/* =============================================================================
 * B09_Estimation_UI_Dock.ts
 * B09 좌측 하단 고정 줄(PLAN 303-1 · 304-1) — 위에서부터
 *   ① [박스보기|호표보기] 묶음 탭 셋 보기(304-1 · 한 값)
 *   ② [하이퍼링크|팝업] 행 누름(303 · 기본 팝업)
 *   ③ `DRAFT.actions` 단추(초안 · 비면 줄 없음)
 *   ④ [?][저장][내역 초기화](도움말 줄 `data-help-row`)
 *
 *   스위치 값 = pref global(계정 공용 · [저장] 필요 없음) · 바닥 고정 = 공용 `.ui-sidebar-actions` 한 벌
 * ========================================================================== */

import { createButton } from "@ui/ui_template_elements";
import { readState, writeState } from "../A00_Common/b_page_state";
import { DRAFT } from "./B09_Estimation_UI_Tabs";
import {
  chooseGroupView,
  groupView,
  viewLabel,
  type GroupView,
} from "./B09_Estimation_UI_Tabs_Groups";

export type LinkMode = "popup" | "link";

const LINK_LABEL: Record<LinkMode, string> = { link: "하이퍼링크", popup: "팝업" };

/** 행 누름 길 — 모르는 값 · 못 읽음 = 팝업 */
export function linkMode(): LinkMode {
  try {
    return readState<unknown>("b09-link-mode") === "link" ? "link" : "popup";
  } catch {
    return "popup";
  }
}

function setLinkMode(mode: LinkMode): void {
  try {
    writeState("b09-link-mode", mode);
  } catch {
    // 기억 못 하면 기본(팝업)으로 돌아감
  }
}

/** 단추 둘 스위치 — 켜진 쪽 filled · aria-pressed */
function switchRow<T extends string>(
  name: string,
  values: T[],
  label: (value: T) => string,
  current: () => T,
  pick: (value: T) => void,
): HTMLElement {
  const row = document.createElement("div");
  row.className = "ui-btn-group b09-dock__row";
  row.dataset.b09Switch = name;
  const buttons = values.map((value) => {
    const button = createButton({
      label: label(value),
      variant: "ghost",
      onClick: () => {
        if (value === current()) return;
        pick(value);
        sync();
      },
    });
    button.dataset.value = value;
    return button;
  });
  const sync = (): void =>
    buttons.forEach((button, k) => {
      const on = values[k] === current();
      button.classList.toggle("ui-btn--filled", on);
      button.classList.toggle("ui-btn--ghost", !on);
      button.setAttribute("aria-pressed", String(on));
    });
  sync();
  row.append(...buttons);
  return row;
}

/** 하단 고정 줄 — onView = 보기 바뀜(묶음 탭이면 다시 그림) */
export function createDock(buttons: HTMLElement[], onView: () => void): HTMLElement {
  const views: GroupView[] = ["cards", "table"];
  const view = switchRow("view", views, viewLabel, groupView, (value) => {
    chooseGroupView(value);
    onView();
  });
  const link = switchRow<LinkMode>(
    "link",
    ["link", "popup"],
    (mode) => LINK_LABEL[mode],
    linkMode,
    setLinkMode,
  );
  const extra = DRAFT.actions.map((make) => make());
  const draft = document.createElement("div");
  draft.className = "b09-dock__row";
  draft.dataset.b09DraftActions = "";
  draft.append(...extra);
  const main = document.createElement("div");
  main.className = "b09-dock__row";
  main.dataset.helpRow = "";
  main.append(...buttons);
  const dock = document.createElement("div");
  dock.className = "ui-sidebar-actions b09-dock";
  dock.append(view, link, ...(extra.length ? [draft] : []), main);
  return dock;
}