"""B09 원가계산 길(PLAN 144 · 145) — 결과는 저장하지 않고 GET 때 서버가 셈(B08 꼴).

    GET  /api/projects/{id}/estimation
        입력(굳힌 단가 · 수요 · B08 수량) + 사용자 값 → 표 전부
    PUT  /api/projects/{id}/estimation   {user}
        [저장] — 사용자 값 · 책에 없는 새 단가 줄만 굳힘 → 서버가 정본으로 다시 셈
    POST /api/projects/{id}/estimation/prices
        [단가 갱신] — 수요 단가 전부를 지금 M01 값으로 새로 굳힘

저장 자리 = 프로젝트 안 `B09_Estimation/v1/`(`B09_Estimation_Store`) ·
단가 = `B09_Estimation_Prices` ·
수요 = `B09_Estimation_Linked`(연결된 사본) · 셈 = `B09_Estimation_Calc_*`(화면 짝과 같은 식).
"""

from __future__ import annotations

import asyncio
from pathlib import Path
from typing import Any
from uuid import UUID

from fastapi import APIRouter, Body

from B08_Quantity.B08_Quantity_Router_Earthwork import earthwork_table
from B08_Quantity.B08_Quantity_Router_Hydro import _project_root
from B08_Quantity.B08_Quantity_Router_Material import material_sheets
from B09_Estimation import B09_Estimation_Prices as prices
from B09_Estimation import B09_Estimation_Store as store
from B09_Estimation.B09_Estimation_Bill_Items import bill_items, hopyo_prices
from B09_Estimation.B09_Estimation_Calc_Bill import compute_estimation
from B09_Estimation.B09_Estimation_Linked import linked_resource_keys
from B09_Estimation.B09_Estimation_Summary import compute_summary, hopyo_lines

router = APIRouter(prefix="/api/projects", tags=["B09 Estimation"])


async def _b08(project_id: UUID, notes: list[str]) -> dict[str, Any]:
    """B08 수량 원천 — 못 읽으면 빈칸 + 알림(B09 는 B08 를 고치지 않음)."""
    out: dict[str, Any] = {}
    for key, name, read in (
        ("materials", "자재 집계표", material_sheets),
        ("earthwork", "토공집계표", earthwork_table),
    ):
        try:
            out[key] = await read(project_id)
        except Exception as error:  # noqa: BLE001 — 원천 하나가 막혀도 나머지 표는 그림
            notes.append(f"B08 {name} 못 읽음 — {getattr(error, 'detail', error)}")
            out[key] = None
    # 구조물 집계표 = 자재 집계표가 이미 부른 값(열 · 계 · 조합) — 두 번 안 부름
    out["summary"] = (out["materials"] or {}).get("source")
    return out


async def payload(project_id: UUID, root: Path) -> dict[str, Any]:
    notes: list[str] = []
    b08 = await _b08(project_id, notes)
    keys = await asyncio.to_thread(linked_resource_keys, root)
    if not keys:
        notes.append(
            "연결된 구조물 조합 사본 없음 — 노무 · 경비 · 중기 단가 줄은 사본이 연결되면 생김"
        )
    book = await asyncio.to_thread(store.read_book, root)
    inputs = await asyncio.to_thread(prices.build_inputs, book, keys, b08["materials"])
    inputs["bill"] = bill_items(b08)
    inputs["hopyo"] = hopyo_prices(root)
    user = await asyncio.to_thread(store.read_user, root)
    return {
        "inputs": inputs,
        "user": user,
        "book": {"made": book.get("made")} if book else None,
        "sheets": compute_estimation(inputs, user),
        "notes": notes,
        # 집계표 넷 = 서버 단독(145-5) — 짝 셈 결과를 역전개 · 조작 중엔 안 바뀜
        "summary": compute_summary(compute_estimation(inputs, user), hopyo_lines(root)),
    }


@router.get("/{project_id}/estimation")
async def estimation(project_id: UUID) -> dict[str, Any]:
    root = await _project_root(project_id)
    return await payload(project_id, root)


@router.put("/{project_id}/estimation")
async def save_estimation(project_id: UUID, body: dict[str, Any] = Body(...)) -> dict[str, Any]:
    root = await _project_root(project_id)
    await asyncio.to_thread(store.write_user, root, body.get("user"))
    keys = await asyncio.to_thread(linked_resource_keys, root)
    book = await asyncio.to_thread(store.read_book, root)
    book = await asyncio.to_thread(prices.extend_book, book, keys)
    await asyncio.to_thread(store.write_book, root, book)
    return await payload(project_id, root)


@router.post("/{project_id}/estimation/prices")
async def refresh_prices(project_id: UUID) -> dict[str, Any]:
    root = await _project_root(project_id)
    keys = await asyncio.to_thread(linked_resource_keys, root)
    book = await asyncio.to_thread(prices.refresh_book, keys)
    await asyncio.to_thread(store.write_book, root, book)
    return await payload(project_id, root)