"""PLAN 346-2 — 노선 편집 평면 발자국 그리기.

가짜 footprint → 그릴 선 수 · 색 갈래(도로 끝 · 깎기 · 쌓기 · 깎기 여부 없음) · 바뀌는 점은 앞뒤가
함께 가짐 · 편집기 그리기 · [발자국] 단추 · 밝음 · 어두움 색 토큰이 이어져 있음.
"""

from __future__ import annotations

import json
import re
import subprocess
from pathlib import Path

import pytest

ROOT = Path(__file__).resolve().parents[2]
B05 = ROOT / "B05_Profile"
TS_FILE = B05 / "logic" / "B05_Profile_Footprint_Strokes.ts"
TSC = ROOT / "config" / "node_modules" / "typescript" / "bin" / "tsc"

_RUNNER = """
import { writeFileSync } from "node:fs";
import { footprintStrokes } from "./B05_Profile/logic/B05_Profile_Footprint_Strokes.js";
const line = (y) => [[0, y], [10, y], [20, y], [30, y], [40, y]];
const base = { roadLeft: line(3), roadRight: line(-3), slopeLeft: line(6), slopeRight: line(-7) };
const out = {
  none: footprintStrokes(null),
  plain: footprintStrokes(base),
  flagged: footprintStrokes({
    ...base,
    slopeLeftCut: [true, true, false, false, true],
    slopeRightCut: [false, false, false, false, false],
  }),
  short: footprintStrokes({ roadLeft: [[0, 0]], roadRight: [], slopeLeft: [], slopeRight: [] }),
  badFlags: footprintStrokes({ ...base, slopeLeftCut: [true] }),
};
writeFileSync(process.argv[2], JSON.stringify(out));
"""


def _run(tmp_path: Path) -> dict:
    out = tmp_path / "js"
    subprocess.run(  # noqa: S603 — 고정 실행 파일
        [
            "node",
            str(TSC),
            str(TS_FILE),
            "--outDir",
            str(out),
            "--rootDir",
            str(ROOT),
            "--module",
            "esnext",
            "--target",
            "es2022",
            "--moduleResolution",
            "bundler",
            "--ignoreConfig",
        ],
        cwd=str(ROOT),
        check=True,
        capture_output=True,
    )
    for emitted in out.rglob("*.js"):
        emitted.write_text(
            re.sub(r'(from\s+"\.\.?/[^"]+)"', r'\1.js"', emitted.read_text(encoding="utf-8")),
            encoding="utf-8",
        )
    (out / "runner.mjs").write_text(_RUNNER, encoding="utf-8")
    result = tmp_path / "out.json"
    subprocess.run(  # noqa: S603
        ["node", str(out / "runner.mjs"), str(result)],
        cwd=str(ROOT),
        check=True,
        capture_output=True,
    )
    return json.loads(result.read_text(encoding="utf-8"))


def _kinds(strokes: list[dict]) -> list[str]:
    return [stroke["kind"] for stroke in strokes]


@pytest.mark.skipif(not TSC.is_file(), reason="프론트엔드 의존성 미설치")
def test_가짜_발자국_선_수와_색_갈래(tmp_path: Path) -> None:
    out = _run(tmp_path)
    assert out["none"] == [] and out["short"] == []
    # 깎기 여부 없음 = 도로 끝 둘 + 비탈 끝 둘(한 색)
    assert _kinds(out["plain"]) == ["road", "road", "slope", "slope"]
    assert _kinds(out["badFlags"]) == ["road", "road", "slope", "slope"]
    # 좌 = 깎기 → 쌓기(끝 한 점 깎기는 2점 미만이라 뺌) · 우 = 쌓기 한 줄
    flagged = out["flagged"]
    assert _kinds(flagged) == ["road", "road", "cut", "fill", "fill"]
    assert flagged[2]["points"] == [[0, 6], [10, 6], [20, 6]]  # 바뀌는 점(20)을 앞 조각도 가짐
    assert flagged[3]["points"] == [[20, 6], [30, 6], [40, 6]]
    assert flagged[4]["points"] == [[0, -7], [10, -7], [20, -7], [30, -7], [40, -7]]


def test_편집기가_발자국을_그리고_단추로_켬끔() -> None:
    render = (B05 / "B05_Profile_UI_RouteEdit_Render.ts").read_text(encoding="utf-8")
    assert "drawFootprint(context, toScreen, style, () => drawRouteEditScene(context, scene))" in (
        render
    )
    # 등고선 뒤 · 노선 앞(노선이 발자국 위에 보임)
    assert render.index("drawFootprint(context") < render.index("scene.expected,")
    chrome = (B05 / "B05_Profile_UI_RouteEdit_Chrome.ts").read_text(encoding="utf-8")
    assert 'data-act="footprint"' in chrome and "bindFootprintToggle(" in chrome
    footprint = (B05 / "B05_Profile_UI_RouteEdit_Footprint.ts").read_text(encoding="utf-8")
    assert 'subscribe("footprint"' in footprint and "let shown = true;" in footprint
    css = (B05 / "B05_Profile_UI_Style_RouteEdit_Footprint.css").read_text(encoding="utf-8")
    for token in ("--b05-footprint-road", "--b05-footprint-cut", "--b05-footprint-fill"):
        assert token in footprint
        assert css.count(f"{token}:") == 3  # 밝음 · 어두움 · 시스템 어두움