/* =============================================================================
 * 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 { el } from "@ui/ui_template_elements";
import { t, type LocaleKey } from "@ui/ui_template_locale";
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;
}

export function buildList(
  draw: ListDraw,
  onSelect: (key: string) => void,
  onToggle: (key: string) => void,
): HTMLElement {
  const box = el("div", { className: "e03-list" });
  const table = el("table", { attrs: { "data-role": "station-list" } });
  const head = el("tr");
  head.append(
    el("th", { text: t("E03_Col_Station") }),
    el("th", { text: t("E03_Col_Role") }),
    ...draw.conditions.map((c) =>
      el("th", {
        className: "is-num",
        text: t(`E03_Cond_${c}` as LocaleKey),
        attrs: c === draw.condition ? { "aria-sort": "other" } : {},
      }),
    ),
    el("th", { text: t("E03_Verdict") }),
    el("th", { text: t("E03_Col_Rep"), attrs: { title: t("E03_Rep_Hint") } }),
  );
  table.append(el("thead", { children: [head] }));
  const body = el("tbody");
  const rows = listRows(draw.rows, draw.condition, draw.sort, draw.ngOnly);
  for (const row of rows) {
    const tr = el("tr", {
      className: row.key === draw.active ? "is-active" : "",
      attrs: { "data-key": row.key, "data-verdict": verdictOf(row, draw.condition) },
    });
    const v = verdictOf(row, draw.condition);
    const rep = draw.representative(row);
    const star = el("button", {
      className: `e03-star${rep.on ? " is-on" : ""}${rep.user !== null ? " is-user" : ""}`,
      text: rep.on ? "★" : "☆",
      attrs: {
        type: "button",
        title:
          [
            ...(row.representative?.auto ?? []).map((r) => t(`E03_Rep_${r}` as LocaleKey)),
            rep.user !== null ? t("E03_Rep_User") : "",
          ]
            .filter(Boolean)
            .join(" · ") || t("E03_Rep_Hint"),
        "aria-pressed": String(rep.on),
      },
    });
    star.disabled = !draw.editable;
    star.addEventListener("click", (ev) => {
      ev.stopPropagation();
      onToggle(row.key);
    });
    tr.append(
      el("td", {
        text: row.label?.replace(/^STA\./, "").replace(/\.000$/, "") ?? row.key,
        children: row.walls
          ? [el("span", { className: "e03-wall-tag", text: "▦", attrs: { title: t("E03_Walls") } })]
          : [],
      }),
      el("td", {
        text: row.sides.length
          ? roleText(row, { cut: t("E03_CutShort"), fill: t("E03_FillShort") })
          : "-",
      }),
      ...draw.conditions.map((c) => el("td", { className: "is-num", text: fmt(row.min[c]) })),
      el("td", {
        children: [
          el("span", {
            className: `e03-verdict e03-verdict--${v}`,
            text: row.error
              ? t("E03_Error")
              : v === "none"
                ? "-"
                : t(`E03_Verdict_${v}` as LocaleKey),
          }),
        ],
      }),
      el("td", { children: [star] }),
    );
    if (row.error) tr.title = row.error;
    tr.addEventListener("click", () => onSelect(row.key));
    body.append(tr);
  }
  table.append(body);
  box.append(table);
  if (!rows.length) box.append(el("p", { className: "e03-empty", text: t("E03_ListEmpty") }));
  queueMicrotask(() => box.querySelector("tr.is-active")?.scrollIntoView({ block: "nearest" }));
  return box;
}