/* =============================================================================
 * M02_MasterTemplete_Hopyo_View.ts
 * 일위대가 실무자료 본 화면(PLAN 324-4) — 파일 하나: 파일 · 시트 · 호표 수 · 검산 · 맞춤 n/m · 호표 표 + 찾기 ·
 * [지우기] / 호표 하나: 줄 표(갈래 · 품명 · 규격 · 수량 · 단위 · 엑셀 단가 · 맞춤 · 대상 · 입력값 · 환산 ·
 * [고르기] [확정] [빼기]) · [같음 모두 확정] · 빠진 줄 · [사전조합 만들기] → 값 비교 · 다시 씀이면 [새로 만들기].
 * 맞춤 · 만들기는 서버(`M02_Hopyo_Match` · `M02_Hopyo_Build`) · 쓰기 단추는 층 쓰기 권한만.
 * ========================================================================== */

import { createButton, el, showConfirmDialog, showToast } from "@ui/ui_template_elements";
import { loadingError, showLoading } from "@ui/ui_template_loading";
import { openModal } from "@ui/ui_template_modal";
import {
  buildHopyo,
  deleteHopyo,
  guessHopyo,
  readHopyo,
  readHopyoOne,
  saveHopyoMemory,
  type HopyoBuilt,
  type HopyoGuess,
  type HopyoLine,
  type HopyoMemory,
  type HopyoOne,
  type HopyoScope,
  type HopyoTarget,
  type HopyoView,
} from "./M02_MasterTemplete_Hopyo_Api";
import { openLogicPicker } from "./M02_MasterTemplete_Labor_Pick";
import { pickMaterial } from "./M02_Material_Pick";
import "./M02_MasterTemplete_Hopyo.css";

export interface HopyoViewOptions {
  scope: HopyoScope;
  /** 층 쓰기 권한 — 없으면 확정 · 만들기 · 지우기 단추 없음 */
  canWrite: boolean;
  /** 파일을 지웠음 — 좌측 목록 다시 */
  onDeleted: () => void;
}

const STATE: Record<string, string> = {
  기억: "기억",
  같음: "같음",
  후보: "후보",
  없음: "없음",
  빼기: "뺌",
  호표: "호표",
  "%": "% 줄",
};
const MATERIAL = new Set(["자재", "별도계상"]);

const why = (error: unknown): string => (error instanceof Error ? error.message : String(error));
const won = (v: number | null | undefined): string =>
  v === null || v === undefined ? "" : v.toLocaleString("ko-KR");
const fail = (error: unknown): void => showToast(`실패 — ${why(error)}`, "error");

const grid = (heads: string[], body: HTMLElement, cls = ""): HTMLElement =>
  el("div", {
    className: "ui-general-block__table-wrap ui-general-block__table-wrap--sticky-head",
    children: [
      el("table", {
        className: `ui-general-block__table m02-hopyo__table ${cls}`.trim(),
        children: [
          el("thead", {
            children: [el("tr", { children: heads.map((t) => el("th", { text: t })) })],
          }),
          body,
        ],
      }),
    ],
  });
const table = (heads: string[], rows: HTMLElement[]): HTMLElement =>
  grid(heads, el("tbody", { children: rows }));
const td = (text: string, cls = ""): HTMLElement =>
  el("td", { text, className: cls, attrs: { title: text } });
const note = (text: string): HTMLElement => el("span", { className: "m02-hopyo__note", text });

/** 대상 글 — 「이름 [단위]」 · 자재는 규격도 · 호표 = 「제N호표」 */
export const targetText = (t: HopyoTarget | null | undefined): string => {
  if (!t) return "";
  if (t.호표 !== undefined) return `제${t.호표}호표 ${t.단위 ? `[${t.단위}]` : ""}`.trim();
  const spec = t.규격 ? ` ${t.규격}` : "";
  return `${t.이름 ?? t.로직 ?? t.자재 ?? ""}${spec}${t.단위 ? ` [${t.단위}]` : ""}`;
};

/** 입력값 글 — 「이름=값」 · 못 읽은 입력 표시 */
export const inputsText = (values: Record<string, unknown>, unread: string[]): string =>
  [
    Object.entries(values)
      .map(([k, v]) => `${k}=${String(v)}`)
      .join(", "),
    unread.length ? `⚠ 못 읽음: ${unread.join(", ")}` : "",
  ]
    .filter(Boolean)
    .join(" · ");

/** 만들기 결과 낱말 — [새로 만들기] = 「새로 만들어 덮음」 · 있던 것 = 「다시 씀」 · 그 밖 「만듦」 */
export const builtWord = (got: Pick<HopyoBuilt, "다시씀">, fresh: boolean): string =>
  fresh ? "새로 만들어 덮음" : got.다시씀 ? "다시 씀" : "만듦";

/** 확정 한 줄 몸 — 대상 · 입력값 · 환산(0 넘는 수) · 없으면 null */
export function memoryOf(
  target: HopyoTarget | null,
  values: Record<string, unknown>,
  times: number | null,
): HopyoMemory {
  if (!target || times === null || !(times > 0)) return null;
  if (target.로직) return { 로직: target.로직, 입력값: values, 환산: times };
  if (target.자재) return { 자재: target.자재, 입력값: values, 환산: times };
  return null;
}

export function buildHopyoView(key: string, opt: HopyoViewOptions): HTMLElement {
  const view = el("div", { className: "m02-hopyo", attrs: { "data-hopyo-view": key } });
  let nav = 0; // 늦게 온 응답 버림
  let query = "";

  async function load<T>(get: () => Promise<T>, retry: () => void): Promise<T | null> {
    const my = ++nav;
    const stop = showLoading(view);
    try {
      const got = await get();
      return my === nav ? got : null;
    } catch (error) {
      if (my === nav) view.replaceChildren(loadingError(why(error), retry));
      return null;
    } finally {
      stop();
    }
  }

  /* ── 파일 하나 — 호표 표 ─────────────────────────────────────── */
  async function drawFile(): Promise<void> {
    const file = await load(
      () => readHopyo(opt.scope, key),
      () => void drawFile(),
    );
    if (!file) return;
    const search = el("input", {
      className: "ui-input ui-input--sm m02-hopyo__search",
      attrs: { type: "search", placeholder: "호표 · 품명 · 규격 찾기", value: query },
    }) as HTMLInputElement;
    const body = el("tbody");
    const paint = (): void => {
      const q = search.value.trim().toLowerCase();
      query = search.value;
      body.replaceChildren(
        ...file.호표
          .filter((h) => !q || `제${h.번}호표 ${h.이름} ${h.규격}`.toLowerCase().includes(q))
          .map((h) => {
            const tr = el("tr", {
              className: "m02-hopyo__row",
              attrs: { "data-hopyo-no": String(h.번) },
              children: [
                td(`제${h.번}호표`),
                td(h.이름),
                td(h.규격),
                td(h.단위),
                td(won(h.금액.계), "m02-hopyo__num"),
                td(`${h.맞춤[0]} / ${h.맞춤[1]}`, "m02-hopyo__num"),
              ],
            });
            tr.addEventListener("click", () => void drawOne(h.번));
            return tr;
          }),
      );
    };
    search.addEventListener("input", paint);
    paint();
    const wrong = file.검산.어긋남;
    view.replaceChildren(
      el("div", {
        className: "m02-hopyo__bar",
        children: [
          el("strong", { text: file.파일 }),
          note(`시트 ${file.시트}`),
          note(`호표 ${file.호표수}`),
          note(wrong.length ? `검산 어긋남 ${wrong.length}` : "검산 맞음"),
          note(`맞춤 ${file.맞춤[0]} / ${file.맞춤[1]}`),
          ...(opt.canWrite ? [dropButton(file)] : []),
        ],
      }),
      ...(wrong.length ? [el("p", { className: "m02-hopyo__warn", text: wrong.join("\n") })] : []),
      search,
      grid(["호표", "품명", "규격", "단위", "엑셀 단가", "맞춤"], body),
    );
  }

  const dropButton = (file: HopyoView): HTMLButtonElement =>
    createButton({
      label: "지우기",
      variant: "danger",
      size: "sm",
      onClick: async () => {
        const ask = `실무자료 「${file.파일}」을 지움 — 만든 사전조합 · 맞춤 기억은 그대로`;
        if (!(await showConfirmDialog(ask, "지우기"))) return;
        try {
          await deleteHopyo(opt.scope, key);
          showToast("지움", "success");
          opt.onDeleted();
        } catch (error) {
          fail(error);
        }
      },
    });

  /* ── 호표 하나 — 줄 맞춤 ────────────────────────────────────── */
  async function drawOne(no: number, built?: HopyoBuilt & { 새로: boolean }): Promise<void> {
    const got = await load(
      () => readHopyoOne(opt.scope, key, no),
      () => void drawOne(no),
    );
    if (!got) return;
    const h = got.호표;
    const picked = new Map<number, HopyoGuess>(); // 고른 대상(확정 전)
    const back = createButton({ label: "← 호표 목록", variant: "ghost", size: "sm" });
    back.addEventListener("click", () => void drawFile());
    const rows = el("tbody");
    const paintRows = (): void => {
      rows.replaceChildren(...h.줄.map((line) => lineRow(got, line, picked, paintRows)));
    };
    paintRows();
    const same = h.줄.filter((x) => x.맞춤.상태 === "같음" && x.맞춤.환산?.배 != null);
    const tools: HTMLElement[] = [];
    if (opt.canWrite) {
      const all = createButton({ label: `같음 모두 확정 (${same.length})`, size: "sm" });
      all.disabled = !same.length;
      all.addEventListener("click", () => void confirmAll(no, same));
      const make = createButton({ label: "사전조합 만들기", variant: "filled", size: "sm" });
      make.addEventListener("click", () => void build(no, false));
      tools.push(all, make);
    }
    const missing = h.줄.filter((x) => !x.맞춤.들어감);
    view.replaceChildren(
      el("div", {
        className: "m02-hopyo__bar",
        children: [
          back,
          el("strong", { text: `제${h.번}호표 ${h.이름}` }),
          note(h.규격),
          note(h.단위),
          note(`엑셀 단가 ${won(h.금액.계)}`),
          note(`맞춤 ${h.맞춤[0]} / ${h.맞춤[1]}`),
          ...tools,
        ],
      }),
      h.줄.length
        ? grid(
            [
              "갈래",
              "품명",
              "규격",
              "수량",
              "단위",
              "엑셀 단가",
              "맞춤",
              "대상",
              "입력값",
              "환산",
              "",
            ],
            rows,
            "m02-hopyo__lines",
          )
        : el("p", { className: "m02-hopyo__note", text: "구성 줄 없음" }),
      ...(missing.length ? [missingBlock(missing)] : []),
      ...(built ? [builtBlock(no, built)] : []),
    );
  }

  function lineRow(
    got: HopyoOne,
    line: HopyoLine,
    picked: Map<number, HopyoGuess>,
    repaint: () => void,
  ): HTMLElement {
    const m = line.맞춤;
    const mine = picked.get(line.차례);
    const target = mine?.대상 ?? m.대상;
    const values = mine?.입력값 ?? m.입력값;
    const conv = mine?.환산 ?? m.환산;
    const fixed = ["%", "호표", "빼기"].includes(m.상태);
    const times = el("input", {
      className: "ui-input ui-input--sm m02-hopyo__times",
      attrs: {
        type: "number",
        step: "any",
        min: "0",
        value: conv?.배 != null ? String(conv.배) : "",
      },
    }) as HTMLInputElement;
    times.disabled = !opt.canWrite || fixed || !target;
    const state = mine ? "고름" : (STATE[m.상태] ?? m.상태);
    const actions: HTMLElement[] = [];
    if (opt.canWrite && m.상태 === "빼기") {
      actions.push(
        createButton({
          label: "되살림",
          variant: "ghost",
          size: "sm",
          onClick: () => void remember(got.호표.번, { [m.열쇠]: null }),
        }),
      );
    } else if (opt.canWrite && !["%", "호표"].includes(m.상태)) {
      actions.push(
        createButton({
          label: "고르기",
          variant: "ghost",
          size: "sm",
          onClick: () =>
            choose(line, (t) =>
              guessHopyo(opt.scope, key, got.호표.번, line.차례, t).then(
                (g) => (picked.set(line.차례, g), repaint()),
                fail,
              ),
            ),
        }),
        createButton({
          label: "확정",
          size: "sm",
          disabled: !target,
          onClick: () => {
            const body = memoryOf(target, values, times.value === "" ? null : Number(times.value));
            if (!body) return showToast("대상과 0 넘는 환산을 넣어야 확정", "error");
            void remember(got.호표.번, { [m.열쇠]: body });
          },
        }),
        createButton({
          label: "빼기",
          variant: "ghost",
          size: "sm",
          onClick: () => void remember(got.호표.번, { [m.열쇠]: { 빼기: true } }),
        }),
      );
    }
    return el("tr", {
      className: `m02-hopyo__line is-${m.들어감 ? "in" : "out"}`,
      attrs: { "data-line": String(line.차례), "data-state": m.상태 },
      children: [
        td(line.갈래),
        td(line.이름),
        td(line.규격),
        td(line.수량 === null ? "" : String(line.수량), "m02-hopyo__num"),
        td(line.단위),
        td(won(line.단가.계), "m02-hopyo__num"),
        el("td", {
          children: [el("span", { className: `m02-hopyo__state is-${m.상태}`, text: state })],
        }),
        td(targetText(target)),
        td(inputsText(values, mine?.못읽음 ?? m.못읽음)),
        el("td", {
          children: [times, note(conv?.갈래 ? ` ${conv.갈래}` : "")],
        }),
        el("td", { className: "m02-hopyo__acts", children: actions }),
      ],
    });
  }

  /** 대상 고르기 — 후보 5 + 다른 로직 · 자재 찾기 */
  function choose(line: HopyoLine, done: (t: HopyoTarget) => void): void {
    const material = MATERIAL.has(line.갈래);
    openModal({
      title: `고르기 — ${line.이름} ${line.규격}`.trim(),
      closeLabel: "닫기",
      dialogClass: "m02-modal m02-hopyo__choose",
      mount: (body, close) => {
        const pick = (t: HopyoTarget): void => {
          close();
          done(t);
        };
        const list = (line.맞춤.후보 ?? []).map((c) =>
          createButton({
            label: `${targetText(c)} · ${c.로직 ?? c.자재 ?? ""}`,
            variant: "ghost",
            size: "sm",
            onClick: () => pick(c),
          }),
        );
        const more = createButton({
          label: material ? "다른 자재 찾기…" : "다른 로직 찾기…",
          size: "sm",
          onClick: () => {
            close();
            if (material) pickMaterial((x) => done({ 자재: x.코드 }));
            else openLogicPicker((x) => done({ 로직: x.키 }));
          },
        });
        body.append(
          el("p", { className: "m02-hopyo__note", text: list.length ? "후보" : "가까운 것 없음" }),
          el("div", { className: "m02-hopyo__cands", children: list }),
          more,
        );
      },
    });
  }

  async function remember(no: number, 줄: Record<string, HopyoMemory>): Promise<void> {
    try {
      await saveHopyoMemory(opt.scope, 줄);
      await drawOne(no);
    } catch (error) {
      fail(error);
    }
  }

  async function confirmAll(no: number, lines: HopyoLine[]): Promise<void> {
    const body: Record<string, HopyoMemory> = {};
    for (const x of lines) {
      const one = memoryOf(x.맞춤.대상, x.맞춤.입력값, x.맞춤.환산?.배 ?? null);
      if (one) body[x.맞춤.열쇠] = one;
    }
    await remember(no, body);
  }

  async function build(no: number, fresh: boolean): Promise<void> {
    try {
      const from = { 층: opt.scope.layer, 주인: opt.scope.owner, 키: key, 번: no };
      const got = await buildHopyo(opt.scope, from, fresh);
      const word = builtWord(got, fresh);
      const miss = got.빠진줄.length;
      showToast(miss ? `${word} — 빠진 줄 ${miss}` : word, miss ? "warning" : "success");
      await drawOne(no, { ...got, 새로: fresh });
    } catch (error) {
      fail(error);
    }
  }

  const missingBlock = (lines: HopyoLine[]): HTMLElement =>
    el("div", {
      className: "m02-hopyo__block",
      children: [
        el("h4", { text: `빠진 줄 ${lines.length} — 사전조합에 안 들어감` }),
        table(
          ["품명", "규격", "수량", "단위", "엑셀 금액", "까닭"],
          lines.map((x) =>
            el("tr", {
              children: [
                td(x.이름),
                td(x.규격),
                td(x.수량 === null ? "" : String(x.수량), "m02-hopyo__num"),
                td(x.단위),
                td(won(x.금액.계), "m02-hopyo__num"),
                td(STATE[x.맞춤.상태] ?? x.맞춤.상태),
              ],
            }),
          ),
        ),
      ],
    });

  function builtBlock(no: number, got: HopyoBuilt & { 새로: boolean }): HTMLElement {
    const c = got.비교;
    const again = got.다시씀
      ? [
          note(
            got.새로
              ? `사전조합 ${got.참조.키} 를 새로 만들어 덮음`
              : `있던 사전조합 ${got.참조.키} 를 다시 씀`,
          ),
          createButton({
            label: "새로 만들기",
            variant: "danger",
            size: "sm",
            onClick: async () => {
              const ask = `사전조합 ${got.참조.키} 를 지금 맞춤으로 다시 만들어 덮음`;
              if (await showConfirmDialog(ask, "새로 만들기")) await build(no, true);
            },
          }),
        ]
      : [note(`새 사전조합 ${got.참조.키}`)];
    return el("div", {
      className: "m02-hopyo__block m02-hopyo__built",
      attrs: { "data-built": got.참조.키 },
      children: [
        el("div", { className: "m02-hopyo__bar", children: again }),
        note(
          `값 비교 — 엑셀 ${won(c.엑셀)} · 우리 ${won(c.우리 === null ? null : Math.round(c.우리))}` +
            ` · 차이 ${won(c.차이)}${c.까닭 ? ` · ${c.까닭}` : ""}`,
        ),
      ],
    });
  }

  void drawFile();
  return view;
}