"""실행예산 단계 — 설계 → 실행예산 **구조**가 서는가 (PLAN 12장 · 2026-09-14 브레인 배정).

⚠ 값이 맞는지는 못 잰다 — 실행예산 표본 0건(STmate 27번 §9 · 35번). 여기서 재는 것:
    ① 시간당 실행단가 = 1단위당 사용료 ÷ 시간 → 설계 성분 비율 → 성분마다 절사 → 차액 보정
    ② 「기본보정」은 뜻 미확인 — 차액을 안 몰고 남김
    ③ 중기(X)를 갈아 끼운 **복사본**으로 일위대가 다시 조립 · 설계 단가표·입력 줄 불변
    ④ 실행수량 · 조립값과 다른 줄은 설계 단가 + 까닭 · 묶음 줄 합 · 틀린 칸 거름
"""

from __future__ import annotations

import copy
import sys
from decimal import Decimal
from pathlib import Path

ROOT = Path(__file__).resolve().parents[2]
sys.path.insert(0, str(ROOT))

from B09_Estimation.B09_Estimation_Execution import (  # noqa: E402
    clean_settings,
    execution_bill,
    execution_hourly,
)
from B09_Estimation.B09_Estimation_PriceBook import (  # noqa: E402
    Money3,
    PriceBook,
    PriceDetail,
    PriceKind,
    PriceTitle,
)
from B09_Estimation.B09_Estimation_UnitPrice import UnitPriceBuild  # noqa: E402

DESIGN_X = Money3(material=Decimal(2000), labor=Decimal(3000), expense=Decimal(1500))


def _parts(money: Money3) -> tuple[str, str, str]:
    return (str(money.material), str(money.labor), str(money.expense))


def test_시간당_실행단가를_설계_성분_비율로_가르고_차액을_고른_비목에() -> None:
    # 80,000원/일 ÷ 8시간 = 10,000 · 비율 2000:3000:1500 → 3076.9 / 4615.3 / 2307.6 → 절사 합 9,998
    money, diff, note = execution_hourly(DESIGN_X, Decimal(80000), Decimal(8), Decimal(1), "labor")
    assert _parts(money) == ("3076", "4617", "2307") and diff == 2 and "노무비" in note
    money, _, _ = execution_hourly(DESIGN_X, Decimal(80000), Decimal(8), Decimal(100), "expense")
    assert _parts(money) == ("3000", "4600", "2400")  # 100원 미만 절사 · 차액 100 → 경비


def test_기본보정은_뜻_미확인이라_차액을_남긴다() -> None:
    money, diff, note = execution_hourly(DESIGN_X, Decimal(80000), Decimal(8), Decimal(1), "basic")
    assert money.total == 9998 and diff == 2 and "기본보정" in note


def _build() -> UnitPriceBuild:
    """중기 X-G(연료 2 · 운전원 1 · 취득가 0.0003) · B-T(X-G 0.5 + 노임 1) · B-N(연료만)."""
    book = PriceBook()
    for code, kind, price in (
        ("M-F", PriceKind.MATERIAL, "1000"),
        ("L-O", PriceKind.LABOR, "3000"),
        ("L-B", PriceKind.LABOR, "2000"),
        ("S-G", PriceKind.MACHINE_BASE, "5000000"),
    ):
        slots = [None] * 6
        slots[5] = Decimal(price)
        book.add_title(PriceTitle(code=code, kind=kind, name=code, slots=slots))
    book.add_title(PriceTitle(code="X-G", kind=PriceKind.MACHINE_HOURLY, name="굴삭기"))
    book.add_title(PriceTitle(code="B-T", kind=PriceKind.UNIT_PRICE, name="흙깎기"))
    book.add_title(PriceTitle(code="B-N", kind=PriceKind.UNIT_PRICE, name="자재만"))
    for parent, ref, qty in (
        ("X-G", "M-F", "2"),
        ("X-G", "L-O", "1"),
        ("X-G", "S-G", "0.0003"),
        ("B-T", "X-G", "0.5"),
        ("B-T", "L-B", "1"),
        ("B-N", "M-F", "1"),
    ):
        book.add_detail(PriceDetail(parent, ref, Decimal(qty)))
    return UnitPriceBuild(book=book)


def _line(item_no: str, code: str, unit: tuple[str, str, str], qty: str = "3") -> dict:
    return {
        "item_no": item_no,
        "is_group": False,
        "in_bill": True,
        "quantity": qty,
        "price_code": code,
        "unit_material_krw": unit[0],
        "unit_labor_krw": unit[1],
        "unit_expense_krw": unit[2],
    }


ROWS = [
    {"item_no": "2", "is_group": True, "in_bill": True},
    _line("2.1", "B-T", ("1000", "3500", "750")),  # 설계 = 조립값
    _line("2.2", "B-N", ("1000", "0", "0")),  # 중기 없음
    _line("2.3", "B-T", ("1200", "3500", "750")),  # 수동 단가 — 조립값과 다름
]
SETTINGS = {
    "machines": {
        "X-G": {
            "unit_price_krw": "80000",
            "hours_per_unit": "8",
            "cut_unit_krw": "1",
            "correction": "labor",
        }
    },
    "quantities": {"2.2": "5"},
}


def test_중기를_갈아_끼운_복사본으로_다시_조립하고_설계는_그대로() -> None:
    build = _build()
    before = (build.book.resolve("X-G"), build.book.resolve("B-T"), len(build.book.titles))
    rows_before = copy.deepcopy(ROWS)
    result = execution_bill(ROWS, clean_settings(SETTINGS)[0], build=build)
    assert (build.book.resolve("X-G"), build.book.resolve("B-T"), len(build.book.titles)) == before
    assert ROWS == rows_before
    rows = {row["item_no"]: row for row in result["rows"]}
    # X-G 실행 3076/4617/2307 × 0.5 = 1538 / 2308.5 / 1153.5 + 노임 2000 → 원 미만 절사
    assert (
        rows["2.1"]["execution_unit_material_krw"],
        rows["2.1"]["execution_unit_labor_krw"],
        rows["2.1"]["execution_unit_expense_krw"],
    ) == ("1538", "4308", "1153")
    assert "X-G" in rows["2.1"]["execution_note"]
    machine = result["machines"][0]
    assert machine["code"] == "X-G" and machine["execution"]["total_krw"] == "10000"
    assert machine["design"]["total_krw"] == "6500"


def test_실행수량과_중기_없는_줄() -> None:
    rows = {r["item_no"]: r for r in execution_bill(ROWS, SETTINGS, build=_build())["rows"]}
    assert (
        rows["2.2"]["execution_quantity"] == "5" and rows["2.2"]["execution_amount_krw"] == "5000"
    )
    assert rows["2.2"]["execution_note"] == "" and rows["2.1"]["execution_quantity"] == "3"


def test_조립값과_다른_줄은_설계_단가와_까닭() -> None:
    row = execution_bill(ROWS, SETTINGS, build=_build())["rows"][3]
    assert row["execution_unit_material_krw"] == "1200" and "못 얹음" in row["execution_note"]


def test_설정이_없으면_설계와_같고_묶음_줄_합() -> None:
    result = execution_bill(ROWS, {}, build=_build())
    assert result["totals"]["design"] == result["totals"]["execution"]
    group = result["rows"][0]
    children = [r for r in result["rows"] if not r.get("is_group")]
    assert Decimal(group["execution_amount_krw"]) == sum(
        Decimal(r["execution_amount_krw"]) for r in children
    )


def test_틀린_칸은_거른다() -> None:
    cleaned, errors = clean_settings(
        {
            "machines": {
                "X-A": {"unit_price_krw": ""},
                "X-B": {"unit_price_krw": "100", "hours_per_unit": "0"},
                "X-C": {"unit_price_krw": "100", "hours_per_unit": "8", "cut_unit_krw": "7"},
            },
            "quantities": {"1.1": "-1", "1.2": ""},
        }
    )
    assert len(errors) == 2 and list(cleaned["machines"]) == ["X-C"]
    assert cleaned["machines"]["X-C"]["cut_unit_krw"] == "1" and cleaned["quantities"] == {}