/* =============================================================================
 * M02_MasterTemplete_Labor_Table.ts
 * M02 일위대가(서고 · 사전조합) 상세 = 일위대가표만(PLAN 723-2 · 내역 16 · 17 · 요구서_내역16 2장 3~5).
 *  · 차례 = 정보(이름 · 구분 · 단위 · 본뜬) → 일위대가표(엑셀 꼴 격자 · `Labor_Grid.laborBlock`) · 오른쪽 원문 패널
 *  · 옵션 값 = 규격 칸 · 「빈 값 n」 = 비고 칸 붉게(입력 빈 로직 줄)
 *  · 수량 칸 = 확인용 임시 입력(723-1 · 휘발 · 문서 · 저장 · dirty 안 건드림) → 그 줄 금액 · 합계 미리 보기
 *    (짝 셈 `Labor_Calc.settle` · 서버 안 부름) · 문서 안 줄 수량은 늘 null(쓰는 쪽 알약으로 이음)
 *  · 머리 단추 = [로직 추가] [자재 추가] · 줄 우클릭 = 위로 · 아래로 · 별칭 · 삭제
 *  · 줄 누름 = 줄 모달(`Labor_RowModal` — 옵션 · 메모 · 켜쌓기율 · 로직 자재 바꾸기 · 세 칸 · 단가산출) ·
 *    사전조합 참조 줄 = 서고 원본 모달(`Labor_RefEdit`) · 사용자 자재 줄 = 자재 모달(세 칸)
 *  · 금액 = 서버 calc(최신 응답만 · 저장 안 함) · [저장]은 UI_Main(서버가 수량 걷고 다시 셈)
 * 구조물 조합 일위대가(카드 · 열 상세)는 그대로 `Labor_Detail`(면적 잇기 · 수량산출).
 * ========================================================================== */

import { createButton, createInputField, el, showToast } from "@ui/ui_template_elements";
import { createSidePanels } from "@ui/ui_template_side_panels";
import { createHopyoGrid, hopyoCellClass, hopyoGrid } from "@ui/ui_template_hopyo_grid";
import { openTreeMenu, type TreeMenuItem } from "@ui/ui_template_tree";
import { askText, showConfirmDialog } from "@ui/ui_template_modal";
import { createText } from "@ui/ui_template_text";
import { currentLanguageIndex } from "@ui/ui_template_locale";
import { createSourceView } from "../M01_MasterData/M01_MasterData_UI_LogicLab_Source";
import { getActiveLayer, getActiveOwner, type ItemLogic } from "./M02_MasterTemplete_Api_Fetch";
import { lineId, settle, type LaborFixed, type LaborRef } from "./M02_MasterTemplete_Labor_Calc";
import {
  calcLabor,
  fetchLogicInputs,
  normalizeLabor,
  type LaborCalc,
  type LaborDoc,
  type LaborRow,
} from "./M02_MasterTemplete_Labor_Api";
import type { LaborDetailHandle, LaborDetailOptions } from "./M02_MasterTemplete_Labor_Detail";
import { laborBlock } from "./M02_MasterTemplete_Labor_Grid";
import { pasteInto } from "./M02_MasterTemplete_Labor_Paste";
import { openLogicPicker, withHopyo } from "./M02_MasterTemplete_Labor_Pick";
import { openRefEdit } from "./M02_MasterTemplete_Labor_RefEdit";
import { openMatModal, openRowModal } from "./M02_MasterTemplete_Labor_RowModal";
import { tc } from "./M02_MasterTemplete_Labor_Text";
import { insideKeys } from "./M02_Labor_LogicMats_Model";
import { valueLine } from "./M02_Labor_Values_Model";
import { addMaterialButton } from "./M02_Material_Pick";
import { createUnitPick, NO_UNIT } from "./DataFlow/M02_DF_UnitPick";
import { libMeta } from "./M02_MasterTemplete_Labor_LibMeta";
import "../M01_MasterData/M01_MasterData_UI_Logic_Style.css";
import "../M01_MasterData/M01_MasterData_UI_LogicLab_Style.css";
import "@ui/ui_template_general_layout.css";
import "./M02_MasterTemplete_Labor.css";

const TEXT = {
  TempHint: [
    "수량 칸 = 확인용 임시 입력(저장 안 함) — 실제 수량은 구조물 조합 · 프로젝트에서 이음",
    "Quantity = temporary check only (not saved) — real quantities link in structures · projects",
  ],
  Alias: ["별칭", "Alias"],
  AliasAsk: ["별칭(비우면 지움)", "Alias (empty = clear)"],
  RemoveAsk: ["「{value}」 줄을 지울까?", "Delete line “{value}”?"],
  Empty: ["빈 값 {n}", "{n} empty"],
  NotNumber: ["수가 아님", "Not a number"],
} as const satisfies Record<string, readonly [string, string]>;
const t = (k: keyof typeof TEXT): string => TEXT[k][currentLanguageIndex as 0 | 1] ?? TEXT[k][0];

/** 비율 고정 줄(705-3) — 수량 = 율(문서에 남음 · 임시 입력 아님) */
const isRate = (row: LaborRow): boolean => !!row.고정?.비율;
const matKey = (code: string): string => `자재|${code}`;

export function mountLaborTable(
  host: HTMLElement,
  doc: unknown,
  opt: LaborDetailOptions,
): LaborDetailHandle {
  const cur = normalizeLabor(doc, opt.column);
  // 723-1 — 옛 문서 손 수량은 안 씀(서버도 저장 때 걷음) · 비율 줄 율만
  for (const r of cur.담은로직) if (!isRate(r)) r.수량 = null;
  for (const m of cur.자재) m.수량 = null;
  const saved = JSON.stringify(cur);
  const edit = !opt.readOnly;
  const logics = new Map<string, ItemLogic>();
  /** 임시 수량(휘발) — 줄 id · 「자재|코드」 → 수 */
  const temp = new Map<string, number>();
  let calc: LaborCalc | null = null;
  let last: LaborCalc | null = null;
  let fail: string | null = null;
  let seq = 0;
  let timer = 0;
  let alive = true;
  let picked: string | null = null;
  const dirty = (): boolean => JSON.stringify(cur) !== saved;
  /** 줄 모달이 받는 셈 답(다시 셀 때마다) */
  const watchers = new Set<(c: LaborCalc | null) => void>();
  const watch = (fn: (c: LaborCalc | null) => void): (() => void) => {
    watchers.add(fn);
    fn(calc ?? last);
    return () => watchers.delete(fn);
  };

  /** 셈 몸 = 문서 + 임시 수량(저장 안 함) */
  const withTemp = (): LaborDoc => ({
    ...cur,
    담은로직: cur.담은로직.map((r) => {
      const v = temp.get(lineId(r) ?? "");
      return v === undefined ? r : { ...r, 수량: { 손: v } };
    }),
    자재: cur.자재.map((m) => {
      const v = temp.get(matKey(m.코드));
      return v === undefined ? m : { ...m, 수량: { 손: v } };
    }),
  });

  const gridHost = el("div", { attrs: { "data-labor-grid": "", "data-labor-table": "" } });
  const source = createSourceView({
    path: "/m02/logic-lib/source",
    pdf: "/m02/logic-lib/source-pdf",
  });
  const sourceHost = el("div", { attrs: { "data-labor-source": "" } });
  const side = createSidePanels({
    prefKey: "m02-labor-table-side", // 일위대가표는 넓게 — 원문은 처음 접힘(누르면 엶)
    defaultOpen: null,
    follow: false,
    panels: [{ id: "source", title: tc("Labor_Source"), body: sourceHost }],
    onChange: () => showSource(),
  });
  function showSource(): void {
    if (side.current() !== "source") return;
    if (!picked) return void sourceHost.replaceChildren(createText(tc("Labor_SourceHint")));
    source.show(logics.get(picked)?.출처 ?? "");
    if (sourceHost.firstChild !== source.root) sourceHost.replaceChildren(source.root);
  }

  /** 일위대가표 — 줄 누름 · 우클릭 · 수량 칸(임시) · 빈 값 붉게 */
  const draw = (): void => {
    const body = withTemp();
    const block = laborBlock(body, calc ?? last, logics);
    const empties = new Set<number>();
    block.lines.forEach((ln, n) => {
      const row = body.담은로직[n];
      if (!row) return void (ln.note = ln.note === tc("Grid_NoQty") ? "" : ln.note); // 자재 줄
      const empty = row.로직 ? valueLine(logics.get(row.로직)?.입력 ?? [], row.입력값).empty : 0;
      if (empty) empties.add(n);
      if (empty) ln.note = t("Empty").replace("{n}", String(empty));
      else if (ln.note === tc("Grid_NoQty")) ln.note = ""; // 수량 없음 = 서고에선 보통(723-1)
    });
    const have = calc ?? last;
    // 빈 줄 = 단가 모름(까닭) · 빈 값만 — 임시 수량 없는 줄은 안 셈
    block.blank = have ? block.lines.filter((l) => l.prices.sum == null).length + empties.size : 0;
    if (fail && block.lines[0]) block.lines[0].note = fail;
    const g = hopyoGrid([block]);
    const at = (i: number): number | null => g.at.get(i)?.[1] ?? null;
    const grid = createHopyoGrid(
      [block],
      {
        onRowClick: (i) => {
          const n = at(i);
          if (n !== null) openAt(n);
        },
        editable: (i, key) => {
          const n = at(i);
          if (key !== "qty" || n === null) return false;
          const row = cur.담은로직[n];
          return !row || !isRate(row); // 임시 입력이라 읽기만 층도 됨
        },
        onEdit: (i, _key, text) => {
          const n = at(i);
          if (n !== null) setTemp(n, text);
        },
        cellClass: (i, key) => {
          const n = at(i);
          if (key === "note" && n !== null && empties.has(n)) return "ui-hopyo-grid__blank";
          return hopyoCellClass(g.rows, i, key);
        },
      },
      edit ? (text) => void pasteInto(cur, text, afterPaste) : undefined,
    );
    grid.root.addEventListener("contextmenu", (ev) => {
      const tr = (ev.target as Element).closest<HTMLElement>("tr[data-i]");
      const n = tr ? at(Number(tr.dataset.i)) : null;
      if (n === null || !edit) return;
      ev.preventDefault();
      // 칸 초점이 표를 밀면(scroll) 메뉴가 바로 닫힘 — 밀림이 끝난 다음 그림에 엶
      requestAnimationFrame(() => requestAnimationFrame(() => openTreeMenu(ev, menuAt(n))));
    });
    gridHost.replaceChildren(grid.root);
    showSource();
    for (const fn of watchers) fn(calc ?? last);
  };

  /** 서버 다시 셈 — 늦게 온 답은 버림 */
  const recalc = (): void => {
    window.clearTimeout(timer);
    timer = window.setTimeout(async () => {
      const mine = ++seq;
      calc = null;
      fail = null;
      draw();
      try {
        const body = withTemp();
        const got = opt.calc
          ? await opt.calc(body)
          : await calcLabor(opt.layer, opt.column, body, undefined, opt.owner);
        if (!alive || mine !== seq) return;
        calc = last = got;
      } catch (error) {
        if (!alive || mine !== seq) return;
        fail = error instanceof Error ? error.message : tc("Labor_Calc_Fail");
      }
      draw();
    }, 150);
  };
  /** `qtyOnly` = 수량만(임시) — 짝 셈으로 바로 */
  const changed = (qtyOnly = false): void => {
    opt.onChanged(dirty());
    if (qtyOnly && calc) {
      calc = settle(calc, withTemp(), {});
      draw();
    } else recalc();
  };

  /** 임시 수량(휘발) — 빈 글 = 지움 · 수 아님 = 알림 */
  function setTemp(n: number, text: string): void {
    const row = cur.담은로직[n];
    const key = row ? (lineId(row) ?? "") : matKey(cur.자재[n - cur.담은로직.length]?.코드 ?? "");
    const raw = text.replace(/,/g, "").trim();
    if (!raw) temp.delete(key);
    else if (Number.isFinite(Number(raw))) temp.set(key, Number(raw));
    else return showToast(t("NotNumber"), "error");
    calc = calc && settle(calc, withTemp(), {});
    draw();
  }
  /** 붙여넣기(705-2) 뒤 — 엑셀 수량은 임시 칸으로(문서엔 안 남김) */
  function afterPaste(): void {
    for (const r of cur.담은로직) {
      const v = r.수량?.손;
      if (isRate(r) || v == null) continue;
      temp.set(lineId(r) ?? "", v);
      r.수량 = null;
    }
    void loadLogics().then(() => changed());
  }

  const loadLogics = async (): Promise<void> => {
    const want = cur.담은로직.map((r) => r.로직).filter((k) => k && !logics.has(k));
    if (!want.length) return;
    try {
      const got = await fetchLogicInputs(want);
      for (const l of got.로직) logics.set(l.로직, l);
    } catch (error) {
      showToast(error instanceof Error ? error.message : tc("Load_Failed"), "error");
    }
  };

  const lineOf = (row: LaborRow) => (calc ?? last)?.줄.find((l) => lineId(l) === lineId(row));
  const nameOf = (row: LaborRow): string =>
    row.별칭 ||
    row.고정?.이름 ||
    (row.참조 ? lineOf(row)?.이름 : logics.get(row.로직)?.이름) ||
    row.참조?.키 ||
    row.로직;

  /** 줄 누름 — 줄 갈래마다 */
  function openAt(n: number): void {
    const row = cur.담은로직[n];
    if (!row) return openMat(n - cur.담은로직.length);
    picked = row.로직 || null;
    showSource();
    if (row.참조 && row.참조.키.startsWith("SC-"))
      return void openRefEdit({
        ref: row.참조,
        title: nameOf(row),
        readOnly: !edit || row.참조.층 !== opt.layer,
        closed: () => alive && recalc(),
      });
    if (row.고정) return; // 고정 줄 = 숫자 그대로(이름 · 별칭은 우클릭)
    openRowModal({
      row,
      logic: logics.get(row.로직) ?? null,
      title: nameOf(row),
      head: [String((cur as { 이름?: string }).이름 ?? ""), cur.단위 ? `1 ${cur.단위} 당` : ""]
        .filter(Boolean)
        .join(" · "),
      unit: lineOf(row)?.분모 ?? "",
      watch,
      scope: { layer: opt.layer, owner: library.owner },
      readOnly: !edit,
      inject: !!opt.calc,
      userMats: cur.자재.map((m) => m.코드),
      done: (again) => changed(!again),
    });
  }
  function openMat(i: number): void {
    const mat = cur.자재[i];
    if (!mat) return;
    openMatModal({
      mat,
      watch,
      readOnly: !edit,
      done: (money) => changed(!money),
    });
  }

  /** 우클릭 — 위로 · 아래로 · 별칭 · 삭제 */
  function menuAt(n: number): TreeMenuItem[] {
    const rows = cur.담은로직.length;
    const isMat = n >= rows;
    const name = isMat ? (cur.자재[n - rows]?.이름 ?? "") : nameOf(cur.담은로직[n]);
    const items: TreeMenuItem[] = [];
    if (!isMat) {
      if (n > 0) items.push({ label: tc("Up"), run: () => move(n, n - 1) });
      if (n < rows - 1) items.push({ label: tc("Down"), run: () => move(n, n + 1) });
      items.push({ label: t("Alias"), run: () => void alias(n) });
    }
    items.push({
      label: tc("Remove"),
      run: () =>
        void showConfirmDialog(t("RemoveAsk").replace("{value}", name), tc("Remove")).then(
          (ok) => ok && remove(n),
        ),
    });
    return items;
  }
  function move(from: number, to: number): void {
    cur.담은로직.splice(to, 0, ...cur.담은로직.splice(from, 1));
    changed();
  }
  async function alias(n: number): Promise<void> {
    const row = cur.담은로직[n];
    const got = await askText({ message: t("AliasAsk"), value: row.별칭 ?? "" });
    if (got === null || got === undefined) return;
    row.별칭 = got.trim() || null;
    opt.onChanged(dirty());
    draw();
  }
  function remove(n: number): void {
    const rows = cur.담은로직.length;
    if (n < rows) {
      temp.delete(lineId(cur.담은로직[n]) ?? "");
      cur.담은로직.splice(n, 1);
    } else {
      temp.delete(matKey(cur.자재[n - rows]?.코드 ?? ""));
      cur.자재.splice(n - rows, 1);
    }
    changed();
  }

  /** 서고 고르기 — 참조 줄 · 고정 줄(721-2 새 고르기 창 · 인력 · 재료) */
  const library = {
    layer: opt.layer,
    owner:
      opt.owner !== undefined
        ? opt.owner
        : opt.layer === getActiveLayer()
          ? getActiveOwner()
          : null,
    pick: (ref: LaborRef, name: string, 별칭: string | null = null) => {
      const id = lineId({ 참조: ref });
      if (cur.담은로직.some((r) => lineId(r) === id))
        return showToast(tc("Labor_AlreadyRef").replace("{value}", name), "error");
      cur.담은로직.push({ 로직: "", 참조: ref, 별칭, 메모: null, 입력값: {}, 수량: null });
      changed();
    },
    fixed: (fx: LaborFixed, name: string) => {
      const id = lineId({ 고정: fx });
      if (cur.담은로직.some((r) => lineId(r) === id))
        return showToast(tc("Labor_AlreadyRef").replace("{value}", name), "error");
      cur.담은로직.push({ 로직: "", 고정: fx, 별칭: null, 메모: null, 입력값: {}, 수량: null });
      changed();
    },
  };
  const addLogic = createButton({
    label: tc("AddLogic"),
    variant: "filled",
    onClick: () =>
      openLogicPicker((x) => {
        if (cur.담은로직.some((r) => r.로직 === x.키))
          return showToast(tc("Labor_Already").replace("{value}", `${x.키} ${x.이름}`), "error");
        cur.담은로직.push({ 로직: x.키, 별칭: null, 메모: null, 입력값: {}, 수량: null });
        void loadLogics().then(() => changed());
      }, withHopyo(library)),
  });
  const addMat = addMaterialButton(
    tc("Labor_AddMat"),
    (m) => {
      const why = insideKeys((calc ?? last)?.줄).has(m.코드)
        ? "Labor_InLogicMat"
        : cur.자재.some((x) => x.코드 === m.코드) && "Labor_AlreadyMat";
      if (why) return showToast(tc(why).replace("{value}", `${m.코드} ${m.이름 ?? ""}`), "error");
      cur.자재.push({ 코드: m.코드, 이름: m.이름, 규격: m.규격, 단위: m.단위, 수량: null });
      changed();
    },
    opt.layer === "personal" ? { owner: library.owner } : undefined,
  );

  // 정보 칸 — 이름 · 구분 · 상세구분 · 단위 · 본뜬
  const nameField = createInputField({ type: "text", label: tc("Lib_Name") });
  nameField.root.dataset.laborField = "이름";
  nameField.input.value = String((cur as { 이름?: unknown }).이름 ?? "");
  nameField.input.readOnly = !edit;
  nameField.input.addEventListener("input", () => {
    (cur as { 이름?: string }).이름 = nameField.input.value.trim();
    opt.onChanged(dirty());
  });
  const unit = el("div", { className: "ui-field", attrs: { "data-labor-field": "단위" } });
  const unit0 = cur.단위;
  const drawUnit = (): void =>
    unit.replaceChildren(
      el("label", { className: "ui-field__label", text: tc("Labor_Unit") }),
      createUnitPick({
        value: cur.단위 || NO_UNIT,
        extra: [unit0, cur.단위].filter((u): u is string => !!u),
        readOnly: !edit,
        ariaLabel: tc("Labor_Unit"),
        onPick: (u) => {
          cur.단위 = u === NO_UNIT ? null : u;
          opt.onChanged(dirty());
          drawUnit();
          draw();
        },
      }),
    );
  drawUnit();
  const origin = createInputField({ type: "text", label: tc("Labor_Origin") });
  origin.input.value = cur.본뜬?.키 ? `${cur.본뜬.층} ${cur.본뜬.키}` : tc("Origin_Self");
  origin.input.readOnly = true;

  host.replaceChildren(
    el("div", {
      className: "ui-side-panels-row",
      children: [
        el("div", {
          className: "m01-logic__editor m01-combo m02-labor__edit",
          attrs: { "data-labor": opt.column },
          children: [
            el("section", {
              className: "m01lab__box m01-logic__section",
              children: [
                el("div", {
                  className: "m01lab__info",
                  children: [
                    nameField.root,
                    ...libMeta(cur, edit, () => opt.onChanged(dirty())),
                    unit,
                    origin.root,
                  ],
                }),
              ],
            }),
            el("section", {
              className: "m01lab__box m01-logic__section",
              children: [
                el("div", {
                  className: "m01-logic__section-head",
                  children: [
                    el("h3", { text: tc("Grid_Title") }),
                    ...(edit
                      ? [el("div", { className: "ui-btn-group", children: [addLogic, addMat] })]
                      : []),
                  ],
                }),
                createText(t("TempHint"), "hint"),
                gridHost,
              ],
            }),
          ],
        }),
        side.root,
      ],
    }),
  );
  draw();
  void loadLogics().then(() => alive && recalc());

  return {
    getDoc: () => {
      const out: Record<string, unknown> = { ...cur, 종류: "사전조합" };
      delete out.열;
      return out as unknown as LaborDoc;
    },
    saveArea: async () => false,
    destroy: () => {
      alive = false;
      window.clearTimeout(timer);
      host.replaceChildren();
    },
  };
}