/* =============================================================================
 * M02_MasterTemplete_Hopyo_Imported.ts
 * 불러오기 단산 블록 [가져온 식으로 열기] 모달(PLAN 793-3b · 809-1 · 요구 646 · 702) —
 * 엑셀 보기 단가산출 탭 목록(`Hopyo_SheetSk`)이 엶 · 경쟁사 로직 그대로(기초로 바꾸기 없음 · 요구 703).
 *  · 열기 = 서버 `…/sangeun/from-hopyo`(그 블록 → 가져온 식 SK · 만들 층 · 엑셀 단가 그대로 · 같은 내용 = 그 SK 다시 씀)
 *    → 그 SK 를 읽어 우리 단가산출 화면(`Sangeun_Detail` 시트 · 고침 = 시트 그대로) + 머리 판(`Hopyo_ImportedPanel`)
 *  · [우리 단가로] · [엑셀 단가로] · [이음 고르기] = 서버 `…/sangeun/imported/{price|link}`
 *    (화면 캐시 문서 고침 · 저장 없음) → 시트 다시 엶
 *  · [이음 보기](797-2) = 소요량 · 계수 후보 모달(`Hopyo_QtyLinks`) — 고르기 · 버리기 = 서버 `…/imported/{qty|qty-pick|qty-drop}`(기록만 · 금액 그대로)
 *  · [저장] = 그 SK 저장(서버가 다시 셈)
 * ========================================================================== */

import { createButton } from "@ui/ui_template_button";
import { el, showToast } from "@ui/ui_template_elements";
import { loadingError, showLoading } from "@ui/ui_template_loading";
import { currentLanguageIndex } from "@ui/ui_template_locale";
import { askConfirm, openModal } from "@ui/ui_template_modal";
import { call, readTemplate, saveTemplate } from "./M02_MasterTemplete_Api_Fetch";
import { openFindPicker } from "./M02_MasterTemplete_Find_Pick";
import { at, type HopyoScope } from "./M02_MasterTemplete_Hopyo_Api";
import { importedPanel, type PanelState } from "./M02_MasterTemplete_Hopyo_ImportedPanel";
import { openQtyLinks, type QtyRow, type QtyTally } from "./M02_MasterTemplete_Hopyo_QtyLinks";
import { mountSangeunDetail } from "./M02_MasterTemplete_Sangeun_Detail";
import { type ImportedDoc, type Money4 } from "./logic/M02_Hopyo_Imported_Model";

const TEXT = {
  Title: ["가져온 식 단가산출 — 단산{n}", "Imported build-up — block {n}"],
  Reused: ["같은 내용 {k} 를 다시 씀", "Reusing same content {k}"],
  Made: ["{k} 만듦(엑셀 단가 그대로)", "{k} made (Excel prices)"],
  Save: ["저장", "Save"],
  Saved: ["{k} 저장함", "{k} saved"],
  Discard: ["저장 안 한 고침이 있음 — 버리고 닫을까?", "Discard unsaved edits?"],
  Close: ["닫기", "Close"],
} as const satisfies Record<string, readonly [string, string]>;
const t = (k: keyof typeof TEXT): string => TEXT[k][currentLanguageIndex as 0 | 1] ?? TEXT[k][0];
const why = (e: unknown): string => (e instanceof Error ? e.message : String(e));

export interface ImportedOptions {
  /** 실무자료 파일 층 */
  file: HopyoScope;
  key: string;
  /** 단산 블록 번 */
  no: number;
  /** SK 를 만들 층 */
  target: HopyoScope;
  canWrite: boolean;
}

interface Made {
  이름: string;
  다시씀: boolean;
}

const fromHopyo = (o: ImportedOptions): Promise<Made> =>
  call(at(o.target, "/sangeun/from-hopyo"), {
    method: "POST",
    body: JSON.stringify({ 층: o.file.layer, ...(o.file.owner ? { 주인: o.file.owner } : {}), 키: o.key, 번: o.no }), // prettier-ignore
  });

interface EditAnswer {
  문서: ImportedDoc;
  전?: Money4 | null;
  후?: Money4 | null;
  이음없음?: { 자리: string; 이름: string; 까닭?: string; 견적?: boolean }[];
  /** qty 답(797-2) */
  줄?: QtyRow[];
  집계?: QtyTally;
}

export function openImported(o: ImportedOptions): void {
  const readOnly = !o.canWrite;
  const root = el("div", {
    className: "m02-hopyo",
    attrs: { "data-imported": `${o.key}|${o.no}` },
  });
  const top = el("div");
  const host = el("div", { attrs: { "data-sk-body": "" } });
  let sk = "";
  let 판 = "";
  let dirty = false;
  let handle: ReturnType<typeof mountSangeunDetail> | null = null;
  const st: PanelState = { doc: {}, unlinked: [], qty: null, price: null, busy: false, readOnly }; // prettier-ignore

  const edit = (how: string, body: Record<string, unknown>): Promise<EditAnswer> =>
    call(at(o.target, `/sangeun/imported/${how}`), { method: "POST", body: JSON.stringify(body) });

  function mount(doc: ImportedDoc): void {
    handle?.destroy();
    st.doc = doc;
    handle = mountSangeunDetail(host, doc, {
      layer: o.target.layer,
      owner: o.target.owner,
      readOnly,
      onChanged: (d) => (dirty ||= d),
    });
    draw();
  }
  const now = (): ImportedDoc => (handle?.getDoc() as ImportedDoc | undefined) ?? st.doc;

  function draw(): void {
    top.replaceChildren(importedPanel(st, { price, link, qty: openQty }));
    saveBtn.disabled = readOnly || st.busy;
  }

  /** 서버 고침 한 번(눌림 막음) → 시트 다시 엶 */
  async function run(
    how: string,
    body: Record<string, unknown>,
    from: ImportedDoc = now(),
  ): Promise<EditAnswer | null> {
    st.busy = true;
    draw();
    try {
      const got = await edit(how, { 문서: from, ...body });
      dirty = true;
      mount(got.문서);
      return got;
    } catch (e) {
      showToast(why(e), "error");
      return null;
    } finally {
      st.busy = false;
      draw();
    }
  }

  /** 이음 없는 자원 — 단가 기준 그대로 price 답(전 · 후 = 지금) */
  async function unlinked(): Promise<void> {
    if (!st.doc.가져온?.로직) return void (st.unlinked = []);
    const got = await edit("price", { 문서: st.doc, 기준: st.doc.가져온.단가기준 ?? "엑셀" }).catch(() => null); // prettier-ignore
    st.unlinked = got?.이음없음 ?? [];
    draw();
  }

  /** 소요량 · 계수 이음 집계(797-2) — 가져온 식일 때만 */
  async function qtyTally(): Promise<void> {
    if (!st.doc.가져온?.로직) return void (st.qty = null);
    const got = await edit("qty", { 문서: st.doc }).catch(() => null);
    st.qty = got?.집계 ?? null;
    draw();
  }

  function openQty(): void {
    openQtyLinks(
      {
        view: async () => {
          const got = await edit("qty", { 문서: now() });
          return { 줄: got.줄 ?? [], 집계: got.집계! };
        },
        pick: async (spot, c) => {
          await run("qty-pick", { 자리: spot, 칸: { 표: c.표, 줄: c.줄, 칸: c.칸 } });
          await qtyTally();
        },
        drop: async (spot, undo) => {
          await run("qty-drop", { 자리: spot, 되돌리기: undo });
          await qtyTally();
        },
      },
      readOnly,
    );
  }

  async function price(basis: "엑셀" | "우리"): Promise<void> {
    const got = await run("price", { 기준: basis });
    if (got) st.price = { 전: got.전 ?? null, 후: got.후 ?? null };
    draw();
  }

  function link(spot: string, name: string): void {
    const done = (code: string): void => void run("link", { 자리: spot, 이음: code }).then(() => unlinked()); // prettier-ignore
    openFindPicker({
      layer: o.target.layer,
      owner: o.target.owner,
      query: name,
      logic: (x) => done(`로직(${x.키})`),
      element: (e) => done(e.코드),
      machine: (e) => done(e.코드),
      oil: (e) => done(e.코드),
    });
  }

  async function save(): Promise<boolean> {
    try {
      const doc = now();
      const info = await saveTemplate(o.target.layer, "sangeun", sk, null, 판, doc, o.target.owner);
      판 = info.판;
      st.doc = doc;
      dirty = false;
      showToast(t("Saved").replace("{k}", sk), "success");
      return true;
    } catch (e) {
      showToast(why(e), "error");
      return false;
    }
  }

  const saveBtn = createButton({ label: t("Save"), variant: "filled", onClick: () => void save() });
  saveBtn.dataset.importedSave = "";
  saveBtn.disabled = true;

  async function load(): Promise<void> {
    const stop = showLoading(root);
    try {
      const made = await fromHopyo(o);
      sk = made.이름;
      showToast((made.다시씀 ? t("Reused") : t("Made")).replace("{k}", sk), "info");
      const got = await readTemplate(o.target.layer, "sangeun", sk, null, o.target.owner);
      판 = got.판 ?? "";
      root.replaceChildren(top, host);
      mount(got.문서 as ImportedDoc);
      void unlinked();
      void qtyTally();
    } catch (e) {
      root.replaceChildren(loadingError(why(e), () => void load()));
    } finally {
      stop();
    }
  }

  openModal({
    title: t("Title").replace("{n}", String(o.no)),
    closeLabel: t("Close"),
    width: "1100px",
    wide: true,
    dialogClass: "m02-modal m02-hopyo__imported-modal",
    actions: [saveBtn],
    beforeClose: async () => {
      if (dirty && !readOnly && !(await askConfirm({ message: t("Discard"), danger: true })))
        return false;
      handle?.destroy();
      return true;
    },
    mount: (body) => body.append(root),
  });
  void load();
}