"""M02 일위대가 계산 · 알약 길(PLAN 39-1a · 설계_정함 1장) — `/api/m02/layers/{층}/labor/{열}/…`.

문서 읽기 · 쓰기는 양식 길(`GET/PUT /api/m02/layers/{층}/templates/labor/{열}`) 그대로 ·
여기는 저장하지 않는 셈만 + 서고(단가승격 · 사전조합 · 50-3) 새로 · 복사(키는 서버가 줌 · 고침 ·
지우기는 양식 길 그대로). 층 권한 = `Router_Items._root`(`M02_Layer_Access` 한 벌).
⚠ 등록은 `main.py`(로그인만).
"""

from __future__ import annotations

from typing import Any, Literal

from fastapi import APIRouter, Depends, HTTPException
from pydantic import BaseModel

from common_util.common_util_auth import verify_session
from M02_MasterTemplete import M02_Labor_Doc as labor
from M02_MasterTemplete import M02_Labor_Ref as refs
from M02_MasterTemplete import M02_Layer_Access as access
from M02_MasterTemplete import M02_MasterTemplete_Store as store
from M02_MasterTemplete.M02_MasterTemplete_Router_Items import Layer, Session, _call, _root

router = APIRouter(prefix="/api/m02", tags=["M02 MasterTemplete Labor"])


class CalcBody(BaseModel):
    """`doc` = 저장 전 화면 문서(없으면 저장본) · `수량` = {알약 키: 값}(없으면 저장된 면적산출)."""

    doc: dict[str, Any] | None = None
    수량: dict[str, Any] | None = None


def _doc(column: str, sent: dict[str, Any] | None) -> dict[str, Any]:
    got = sent if sent is not None else store.read("labor", column)["문서"]
    return labor.clean({**got, "열": column})


def _calc(column: str, body: CalcBody) -> dict[str, Any]:
    doc = _doc(column, body.doc)
    return {**labor.calc(doc, body.수량), "알약": labor.pills(doc)}


def _pills(column: str) -> dict[str, Any]:
    return {"열": column, "알약": labor.pills(_doc(column, None))}


@router.post("/layers/{layer}/labor/{column}/calc")
def calc_labor(
    layer: Layer,
    column: str,
    body: CalcBody,
    owner: str | None = None,
    session: Session = Depends(verify_session),
) -> dict:
    """줄마다 기준 · 반영 · 합 + 알약(저장 안 함 · 화면은 최신 응답만)."""
    return _call(_root(session, layer, owner), _calc, column, body)


@router.get("/layers/{layer}/labor/{column}/pills")
def labor_pills(
    layer: Layer,
    column: str,
    owner: str | None = None,
    session: Session = Depends(verify_session),
) -> dict:
    """면적산출 알약 — 로직 물량 알약 「이름|단위」 + 자재 알약 「자재|MT키」(저장본)."""
    return _call(_root(session, layer, owner), _pills, column)


class LibraryBody(BaseModel):
    """새로 = `문서` · 복사 = `본뜬` {층, 주인, 키}(원본 읽기 권한 · 못 읽는 참조는 같이 복사)."""

    문서: dict[str, Any] | None = None
    본뜬: dict[str, Any] | None = None


def _copy(kind: str, doc: dict[str, Any], source: refs.Here, ref: dict) -> dict[str, Any]:
    return refs.create(kind, refs.carry({**doc, "본뜬": ref}, source))


@router.post("/layers/{layer}/library/{kind}")
def new_library(
    layer: Layer,
    kind: Literal["promote", "precombo"],
    body: LibraryBody,
    owner: str | None = None,
    session: Session = Depends(verify_session),
) -> dict:
    """서고 새로 · 복사 — 키는 서버가 그 층 다음 번호(SP · SC) · 답 `이름` = 새 키."""
    folder = _root(session, layer, owner, write=True)
    if body.본뜬 is None:
        return _call(folder, refs.create, kind, body.문서 or {})
    src = body.본뜬
    if src.get("층") not in ("system", "company", "personal"):
        raise HTTPException(status_code=400, detail="본뜬 층이 틀림")
    got = access.grant(session, src["층"], src.get("주인"))  # 원본 읽기 권한
    ref = {"층": got.layer, "주인": got.owner, "키": str(src.get("키") or "")}
    if refs.kind_of(ref["키"]) != kind:
        raise HTTPException(status_code=400, detail="본뜬 종류가 틀림")
    doc = refs.read_ref(ref) if refs._KEY.match(ref["키"]) else None
    if doc is None:
        raise HTTPException(status_code=404, detail=f"없는 {refs.TITLE[kind]} 「{ref['키']}」")
    return _call(folder, _copy, kind, doc, (got.layer, got.owner), ref)