"""PLAN 266-1 — B06 [상세] 처음 가로 범위 = 좌측 「횡단 보기 설정」 반폭(개별 표시 반폭이면 그것).

짝: `B06_Section/B06_Section_UI_Section_View.ts`(`detailChart` 처음 배율) ·
`B06_Section_UI_Cross_Detail.ts`(`attachDetailZoom` homeScale) · `A00_Common/b_svg_zoom_pan.ts`.
실제 TS 를 `helper_266_detail_home.cjs` 가 Node 로 돌린다.
"""

from __future__ import annotations

import json
import os
import subprocess

import pytest

HERE = os.path.dirname(__file__)
ROOT = os.path.join(HERE, "..", "..")
B06 = os.path.join(ROOT, "B06_Section")

pytestmark = pytest.mark.skipif(
    not os.path.isdir(os.path.join(ROOT, "config", "node_modules")),
    reason="프론트엔드 의존성 미설치",
)


def _read(name: str) -> str:
    with open(os.path.join(B06, name), encoding="utf-8") as f:
        return f.read().replace(chr(13), "")


@pytest.fixture(scope="module")
def out() -> dict:
    proc = subprocess.run(  # noqa: S603 — 고정 실행 파일
        ["node", os.path.join(HERE, "helper_266_detail_home.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_가로_반폭_15(out):
    # 칸 맞춤이 가로를 넓혀도 처음 배율로 되좁힘 = −15 ~ +15
    case = out["global15"]
    assert case["widened"] is True and case["homeScale"] > 1
    assert case["first"] == [-15, 15]


def test_개별_반폭_측점(out):
    assert out["station10"]["first"] == [-10, 10]


def test_안_넓힌_칸_그대로(out):
    case = out["tall15"]
    assert case["widened"] is False and case["homeScale"] == 1
    assert case["first"] == [-15, 15]


@pytest.mark.parametrize("name", ["global15", "station10", "tall15"])
def test_처음으로_같은_범위_줌_이동_그대로(out, name):
    case = out[name]
    assert case["reset"] == case["first"]  # [⤢]
    assert case["dblclick"] == case["first"]  # 더블클릭
    assert case["wheelScale"] == pytest.approx(1.15)  # 휠 줌
    assert case["panned"] is True  # 가운데 단추 끌기
    assert case["minScale"] == 1  # 줄이면 칸 맞춤 전체까지


def test_배선():
    view = _read("B06_Section_UI_Section_View.ts")
    assert (
        "const homeScale = base && fitted ? base.pixelsPerMeter / fitted.pixelsPerMeter : 1;"
        in view
    )
    assert "return { svg, axes, homeScale };" in view
    # 반폭 = 개별 표시 반폭 › 좌측 「횡단 보기 설정」(카드와 같은 길)
    assert (
        "effectiveCardHalfWidth(section, stationWidth?.widthFor(section) ?? currentCrossHalfWidth)"
        in view
    )
    src = " ".join(_read("B06_Section_UI_Cross_Detail.ts").split())
    assert "drawn.homeScale" in src and "homeScale, home, onChange" in src  # 295-2 첫 보기
    assert "homeScale: drawn.homeScale" in src