"""Z01 마스터 데이터 라우터 — 읽기 + 기초단가 고치기(2026-09-15 브레인).

  GET /api/master-data/tree                                  갈래 → 파일 → 표
  GET /api/master-data/rows?file=&table=&page=&size=&q=      표 줄(쪽 나누기 · 검색)
  GET /api/master-data/base-prices/{kind}?page=&size=&q=&sort=&desc=  기초단가 한 표(labor|machine|material|oil|rate)
  PUT /api/master-data/base-prices/{kind}/{row_id}           {values:{열:값}} → 덮개에만 씀 · null = 되돌리기
  GET /api/master-data/overrides                             고친 것·원본 바뀐 것·주인 없는 것(서버 정렬)
⚠ 권한은 등록하는 쪽(`main.py` · 랩탑 서브)이 `dependencies=[verify_session, require_system_admin]` 로 붙임.
"""

from __future__ import annotations

from typing import Any, Literal

from fastapi import APIRouter, Depends, HTTPException
from fastapi.responses import JSONResponse
from pydantic import BaseModel

from common_util.common_util_auth import verify_session
from Z01_MasterData import Z01_MasterData_BasePrices as base_prices
from Z01_MasterData import Z01_MasterData_Tables as tables

router = APIRouter(prefix="/api/master-data", tags=["Z01 MasterData"])


class BasePriceEdit(BaseModel):
    values: dict[str, Any]


@router.get("/tree")
def get_tree() -> dict:
    return tables.tree()


@router.get("/rows")
def get_rows(
    file: str, table: str, page: int = 1, size: int = tables.DEFAULT_PAGE_SIZE, q: str = ""
) -> dict:
    result = tables.rows(file, table, page=page, size=size, q=q)
    if result is None:
        raise HTTPException(status_code=404, detail="없는 파일이나 표입니다.")
    return result


def _kind(kind: str) -> str:
    if kind not in base_prices.KINDS:
        raise HTTPException(status_code=404, detail=f"없는 기초단가: {kind}")
    return kind


@router.get("/base-prices/{kind}")
def get_base_prices(
    kind: str,
    page: int = 1,
    size: int = tables.DEFAULT_PAGE_SIZE,
    q: str = "",
    sort: str = "",
    desc: int = 0,
) -> dict:
    try:
        return base_prices.table(_kind(kind), page=page, size=size, q=q, sort=sort, desc=bool(desc))
    except base_prices.SortError as error:
        raise HTTPException(status_code=400, detail=str(error)) from error


@router.put("/base-prices/{kind}/{row_id:path}")
def put_base_price(
    kind: str, row_id: str, body: BasePriceEdit, session: dict = Depends(verify_session)
) -> JSONResponse:
    status, payload = base_prices.edit(_kind(kind), row_id, body.values, session.get("user_id"))
    if status != 200:
        raise HTTPException(status_code=status, detail=payload["message"])
    return JSONResponse(content=payload)


@router.get("/overrides")
def get_overrides(
    kind: str = "", state: str = "", page: int = 1, size: int = tables.DEFAULT_PAGE_SIZE
) -> dict:
    return base_prices.override_items(kind and _kind(kind), state, page=page, size=size)


class OverrideClear(BaseModel):
    kind: str
    state: Literal["edited", "source_changed", "orphan"]


@router.post("/overrides/clear")
def clear_overrides(body: OverrideClear, _session: dict = Depends(verify_session)) -> dict:
    """한 kind 의 그 state 덮개를 한꺼번에 뺌 — kind·state 둘 다 있어야 함(통째로 비우기 막음)."""
    return {"removed": base_prices.clear_overrides(_kind(body.kind), body.state)}