"""794-1b — M01 흐름도 걷음 뒤 지킴(마스터 사본 폴더 · 정본 안 바뀜).

못박는 것
  - 흐름 길(`/api/m01/logic/flow` · `/api/m02/df/values` …) 없음 · 남긴 바닥 `GET /api/m02/df/standards` 는 그대로
  - [신규 로직] = 흐름 없는 빈 시트 줄 → `/save` 가 자체 파일 GX 새 키 · 구분 자체 · 셈은 옛 셈
  - 줄에 「흐름」 이 남아 있으면 엔진이 까닭 글로 막음(조용히 틀린 값 안 냄)
"""

from __future__ import annotations

import shutil
from pathlib import Path

import pytest
from fastapi import FastAPI
from fastapi.testclient import TestClient

from M01_MasterData import M01_MasterData_Router as m01_router
from M01_MasterData import M01_MasterData_Store as store
from M02_MasterTemplete.DataFlow import M02_DF_Router as df

REAL = store.FOLDER
OWN = "로직_자체.json"


@pytest.fixture
def client(tmp_path: Path, monkeypatch) -> TestClient:
    master = tmp_path / "master"
    master.mkdir()
    for path in REAL.glob("*.json"):
        shutil.copy(path, master / path.name)
    monkeypatch.setattr(store, "FOLDER", master)
    app = FastAPI()
    app.include_router(m01_router.router)
    app.include_router(df.router)
    return TestClient(app)


def test_흐름_길은_없고_표준_표는_남음(client: TestClient) -> None:
    assert client.get("/api/m01/logic/flow", params={"key": "GF000219"}).status_code == 404
    assert client.post("/api/m02/df/values", json={"items": []}).status_code == 404
    got = client.get("/api/m02/df/standards").json()
    assert got["unit"]["줄"] and got["money"]["줄"]


def test_신규_로직은_시트_줄로_자체_GX(client: TestClient) -> None:
    version = store.read(OWN)[1] if (store.FOLDER / OWN).is_file() else ""
    row = {
        "키": "",
        "이름": "sub3임시 새 로직",
        "결과단위": "원/㎡",
        "출처": "자체",
        "입력": [],
        "중간": [],
        "호표": [],
        "끝수": None,
    }
    part = {"file": OWN, "version": version, "changes": [{"op": "add", "row": row}]}
    res = client.post("/api/m01/save", json={"files": [part]})
    assert res.status_code == 200, res.text
    added = res.json()["added"]
    assert len(added) == 1 and added[0]["key"].startswith("GX")
    saved = client.get("/api/m01/logic", params={"key": added[0]["key"]}).json()["logic"]
    assert saved["구분"] == "자체" and saved["이름"] == "sub3임시 새 로직" and "흐름" not in saved


def test_흐름이_남은_줄은_까닭으로_막음() -> None:
    mf = store.cm.mf
    with pytest.raises(mf.FormulaError, match="흐름도 로직은 걷음"):
        mf.inputs_of({"흐름": {"boxes": [], "links": []}})