadline:
            async with AsyncSessionLocal() as db:
                row = await _ban_row(db)
            if row is not None:
                break
            await asyncio.sleep(0.05)
        assert row is not None, "save_to_db()가 stock_bans에 tz-aware ban_until을 정규화해 저장해야 한다"
        assert row.ban_until.tzinfo is None, "stock_bans.ban_until은 naive-UTC로 저장돼야 한다"
    finally:
        worker.cancel()
        try:
            await worker
        except asyncio.CancelledError:
            pass

    reloaded = ConsecutiveLossTracker(ban_count=3, ban_calendar_days=42)
    async with AsyncSessionLocal() as db:
        await reloaded.load_from_db(db)

    assert reloaded.is_banned(stock_code) is True

    async with AsyncSessionLocal() as db:
        await db.execute(delete(StockBan).where(StockBan.stock_code == stock_code))
        await db.commit()


# ─────────────────────────────────────────────────────────────────────────────
# (d) safe_place_order_v2 락 키 — fakeredis로 user_id별 키가 다르게 생성되는지
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_d_order_lock_key_namespaced_by_user(monkeypatch, two_users):
    fakeredis = pytest.importorskip("fakeredis")
    fake_client = fakeredis.aioredis.FakeRedis(decode_responses=True)
    monkeypatch.setattr(redis_module, "_redis_client", fake_client)

    ctx_a = UserContext(
        user_id=two_users["a_id"], username="a", mode="virtual",
        kis=_FakeKis(), mdd=None, loss_tracker=None, auto_trade_enabled=True, is_legacy=False,
    )
    ctx_b = UserContext(
        user_id=two_users["b_id"], username="b", mode="virtual",
        kis=_FakeKis(), mdd=None, loss_tracker=None, auto_trade_enabled=True, is_legacy=False,
    )

    seen_keys = []
    orig_set = fake_client.set

    async def _tracking_set(key, *a, **kw):
        seen_keys.append(key)
        return await orig_set(key, *a, **kw)

    monkeypatch.setattr(fake_client, "set", _tracking_set)

    r_a = await trade_executor_module.safe_place_order_v2(ctx_a, "005930", "BUY", 1)
    r_b = await trade_executor_module.safe_place_order_v2(ctx_b, "005930", "BUY", 1)

    assert r_a["rt_cd"] == "0" and r_b["rt_cd"] == "0"
    assert ctx_a.kis.place_order_calls and ctx_b.kis.place_order_calls
    expected_a = f"order_lock:{two_users['a_id']}:005930:BUY"
    expected_b = f"order_lock:{two_users['b_id']}:005930:BUY"
    assert expected_a in seen_keys
    assert expected_b in seen_keys
    assert expected_a != expected_b

    await fake_client.aclose()


# ─────────────────────────────────────────────────────────────────────────────
# (e) MULTI_TENANT_ENABLED=False 에서 GET /portfolio/v2 == GET /portfolio (레거시 호환)
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_e_legacy_parity_portfolio_v2_matches_portfolio(client, monkeypatch):
    from app.core.config import settings
    from app.api.endpoints import portfolio as portfolio_module
    from app.services import korea_investment_api as kis_module

    monkeypatch.setattr(settings, "MULTI_TENANT_ENABLED", False)

    # effective_user_id가 legacy owner id를 반환하려면 admin(=legacy owner)이 최소 1명 있어야 함
    # (설계상 admin 0명이면 400 — 이 테스트는 그 케이스가 아니라 "정상 legacy 경로"를 검증)
    async with AsyncSessionLocal() as db:
        legacy_admin = User(username=f"mt_legacy_owner_{_SUFFIX}", password_hash="x", is_active=True, is_admin=True)
        db.add(legacy_admin)
        await db.commit()
        await db.refresh(legacy_admin)
    legacy_admin_id = legacy_admin.id
    # 이전 테스트가 캐싱한 legacy owner_id(0/None)를 무효화 — invalidate_all()은
    # 사용자별 캐시만 지우고 legacy 캐시(TTL 60s)는 건드리지 않으므로 직접 리셋한다.
    user_context_registry._legacy_ctx = None
    user_context_registry._legacy_checked_at = 0.0

    async def _fake_get_current_price(self, code):
        return {"output": {"stck_prpr": "55000", "hts_kor_isnm": "삼성전자우"}}

    monkeypatch.setattr(KoreaInvestmentAPI, "get_current_price", _fake_get_current_price, raising=False)

    stock_code = "005935"
    fake_balance = {
        "rt_cd": "0",
        "output1": [
            {
                "pdno": stock_code, "hldg_qty": "3", "pchs_avg_pric": "50000",
                "prpr": "55000", "evlu_pfls_amt": "15000", "evlu_pfls_rt": "10.0",
                "prdt_name": "삼성전자우",
            }
        ],
        "output2": [{"dnca_tot_amt": "1000000", "tot_evlu_amt": "5000000"}],
    }

    async def _fake_get_balance():
        return fake_balance

    async def _fake_get_overseas_balance():
        return {"rt_cd": "0", "output1": [], "output2": [{}]}

    monkeypatch.setattr(kis_module.korea_investment_api, "get_balance", _fake_get_balance)
    monkeypatch.setattr(kis_module.korea_investment_api, "get_overseas_balance", _fake_get_overseas_balance)

    # 캐시를 강제로 비워 이번 호출에서 반드시 재동기화되게 함
    portfolio_module.portfolio_cache.holdings = []
    portfolio_module.portfolio_cache.last_synced = None
    portfolio_module.portfolio_cache.mark_changed()

    try:
        r_legacy = await client.get("/api/v1/portfolio", headers=_auth(_get_api_key()))
        assert r_legacy.status_code == 200, r_legacy.text
        legacy_rows = sorted(r_legacy.json(), key=lambda h: h["stock_code"])

        r_v2 = await client.get("/api/v1/portfolio/v2", headers=_auth(_get_api_key()))
        assert r_v2.status_code == 200, r_v2.text
        v2_rows = sorted(r_v2.json(), key=lambda h: h["stock_code"])

        assert [h["stock_code"] for h in legacy_rows] == [h["stock_code"] for h in v2_rows]
        assert [h["quantity"] for h in legacy_rows] == [h["quantity"] for h in v2_rows]
    finally:
        async with AsyncSessionLocal() as db:
            await db.execute(delete(Portfolio).where(Portfolio.stock_code == stock_code))
            await db.execute(delete(User).where(User.id == legacy_admin_id))
            await db.commit()
        portfolio_module.portfolio_cache.holdings = []
        portfolio_module.portfolio_cache.mark_changed()
        await user_context_registry.invalidate_all()


# ─────────────────────────────────────────────────────────────────────────────
# (f) GET /portfolio/v2 — 사용자별 격리 + 관리자 ?user_id= 열람 + 비관리자 403
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_f_portfolio_v2_isolation_and_admin_override(client, monkeypatch, two_users):
    from app.core.config import settings

    monkeypatch.setattr(settings, "MULTI_TENANT_ENABLED", True)

    async with AsyncSessionLocal() as db:
        db.add(Portfolio(
            user_id=two_users["a_id"], stock_code="000660", stock_name="A종목",
            quantity=5, average_price=1000, current_price=1000, profit_loss=0, profit_loss_rate=0,
            market="KRX", strategy_type="manual",
        ))
        db.add(Portfolio(
            user_id=two_users["b_id"], stock_code="035420", stock_name="B종목",
            quantity=7, average_price=2000, current_price=2000, profit_loss=0, profit_loss_rate=0,
            market="KRX", strategy_type="manual",
        ))
        await db.commit()

    try:
        r = await client.get("/api/v1/portfolio/v2", headers=_auth(two_users["a_token"]))
        assert r.status_code == 200
        codes_a = {h["stock_code"] for h in r.json()}
        assert "000660" in codes_a
        assert "035420" not in codes_a  # B의 행이 보이지 않음

        r = await client.get("/api/v1/portfolio/v2", headers=_auth(two_users["b_token"]))
        codes_b = {h["stock_code"] for h in r.json()}
        assert "035420" in codes_b
        assert "000660" not in codes_b

        # 관리자(A)가 ?user_id=B 로 조회 — 허용
        r = await client.get(
            f"/api/v1/portfolio/v2?user_id={two_users['b_id']}", headers=_auth(two_users["a_token"])
        )
        assert r.status_code == 200
        assert "035420" in {h["stock_code"] for h in r.json()}

        # 비관리자(B)가 ?user_id=A 로 조회 — 403
        r = await client.get(
            f"/api/v1/portfolio/v2?user_id={two_users['a_id']}", headers=_auth(two_users["b_token"])
        )
        assert r.status_code == 403
    finally:
        async with AsyncSessionLocal() as db:
            await db.execute(delete(Portfolio).where(Portfolio.stock_code.in_(["000660", "035420"])))
            await db.commit()


# ─────────────────────────────────────────────────────────────────────────────
# (g) POST /portfolio/v2/sell — 타 사용자 종목 404, 본인 종목은 ctx.user_id로 주문·close 호출
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_g_sell_v2_cross_user_404_and_own_stock_uses_ctx(client, monkeypatch, two_users):
    from app.core.config import settings
    from app.services.tenant import registry as registry_module

    monkeypatch.setattr(settings, "MULTI_TENANT_ENABLED", True)

    fake_kis_a = _FakeKis()
    ctx_a = UserContext(
        user_id=two_users["a_id"], username="a", mode="virtual", kis=fake_kis_a,
        mdd=None, loss_tracker=None, auto_trade_enabled=True, is_legacy=False,
    )

    async def _fake_resolve(current_user, db):
        return ctx_a

    monkeypatch.setattr(registry_module.user_context_registry, "resolve", _fake_resolve)

    close_calls = []

    async def _fake_close(user_id, stock_code, strategy_name=None):
        close_calls.append((user_id, stock_code, strategy_name))

    monkeypatch.setattr(
        "app.api.endpoints.portfolio_v2.enqueue_close_active_trade_v2", _fake_close
    )

    async with AsyncSessionLocal() as db:
        db.add(Portfolio(
            user_id=two_users["a_id"], stock_code="005380", stock_name="A보유",
            quantity=10, average_price=1000, current_price=1000, profit_loss=0, profit_loss_rate=0,
            market="KRX", strategy_type="manual",
        ))
        db.add(Portfolio(
            user_id=two_users["b_id"], stock_code="051910", stock_name="B보유",
            quantity=10, average_price=1000, current_price=1000, profit_loss=0, profit_loss_rate=0,
            market="KRX", strategy_type="manual",
        ))
        await db.commit()

    try:
        # B 종목을 A가 매도 시도 → 404
        r = await client.post(
            "/api/v1/portfolio/v2/sell",
            headers=_auth(two_users["a_token"]),
            json={"stock_code": "051910", "quantity": 1},
        )
        assert r.status_code == 404

        # A 종목 매도 → 성공, fake kis 호출 인자에 ctx.user_id 반영 확인
        r = await client.post(
            "/api/v1/portfolio/v2/sell",
            headers=_auth(two_users["a_token"]),
            json={"stock_code": "005380", "quantity": 10},
        )
        assert r.status_code == 200, r.text
        assert fake_kis_a.place_order_calls, "safe_place_order_v2가 ctx.kis(fake)를 통해 주문해야 한다"
        call = fake_kis_a.place_order_calls[0]
        assert call["stock_code"] == "005380" and call["order_type"] == "SELL"
        assert close_calls and close_calls[0][0] == two_users["a_id"] and close_calls[0][1] == "005380"
    finally:
        async with AsyncSessionLocal() as db:
            await db.execute(delete(Portfolio).where(Portfolio.stock_code.in_(["005380", "051910"])))
            await db.commit()


# ─────────────────────────────────────────────────────────────────────────────
# (h) ensure_bootstrap_admin() — 빈 users, KIS env 이관, idempotent, NULL 백필
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_h_bootstrap_admin_seed_and_idempotent(monkeypatch):
    from app.core.config import settings

    # 이 테스트만을 위한 격리 — users 테이블을 비워야 하므로 세션 스코프 오염 방지를 위해
    # 테스트 전용 사용자명으로 필터링된 범위만 조작 가능해야 하나, ensure_bootstrap_admin은
    # "users 테이블 전체가 비어있는지"를 보므로 실제로 테이블을 비운다 — 임시 DB 한정.
    async with AsyncSessionLocal() as db:
        existing = (await db.execute(select_all_users())).scalars().all()
        assert existing == [], (
            "이 테스트는 users 테이블이 완전히 비어 있어야 한다 — 임시 격리 DB 전용 테스트. "
            "다른 테스트와 병렬/순서 오염 시 실패할 수 있음 (세션 순차 실행 전제)."
        )

    monkeypatch.setattr(settings, "BOOTSTRAP_ADMIN_PASSWORD", "bootstrap-pw-123")
    monkeypatch.setattr(settings, "BOOTSTRAP_ADMIN_USERNAME", f"bootadmin_{_SUFFIX}")
    monkeypatch.setattr(settings, "CREDENTIALS_ENCRYPTION_KEY", "x" * 40)
    monkeypatch.setattr(settings, "KOREA_INVESTMENT_APP_KEY", f"envappkey{_SUFFIX}")
    monkeypatch.setattr(settings, "KOREA_INVESTMENT_APP_SECRET", "envsecret")
    monkeypatch.setattr(settings, "KOREA_INVESTMENT_ACCOUNT_NUMBER", "1234567801")
    monkeypatch.setattr(settings, "KIS_MODE", "virtual")
    monkeypatch.setattr(settings, "AUTO_TRADE_ENABLED", False)

    try:
        await tenant_bootstrap.ensure_bootstrap_admin()

        async with AsyncSessionLocal() as db:
            from sqlalchemy import select as _select
            admin = (
                await db.execute(_select(User).where(User.username == f"bootadmin_{_SUFFIX}"))
            ).scalar_one_or_none()
            assert admin is not None
            assert admin.is_admin is True and admin.is_active is True

            cred = (
                await db.execute(_select(UserKisCredential).where(UserKisCredential.user_id == admin.id))
            ).scalar_one_or_none()
            assert cred is not None
            from app.core.crypto import decrypt
            assert decrypt(cred.app_key_enc, cred.key_version) == f"envappkey{_SUFFIX}"
            assert decrypt(cred.account_no_enc, cred.key_version) == "1234567801"

        # NULL user_id 백필 확인용 레거시 행 삽입 후 재실행
        async with AsyncSessionLocal() as db:
            db.add(Portfolio(
                user_id=None, stock_code="900001", stock_name="레거시", quantity=1,
                average_price=100, current_price=100, market="KRX", strategy_type="swing",
            ))
            await db.commit()

        await tenant_bootstrap.ensure_bootstrap_admin()  # 2번째 호출 — idempotent 여야 함

        async with AsyncSessionLocal() as db:
            from sqlalchemy import select as _select, func as _func
            admin_count = (
                await db.execute(
                    _select(_func.count()).select_from(User).where(User.username == f"bootadmin_{_SUFFIX}")
                )
            ).scalar()
            assert admin_count == 1, "재호출해도 관리자 계정이 중복 생성되지 않아야 한다"

            cred_count = (
                await db.execute(
                    _select(_func.count()).select_from(UserKisCredential).where(UserKisCredential.user_id == admin.id)
                )
            ).scalar()
            assert cred_count == 1, "재호출해도 KIS 자격증명이 중복 이관되지 않아야 한다"

            legacy_row = (
                await db.execute(_select(Portfolio).where(Portfolio.stock_code == "900001"))
            ).scalar_one_or_none()
            assert legacy_row is not None and legacy_row.user_id == admin.id, (
                "user_id IS NULL 이던 레거시 행이 owner로 백필되어야 한다"
            )
    finally:
        async with AsyncSessionLocal() as db:
            from sqlalchemy import select as _select
            admin = (
                await db.execute(_select(User).where(User.username == f"bootadmin_{_SUFFIX}"))
            ).scalar_one_or_none()
            await db.execute(delete(Portfolio).where(Portfolio.stock_code == "900001"))
            if admin is not None:
                await db.execute(delete(UserKisCredential).where(UserKisCredential.user_id == admin.id))
                await db.execute(delete(User).where(User.id == admin.id))
            await db.commit()


def select_all_users():
    from sqlalchemy import select as _select
    return _select(User)


# ─────────────────────────────────────────────────────────────────────────────
# M1 회귀 방지 — CurrentUser.effective_user_id 와 UserContextRegistry.legacy().user_id 가
# 관리자 미존재 상태에서 모두 None 으로 일치해야 한다(수정 전에는 0 vs None 불일치 결함이었음).
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_m1_effective_user_id_matches_legacy_owner_id_when_no_admin():
    """관리자 0명 상태에서 `CurrentUser.effective_user_id`와
    `UserContextRegistry.legacy().user_id`가 모두 `None`으로 일치해야 한다(M1).

    수정 전에는 후자가 `users.id=0`(존재하지 않는 FK 위반 값)을 반환해
    `enqueue_trade_history({"user_id": 0})` → FK 위반 → db_worker 재시도 후 폐기로
    이어졌다.
    """
    from app.core.tenant_auth import CurrentUser

    async with AsyncSessionLocal() as db:
        no_admin = (
            await db.execute(select_all_users())
        ).scalars().all()
        # 관리자 없는 상태를 흉내내기 위해 admin 여부만 확인 (실제 삭제는 하지 않음 — 다른 테스트와 공유 DB)
        has_admin = any(u.is_admin for u in no_admin)

    current_user = CurrentUser(id=None, username="api-key", is_admin=True, is_api_key=True, _legacy_owner_id=None)
    assert current_user.effective_user_id is None

    if not has_admin:
        # legacy 캐시가 이전 테스트에서 owner_id로 확정(캐시)돼 있을 수 있으므로 리셋
        user_context_registry._legacy_ctx = None
        user_context_registry._legacy_checked_at = 0.0
        user_context_registry._legacy_owner_confirmed = False
        legacy_ctx = await user_context_registry.legacy(None)
        assert legacy_ctx.user_id is None
        assert current_user.effective_user_id == legacy_ctx.user_id


# ─────────────────────────────────────────────────────────────────────────────
# H2 — 비활성(회수) 세션 사용자는 legacy owner 로 폴백하지 않고 401
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_h2_inactive_session_user_returns_401_not_legacy_fallback(client):
    async with AsyncSessionLocal() as db:
        u = User(username=f"mt_revoked_{_SUFFIX}", password_hash="x", is_active=False, is_admin=False)
        db.add(u)
        await db.commit()
        await db.refresh(u)
    token, _ = create_session_token(u.username)

    try:
        r = await client.get("/api/v1/account/credentials", headers=_auth(token))
        assert r.status_code == 401, r.text
        r = await client.get("/api/v1/portfolio/v2", headers=_auth(token))
        assert r.status_code == 401, r.text
    finally:
        async with AsyncSessionLocal() as db:
            await db.execute(delete(User).where(User.id == u.id))
            await db.commit()


# ─────────────────────────────────────────────────────────────────────────────
# H3 — 자격증명 PUT/DELETE/PATCH 후 registry 캐시가 무효화되어야 함
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_h3_credential_endpoints_invalidate_registry_cache(client, two_users):
    user_id = two_users["a_id"]
    headers = _auth(two_users["a_token"])

    body = {"mode": "virtual", "app_key": f"h3key{_SUFFIX}", "app_secret": "s", "account_no": "1234567801"}
    r = await client.put("/api/v1/account/credentials", headers=headers, json=body)
    assert r.status_code == 200, r.text

    dummy_ctx = UserContext(
        user_id=user_id, username="stale", mode="virtual", kis=_FakeKis(),
        mdd=None, loss_tracker=None, auto_trade_enabled=True, is_legacy=False,
    )

    # PUT은 이미 위에서 한 번 invalidate를 호출했으므로, 이후 더미를 주입해 재확인
    user_context_registry._contexts[user_id] = dummy_ctx
    assert user_context_registry._contexts.get(user_id) is dummy_ctx

    r = await client.patch("/api/v1/account/auto-trade", headers=headers, json={"enabled": False})
    assert r.status_code == 200, r.text
    assert user_id not in user_context_registry._contexts, (
        "PATCH /auto-trade 이후 캐시된 UserContext가 무효화되어야 한다(H3)"
    )

    user_context_registry._contexts[user_id] = dummy_ctx
    r = await client.delete("/api/v1/account/credentials", headers=headers)
    assert r.status_code == 204, r.text
    assert user_id not in user_context_registry._contexts, (
        "DELETE /credentials 이후 캐시된 UserContext가 무효화되어야 한다(H3)"
    )


# ─────────────────────────────────────────────────────────────────────────────
# M1 — owner 없는 API 키(legacy ctx user_id=None) 매수 시 db_worker payload에 user_id 키가
# 없어야 한다(0을 넣어 FK 위반을 내던 구 결함 방지, 기존 NULL 행과 정합).
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_m1_legacy_ctx_no_owner_buy_payload_omits_user_id(client, monkeypatch):
    from app.core.config import settings
    from app.services.tenant import registry as registry_module

    monkeypatch.setattr(settings, "MAX_HOLDINGS_COUNT", 10_000)  # 공유 DB에 쌓인 NULL 행과 무관하게

    fake_kis = _FakeKis()
    ctx = UserContext(
        user_id=None, username="legacy", mode="virtual", kis=fake_kis,
        mdd=_FakeMddAlwaysOpen(), loss_tracker=_FakeLossTrackerNeverBanned(),
        auto_trade_enabled=True, is_legacy=True,
    )

    async def _fake_resolve(current_user, db):
        return ctx

    monkeypatch.setattr(registry_module.user_context_registry, "resolve", _fake_resolve)

    captured_history: dict = {}
    captured_portfolio: dict = {}

    async def _fake_enqueue_trade_history(data):
        captured_history.update(data)

    async def _fake_enqueue_portfolio_upsert(data):
        captured_portfolio.update(data)

    monkeypatch.setattr("app.api.endpoints.portfolio_v2.enqueue_trade_history", _fake_enqueue_trade_history)
    monkeypatch.setattr("app.api.endpoints.portfolio_v2.enqueue_portfolio_upsert", _fake_enqueue_portfolio_upsert)

    stock_code = f"6{_SUFFIX[-5:]}"
    try:
        r = await client.post(
            "/api/v1/portfolio/v2/buy",
            headers=_auth(_get_api_key()),
            json={"stock_code": stock_code, "quantity": 1},
        )
        assert r.status_code == 200, r.text
        assert fake_kis.place_order_calls, "safe_place_order_v2가 ctx.kis(fake)를 통해 주문해야 한다"
        assert "user_id" not in captured_history, "legacy ctx(owner 없음)는 trade_history payload에 user_id를 넣지 않아야 한다"
        assert "user_id" not in captured_portfolio, "legacy ctx(owner 없음)는 portfolio upsert payload에 user_id를 넣지 않아야 한다"
    finally:
        async with AsyncSessionLocal() as db:
            await db.execute(delete(Portfolio).where(Portfolio.stock_code == stock_code))
            await db.execute(delete(TradeHistory).where(TradeHistory.stock_code == stock_code))
            await db.commit()


# ─────────────────────────────────────────────────────────────────────────────
# M3 — legacy ctx의 전량 매도는 enqueue_close_active_trade_v2가 아니라 기존
# enqueue_close_active_trade(user_id 없음)를 호출해야 한다(ActiveTrade.user_id==owner
# 필터로 NULL 행을 못 찾아 유령 포지션이 남는 결함 방지).
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_m3_legacy_sell_full_exit_uses_v1_close_not_v2(client, monkeypatch):
    from app.services.tenant import registry as registry_module

    fake_kis = _FakeKis()
    ctx = UserContext(
        user_id=None, username="legacy", mode="virtual", kis=fake_kis,
        mdd=_FakeMddAlwaysOpen(), loss_tracker=_FakeLossTrackerNeverBanned(),
        auto_trade_enabled=True, is_legacy=True,
    )

    async def _fake_resolve(current_user, db):
        return ctx

    monkeypatch.setattr(registry_module.user_context_registry, "resolve", _fake_resolve)

    v1_calls = []
    v2_calls = []

    async def _fake_close_v1(stock_code, strategy_name=None):
        v1_calls.append((stock_code, strategy_name))

    async def _fake_close_v2(user_id, stock_code, strategy_name=None):
        v2_calls.append((user_id, stock_code, strategy_name))

    monkeypatch.setattr("app.api.endpoints.portfolio_v2.enqueue_close_active_trade", _fake_close_v1)
    monkeypatch.setattr("app.api.endpoints.portfolio_v2.enqueue_close_active_trade_v2", _fake_close_v2)

    stock_code = f"5{_SUFFIX[-5:]}"
    async with AsyncSessionLocal() as db:
        db.add(Portfolio(
            user_id=None, stock_code=stock_code, stock_name="레거시보유", quantity=10,
            average_price=1000, current_price=1000, profit_loss=0, profit_loss_rate=0,
            market="KRX", strategy_type="manual",
        ))
        await db.commit()

    try:
        r = await client.post(
            "/api/v1/portfolio/v2/sell",
            headers=_auth(_get_api_key()),
            json={"stock_code": stock_code, "quantity": 10},
        )
        assert r.status_code == 200, r.text
        assert v1_calls and v1_calls[0][0] == stock_code
        assert not v2_calls, "legacy ctx는 enqueue_close_active_trade_v2가 아니라 v1(close_active_trade)을 호출해야 한다"
    finally:
        async with AsyncSessionLocal() as db:
            await db.execute(delete(Portfolio).where(Portfolio.stock_code == stock_code))
            await db.commit()


# ─────────────────────────────────────────────────────────────────────────────
# M5 — MULTI_TENANT_ENABLED=True 에서 legacy owner가 아닌 세션 사용자는 legacy
# `/portfolio` 라우터 접근이 403이어야 한다(`deny_non_owner_session_when_mt`).
# ─────────────────────────────────────────────────────────────────────────────
@pytest.mark.asyncio
async def test_m5_legacy_portfolio_denied_for_non_owner_session_when_mt(client, monkeypatch, two_users):
    from app.core.config import settings

    monkeypatch.setattr(settings, "MULTI_TENANT_ENABLED", True)

    # two_users["b"]는 non-admin(legacy owner일 수 없음)
    r = await client.get("/api/v1/portfolio", headers=_auth(two_users["b_token"]))
    assert r.status_code == 403, r.text

    r = await client.get("/api/v1/portfolio/v2", headers=_auth(two_users["b_token"]))
    assert r.status_code != 403, "/portfolio/v2 는 deny_non_owner_session_when_mt 대상이 아니다"