"""단위 · 금액 표준 표 읽기 — `GET /api/m02/df/standards` → {unit, money, saved}.

부르는 곳 = 단위 고르기(`M02_DF_UnitPick.ts`) · 끝수 표준(`M02_DF_Round.ts`).
표 = `_standard/` 파일(git 이 따라감) · 권한 = 로그인만(읽기만 · `main.py` 한 줄 · M02 줄 쌓기 단위 고르기).
"""

from __future__ import annotations

from pathlib import Path

from fastapi import APIRouter, HTTPException

from M01_MasterData import M01_MasterData_Store as store
from M01_MasterData.M01_MasterData_Router import _num
from M02_MasterTemplete.DataFlow import M02_DF_Values as dv

router = APIRouter(prefix="/api/m02/df", tags=["M02 DataFlow"])

STANDARD = Path(__file__).resolve().parent / "_standard"


@router.get("/standards")
def get_standards() -> dict:
    try:
        return _num(dv.standards(STANDARD))
    except store.StoreError as e:
        raise HTTPException(status_code=e.status, detail=e.detail) from e