/* 139-6 고른 설계선 사면 이동 헬퍼 — `_Cross_Design_Pick.attachDesignLinePick` 을 그 자리에서
 * 트랜스파일해 흉내 DOM 으로 돌림 · 151-3 이동 패널(◀ ↺ ▶ · 방향키 ←→). 짝 = `test_139_6_line_shift.py`.
 */
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();

class Node {
  constructor(tag) {
    this.tagName = tag;
    this.children = [];
    this.attrs = {};
    this.listeners = {};
    this.hidden = false;
    this.isConnected = true;
    this._text = "";
    this._cls = new Set();
    const self = this;
    this.classList = {
      add: (...n) => n.forEach((c) => self._cls.add(c)),
      toggle: (c, on) => ((on ?? !self._cls.has(c)) ? self._cls.add(c) : self._cls.delete(c)),
      contains: (c) => self._cls.has(c),
    };
  }
  get descendants() {
    return this.children.flatMap((c) => [c, ...c.descendants]);
  }
  /** `.이름` 한 개만 — 패널 공용 부품이 슬롯 단추를 찾는 꼴. */
  querySelector(sel) {
    return this.descendants.find((n) => n._cls.has(sel.slice(1))) ?? null;
  }
  getClientRects() {
    return this._cls.has("is-hidden") ? [] : [{}];
  }
  set className(v) {
    this._cls = new Set(String(v).split(/\s+/).filter(Boolean));
  }
  set textContent(v) {
    this._text = String(v);
  }
  get textContent() {
    return this._text + this.children.map((c) => c.textContent).join("");
  }
  append(...kids) {
    this.children.push(...kids);
  }
  insertBefore(kid) {
    this.children.push(kid);
  }
  setAttribute(n, v) {
    this.attrs[n] = String(v);
    if (n === "class") this.className = v;
  }
  getAttribute(n) {
    return this.attrs[n] ?? null;
  }
  hasAttribute(n) {
    return n in this.attrs;
  }
  addEventListener(t, fn) {
    (this.listeners[t] ??= []).push(fn);
  }
  click() {
    (this.listeners.click ?? []).forEach((fn) => fn({ stopPropagation: () => undefined }));
  }
}
const docListeners = {};
globalThis.document = {
  createElement: (t) => new Node(t),
  createElementNS: (_n, t) => new Node(t),
  addEventListener: (t, fn) => (docListeners[t] ??= []).push(fn),
  removeEventListener: (t, fn) => {
    docListeners[t] = (docListeners[t] ?? []).filter((f) => f !== fn);
  },
};
const key = (name) =>
  [...(docListeners.keydown ?? [])].forEach((fn) =>
    fn({ key: name, target: null, preventDefault: () => undefined }),
  );

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 req = (r) =>
    r.startsWith("@util/")
      ? loadTs(path.join(ROOT, "common_util", `${r.slice(6)}.ts`))
      : loadTs(path.join(path.dirname(full), `${r}.ts`));
  new Function("exports", "module", "require", js)(box.exports, box, req);
  cache.set(full, box.exports);
  return box.exports;
}
globalThis.Element = Node;

const pick = loadTs(path.join(ROOT, "B06_Section", "B06_Section_UI_Cross_Design_Pick.ts"));
const x = (o) => 100 - o * 12; // +offset = 화면 왼쪽
const y = (e) => 900 - (e - 100) * 12;
const line = (pts, structure = false) => {
  const el = new Node("polyline");
  el.setAttribute("class", "b06-chart__design-cross");
  el.setAttribute("points", pts.map(([o, e]) => `${x(o)},${y(e)}`).join(" "));
  if (!structure) el.setAttribute(pick.DESIGN_LINE_ATTR, "");
  return el;
};
/** 방향키 한 번 — 막혔나(preventDefault) 돌려줌. */
const press = (name) => {
  let prevented = false;
  [...(docListeners.keydown ?? [])].forEach((fn) =>
    fn({ key: name, target: null, preventDefault: () => (prevented = true) }),
  );
  return prevented;
};
const pointer = (inProfile) =>
  [...(docListeners.pointerdown ?? [])].forEach((fn) =>
    fn({ target: Object.assign(new Node("g"), { closest: () => (inProfile ? {} : null) }) }),
  );

/** 단면 하나 — 좌 사면 · 노면 · 우 사면(+ 좌 구조물 트림 선). */
function card(sectionMode, ditch) {
  for (const k of Object.keys(docListeners)) if (k === "keydown") docListeners[k] = [];
  const design = {
    road_edges: {
      left: { offset_m: 2, elevation_m: 100 },
      right: { offset_m: -2, elevation_m: 100 },
    },
    ditch: ditch ? { type: "standard", top_width_m: 1 } : null,
    ditch_side: "left",
    ditch_enabled: !!ditch,
    section_mode: sectionMode,
  };
  const layer = new Node("g");
  layer.append(
    line([
      [6, sectionMode === "left_cut" ? 103 : 97],
      [2, 100],
    ]),
    line([
      [2, 100],
      [-2, 100],
    ]),
    line([
      [-2, 100],
      [-6, 97],
    ]),
    line(
      [
        [7, 96],
        [7, 94],
      ],
      true,
    ),
  );
  const values = { left: 0, right: 0 };
  const handle = pick.attachDesignLinePick({
    layer,
    design,
    x,
    toDisplayY: y,
    onPick: () => undefined,
    shift: { valueOf: (s) => values[s], set: (s, v) => (values[s] = v) },
  });
  const at = (offset, structure = false) =>
    handle.pieces.findIndex(
      (p) =>
        p.structure === structure &&
        Math.min(p.from.offset, p.to.offset) <= offset &&
        offset <= Math.max(p.from.offset, p.to.offset),
    );
  const slot = (name) => handle.panel.querySelector(`.b06-structure-panel__btn--${name}`);
  const title = () =>
    handle.panel.descendants.find((n) => n._cls.has("b06-structure-panel__title")).textContent;
  const rowHidden = () =>
    handle.panel.descendants
      .find((n) => n._cls.has("b06-structure-panel__struct"))
      ._cls.has("is-hidden");
  return { design, handle, values, at, slot, title, rowHidden };
}

const out = {};

// ① 성토측(both_fill) — 좌 사면: 가로만 · 바깥만 · 중심 못 넘음 · ▲▼ 막힘
{
  const c = card("both_fill", false);
  out.axis = {
    left: pick.pieceMoveAxis(c.design, c.handle.pieces[c.at(4)]),
    road: pick.pieceMoveAxis(c.design, c.handle.pieces[c.at(0)]),
    right: pick.pieceMoveAxis(c.design, c.handle.pieces[c.at(-4)]),
    structure: pick.pieceMoveAxis(c.design, c.handle.pieces[c.at(7, true)]),
  };
  c.handle.setActive(c.at(4));
  const upBlocked = press("ArrowUp");
  const downBlocked = press("ArrowDown");
  const afterUpDown = { ...c.values };
  press("ArrowLeft"); // 화면 왼쪽 = 좌 바깥
  press("ArrowLeft");
  const out2 = { ...c.values };
  for (let i = 0; i < 30; i += 1) press("ArrowRight"); // 안쪽 끝까지 — 0 에서 멈춤
  const inward = { ...c.values };
  out.fill = {
    upBlocked,
    downBlocked,
    afterUpDown,
    out2,
    inward,
    title: c.title(),
    rowHidden: c.rowHidden(),
  };
  // 종단도를 마지막에 눌렀으면 방향키는 종단도 몫 — 막지 않음
  pointer(true);
  out.fill.profileUp = press("ArrowUp");
  pointer(false);
  // ② 구조물 트림 선(성토측) = 같은 쪽 노견째 · 반대측 고정
  c.handle.setActive(c.at(7, true));
  c.slot("left").click();
  out.structure = { values: { ...c.values }, title: c.title(), upBlocked: press("ArrowUp") };
  // 우 사면 = 우 바깥(화면 오른쪽)만 · 좌 값 그대로
  c.handle.setActive(c.at(-4));
  press("ArrowLeft"); // 안쪽 — 0
  press("ArrowRight");
  out.right = { values: { ...c.values }, title: c.title() };
  // ④ 도로측 — 높이만: ▲▼ 는 종단도로 넘김(안 막음) · ◀▶ 막힘 · 값 그대로 · 이동 줄 숨김
  const before = { ...c.values };
  c.handle.setActive(c.at(0));
  out.road = {
    upPassed: !press("ArrowUp"),
    downPassed: !press("ArrowDown"),
    leftBlocked: press("ArrowLeft"),
    rightBlocked: press("ArrowRight"),
    same: JSON.stringify(before) === JSON.stringify(c.values),
    title: c.title(),
    rowHidden: c.rowHidden(),
    label: c.handle.label.textContent,
  };
  // 고름 풀면 아무 키도 안 막음
  c.handle.setActive(null);
  out.released = [press("ArrowUp"), press("ArrowLeft")];
}

// ③ 절토측(left_cut · 좌 = 절토 + 측구) — 같은 규칙 반대로
{
  const c = card("left_cut", true);
  out.cutZone = pick.pieceZone(c.design, c.handle.pieces[c.at(4)]).zone;
  c.handle.setActive(c.at(4));
  const upBlocked = press("ArrowUp");
  c.slot("left").click(); // 좌 바깥
  const outward = { ...c.values };
  c.slot("right").click();
  c.slot("right").click(); // 안쪽 — 0 에서 멈춤
  out.cut = {
    upBlocked,
    outward,
    inward: { ...c.values },
    axis: pick.pieceMoveAxis(c.design, c.handle.pieces[c.at(4)]),
  };
}

process.stdout.write(JSON.stringify(out));