/* =============================================================================
 * e_harness.ts — E(도구 모음 · 탭 · 메뉴 · 클립보드) 화면 시험 틀.
 * A(주소 · 명령 · 엔진 · 참조 옮김) · B(숫자 형식) 가 이제 실제로 있어 진짜 모듈을 그대로 씀
 * (`vite.harness.config.ts` 는 `@ui` 별칭만 · 가짜 없음). dispatch 는 진짜 `applyCommand` →
 * 진짜 `createCalcEngine` → 화면 갱신 순서로 실제 앱과 같은 길을 탐.
 * ========================================================================== */

import { mountToolbar } from "../../../A00_Common/spreadsheet/spreadsheet_toolbar";
import { mountTabs } from "../../../A00_Common/spreadsheet/spreadsheet_tabs";
import { attachMenu } from "../../../A00_Common/spreadsheet/spreadsheet_menu";
import {
  attachClipboard,
  parseClipboard,
} from "../../../A00_Common/spreadsheet/spreadsheet_clipboard";
import { applyCommand, emptyWorkbook } from "../../../A00_Common/spreadsheet/spreadsheet_commands";
import { createCalcEngine } from "../../../A00_Common/spreadsheet/spreadsheet_graph";
import { createHistory } from "../../../A00_Common/spreadsheet/spreadsheet_history";
import type { Workbook } from "../../../A00_Common/spreadsheet/spreadsheet_types";
import type {
  GridHandle,
  Selection,
  SpreadsheetContext,
} from "../../../A00_Common/spreadsheet/spreadsheet_view_types";

const log: string[] = [];
const logEl = document.querySelector<HTMLPreElement>("#log")!;
function say(msg: string): void {
  log.push(msg);
  logEl.textContent = log.join("\n");
}

const book: Workbook = emptyWorkbook("test", "측구수로400");
book.서식 = [{}, { 굵게: true }];
book.시트[0].칸 = {
  A1: { 값: "터파기 계산서", 서식: 1 },
  B1: { 값: 12.5 },
  C1: { 식: "B1*2" },
};
// 탭 이름 바꾸기가 다른 시트 참조 글도 고치는지 보는 둘째 시트.
book.시트.push({
  id: "s2",
  이름: "둘째",
  칸: { A1: { 식: "측구수로400!B1+1" } },
});

const engine = createCalcEngine(book);
const history = createHistory();

const selection: Selection = {
  시트: "s1",
  범위: [{ r0: 0, c0: 0, r1: 0, c1: 0 }],
  활성: { r: 0, c: 0 },
  기준: { r: 0, c: 0 },
};

const root = document.querySelector<HTMLDivElement>("#ss-root")!;

const grid: GridHandle = {
  root,
  render() {},
  invalidate() {},
  renderSelection() {},
  setRefHighlights() {},
  cellBox: () => ({ x: 0, y: 0, w: 60, h: 20 }),
  hitTest: (clientX) => {
    const box = root.getBoundingClientRect();
    const x = clientX - box.left;
    if (x < 30) return { kind: "rowHead", r: 0, c: 0 };
    if (x < 60) return { kind: "colHead", r: 0, c: 0 };
    return { kind: "cell", r: selection.활성.r, c: selection.활성.c };
  },
  reveal() {},
  visibleRange: () => ({ r0: 0, c0: 0, r1: 10, c1: 10 }),
  editorSlot: () => ({ layer: root, box: { x: 0, y: 0, w: 60, h: 20 } }),
  destroy() {},
};

function applyAndRefresh(command: import("../../../A00_Common/spreadsheet/spreadsheet_types").Command): void {
  const effect = applyCommand(book, command);
  if (effect.rebuild) engine.rebuild(book);
  else engine.update(effect.cells);
  toolbar.refresh();
  tabs.refresh();
}

const ctx: SpreadsheetContext = {
  root,
  book,
  readOnly: false,
  engine,
  history,
  selection,
  sheet: () => book.시트.find((s) => s.id === selection.시트)!,
  dispatch(command) {
    say(`dispatch: ${JSON.stringify(command)}`);
    const effect = applyCommand(book, command);
    history.push(command, effect.undo);
    if (effect.rebuild) engine.rebuild(book);
    else engine.update(effect.cells);
    toolbar.refresh();
    tabs.refresh();
  },
  undo() {
    const cmd = history.undo();
    say(`undo: ${cmd ? JSON.stringify(cmd) : "(없음)"}`);
    if (cmd) applyAndRefresh(cmd);
  },
  redo() {
    const cmd = history.redo();
    say(`redo: ${cmd ? JSON.stringify(cmd) : "(없음)"}`);
    if (cmd) applyAndRefresh(cmd);
  },
  select(sel) {
    Object.assign(selection, sel);
    say(`select: ${JSON.stringify(sel)}`);
    toolbar.refresh();
  },
  showSheet(sheetId) {
    book.활성 = sheetId;
    selection.시트 = sheetId;
    selection.범위 = [{ r0: 0, c0: 0, r1: 0, c1: 0 }];
    selection.활성 = { r: 0, c: 0 };
    say(`showSheet: ${sheetId}`);
    tabs.refresh();
    toolbar.refresh();
  },
  grid,
  editor: {
    editing: () => false,
    begin() {},
    commit() {},
    cancel() {},
    sync() {},
  },
};

const toolbar = mountToolbar(ctx);
const tabs = mountTabs(ctx);
attachMenu(ctx);
attachClipboard(ctx);

document.querySelector("#toolbar-slot")!.append(toolbar.root!);
document.querySelector("#tabs-slot")!.append(tabs.root!);

say("mounted — 도구 모음 · 탭 · 메뉴 · 클립보드 붙음(진짜 A · B 엔진)");

(window as unknown as { __ctx: unknown; __book: unknown }).__ctx = ctx;
(window as unknown as { __ctx: unknown; __book: unknown }).__book = book;

// 클립보드 밖 → 안 시험 — 자리 표시자에 실제로 붙여넣기(Ctrl+V)를 받아 결과를 보임.
const pasteZone = document.querySelector<HTMLDivElement>("#paste-zone")!;
const pasteOut = document.querySelector<HTMLPreElement>("#paste-out")!;
pasteZone.addEventListener("paste", (ev) => {
  ev.preventDefault();
  const html = ev.clipboardData?.getData("text/html") ?? "";
  const text = ev.clipboardData?.getData("text/plain") ?? "";
  const block = parseClipboard(html, text, { r: 0, c: 0 });
  pasteOut.textContent = `html:\n${html}\n\ntext:\n${text}\n\nblock:\n${JSON.stringify(block, null, 2)}`;
});