"""826-1 층 목록 요약 색인 — 답 = 다시 셈한 것 · 자국 같으면 항목 파일 안 엶 · 고침 · 지움 · 더함 ·
참조 고침 · M01 값 바뀜 · 색인 깨짐 뒤에도 맞음 · 판 충돌(409) 그대로."""

from __future__ import annotations

import json
import shutil
from pathlib import Path

import pytest

from M01_MasterData import M01_MasterData_Store as m01
from M02_MasterTemplete import M02_Labor_Ref as refs
from M02_MasterTemplete import M02_Layer_Index as index
from M02_MasterTemplete import M02_MasterTemplete_Store as store
from M02_MasterTemplete import M02_Template_Layers as layers
from resources.tester.test_m02_labor_ref import COMPANY, world  # noqa: F401 — 같은 임시 층

PCT = "GC001109"  # 원/㎡ · 인력 둘 + 덧줄 %
WAGE = "LB000001"
LIB = ("sangeun", "precombo", "labor")


@pytest.fixture()
def fresh(world, monkeypatch):  # noqa: F811
    """색인 기억 비움 — 시험끼리 안 섞임."""
    monkeypatch.setattr(index, "_MEM", {})
    monkeypatch.setattr(index, "_IDS_LOADED", [])
    monkeypatch.setattr(refs, "_IDS", {})
    return world


def _forget():
    index._MEM.clear()
    index._IDS_LOADED.clear()
    refs._IDS.clear()


def _sk(folder, name, extra=None):
    doc = {"이름": name, "단위": "㎡", "바탕": {"로직": PCT}, "더한줄": extra or []}
    with store.at(folder):
        return refs.create("sangeun", doc)["이름"]


def _wage_line(qty=1):
    return {"종류": "인력", "요소": WAGE, "이름": "보통인부", "단위": "인", "수량": qty}


def _old(folder):
    rows = layers.list_templates(folder)
    refs.summaries(folder, rows)
    return rows


def _new(folder):
    rows = index.list_rows(folder)
    index.summaries(folder, rows)
    return rows


def _same(folder):
    got = _new(folder)
    assert json.dumps(got, ensure_ascii=False) == json.dumps(_old(folder), ensure_ascii=False)
    return got


@pytest.fixture()
def reads(monkeypatch):
    """항목 파일(서고 · 일위대가) 읽기 수."""
    seen: list[str] = []
    real = Path.read_bytes

    def counting(self):
        if self.parent.name in LIB:
            seen.append(f"{self.parent.name}/{self.stem}")
        return real(self)

    monkeypatch.setattr(Path, "read_bytes", counting)
    return seen


def _shelf(w):
    up = _sk(w["company"], "회사 단가산출")
    mine = w["personal"]
    a = _sk(mine, "가", [_wage_line()])
    b = _sk(mine, "나", [{"참조": {**COMPANY, "키": up}, "수량": 2}])
    with store.at(mine):
        sc = refs.create(
            "precombo",
            {
                "이름": "일위대가",
                "단위": "㎡",
                "담은로직": [{"참조": {**COMPANY, "키": up}, "수량": {"손": 3}}],
            },
        )["이름"]
    return up, a, b, sc


def test_same_and_no_reads_when_stamps_same(fresh, reads):
    up, a, b, sc = _shelf(fresh)
    mine = fresh["personal"]
    first = _same(mine)
    assert {r["이름"] for r in first} >= {a, b, sc} and first[0]["기준금액"] is not None
    reads.clear()
    assert _new(mine) == first and reads == []  # 메모리 기억
    _forget()
    reads.clear()
    assert _new(mine) == first and reads == []  # 디스크 파생 저장본(서버 다시 뜸)
    # 쓰는곳수 — 회사 SK 를 개인 SK 「나」 가 씀(사전조합은 사본으로 펼쳐 담음 · 740-1)
    company = _same(fresh["company"])
    assert company[0]["쓰는곳수"] == 1


def _unfreeze(folder, key):
    """옛 꼴(사본 뗌) — M01 을 지금 값으로 셈(사본 있으면 만든 때 값 그대로)."""
    doc = json.loads(layers.template_path(folder, "sangeun", key).read_bytes())
    old = {k: v for k, v in doc.items() if k not in ("사본", "수식", "M01판", "바탕판")}
    layers.write_template(folder, "sangeun", key, old)


def test_edit_delete_add_and_dep_change(fresh, reads):
    up, a, b, sc = _shelf(fresh)
    mine = fresh["personal"]
    gone = _sk(mine, "지울것")
    _same(mine)
    with store.at(mine):  # 고침 · 지움
        got = store.read("sangeun", a)
        store.write("sangeun", a, got["판"], {**got["문서"], "더한줄": [_wage_line(3)]})
        store.delete("sangeun", gone)
    c = _sk(mine, "다")  # 더함
    reads.clear()
    rows = _new(mine)
    assert set(reads) == {f"sangeun/{a}", f"sangeun/{c}"}  # 바뀐 항목만 다시 읽음
    assert rows == _old(mine)
    titles = {r["이름"]: r.get("제목") for r in rows if r["종류"] in index.layers.LIBRARY_KINDS}
    assert gone == c and titles == {
        a: "가",
        b: "나",
        c: "다",
        sc: "일위대가",
    }  # 지운 키를 새 것이 받음
    reads.clear()
    was = {r["이름"]: r.get("기준금액") for r in _new(mine)}
    assert reads == []
    with store.at(fresh["company"]):  # 사전조합이 담은 위 층 SK 고침 → 그 사전조합만 다시
        got = store.read("sangeun", up)
        store.write("sangeun", up, got["판"], {**got["문서"], "더한줄": [_wage_line(5)]})
    reads.clear()
    now = {r["이름"]: r.get("기준금액") for r in _new(mine)}
    assert set(reads) == {f"precombo/{sc}", f"sangeun/{up}"}
    assert now[sc] != was[sc] and {k: v for k, v in now.items() if k != sc} == {
        k: v for k, v in was.items() if k != sc
    }
    assert _new(mine) == _old(mine)


def test_m01_change_recounts_amount(fresh, tmp_path, monkeypatch):
    copy = tmp_path / "m01"
    copy.mkdir()
    for path in Path(m01.FOLDER).glob("*.json"):
        shutil.copyfile(path, copy / path.name)
    shutil.copytree(Path(m01.FOLDER) / "기계", copy / "기계")  # 기계 = 폴더(826-2)
    monkeypatch.setattr(m01, "FOLDER", copy)
    mine = fresh["personal"]
    a = _sk(mine, "가", [_wage_line()])
    _unfreeze(mine, a)
    one = next(r for r in _same(mine) if r["이름"] == a)["기준금액"]
    assert one is not None
    wages = json.loads((copy / "인력.json").read_text(encoding="utf-8"))
    for row in wages["줄"]:
        if row.get("키") == WAGE:
            row["값"] = float(row["값"]) * 2
    (copy / "인력.json").write_text(json.dumps(wages, ensure_ascii=False), encoding="utf-8")
    two = next(r for r in _same(mine) if r["이름"] == a)["기준금액"]
    assert two != one


def test_broken_index_rebuilds(fresh):
    _up, _a, _b, _sc = _shelf(fresh)
    mine = fresh["personal"]
    first = _same(mine)
    folder = index.derived_dir(layers.storage_root(), index.KIND)
    for path in folder.glob("*.json"):
        path.write_text("{깨짐", encoding="utf-8")
    _forget()
    assert _same(mine) == first
    for path in folder.glob("*.json"):
        path.write_text(json.dumps({"key": path.stem, "value": {"sangeun/x": 1}}), encoding="utf-8")
    _forget()
    assert _same(mine) == first
    shutil.rmtree(folder)
    _forget()
    assert _same(mine) == first


def test_version_conflict_still_409(fresh):
    mine = fresh["personal"]
    a = _sk(mine, "가")
    listed = next(r for r in index.list_rows(mine) if r["이름"] == a)["판"]
    path = layers.template_path(mine, "sangeun", a)
    assert listed == layers.version_of(path)
    doc = json.loads(path.read_bytes())
    layers.write_template(
        mine, "sangeun", a, {**doc, "단위": "m"}, version=listed, check_version=True
    )
    with pytest.raises(layers.StaleTemplate):  # 옛 판으로 또 저장
        layers.write_template(mine, "sangeun", a, doc, version=listed, check_version=True)
    fresh_ver = next(r for r in index.list_rows(mine) if r["이름"] == a)["판"]
    assert fresh_ver == layers.version_of(path) != listed