# -*- coding: utf-8 -*-
"""355-1 B05 종단 ▲▼ — 누른 점이 꺾임이면 이웃 꺾임을 축으로 사이 직선이 따라 돎(요구 235-15).

계산(`B05_Profile/logic/B05_Profile_UI_Profile_Alignment.ts` adjustStation ·
`_Pivot.ts` pivotAxes)은 Node 헬퍼(`helper_355_1_pivot_tilt.cjs`)가 트랜스파일해 돌리고,
부르는 곳 셋(▲▼ 버튼 · 표 값 입력 · 방향키)이 같은 함수인지는 소스로 본다.
"""

import json
import os
import subprocess
from pathlib import Path

import pytest

HERE = Path(__file__).resolve().parent
ROOT = HERE.parent.parent


def _read(relative: str) -> str:
    return (ROOT / relative).read_text(encoding="utf-8")


@pytest.fixture(scope="module")
def out():
    proc = subprocess.run(
        ["node", os.path.join(HERE, "helper_355_1_pivot_tilt.cjs")],
        capture_output=True,
        text=True,
        encoding="utf-8",
        timeout=60,
    )
    assert proc.returncode == 0, proc.stderr
    return json.loads(proc.stdout)


def test_처음_계획선은_옛_값(out):
    initial = out["initial"]
    assert initial["sameUp"] and initial["sameDown"]
    assert initial["upKeys"] == ["100.000"]
    assert initial["radiiKeys"] == []


def test_꺾임_누르면_사이_측점이_한_직선(out):
    kink = out["kink"]
    assert kink["planRise"] == pytest.approx(0.1, abs=1e-4)
    assert kink["axisMove"] == [0, 0]
    assert kink["outsideMove"] == [0, 0]
    assert all(abs(value) < 1e-6 for value in kink["innerResidual"])
    # 축에서 멀수록 더 오름(40 → 60 → 80 → 100 · 160 → 140 → 120 → 100)
    moved = kink["innerMoved"]
    assert 0 < moved[0] < moved[1] < kink["pivotRise"]
    assert 0 < moved[3] < moved[2] < kink["pivotRise"]
    # 옛 길은 사이 측점이 그대로라 P±1 에서 꺾였음
    assert kink["oldWouldBreak"] == [0, 0]


def test_직선_안쪽은_옛_값(out):
    assert out["inside"]["same"]
    assert out["inside"]["planRise"] == pytest.approx(0.1, abs=1e-4)


def test_부르는_곳_셋이_같은_함수():
    assert "adjustStation(base, store.edits(), chainage, delta)" in _read(
        "B05_Profile/B05_Profile_UI_Profile_Render.ts"
    )
    assert "ctx.applyEdits(adjustStation(base, ctx.edits(), chainage, delta))" in _read(
        "B05_Profile/B05_Profile_UI_Profile_Panel_Tools.ts"
    )
    assert "pivotAxes(current, chainageM)" in _read(
        "B05_Profile/logic/B05_Profile_UI_Profile_Alignment.ts"
    )