"""M02 일위대가 조합 층 API(PLAN 27-2a) — `/api/m02/layers/{layer}/combos`(옛 `/api/m01/combo*`).

⚠ 등록은 `main.py`(로그인만) · 층 권한은 `M02_Layer_Access`(`Router_Items._root`) 한 규칙:
    system    읽기 = 로그인 누구나 · 쓰기 = 시스템 관리자(마스터 조합 · 키 UA)
    company   읽기 = 같은 회사 · 쓰기 = 회사 관리자(키 UC{회사}-######)
    personal  읽기 · 쓰기 = 본인(키 UP{사용자}-######)
저장소 = `M02_MasterTemplete_Combo_Store`.
담을 로직 고르기 · 미리 보기가 읽는 단가산출 로직(M01 길은 시스템 관리자 전용)은
`/api/m02/logic-lib/…` 읽기만(로그인) — 모양은 M01 길과 같음.
"""

from __future__ import annotations

from typing import Any

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

from common_util.common_util_auth import verify_session
from M01_MasterData import M01_MasterData_Store as m01
from M02_MasterTemplete import M02_Layer_Access as access
from M02_MasterTemplete import M02_MasterTemplete_Combo_Copy as combo_copy
from M02_MasterTemplete import M02_MasterTemplete_Combo_Store as combos
from M02_MasterTemplete.M02_MasterTemplete_Router_Items import Layer, Session, _call, _root

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


class ComboBody(BaseModel):
    combo: dict[str, Any]
    판: str | None = None  # 새로 만들 때 빈 글 = 지금 판 · 고칠 때 어긋나면 409


class ComboTreeBody(BaseModel):
    """`{op: add-folder|rename|move|delete, 경로?, 이름?, 새경로?, 키?, 판}` — 폴더 깊이 2."""

    op: str
    경로: list[str] | None = None
    이름: str | None = None
    새경로: list[str] | None = None
    키: str | None = None
    판: str


class TreeManyBody(BaseModel):
    """여러 개 옮기기 · 지우기(PLAN 30-3) — `ops` = 나무 고침(`ComboTreeBody` 모양) · 저장 한 번."""

    판: str
    ops: list[dict[str, Any]]


class PasteBody(BaseModel):
    """층 사이 복사(PLAN 30-3) — 원본 층(`from_layer` · `from_owner`)의 조합 `키` · 폴더 `폴더` →
    이 층 `경로` 폴더에 새 키로. `판` = 이 층 조합 표 판."""

    from_layer: Layer
    from_owner: str | None = None
    키: list[str] = []
    폴더: list[list[str]] = []
    경로: list[str] = []
    판: str = ""


class PreviewBody(BaseModel):
    """저장 전 미리 보기 — `combo` 는 조합 줄 통째 또는 그 층 키 · `inputs` 는 로직마다."""

    combo: dict[str, Any] | str
    inputs: dict[str, dict[str, Any]] = {}


@router.get("/combos/all")
def get_all(session: Session = Depends(verify_session)) -> list[dict]:
    """고르기(use-combo · 갈라 내기) — 세 층 `[{layer, owner, 판, 폴더, 줄}]` · 회사 없음 빈 층."""
    out = []
    for layer in ("system", "company", "personal"):
        who = None if layer == "system" else access.own_owner(session, layer)
        if layer != "system" and who is None:
            out.append({"layer": layer, "owner": None, "판": "", "폴더": [], "줄": []})
            continue
        got = _call(_root(session, layer, who), combos.listing)
        out.append({"layer": layer, "owner": who, **got})
    return out


def _where(key: str) -> tuple[str, str | None]:
    got = combos.where(key)
    if got is None:
        raise HTTPException(status_code=404, detail=f"없는 조합 「{key}」")
    return got


@router.get("/combos/key/{key}")
def get_by_key(key: str, session: Session = Depends(verify_session)) -> dict:
    """키 하나(어느 층이든 · 그 층 읽기 권한) — `{layer, owner, 판, combo, 줄, …}`."""
    layer, owner = _where(key)
    return {"layer": layer, "owner": owner, **_call(_root(session, layer, owner), combos.one, key)}


@router.get("/combos/key/{key}/inputs")
def get_inputs_by_key(key: str, session: Session = Depends(verify_session)) -> dict:
    """조합 알약(어느 층이든) — 구조물 조합 면적산출 연결이 부름."""
    layer, owner = _where(key)
    return _call(_root(session, layer, owner), combos.pills, key)


@router.get("/layers/{layer}/combos")
def get_combos(layer: Layer, owner: str | None = None, session: Session = Depends(verify_session)):
    return _call(_root(session, layer, owner), combos.listing)


@router.get("/layers/{layer}/combos/{key}")
def get_combo(
    layer: Layer, key: str, owner: str | None = None, session: Session = Depends(verify_session)
):
    return _call(_root(session, layer, owner), combos.one, key)


@router.get("/layers/{layer}/combos/{key}/inputs")
def get_combo_inputs(
    layer: Layer, key: str, owner: str | None = None, session: Session = Depends(verify_session)
):
    """조합 알약 — 담은 로직 결과단위 분모마다 물량 하나(M02 면적산출이 받음)."""
    return _call(_root(session, layer, owner), combos.pills, key)


@router.post("/layers/{layer}/combos")
def post_combo(
    layer: Layer,
    body: ComboBody,
    owner: str | None = None,
    session: Session = Depends(verify_session),
):
    folder = _root(session, layer, owner, write=True)
    return _call(folder, combos.create, body.combo, body.판 or None)


@router.put("/layers/{layer}/combos/{key}")
def put_combo(
    layer: Layer,
    key: str,
    body: ComboBody,
    owner: str | None = None,
    session: Session = Depends(verify_session),
):
    folder = _root(session, layer, owner, write=True)
    return _call(folder, combos.edit, key, body.combo, body.판 or "")


@router.delete("/layers/{layer}/combos/{key}")
def delete_combo(
    layer: Layer,
    key: str,
    판: str = "",
    owner: str | None = None,
    session: Session = Depends(verify_session),
):
    return _call(_root(session, layer, owner, write=True), combos.delete, key, 판)


@router.post("/layers/{layer}/combos/tree")
def post_tree(
    layer: Layer,
    body: ComboTreeBody,
    owner: str | None = None,
    session: Session = Depends(verify_session),
):
    folder = _root(session, layer, owner, write=True)
    return _call(folder, combos.edit_tree, body.model_dump())


@router.post("/layers/{layer}/combos/tree-many")
def post_tree_many(
    layer: Layer,
    body: TreeManyBody,
    owner: str | None = None,
    session: Session = Depends(verify_session),
):
    folder = _root(session, layer, owner, write=True)
    return _call(folder, combos.edit_tree_many, body.model_dump())


@router.post("/layers/{layer}/combos/paste")
def post_paste(
    layer: Layer,
    body: PasteBody,
    owner: str | None = None,
    session: Session = Depends(verify_session),
):
    """원본 층 읽기 권한 · 이 층 쓰기 권한(M02_Layer_Access) — 마스터 붙이기 = 시스템 관리자."""
    source = _call(_root(session, body.from_layer, body.from_owner), lambda: combos._load()[0])
    folder = _root(session, layer, owner, write=True)
    return _call(folder, combo_copy.paste, source, body.model_dump())


@router.post("/layers/{layer}/combos/preview")
def post_preview(
    layer: Layer,
    body: PreviewBody,
    owner: str | None = None,
    session: Session = Depends(verify_session),
):
    """보기만 — 수량(inputs)은 이 부름에만 실림 · 저장 안 함 · 읽기 권한."""
    return _call(_root(session, layer, owner), combos.preview, body.combo, body.inputs)


# ── 담을 로직(읽기만) — M01 `/logics` · `/subs?group=로직` · `/logic` · `/logic/auto` 모양 ──
def _read(fn, *args):
    try:
        return fn(*args)
    except m01.StoreError as e:
        raise HTTPException(status_code=e.status, detail=e.detail) from e


@router.get("/logic-lib/logics", dependencies=[Depends(verify_session)])
def get_logics() -> dict:
    return {"logics": _read(m01.logics, "", "", "", None)}


@router.get("/logic-lib/subs", dependencies=[Depends(verify_session)])
def get_logic_subs() -> dict:
    return _read(m01.subs, "", "로직")


@router.get("/logic-lib/logic", dependencies=[Depends(verify_session)])
def get_logic(key: str) -> dict:
    return _read(m01.logic, key)


@router.get("/logic-lib/auto", dependencies=[Depends(verify_session)])
def get_logic_auto(key: str) -> dict:
    """견본 입력 — 미리 보기용 자동값."""
    return _read(m01.auto, key)