"""PLAN 472 덧 (요구 272) — [저장] · [확정] 재계산이 종단 경고를 저장 입력으로 다시 씀.

증상 — 검증_랩탑메인 정본 종단 경고 5 줄(10-17 옛 코드) · 지금 코드로 셈하면 50 줄 ·
[저장] · [확정] 재계산(`B06_Section_Server_Calc_Prebuild._recompute`)이 경고를 다시 안 셈.
고침 — `_recompute` 맨 앞 `_refresh_alignment_file` → `refresh_alignment`(저장 base_pvi · 편집 ·
정책 · 기준 → `rebuild_alignment_profile` 의 경고만) · 기하는 저장값 그대로 · 같으면 안 씀.
경고 글 = TS `buildAlignment` 와 한 벌(거울). 고정 자료 = `fixtures/golden_472/detail.json`.

    ./venv/Scripts/python.exe -m pytest resources/tester/test_472_save_warnings.py -q
"""

from __future__ import annotations

import copy
import inspect
import json
import subprocess
import sys
from pathlib import Path

HERE = Path(__file__).resolve().parent
ROOT = HERE.parents[1]
sys.path.insert(0, str(ROOT))

from B05_Profile.B05_Profile_Engine_Grade import ground_profile  # noqa: E402
from B05_Profile.B05_Profile_Engine_Grade_Alignment import chainage_key  # noqa: E402
from B05_Profile.B05_Profile_Engine_Grade_Profile import rebuild_alignment_profile  # noqa: E402
from B06_Section import B06_Section_Server_Calc_Prebuild as prebuild  # noqa: E402

FIXTURE = HERE / "fixtures" / "golden_472"
DETAIL = json.loads((FIXTURE / "detail.json").read_text(encoding="utf-8"))


def _longitudinal() -> dict:
    return copy.deepcopy(DETAIL["longitudinal"])


def test_정본_경고는_옛_코드_5줄() -> None:
    assert len(DETAIL["longitudinal"]["profile_alignment"]["warnings"]) == 5


def test_다시_셈_경고만_새로_기하는_그대로() -> None:
    longitudinal = _longitudinal()
    before = copy.deepcopy(longitudinal)
    summary = prebuild.refresh_alignment(longitudinal)
    warnings = longitudinal["profile_alignment"]["warnings"]
    assert len(warnings) == 50
    assert sum("법정 최소 R" in w for w in warnings) == 46  # 432 법정 R · L 미달
    assert not [w for w in warnings if w.startswith("chainage ")]
    assert summary is not None and summary["warnings"] == warnings
    assert summary["id"] == before["design_profiles"][0]["id"]
    assert longitudinal["design_profiles"][0]["summary"]["warnings"] == warnings
    # 경고 밖 = 저장값 그대로(계획고 · 곡선 · 표본 · 위반 · 정책 — 6 자리 반올림 끝자리도)
    longitudinal["profile_alignment"]["warnings"] = before["profile_alignment"]["warnings"]
    longitudinal["design_profiles"][0]["summary"]["warnings"] = before["design_profiles"][0][
        "summary"
    ]["warnings"]
    assert longitudinal == before


def test_선형_없는_옛_종단은_그대로() -> None:
    longitudinal = _longitudinal()
    longitudinal["profile_alignment"].pop("base_pvi")
    keep = copy.deepcopy(longitudinal)
    assert prebuild.refresh_alignment(longitudinal) is None
    assert longitudinal == keep


def test_파일_다시_씀_같으면_안_씀(tmp_path) -> None:
    path = tmp_path / "B06_Section" / "longitudinal" / "longitudinal.json"
    path.parent.mkdir(parents=True)
    path.write_text(json.dumps(_longitudinal()), encoding="utf-8")
    relative = "B06_Section/longitudinal/longitudinal.json"
    first = prebuild._refresh_alignment_file(tmp_path, relative)
    stored = json.loads(path.read_text(encoding="utf-8"))
    assert first is not None and len(stored["profile_alignment"]["warnings"]) == 50
    written = path.stat().st_mtime_ns
    assert prebuild._refresh_alignment_file(tmp_path, relative) == first
    assert path.stat().st_mtime_ns == written  # 같은 값 — 다시 안 씀
    assert prebuild._refresh_alignment_file(tmp_path, "없음/longitudinal.json") is None


def test_재계산_맨_앞에서_선형_다시_셈() -> None:
    source = inspect.getsource(prebuild._recompute)
    assert "_refresh_alignment_file" in source and "update_longitudinal_grade_summary" in source
    assert source.index("_refresh_alignment_file") < source.index("get_section_detail(")


def test_TS_거울_같은_경고_목록(tmp_path) -> None:
    longitudinal = _longitudinal()
    alignment = longitudinal["profile_alignment"]
    # 옛 정책엔 법정 R · L 이 없음 — 두 쪽 다 기준으로 채운 정책(433-13 · TS `readAlignment`)
    policy = rebuild_alignment_profile(longitudinal, alignment["edits"])[0]["policy"]
    assert (
        policy["min_vertical_radius_m"] == 100.0
        and "min_vertical_radius_m" not in alignment["policy"]
    )
    chainage, ground = ground_profile(longitudinal)
    curve = alignment["curves"][1]
    station = longitudinal["stations"][5]
    cases = [
        alignment["edits"],
        {"station_offsets": {}, "curve_radii": {chainage_key(curve["chainage_m"]): 500.0}},
        {"station_offsets": {chainage_key(station["chainage_m"]): 3.0}, "curve_radii": {}},
    ]
    base = {
        "policy": policy,
        "onlyExplicitCurves": bool(alignment.get("only_explicit_curves")),
        "basePvi": alignment["base_pvi"],
        "chainage": chainage.tolist(),
        "ground": ground.tolist(),
        "stations": [
            {"station_id": s.get("station_id"), "chainage_m": s["chainage_m"]}
            for s in longitudinal["stations"]
        ],
    }
    source = tmp_path / "in.json"
    source.write_text(json.dumps({"base": base, "cases": cases}), encoding="utf-8")
    proc = subprocess.run(  # noqa: S603 — 고정 실행 파일
        ["node", str(HERE / "helper_472_save_warnings.cjs"), str(source)],
        capture_output=True,
        text=True,
        encoding="utf-8",
        timeout=60,
    )
    assert proc.returncode == 0, proc.stderr
    for edits, got in zip(cases, json.loads(proc.stdout), strict=True):
        py, _profile = rebuild_alignment_profile(copy.deepcopy(longitudinal), edits)
        assert got["warnings"] == py["warnings"]
        assert got["violations"] == len(py["violations"])