/* 383-2 교각점 방향키 — `logic/B05_Profile_RouteEdit_KeyNudge.ts` 를 Node 로 돌려 JSON 한 줄을 냄
 * (`test_383_2_route_keys.py` 가 판정). `.cjs` = 루트 package.json 이 "type": "module" 이라서.
 */
const fs = require("fs");
const path = require("path");
const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));

const ROOT = path.join(__dirname, "..", "..");
const cache = new Map();

function loadTs(file) {
  const full = path.resolve(file);
  if (cache.has(full)) return cache.get(full);
  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
  }).outputText;
  const box = { exports: {} };
  cache.set(full, box.exports);
  const localRequire = (request) =>
    request.startsWith(".")
      ? loadTs(path.join(path.dirname(full), `${request}.ts`))
      : require(request);
  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
  cache.set(full, box.exports);
  return box.exports;
}

const nudge = loadTs(path.join(ROOT, "B05_Profile", "logic", "B05_Profile_RouteEdit_KeyNudge.ts"));

// 화면 → 도면: 1 px = 0.5 m · 화면 y 아래 = 도면 y 위로 뒤집힘 · 지도 30° 돌림
const turn = (Math.PI / 180) * 30;
const plain = (x, y) => [x * 0.5, -y * 0.5];
const rotated = (x, y) => {
  const [mx, my] = plain(x, y);
  return [mx * Math.cos(turn) - my * Math.sin(turn), mx * Math.sin(turn) + my * Math.cos(turn)];
};
const keys = ["ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"];
const steps = (metricAt, shift) =>
  Object.fromEntries(keys.map((key) => [key, nudge.arrowStep(key, shift, metricAt)]));

const before = [
  [0, 0],
  [50, 0],
  [100, 20],
  [150, 0],
];
const snapped = [
  [0, 0],
  [50.8, 0],
  [100, 20.6],
  [150, 0],
];
const stayed = [
  [0, 0],
  [50.02, 0],
  [100, 20],
  [150, 0],
];
const merged = [
  [0, 0],
  [50.4, 0],
  [150, 0],
];
const out = {
  plain: steps(plain, false),
  shift: steps(plain, true),
  rotated: steps(rotated, false),
  arrows: keys.map(nudge.isArrowKey).concat(nudge.isArrowKey("Enter")),
  snapped: nudge.nudgeReport(before, snapped, 1, [50, 0], [50.3, 0]),
  stayed: nudge.nudgeReport(before, stayed, 1, [50, 0], [50.3, 0]),
  merged: nudge.nudgeReport(before, merged, 1, [50, 0], [50.3, 0]),
  messages: {
    snapped: nudge.nudgeMessage({ movedM: 0.8, pushed: 1 }, true),
    stayed: nudge.nudgeMessage({ movedM: 0.02, pushed: 0 }, true),
    free: nudge.nudgeMessage({ movedM: 0.3, pushed: 0 }, false),
  },
};
process.stdout.write(JSON.stringify(out));