/* =============================================================================
 * M02_MyMachine_View.ts
 * M02 「내 기계」 화면(PLAN 821-3 · 요구서 796 3 장) — 좌측 「내 기계」 칸을 펼치면 가운데에 뜸(개인 층).
 *   목록 = 이름 · 규격 · 방식 · 시간당 경비(서버 셈) · 쓰는 곳 수 · 넣은 날 · 고친 날 · 찾기 · [새 기계]
 *   줄 누름 = 양식 한 장(`M02_MyMachine_Form`) · [목록] = 저장 안 한 고침이면 물음 · 저장 · 지우기 뒤 목록 다시
 * ========================================================================== */

import { createButton } from "@ui/ui_template_button";
import { createDataTable } from "@ui/ui_template_data_table";
import { createInputField, el, showConfirmDialog, showToast } from "@ui/ui_template_elements";
import { createText } from "@ui/ui_template_text";
import { listMyMachines, type MyMachineRow } from "./M02_MyMachine_Api";
import { mountMyMachineForm } from "./M02_MyMachine_Form";
import { mt, type MtKey } from "./M02_MyMachine_Text";
import "./M02_MyMachine.css";

export interface MyMachineViewOptions {
  owner: string | null;
  /** 저장 안 한 고침 표시(페이지 떠남 물음) */
  setDirty: (dirty: boolean) => void;
}

const day = (t: string | undefined): string => (t ?? "").slice(0, 10);

export function buildMyMachineView(opt: MyMachineViewOptions): HTMLElement {
  const host = el("div", { className: "m02-mymach-view" });
  let rows: MyMachineRow[] = [];
  let shown: MyMachineRow[] = [];
  let dirty = (): boolean => false;
  const mark = (d: boolean): void => opt.setDirty(d);

  const search = createInputField({ type: "search", placeholder: mt("Find") });
  const hint = createText("");
  const fail = el("div");
  const table = createDataTable({
    caption: mt("Title"),
    columns: [
      { key: "이름", label: mt("Name"), width: 180 },
      { key: "규격", label: mt("Spec"), width: 120 },
      { key: "방식", label: mt("How"), width: 100 },
      { key: "시간당", label: mt("Hourly"), kind: "number", decimals: 0, width: 110 },
      { key: "쓰는곳", label: mt("Uses_Count"), kind: "number", decimals: 0, width: 70 },
      { key: "넣은날", label: mt("Made"), width: 96 },
      { key: "고친날", label: mt("Edited"), width: 96 },
    ],
    rows: [],
    empty: mt("None"),
    onRowClick: (i) => shown[i] && void openForm(shown[i].키),
  });
  const draw = (): void => {
    const words = search.input.value.trim().toLowerCase().split(/\s+/).filter(Boolean);
    shown = rows.filter((r) => {
      const text = `${r.이름} ${r.규격} ${r.키}`.toLowerCase();
      return words.every((w) => text.includes(w));
    });
    hint.textContent = rows.length ? `${shown.length} / ${rows.length}` : "";
    table.setRows(
      shown.map((r) => ({
        이름: r.이름,
        규격: r.규격,
        방식: mt(r.방식 as MtKey),
        시간당: r.시간당.ok ? (r.시간당.계 ?? null) : null,
        쓰는곳: r.쓰는곳수,
        넣은날: day(r.넣은날),
        고친날: day(r.고친날),
      })),
    );
  };
  search.input.addEventListener("input", draw);

  const newBtn = createButton({
    label: mt("New"),
    variant: "filled",
    size: 28,
    onClick: () => void openForm(),
  });
  newBtn.dataset.mymachNew = "";
  const list = el("div", {
    className: "m02-mymach-view__list",
    children: [
      el("div", { className: "ui-toolbar", children: [newBtn, search.root, hint] }),
      createText(mt("Own_Note"), "muted"),
      fail,
      table.root,
    ],
  });

  async function showList(): Promise<void> {
    dirty = () => false;
    mark(false);
    host.replaceChildren(list);
    fail.replaceChildren();
    try {
      rows = await listMyMachines(opt.owner);
    } catch (error) {
      rows = [];
      fail.replaceChildren(
        createText(error instanceof Error ? error.message : mt("Personal_Only"), "error"),
      );
    }
    draw();
  }

  async function openForm(key?: string): Promise<void> {
    const slot = el("div");
    host.replaceChildren(slot);
    try {
      const h = await mountMyMachineForm(slot, {
        owner: opt.owner,
        key,
        onSaved: (got) => void openForm(got.줄.키),
        onDeleted: () => void showList(),
        onBack: async () => {
          if (!dirty() || (await showConfirmDialog(mt("Leave_Ask")))) await showList();
        },
        onDirty: mark,
      });
      dirty = h.dirty;
    } catch (error) {
      showToast(error instanceof Error ? error.message : mt("Failed"), "error");
      await showList();
    }
  }

  void showList();
  return host;
}