/* =============================================================================
 * E03_StabSection_UI_List.ts
 * E03 좌측 측점 목록(PLAN 532-3) — 측점 · 깎기/쌓기 · 조건별 최소 안전율 · 판정(아이콘 + 글) ·
 *   대표 단면 별(자동 = 채움 · 사용자 켬/끔 = 밑줄 · 누르면 바꿈). 정렬 · 거름은 logic `listRows`.
 * ========================================================================== */

import { createBadge, type BadgeTone } from "@ui/ui_template_badge";
import { createIconButton } from "@ui/ui_template_button";
import { el } from "@ui/ui_template_elements";
import { createEmpty } from "@ui/ui_template_empty";
import { t, type LocaleKey } from "@ui/ui_template_locale";
import { e03Table } from "./E03_StabSection_UI_Table";
import {
  listRows,
  roleText,
  verdictOf,
  type Condition,
  type SortMode,
  type StationRow,
} from "./logic/E03_StabSection_Logic";

const fmt = (v: number | null | undefined): string =>
  v === null || v === undefined || !Number.isFinite(v) ? "-" : v.toFixed(2);

export interface ListDraw {
  rows: StationRow[];
  conditions: Condition[];
  condition: Condition;
  sort: SortMode;
  ngOnly: boolean;
  active: string | null;
  /** 사용자 켬/끔 — 저장 전 캐시 포함 · 없으면 서버 값 */
  representative: (row: StationRow) => { on: boolean; user: boolean | null };
  editable: boolean;
}

const VERDICT_TONE: Record<string, BadgeTone> = { ok: "success", ng: "danger", none: "neutral" };

export function buildList(
  draw: ListDraw,
  onSelect: (key: string) => void,
  onToggle: (key: string) => void,
): HTMLElement {
  const box = el("div", { className: "e03-list" });
  const rows = listRows(draw.rows, draw.condition, draw.sort, draw.ngOnly);
  const columns = [
    { label: t("E03_Col_Station") },
    { label: t("E03_Col_Role") },
    ...draw.conditions.map((c) => ({ label: t(`E03_Cond_${c}` as LocaleKey), num: true })),
    { label: t("E03_Verdict") },
    { label: t("E03_Col_Rep"), title: t("E03_Rep_Hint") },
  ];
  const cells = rows.map((row) => {
    const v = verdictOf(row, draw.condition);
    const rep = draw.representative(row);
    const title =
      [
        ...(row.representative?.auto ?? []).map((r) => t(`E03_Rep_${r}` as LocaleKey)),
        rep.user !== null ? t("E03_Rep_User") : "",
      ]
        .filter(Boolean)
        .join(" · ") || t("E03_Rep_Hint");
    const star = createIconButton({
      glyph: rep.on ? "★" : "☆",
      title,
      size: 20,
      pressed: rep.on,
      disabled: !draw.editable,
      onClick: (ev) => {
        ev.stopPropagation();
        onToggle(row.key);
      },
    });
    star.classList.add("e03-star");
    star.classList.toggle("is-on", rep.on);
    star.classList.toggle("is-user", rep.user !== null);
    const verdict = createBadge(
      row.error ? t("E03_Error") : v === "none" ? "-" : t(`E03_Verdict_${v}` as LocaleKey),
      VERDICT_TONE[v],
      { kind: "lamp" },
    );
    verdict.classList.add("e03-verdict", `e03-verdict--${v}`);
    const station = el("span", {
      text: row.label?.replace(/^STA\./, "").replace(/\.000$/, "") ?? row.key,
      children: row.walls
        ? [el("span", { className: "e03-wall-tag", text: "▦", attrs: { title: t("E03_Walls") } })]
        : [],
    });
    return [
      station,
      row.sides.length ? roleText(row, { cut: t("E03_CutShort"), fill: t("E03_FillShort") }) : "-",
      ...draw.conditions.map((c) => fmt(row.min[c])),
      verdict,
      star,
    ];
  });
  const list = e03Table(columns, cells, "station-list");
  list.table.tHead?.rows[0].cells
    .item(2 + draw.conditions.indexOf(draw.condition))
    ?.setAttribute("aria-sort", "other");
  list.rows.forEach((tr, i) => {
    const row = rows[i];
    tr.dataset.key = row.key;
    tr.dataset.verdict = verdictOf(row, draw.condition);
    tr.classList.toggle("is-active", row.key === draw.active);
    if (row.error) tr.title = row.error;
    tr.addEventListener("click", () => onSelect(row.key));
  });
  box.append(list.root);
  if (!rows.length) box.append(hookEmpty(t("E03_ListEmpty")));
  queueMicrotask(() => box.querySelector("tr.is-active")?.scrollIntoView({ block: "nearest" }));
  return box;
}

function hookEmpty(text: string): HTMLElement {
  const empty = createEmpty({ text, small: true });
  empty.classList.add("e03-empty");
  return empty;
}