/* PLAN 370-3 단위검증 헬퍼 — B06 암 경계선 고름 · 방향키 · 세로 끌기 · 아래 띠 공용 칸.
 * `_Cross_Design_Pick.attachDesignLinePick` 을 그 자리에서 트랜스파일해 흉내 DOM 으로 돌림. 짝 = `test_370_3_rock_cell.py`.
 */
const fs = require("fs");
const path = require("path");
const { makeLoader } = require("./helper_ts_stub_loader.cjs");

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

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, ref) {
    this.children = this.children.filter((k) => k !== kid);
    const at = ref ? this.children.indexOf(ref) : -1;
    if (at < 0) this.children.push(kid);
    else this.children.splice(at, 0, 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 }),
  );

const { loadTs } = makeLoader({
  root: ROOT,
  requireFor: (full) => (r) =>
    r.startsWith("@util/")
      ? loadTs(path.join(ROOT, "common_util", `${r.slice(6)}.ts`))
      : loadTs(path.join(path.dirname(full), `${r}.ts`)),
});
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. */
/** 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;
};
// 끌기 — window 듣개(놓을 때 click 한 번 막음 포함)
const winListeners = {};
globalThis.window = {
  addEventListener: (t, fn) => (winListeners[t] ??= []).push(fn),
  removeEventListener: (t, fn) => {
    winListeners[t] = (winListeners[t] ?? []).filter((f) => f !== fn);
  },
  setTimeout: () => 0,
  clearTimeout: () => undefined,
  setInterval: () => 0,
  clearInterval: () => undefined,
};
globalThis.setTimeout = () => 0;
const fire = (type, event) => [...(winListeners[type] ?? [])].forEach((fn) => fn(event));

/** 암 측점 카드 — 좌 사면 · 노면 · 우 사면 + 암 경계선 점선 두 토막(결측으로 끊김). */
function card(rockOn = true) {
  docListeners.keydown = [];
  const design = {
    road_edges: {
      left: { offset_m: 2, elevation_m: 100 },
      right: { offset_m: -2, elevation_m: 100 },
    },
    ditch: null,
    ditch_side: "left",
    ditch_enabled: false,
    section_mode: "both_fill",
  };
  const layer = new Node("g");
  layer.getScreenCTM = () => ({ a: 1, d: 1 });
  layer.append(
    line([
      [6, 97],
      [2, 100],
    ]),
    line([
      [2, 100],
      [-2, 100],
    ]),
    line([
      [-2, 100],
      [-6, 97],
    ]),
  );
  const rockLine = (pts) => {
    const el = new Node("polyline");
    el.setAttribute("class", "b06-chart__rock-boundary");
    el.setAttribute("points", pts.map(([o, e]) => `${x(o)},${y(e)}`).join(" "));
    el.style = { setProperty: (k, v) => (el.styleSet = v) };
    return el;
  };
  const rocks = [
    rockLine([
      [8, 96],
      [1, 98],
    ]),
    rockLine([
      [-1, 98],
      [-8, 96],
    ]),
  ];
  layer.append(...rocks);
  const offsets = [];
  const resets = [];
  const rock = {
    legend: "암 경계선",
    offsetM: -0.5,
    stepM: 0.1,
    upTitle: "위로",
    downTitle: "아래로",
    resetTitle: "기본",
    adjust: (d) => offsets.push(Math.round(d * 100) / 100),
    reset: () => resets.push(true),
  };
  const values = { left: 0, right: 0 };
  const picks = [];
  const handle = pick.attachDesignLinePick({
    layer,
    design,
    x,
    toDisplayY: y,
    onPick: (i) => picks.push(i),
    shift: { valueOf: (s) => values[s], set: (s, v) => (values[s] = v) },
    stationId: "R1",
    ...(rockOn && { rock }),
  });
  const cell = handle.cell;
  const slot = (name) => cell.querySelector(`.b06-cross-card__cell-btn--${name}`);
  const state = () => ({
    empty: cell.classList.contains("is-empty"),
    title: cell.children[0].textContent,
    value: cell.children[1].children.at(-1).textContent,
    slots: ["left", "up", "reset", "down", "right"].filter((n) => !slot(n).hidden),
    arrowSlots: ["left", "up", "reset", "down", "right"].filter((n) =>
      slot(n).classList.contains(`b06-structure-panel__btn--${n}`),
    ),
  });
  const hits = layer.children.filter((k) => k.classList.contains("b06-chart__design-hit"));
  const rockHit = hits.find((k) => k.classList.contains("b06-chart__rock-hit"));
  if (rockHit) rockHit.style = { setProperty: (k, v) => (rockHit.styleSet = v) };
  return { handle, cell, slot, state, hits, rockHit, rocks, offsets, resets, values, picks };
}

const out = {};

// ① 안 고름 — 공용 칸 = 빈 칸(479) · 숨은 단추 눌러도 암 안 움직임 · 방향키는 종단 계획고로 그대로
{
  const c = card();
  c.handle.setActive(null);
  out.idle = { ...c.state(), upPassed: !press("ArrowUp") };
  c.slot("up").click();
  c.slot("down").click();
  c.slot("reset").click();
  out.idle.offsets = c.offsets;
  out.idle.resets = c.resets.length;
}

// ② 판정 선 — 점선 위 path 하나(끊긴 두 토막 · M 둘) · 보라 선 판정 클래스 · 키 rock
{
  const c = card();
  c.rockHit.click();
  const index = c.picks[0];
  out.hit = {
    found: !!c.rockHit,
    tag: c.rockHit?.tagName,
    moves: (c.rockHit?.getAttribute("d").match(/M/g) ?? []).length,
    below: c.hits.indexOf(c.rockHit) === 0, // 그리는 차례 = 보라 선 판정 아래(겹친 자리는 설계선)
    picked: c.picks,
  };
  // ③ 고름 — 제목 · ▲▼↺ · ◀▶ 막음 · ▲▼ = 암만(종단으로 안 샘)
  c.handle.setActive(index);
  pick.setPickedLine("R1", index);
  out.picked = {
    ...c.state(),
    active: c.rockHit.classList.contains("is-active"),
    leftBlocked: press("ArrowLeft"),
    rightBlocked: press("ArrowRight"),
    upTaken: press("ArrowUp"),
    downTaken: press("ArrowDown"),
    sideValues: { ...c.values },
    key: pick.pickedLineAt("R1") === index,
  };
  out.picked.offsets = c.offsets;
  // ④ 세로 끌기 — 위로 0.34 m(화면 px = m × 12) → 0.3 m 한 번 · 끄는 동안 점선 · 판정 선만 옮겨 보임
  let stopped = false;
  c.rockHit.listeners.pointerdown[0]({
    button: 0,
    clientX: 0,
    clientY: 500,
    preventDefault: () => undefined,
    stopPropagation: () => (stopped = true),
  });
  fire("pointermove", { clientX: 0, clientY: 500 - 0.34 * 12 });
  const during = { rock: c.rocks[0].styleSet, hit: c.rockHit.styleSet, value: c.state().value };
  const before = c.offsets.length;
  fire("pointerup", {});
  out.drag = {
    stopped,
    during,
    sent: c.offsets.slice(before),
    clickSwallowed: (winListeners.click ?? []).length === 1,
  };
  // 풀면 빈 칸(479) · 방향키 안 먹음
  c.handle.setActive(null);
  out.released = { ...c.state(), upPassed: !press("ArrowUp") };
  // 사면을 고르면 그 선 칸(제목 · ◀↺▶ · 값 한 줄)
  const slope = c.handle.pieces.findIndex((p) => Math.max(p.from.offset, p.to.offset) > 3);
  c.handle.setActive(slope);
  out.slope = c.state();
  pick.setPickedLine("R1", null);
}

// ⑤ 안 고른 끌기는 안 감(카드 팬) · 토사(암 없음) = 빈 칸 · 판정 선 없음
{
  const c = card();
  c.handle.setActive(null);
  let stopped = false;
  c.rockHit.listeners.pointerdown[0]({
    button: 0,
    clientY: 0,
    preventDefault: () => undefined,
    stopPropagation: () => (stopped = true),
  });
  out.idleDrag = { stopped };
  const soil = card(false);
  soil.handle.setActive(null);
  out.soil = { ...soil.state(), rockHit: !!soil.rockHit };
}

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