"""schedulers.py 하드닝 R4 — 매수 0건 조기 탐지(퍼널 집계 / 0건 경보 판정)."""
import asyncio
from datetime import date, datetime

import pytest
import pytz

from app.services import schedulers as S

KST = pytz.timezone("Asia/Seoul")
WED = date(2026, 10, 7)


def _at(d, h, m=0):
    return KST.localize(datetime(d.year, d.month, d.day, h, m))


@pytest.fixture(autouse=True)
def _reset(monkeypatch):
    S._ENTRY_FUNNEL.update(day=None, blocks={}, attempts=0, last_alert_day=None)
    monkeypatch.setattr(S, "now_kst", lambda: _at(WED, 11))


def test_funnel_top_sorted_and_daily_reset(monkeypatch):
    for g, n in (("mdd", 1), ("ml_hold", 5), ("circuit", 3)):
        S.record_entry_gate_block_v2(g, n)
    S.record_entry_attempt_v2()
    f = S.get_entry_funnel_v2(2)
    assert f["blocks_top"] == [("ml_hold", 5), ("circuit", 3)] and f["attempts"] == 1
    monkeypatch.setattr(S, "now_kst", lambda: _at(date(2026, 10, 8), 10))
    assert S.get_entry_funnel_v2()["blocks_top"] == []
    S.record_entry_gate_block_v2("mdd")
    assert S._ENTRY_FUNNEL["blocks"] == {"mdd": 1}


def test_gate_cardinality_capped():
    for i in range(S._ENTRY_FUNNEL_MAX_GATES + 10):
        S.record_entry_gate_block_v2(f"g{i}")
    assert len(S._ENTRY_FUNNEL["blocks"]) <= S._ENTRY_FUNNEL_MAX_GATES + 1


def test_record_never_raises(monkeypatch):
    def boom():
        raise RuntimeError("x")
    monkeypatch.setattr(S, "now_kst", boom)
    S.record_entry_gate_block_v2("a")
    S.record_entry_attempt_v2()


def test_zero_buy_decide():
    h = S._zero_buy_alert_hours_v2()
    ok = _at(WED, 13)
    assert S._zero_buy_decide_v2(ok, 0, "bull", None, h)
    assert not S._zero_buy_decide_v2(ok, 1, "bull", None, h)
    assert not S._zero_buy_decide_v2(ok, 0, "bear", None, h)
    assert not S._zero_buy_decide_v2(ok, 0, "bull", WED, h)
    assert not S._zero_buy_decide_v2(_at(WED, 10), 0, "bull", None, h)
    assert not S._zero_buy_decide_v2(_at(WED, 16), 0, "bull", None, h)
    assert not S._zero_buy_decide_v2(_at(date(2026, 10, 10), 13), 0, "bull", None, h)


def test_alert_hours_uses_settings(monkeypatch):
    from types import SimpleNamespace
    monkeypatch.setattr(S, "settings", SimpleNamespace(ZERO_BUY_ALERT_HOURS=1.5))
    assert S._zero_buy_alert_hours_v2() == 1.5
    monkeypatch.setattr(S, "settings", SimpleNamespace(ZERO_BUY_ALERT_HOURS=-1))
    assert S._zero_buy_alert_hours_v2() == 3.0


def test_count_today_buys_groups_and_defaults_swing():
    class R:
        def all(self):
            return [(None, 2), ("daytrading", 3)]

    class DB:
        async def execute(self, q):
            return R()
    out = asyncio.run(S._count_today_buys_v2(DB()))
    assert out == {"swing": 2, "daytrading": 3}


def test_format_includes_buys_and_top():
    S.record_entry_gate_block_v2("ml_hold", 4)
    t = S._format_funnel_v2({"swing": 0})
    assert "BUY 0건" in t and "ml_hold" in t