(function () {
  const toast = document.getElementById("toast");
  let settingsCache = null;
  let monitorTimer = null;
  let authState = { required: false, logged_in: true };
  let tpslPending = null;
  let lastMonitorRows = [];
  let expandedExchangeId = sessionStorage.getItem("hub_expanded_ex") || "";

  async function apiFetch(url, opts) {
    const r = await fetch(url, opts);
    if (r.status === 401) {
      const next = encodeURIComponent(location.pathname + location.search);
      location.href = "/login?next=" + next;
      throw new Error("未登录");
    }
    return r;
  }

  async function openInstanceInBrowser(exchangeId, nextPath) {
    const next = nextPath || "/";
    try {
      const q = new URLSearchParams({ exchange_id: String(exchangeId), next });
      const r = await apiFetch("/api/instance/open-url?" + q.toString());
      const j = await r.json();
      if (j.ok && j.url) {
        window.open(j.url, "_blank", "noopener");
        return;
      }
      showToast(j.detail || "无法生成打开链接", true);
    } catch (e) {
      showToast(String(e), true);
    }
  }

  async function initAuth() {
    try {
      const r = await fetch("/api/auth/status");
      authState = await r.json();
      const btn = document.getElementById("btn-logout");
      if (btn) btn.style.display = authState.required ? "" : "none";
      if (authState.required && !authState.logged_in) {
        location.href =
          "/login?next=" + encodeURIComponent(location.pathname + location.search);
        return false;
      }
      return true;
    } catch (_) {
      return true;
    }
  }

  function showToast(msg, isErr) {
    toast.textContent = msg;
    toast.style.borderColor = isErr ? "var(--red)" : "var(--border)";
    toast.classList.add("show");
    clearTimeout(showToast._t);
    showToast._t = setTimeout(() => toast.classList.remove("show"), 7000);
  }

  function esc(s) {
    return String(s)
      .replace(/&/g, "&")
      .replace(/</g, "&lt;")
      .replace(/>/g, "&gt;")
      .replace(/"/g, "&quot;");
  }

  function fmt(n, d) {
    if (n === null || n === undefined || Number.isNaN(Number(n))) return "—";
    return Number(n).toLocaleString(undefined, { maximumFractionDigits: d });
  }

  function pnlCls(v) {
    const n = Number(v);
    if (!Number.isFinite(n) || n === 0) return "";
    return n > 0 ? "pnl-pos" : "pnl-neg";
  }

  /** 全屏持仓区：按仓位数量附加布局 class（1～6 固定列数，7+ 自动填充） */
  function hubPosListCountClass(n) {
    const c = Math.max(0, parseInt(n, 10) || 0);
    if (c <= 0) return "count-0";
    if (c <= 6) return `count-${c}`;
    return "count-many";
  }

  function currentPage() {
    const p = window.location.pathname.replace(/\/$/, "") || "/monitor";
    if (p.includes("settings")) return "settings";
    return "monitor";
  }

  function setActiveNav() {
    const page = currentPage();
    document.querySelectorAll(".top-nav a").forEach((a) => {
      a.classList.toggle("active", a.getAttribute("href").includes(page));
    });
    document.querySelectorAll(".page").forEach((el) => {
      el.classList.toggle("hidden", !el.id.includes(page));
    });
    if (page === "monitor") startMonitorPoll();
    else stopMonitorPoll();
    if (page === "settings") loadSettingsUI();
  }

  function stopMonitorPoll() {
    clearInterval(monitorTimer);
    monitorTimer = null;
  }

  function startMonitorPoll() {
    stopMonitorPoll();
    loadMonitorBoard();
    if (document.getElementById("auto-monitor").checked) {
      monitorTimer = setInterval(loadMonitorBoard, 5000);
    }
  }

  async function loadSettings() {
    const r = await apiFetch("/api/settings");
    settingsCache = await r.json();
    return settingsCache;
  }

  function enabledAccounts() {
    return (settingsCache?.exchanges || []).filter((x) => x.enabled);
  }

  function isMobileLayout() {
    return window.matchMedia("(max-width: 720px)").matches;
  }

  /** 监控卡片列数：桌面 3/2 列；手机端固定单列 */
  function syncMonitorGridColumns(gridEl, count) {
    if (!gridEl) return;
    if (isMobileLayout()) {
      gridEl.style.gridTemplateColumns = "minmax(0, 1fr)";
      return;
    }
    let cols = 3;
    if (count <= 1) cols = 1;
    else if (count === 2) cols = 2;
    else if (count === 3) cols = 3;
    else if (count === 4) cols = 2;
    else cols = 3;
    gridEl.style.gridTemplateColumns = `repeat(${cols}, minmax(0, 1fr))`;
  }

  function initMobileLayout() {
    let resizeTimer = null;
    window.addEventListener("resize", () => {
      clearTimeout(resizeTimer);
      resizeTimer = setTimeout(() => {
        const box = document.getElementById("monitor-grid");
        if (box && lastMonitorRows.length) {
          syncMonitorGridColumns(box, lastMonitorRows.length);
        }
      }, 120);
    });
  }

  function normSym(s) {
    return String(s || "")
      .toUpperCase()
      .replace(/:USDT$/i, "")
      .replace(/\/USDT:USDT$/i, "")
      .replace(/\/USDT$/i, "");
  }

  function symbolsMatchHub(a, b) {
    const x = normSym(a);
    const y = normSym(b);
    if (!x || !y) return false;
    return x === y;
  }

  function ordersCollapseKey(exchangeId, symbol) {
    const sym = normSym(symbol) || "unknown";
    return `hub_orders_${exchangeId}_${sym}`;
  }

  function isOrdersCollapseOpen(exchangeId, symbol) {
    return localStorage.getItem(ordersCollapseKey(exchangeId, symbol)) === "1";
  }

  function condOrdersFromPosition(pos) {
    const cond = Array.isArray(pos.conditional_orders) ? pos.conditional_orders : [];
    if (cond.length) return cond;
    const et = pos.exchange_tpsl;
    if (!et) return [];
    const out = [];
    if (et.sl && et.sl.trigger_price != null) {
      out.push({
        label: "止损",
        trigger_price: Number(et.sl.trigger_price),
        amount: null,
        id: et.sl.order_id,
        channel: "algo",
      });
    }
    if (et.tp && et.tp.trigger_price != null) {
      out.push({
        label: "止盈",
        trigger_price: Number(et.tp.trigger_price),
        amount: null,
        id: et.tp.order_id,
        channel: "algo",
      });
    }
    return out;
  }

  function findMonitorOrder(orders, symbol, side) {
    const want = (side || "").toLowerCase();
    for (const o of orders || []) {
      const sym = o.exchange_symbol || o.symbol || "";
      if (!symbolsMatchHub(sym, symbol)) continue;
      const d = (o.direction || "").toLowerCase();
      if (!d || d === want) return o;
    }
    return null;
  }

  function calcRrRatio(side, entry, sl, tp) {
    const e = Number(entry);
    const s = Number(sl);
    const t = Number(tp);
    if (![e, s, t].every((n) => Number.isFinite(n) && n > 0)) return null;
    if ((side || "long").toLowerCase() === "short") {
      const risk = s - e;
      const reward = e - t;
      if (risk <= 0 || reward <= 0) return null;
      return reward / risk;
    }
    const risk = e - s;
    const reward = t - e;
    if (risk <= 0 || reward <= 0) return null;
    return reward / risk;
  }

  async function loadMonitorBoard() {
    const box = document.getElementById("monitor-grid");
    const showLoading = !lastMonitorRows.length;
    if (showLoading && box) {
      box.innerHTML =
        '<div class="board-loading"><span class="board-loading-spin" aria-hidden="true"></span>正在聚合四所数据…</div>';
    }
    try {
      const r = await apiFetch("/api/monitor/board");
      const data = await r.json();
      lastMonitorRows = data.rows || [];
      const online = lastMonitorRows.filter(
        (x) => x.http_ok && (x.agent || {}).ok !== false
      ).length;
      const pill = document.getElementById("sys-status");
      if (pill) {
        pill.textContent = lastMonitorRows.length
          ? `LINK ${online}/${lastMonitorRows.length}`
          : "NO DATA";
        pill.classList.toggle("warn", lastMonitorRows.length && online < lastMonitorRows.length);
      }
      document.getElementById("monitor-updated").textContent =
        "UPD " + (data.updated_at || "").replace("T", " ");
      renderMonitorGrid(lastMonitorRows);
    } catch (e) {
      box.innerHTML = `<div class="err">${esc(e)}</div>`;
    }
  }

  function closeExchangeFullscreen() {
    expandedExchangeId = "";
    sessionStorage.removeItem("hub_expanded_ex");
    const fs = document.getElementById("exchange-fullscreen");
    if (fs) {
      fs.classList.add("hidden");
      fs.setAttribute("aria-hidden", "true");
    }
    document.body.classList.remove("hub-fullscreen-open");
  }

  function openExchangeFullscreen(exId) {
    expandedExchangeId = String(exId);
    sessionStorage.setItem("hub_expanded_ex", expandedExchangeId);
    renderMonitorGrid(lastMonitorRows);
  }

  function renderMonitorGrid(rows) {
    const box = document.getElementById("monitor-grid");
    const fs = document.getElementById("exchange-fullscreen");
    const fsInner = document.getElementById("exchange-fullscreen-inner");
    if (!box) return;
    if (expandedExchangeId && !rows.some((r) => String(r.id) === String(expandedExchangeId))) {
      closeExchangeFullscreen();
    }
    box.innerHTML =
      rows.map((r) => renderMonitorCard(r)).join("") || '<div class="err">无已启用账户</div>';
    syncMonitorGridColumns(box, rows.length);
    bindMonitorInteractions(box);

    if (expandedExchangeId && fs && fsInner) {
      const row = rows.find((r) => String(r.id) === String(expandedExchangeId));
      if (row) {
        try {
          fsInner.innerHTML = renderFullscreenExchange(row);
          fs.classList.remove("hidden");
          fs.setAttribute("aria-hidden", "false");
          document.body.classList.add("hub-fullscreen-open");
          bindMonitorInteractions(fsInner);
          fsInner.querySelectorAll(".btn-expand-back").forEach((btn) => {
            btn.onclick = (ev) => {
              ev.stopPropagation();
              closeExchangeFullscreen();
              renderMonitorGrid(lastMonitorRows);
            };
          });
        } catch (err) {
          console.error("renderFullscreenExchange", err);
          closeExchangeFullscreen();
          showToast("全屏渲染失败: " + err, true);
        }
      } else {
        closeExchangeFullscreen();
      }
    } else {
      closeExchangeFullscreen();
    }
  }

  function bindMonitorInteractions(box) {
    box.querySelectorAll(".btn-open-instance").forEach((btn) => {
      btn.onclick = (ev) => {
        ev.preventDefault();
        ev.stopPropagation();
        openInstanceInBrowser(btn.dataset.exId, btn.dataset.next || "/");
      };
    });
    box.querySelectorAll(".btn-close-ex").forEach((btn) => {
      btn.onclick = () => closeOne(btn.dataset.id);
    });
    box.querySelectorAll(".btn-close-pos").forEach((btn) => {
      btn.onclick = (ev) => {
        ev.stopPropagation();
        closeOnePosition(btn.dataset.exId, btn.dataset.symbol, btn.dataset.side);
      };
    });
    box.querySelectorAll(".btn-cancel-order").forEach((btn) => {
      btn.onclick = (ev) => {
        ev.stopPropagation();
        cancelOneOrder(
          btn.dataset.exId,
          btn.dataset.symbol,
          btn.dataset.orderId,
          btn.dataset.channel
        );
      };
    });
    box.querySelectorAll(".btn-cancel-cond-all").forEach((btn) => {
      btn.onclick = (ev) => {
        ev.preventDefault();
        ev.stopPropagation();
        cancelSymbolOrders(btn.dataset.exId, btn.dataset.symbol, "conditional");
      };
    });
    box.querySelectorAll(".btn-place-tpsl").forEach((btn) => {
      btn.onclick = (ev) => {
        ev.stopPropagation();
        openTpslModal(
          btn.dataset.exId,
          btn.dataset.symbol,
          btn.dataset.side,
          btn.dataset.contracts,
          btn.dataset.sl || "",
          btn.dataset.tp || ""
        );
      };
    });
    box.querySelectorAll(".card-expand-zone").forEach((zone) => {
      zone.onclick = (ev) => {
        if (ev.target.closest("a, button, input, summary, details, .card-actions")) return;
        const id = zone.closest(".card")?.dataset.exId;
        if (id) openExchangeFullscreen(id);
      };
    });
    box.querySelectorAll("details.pos-orders-collapse[data-collapse-key]").forEach((el) => {
      el.addEventListener("toggle", () => {
        const k = el.dataset.collapseKey;
        if (k) localStorage.setItem(k, el.open ? "1" : "0");
      });
    });
  }

  function renderOrderRows(exchangeId, symbol, orders, kind) {
    if (!orders || !orders.length) {
      const hint =
        kind === "conditional"
          ? "暂无条件单（止盈/止损等）"
          : "暂无普通委托";
      return `<div class="order-empty">${hint}</div>`;
    }
    const symAttr = esc(symbol || "").replace(/"/g, "&quot;");
    const rows = orders
      .map((o) => {
        const oidAttr = esc(o.id || "").replace(/"/g, "&quot;");
        const chAttr = esc(o.channel || "regular").replace(/"/g, "&quot;");
        const trig =
          o.trigger_price != null ? fmt(o.trigger_price, 4) : o.price != null ? fmt(o.price, 4) : "—";
        return `<tr>
          <td>${esc(o.label || o.type || "委托")}</td>
          <td>${fmt(o.amount, 4)}</td>
          <td>${trig}</td>
          <td class="td-actions"><button type="button" class="btn-cancel-order ghost" data-ex-id="${esc(exchangeId)}" data-symbol="${symAttr}" data-order-id="${oidAttr}" data-channel="${chAttr}">撤单</button></td>
        </tr>`;
      })
      .join("");
    return `<table class="data-table data-table-sub"><thead><tr><th>类型</th><th>数量</th><th>触发/价格</th><th>操作</th></tr></thead><tbody>${rows}</tbody></table>`;
  }

  function guessTpslFromCondOrders(side, cond) {
    const triggers = (cond || [])
      .map((o) => o.trigger_price)
      .filter((v) => v != null && !Number.isNaN(Number(v)))
      .map(Number);
    if (!triggers.length) return { sl: "", tp: "" };
    triggers.sort((a, b) => a - b);
    const s = (side || "long").toLowerCase();
    if (s === "short") {
      return { sl: triggers[triggers.length - 1], tp: triggers[0] };
    }
    return { sl: triggers[0], tp: triggers[triggers.length - 1] };
  }

  function renderOrdersCollapse(exchangeId, symbol, cond, reg) {
    const symAttr = esc(symbol || "").replace(/"/g, "&quot;");
    const orderTotal = cond.length + reg.length;
    const collapseKey = ordersCollapseKey(exchangeId, symbol);
    const openAttr = isOrdersCollapseOpen(exchangeId, symbol) ? " open" : "";
    const condAllBtn =
      cond.length > 0
        ? `<button type="button" class="btn-cancel-cond-all btn-sm ghost" data-ex-id="${esc(exchangeId)}" data-symbol="${symAttr}">撤销条件单</button>`
        : "";
    const condBody = renderOrderRows(exchangeId, symbol, cond, "conditional");
    const regBody = renderOrderRows(exchangeId, symbol, reg, "limit");
    return `<details class="pos-orders-collapse"${openAttr} data-collapse-key="${esc(collapseKey)}">
        <summary class="pos-orders-collapse-summary">
          <span class="pos-orders-collapse-label">委托单 <em>${orderTotal}</em></span>
          <span class="pos-orders-collapse-meta">条件 ${cond.length} · 普通 ${reg.length}</span>
          ${condAllBtn}
        </summary>
        <div class="pos-orders-collapse-body">
          <div class="orders-section">
            <div class="orders-section-head">条件单</div>
            ${condBody}
          </div>
          <div class="orders-section">
            <div class="orders-section-head">普通委托</div>
            ${regBody}
          </div>
        </div>
      </details>`;
  }

  function pickExTpslOrders(cond) {
    let sl = cond.find((o) => /^止损\b/.test(o.label || ""));
    let tp = cond.find((o) => /^止盈\b/.test(o.label || "") && !(o.label || "").includes("止盈止损"));
    if (!sl || !tp) {
      const combo = cond.find((o) => (o.label || "").includes("止盈止损"));
      if (combo) {
        const m = (combo.label || "").match(/SL=([\d.eE+-]+).*TP=([\d.eE+-]+)/i);
        if (m) {
          if (!sl) sl = { ...combo, label: "止损", trigger_price: Number(m[1]) };
          if (!tp) tp = { ...combo, label: "止盈", trigger_price: Number(m[2]) };
        }
      }
    }
    if (!sl) sl = cond.find((o) => (o.label || "").includes("止损"));
    if (!tp) tp = cond.find((o) => (o.label || "").includes("止盈") && o !== sl);
    return { sl, tp };
  }

  function renderExTpslRows(exchangeId, symbol, cond) {
    const symAttr = esc(symbol || "").replace(/"/g, "&quot;");
    const { sl, tp } = pickExTpslOrders(cond);
    function row(label, o) {
      if (!o) {
        return `<div class="pos-ex-order-row"><span class="pos-ex-order-main">${label}：—</span></div>`;
      }
      const oid = esc(o.id || "").replace(/"/g, "&quot;");
      const ch = esc(o.channel || "regular").replace(/"/g, "&quot;");
      const trig = o.trigger_price != null ? fmt(o.trigger_price, 4) : "—";
      return `<div class="pos-ex-order-row">
        <span class="pos-ex-order-main">${label}：触发 ${trig} · 数量 ${fmt(o.amount, 4)}</span>
        <button type="button" class="pos-ex-cancel-btn btn-cancel-order" data-ex-id="${esc(exchangeId)}" data-symbol="${symAttr}" data-order-id="${oid}" data-channel="${ch}">撤单</button>
      </div>`;
    }
    return row("止损", sl) + row("止盈", tp);
  }

  function renderLivePositionCard(exchangeId, pos, monitorOrder) {
    const symbol = pos.symbol || "";
    const side = (pos.side || "long").toLowerCase();
    const sideCn = side === "long" ? "做多" : "做空";
    const sideCls = side === "long" ? "pos-side-long" : "pos-side-short";
    const mo = monitorOrder || {};
    const cond = condOrdersFromPosition(pos);
    const reg = Array.isArray(pos.regular_orders) ? pos.regular_orders : [];
    const guess = guessTpslFromCondOrders(side, cond);
    const symAttr = esc(symbol).replace(/"/g, "&quot;");
    const sideAttr = esc(side).replace(/"/g, "&quot;");
    const contractsAttr = esc(String(pos.contracts != null ? pos.contracts : "")).replace(/"/g, "&quot;");
    const slAttr = esc(String(mo.stop_loss != null ? mo.stop_loss : guess.sl)).replace(/"/g, "&quot;");
    const tpAttr = esc(String(mo.take_profit != null ? mo.take_profit : guess.tp)).replace(/"/g, "&quot;");
    const entry = pos.entry_price != null ? pos.entry_price : mo.trigger_price;
    const sl = mo.stop_loss != null ? mo.stop_loss : guess.sl;
    const tp = mo.take_profit != null ? mo.take_profit : guess.tp;
    const rr = calcRrRatio(side, entry, sl, tp);
    const upnl = pos.unrealized_pnl;
    let pnlText = fmt(upnl, 2) + "U";
    if (pos.notional_usdt && upnl != null && Math.abs(Number(pos.notional_usdt)) > 1e-8) {
      const pct = (Number(upnl) / Math.abs(Number(pos.notional_usdt))) * 100;
      pnlText += ` (${pct >= 0 ? "" : ""}${pct.toFixed(2)}%)`;
    }
    const meta = [];
    if (mo.monitor_type || mo.key_signal_type) {
      meta.push(
        `来源: ${esc(mo.monitor_type || "下单监控")}${mo.key_signal_type ? " · " + esc(mo.key_signal_type) : ""}`
      );
    } else {
      meta.push("来源: 交易所持仓");
    }
    if (mo.trade_style) meta.push(`风格: ${esc(mo.trade_style)}`);
    else meta.push("风格: —");
    if (mo.risk_percent != null) {
      meta.push(`风险: ${esc(mo.risk_percent)}%`);
    }
    const beOn = mo.breakeven_enabled === 1 || mo.breakeven_enabled === true;
    meta.push(
      `<span class="${beOn ? "pos-meta-on" : "pos-meta-off"}">移动保本:${beOn ? "开" : "关"}</span>`
    );
    return `<div class="pos-card hub-pos-card">
      <div class="pos-card-head">
        <div class="pos-card-symbol">
          <strong>${esc(symbol)}</strong>
          <span class="pos-side-badge ${sideCls}">${sideCn}</span>
        </div>
        <div class="pos-head-actions">
          <button type="button" class="pos-entrust-btn btn-place-tpsl" data-ex-id="${esc(exchangeId)}" data-symbol="${symAttr}" data-side="${sideAttr}" data-contracts="${contractsAttr}" data-sl="${slAttr}" data-tp="${tpAttr}">委托</button>
          <button type="button" class="pos-close-btn btn-close-pos" data-ex-id="${esc(exchangeId)}" data-symbol="${symAttr}" data-side="${sideAttr}">平仓</button>
        </div>
      </div>
      <div class="pos-meta">${meta.map((m) => `<span class="pos-meta-item">${m}</span>`).join("")}</div>
      <div class="pos-grid">
        <div class="pos-cell"><span class="pos-label">成交价</span><span class="pos-value">${entry != null ? fmt(entry, 4) : "—"}</span></div>
        <div class="pos-cell"><span class="pos-label">止损</span><span class="pos-value">${sl != null && sl !== "" ? fmt(sl, 4) : "—"}</span></div>
        <div class="pos-cell"><span class="pos-label">止盈</span><span class="pos-value">${tp != null && tp !== "" ? fmt(tp, 4) : "—"}</span></div>
        <div class="pos-cell"><span class="pos-label">盈亏比</span><span class="pos-value">${rr != null ? fmt(rr, 2) + ":1" : "-:1"}</span></div>
        <div class="pos-cell"><span class="pos-label">张数</span><span class="pos-value">${fmt(pos.contracts, 4)}</span></div>
        <div class="pos-cell"><span class="pos-label">浮盈亏</span><span class="pos-value ${pnlCls(upnl)}">${pnlText}</span></div>
      </div>
      <div class="pos-footer">
        <span>杠杆: ${mo.leverage != null ? esc(mo.leverage) + "x" : "—"}</span>
        <span>计划基数: ${mo.margin_capital != null ? fmt(mo.margin_capital, 2) + "U" : "—"}</span>
        <span>仓位占比: ${mo.position_ratio != null ? esc(mo.position_ratio) + "%" : "—"}</span>
      </div>
      <div class="pos-ex-orders">
        <div class="pos-ex-orders-title">交易所止盈止损</div>
        ${renderExTpslRows(exchangeId, symbol, cond)}
      </div>
      ${renderOrdersCollapse(exchangeId, symbol, cond, reg)}
    </div>`;
  }

  function renderHubSectionCard(title, bodyHtml, emptyHint) {
    const inner = bodyHtml || `<div class="pos-empty">${esc(emptyHint || "暂无")}</div>`;
    return `<div class="hub-section-card">
      <div class="hub-section-head">${esc(title)}</div>
      <div class="hub-section-body">${inner}</div>
    </div>`;
  }

  function renderKeySection(keys, kmap) {
    if (!keys.length) return "";
    return keys
      .map((k) => {
        const kp = kmap[k.id] || kmap[String(k.id)] || {};
        const mt = k.monitor_type || k.type || "";
        return `<div class="hub-mini-card">
          <div class="hub-mini-title">${esc(k.symbol)} · ${esc(mt)}</div>
          <div class="hub-mini-line">上沿 ${esc(k.upper)} / 下沿 ${esc(k.lower)}</div>
          <div class="hub-mini-line">${esc(kp.gate_summary || kp.price_display || kp.price || "—")}</div>
        </div>`;
      })
      .join("");
  }

  function renderOrderMonitorSection(orders) {
    if (!orders || !orders.length) return "";
    return orders
      .map(
        (o) => `<div class="hub-mini-card">
        <div class="hub-mini-title">#${esc(o.id)} · ${esc(o.symbol || o.exchange_symbol)} · ${esc(o.direction)}</div>
        <div class="hub-mini-line">触发 ${fmt(o.trigger_price, 4)} · SL ${fmt(o.stop_loss, 4)} · TP ${fmt(o.take_profit, 4)} · ${esc(o.trade_style || o.monitor_type || "下单监控")}</div>
      </div>`
      )
      .join("");
  }

  function renderTrendSection(trends) {
    if (!trends || !trends.length) return "";
    return trends
      .map(
        (t) => `<div class="hub-mini-card">
        <div class="hub-mini-title">#${esc(t.id)} · ${esc(t.symbol)} · ${esc(t.direction)}</div>
        <div class="hub-mini-line">SL ${fmt(t.stop_loss, 4)} · TP ${fmt(t.take_profit, 4)} · 状态 ${esc(t.status || "active")}</div>
      </div>`
      )
      .join("");
  }

  function renderRollSection(rolls) {
    if (!rolls || !rolls.length) return "";
    return rolls
      .map(
        (g) => `<div class="hub-mini-card">
        <div class="hub-mini-title">组 #${esc(g.id)} · 监控单 #${esc(g.order_monitor_id || "—")}</div>
        <div class="hub-mini-line">腿数 ${esc(g.leg_count != null ? g.leg_count : "—")} · 止损 ${fmt(g.current_stop_loss, 4)} · ${esc(g.status || "active")}</div>
      </div>`
      )
      .join("");
  }

  function renderPositionBlock(exchangeId, x) {
    const symAttr = esc(x.symbol || "").replace(/"/g, "&quot;");
    const sideAttr = esc((x.side || "").toLowerCase()).replace(/"/g, "&quot;");
    const contractsAttr = esc(String(x.contracts != null ? x.contracts : "")).replace(/"/g, "&quot;");
    const cond = condOrdersFromPosition(x);
    const reg = Array.isArray(x.regular_orders) ? x.regular_orders : [];
    const guess = guessTpslFromCondOrders(x.side, cond);
    const slAttr = esc(String(guess.sl)).replace(/"/g, "&quot;");
    const tpAttr = esc(String(guess.tp)).replace(/"/g, "&quot;");
    return `<div class="pos-block">
      <div class="table-scroll">
      <table class="data-table"><thead><tr><th>合约</th><th>方向</th><th>张数</th><th>浮盈</th><th>操作</th></tr></thead><tbody>
        <tr>
          <td>${esc(x.symbol)}</td>
          <td>${esc(x.side)}</td>
          <td>${fmt(x.contracts, 4)}</td>
          <td class="${pnlCls(x.unrealized_pnl)}">${fmt(x.unrealized_pnl, 4)}</td>
          <td class="td-actions">
            <div class="pos-action-group">
              <button type="button" class="btn-place-tpsl btn-sm ghost" data-ex-id="${esc(exchangeId)}" data-symbol="${symAttr}" data-side="${sideAttr}" data-contracts="${contractsAttr}" data-sl="${slAttr}" data-tp="${tpAttr}">委托</button>
              <button type="button" class="btn-close-pos btn-sm danger" data-ex-id="${esc(exchangeId)}" data-symbol="${symAttr}" data-side="${sideAttr}">平仓</button>
            </div>
          </td>
        </tr>
      </tbody></table>
      </div>
      ${renderOrdersCollapse(exchangeId, x.symbol, cond, reg)}
    </div>`;
  }

  function renderGridBody(row, ag, pos, hm, flaskOk, keys, orders, trends, rolls, kmap) {
    let inner = `<div class="stat-row">
      <div class="stat-box"><div class="stat-label">余额</div><div class="stat-value">${fmt(ag.balance_usdt, 2)} <small style="font-size:12px;color:var(--muted)">U</small></div></div>
      <div class="stat-box"><div class="stat-label">浮盈合计</div><div class="stat-value ${pnlCls(ag.total_unrealized_pnl)}">${fmt(ag.total_unrealized_pnl, 4)}</div></div>
    </div>`;
    inner += `<div class="section-title">交易所持仓</div>`;
    if (pos.length) {
      inner += pos.map((p) => renderPositionBlock(row.id, p)).join("");
    } else {
      inner += '<div class="empty-hint">无持仓</div>';
    }
    if (orders.length) {
      inner += `<div class="section-title">下单监控 · ${orders.length}</div>`;
      orders.forEach((o) => {
        inner += `<div class="list-line">${esc(o.symbol || o.exchange_symbol)} · ${esc(o.direction)} · 触发 ${fmt(o.trigger_price, 4)}</div>`;
      });
    }
    if ((row.capabilities || []).includes("key")) {
      inner += `<div class="section-title">关键位</div>`;
      if (!flaskOk) {
        const fe = row.flask_error || hm.msg || hm.error || "策略 Flask 未连通";
        inner += `<div class="err">${esc(fe)}</div>`;
      } else if (!keys.length) {
        inner += '<div class="empty-hint">当前无记录</div>';
      } else {
        keys.forEach((k) => {
          const kp = kmap[k.id] || kmap[String(k.id)] || {};
          const mt = k.monitor_type || k.type || "";
          let line = `${esc(k.symbol)} · ${esc(mt)} · ${k.upper} / ${k.lower}`;
          if (kp.price_display != null || kp.price != null) {
            line += ` · ${esc(kp.price_display != null ? kp.price_display : kp.price)}`;
          }
          line += ` · ${esc(kp.gate_summary || "-")}`;
          inner += `<div class="list-line">${line}</div>`;
        });
      }
    }
    if ((row.capabilities || []).includes("trend") && trends.length) {
      inner += `<div class="section-title">趋势回调 · ${trends.length}</div>`;
      trends.forEach((t) => {
        inner += `<div class="list-line">#${t.id} ${esc(t.symbol)} ${t.direction} · SL ${t.stop_loss} · TP ${t.take_profit}</div>`;
      });
    }
    if (rolls.length) {
      inner += `<div class="section-title">顺势加仓 · ${rolls.length}</div>`;
      rolls.forEach((g) => {
        inner += `<div class="list-line">组 #${g.id} · 监控 #${g.order_monitor_id || "—"} · ${g.leg_count != null ? g.leg_count : "—"} 腿</div>`;
      });
    }
    inner += `<div class="card-expand-hint">点击标题栏放大全屏 · 查看持仓卡片 / 关键位 / 策略详情</div>`;
    return inner;
  }

  function renderFullscreenExchange(row) {
    const ag = row.agent || {};
    const pos = Array.isArray(ag.positions) ? ag.positions : [];
    const hm = row.hub_monitor || {};
    const flaskOk = row.flask_ok !== false && hm.ok !== false;
    const keys = flaskOk ? hm.keys || [] : [];
    const orders = flaskOk ? hm.orders || [] : [];
    const trends = flaskOk ? hm.trends || [] : [];
    const rolls = flaskOk ? hm.rolls || [] : [];
    const kmap = {};
    (row.key_prices || []).forEach((k) => {
      kmap[k.id] = k;
    });
    const flaskOpen = row.flask_url_browser || row.flask_url;
    let html = `<div class="fs-head">
      <div>
        <h2 class="fs-title">${esc(row.name)}</h2>
        <div class="fs-sub">${esc(flaskOpen || "")}</div>
      </div>
      <div class="fs-head-actions">
        <button type="button" class="ghost btn-expand-back">返回监控</button>
        ${flaskOpen ? `<a class="btn-link btn-open-instance" href="#" data-ex-id="${esc(row.id)}" data-next="/">打开实例</a>` : ""}
        ${flaskOpen ? `<a class="btn-link btn-open-instance" href="#" data-ex-id="${esc(row.id)}" data-next="/strategy">策略交易</a>` : ""}
        <button type="button" class="danger btn-close-ex" data-id="${esc(row.id)}">全平</button>
      </div>
    </div>`;
    if (!row.http_ok || ag.ok === false) {
      html += `<div class="err">${esc(row.error || ag.error || "子代理不可用")}</div>`;
      return html;
    }
    html += `<div class="stat-row">
      <div class="stat-box"><div class="stat-label">余额</div><div class="stat-value">${fmt(ag.balance_usdt, 2)} U</div></div>
      <div class="stat-box"><div class="stat-label">浮盈合计</div><div class="stat-value ${pnlCls(ag.total_unrealized_pnl)}">${fmt(ag.total_unrealized_pnl, 4)}</div></div>
    </div>`;
    const posCount = pos.length;
    const posListCls = hubPosListCountClass(posCount);
    html += `<div class="section-title">持仓（${posCount} 仓 · 每币种一卡）</div>`;
    html += `<div class="hub-pos-list ${posListCls}" data-pos-count="${posCount}">`;
    if (posCount) {
      pos.forEach((p) => {
        html += renderLivePositionCard(row.id, p, findMonitorOrder(orders, p.symbol, p.side));
      });
    } else {
      html += '<div class="pos-empty">暂无持仓</div>';
    }
    html += "</div>";
    if ((row.capabilities || []).includes("key")) {
      if (!flaskOk) {
        html += renderHubSectionCard("关键位", `<div class="err">${esc(row.flask_error || hm.error || "Flask 未连通")}</div>`, "");
      } else {
        html += renderHubSectionCard("关键位", renderKeySection(keys, kmap), "当前无关键位记录");
      }
    }
    html += renderHubSectionCard("下单监控", renderOrderMonitorSection(orders), "暂无运行中的下单监控");
    if ((row.capabilities || []).includes("trend")) {
      html += renderHubSectionCard("趋势回调", renderTrendSection(trends), "暂无运行中的趋势回调计划");
    }
    html += renderHubSectionCard("顺势加仓", renderRollSection(rolls), "暂无运行中的顺势加仓组");
    return html;
  }

  function openTpslModal(exchangeId, symbol, side, contracts, slHint, tpHint) {
    tpslPending = {
      exchangeId,
      symbol,
      side: (side || "long").toLowerCase(),
      contracts: parseFloat(contracts),
    };
    const modal = document.getElementById("tpsl-modal");
    const meta = document.getElementById("tpsl-modal-meta");
    const slIn = document.getElementById("tpsl-sl");
    const tpIn = document.getElementById("tpsl-tp");
    if (!modal || !meta || !slIn || !tpIn) return;
    meta.textContent = `${symbol} · ${side} · ${contracts} 张`;
    slIn.value = slHint !== "" && slHint != null ? String(slHint) : "";
    tpIn.value = tpHint !== "" && tpHint != null ? String(tpHint) : "";
    modal.classList.remove("hidden");
    modal.setAttribute("aria-hidden", "false");
    slIn.focus();
  }

  function closeTpslModal() {
    tpslPending = null;
    const modal = document.getElementById("tpsl-modal");
    if (modal) {
      modal.classList.add("hidden");
      modal.setAttribute("aria-hidden", "true");
    }
  }

  async function submitTpslModal() {
    if (!tpslPending) return;
    const slIn = document.getElementById("tpsl-sl");
    const tpIn = document.getElementById("tpsl-tp");
    const sl = parseFloat(slIn && slIn.value);
    const tp = parseFloat(tpIn && tpIn.value);
    if (!sl || sl <= 0 || !tp || tp <= 0) {
      showToast("请填写有效的止损价与止盈价", true);
      return;
    }
    const { exchangeId, symbol, side, contracts } = tpslPending;
    if (
      !confirm(
        `确认 ${symbol} ${side}\n先撤销全部条件单，再挂止损 ${sl}、止盈 ${tp}？`
      )
    ) {
      return;
    }
    const btn = document.getElementById("tpsl-submit");
    if (btn) btn.disabled = true;
    try {
      const r = await apiFetch(
        "/api/orders/" + encodeURIComponent(exchangeId) + "/place-tpsl",
        {
          method: "POST",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify({
            symbol,
            side,
            stop_loss: sl,
            take_profit: tp,
            contracts: contracts > 0 ? contracts : null,
          }),
        }
      );
      const j = await r.json();
      const pl = j.payload || {};
      const ok = j.ok && pl.ok !== false;
      const n = pl.placed && pl.placed.cancelled_conditional;
      showToast(
        ok
          ? `已挂单（已撤 ${n != null ? n : "?"} 笔旧条件单）`
          : pl.error || JSON.stringify(j),
        !ok
      );
      if (ok) {
        closeTpslModal();
        loadMonitorBoard();
      }
    } catch (e) {
      showToast(String(e), true);
    } finally {
      if (btn) btn.disabled = false;
    }
  }

  function initFullscreen() {
    const backdrop = document.getElementById("exchange-fullscreen-backdrop");
    if (backdrop) {
      backdrop.onclick = () => {
        closeExchangeFullscreen();
        renderMonitorGrid(lastMonitorRows);
      };
    }
    const fs = document.getElementById("exchange-fullscreen");
    if (fs && !expandedExchangeId) {
      fs.classList.add("hidden");
      fs.setAttribute("aria-hidden", "true");
    }
  }

  function initTpslModal() {
    const backdrop = document.getElementById("tpsl-modal-backdrop");
    const cancel = document.getElementById("tpsl-cancel");
    const submit = document.getElementById("tpsl-submit");
    if (backdrop) backdrop.onclick = closeTpslModal;
    if (cancel) cancel.onclick = closeTpslModal;
    if (submit) submit.onclick = () => submitTpslModal();
    document.addEventListener("keydown", (ev) => {
      if (ev.key === "Escape") {
        closeTpslModal();
        if (expandedExchangeId) {
          closeExchangeFullscreen();
          renderMonitorGrid(lastMonitorRows);
        }
      }
    });
  }

  async function cancelOneOrder(exchangeId, symbol, orderId, channel) {
    if (!confirm(`撤销委托 ${symbol} #${orderId}？`)) return;
    try {
      const r = await apiFetch("/api/orders/" + encodeURIComponent(exchangeId) + "/cancel", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ symbol, order_id: orderId, channel: channel || "regular" }),
      });
      const j = await r.json();
      const pl = j.payload || {};
      const ok = j.ok && pl.ok !== false;
      showToast(ok ? "已撤单" : pl.error || JSON.stringify(j), !ok);
      loadMonitorBoard();
    } catch (e) {
      showToast(String(e), true);
    }
  }

  async function cancelSymbolOrders(exchangeId, symbol, scope) {
    const label = scope === "conditional" ? "全部条件单" : "全部委托";
    if (!confirm(`确认撤销 ${symbol} 的${label}？`)) return;
    try {
      const r = await apiFetch(
        "/api/orders/" + encodeURIComponent(exchangeId) + "/cancel-symbol",
        {
          method: "POST",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify({ symbol, scope }),
        }
      );
      const j = await r.json();
      const pl = j.payload || {};
      const ok = j.ok && pl.ok !== false;
      const n = pl.cancelled_count != null ? pl.cancelled_count : "?";
      showToast(ok ? `已撤销 ${n} 笔` : pl.error || JSON.stringify(j), !ok);
      loadMonitorBoard();
    } catch (e) {
      showToast(String(e), true);
    }
  }

  function renderMonitorCard(row) {
    const ag = row.agent || {};
    const pos = Array.isArray(ag.positions) ? ag.positions : [];
    const hm = row.hub_monitor || {};
    const flaskOk = row.flask_ok !== false && hm.ok !== false;
    const keys = flaskOk ? hm.keys || [] : [];
    const orders = flaskOk ? hm.orders || [] : [];
    const trends = flaskOk ? hm.trends || [] : [];
    const rolls = flaskOk ? hm.rolls || [] : [];
    const kmap = {};
    (row.key_prices || []).forEach((k) => {
      kmap[k.id] = k;
    });
    let inner = "";
    const agOk = ag.ok !== false;
    const agErr = ag.error || row.error || "";
    if (!row.http_ok) {
      inner = `<div class="err">${esc(row.error || "子代理不可用")}</div>`;
    } else if (!agOk) {
      inner = `<div class="err">${esc(agErr || "子代理返回失败")}</div>`;
      inner += `<div class="empty-hint">请检查 PM2 子代理与 <code>${esc(row.agent_url || "")}/status</code></div>`;
    } else {
      inner = renderGridBody(row, ag, pos, hm, flaskOk, keys, orders, trends, rolls, kmap);
    }
    const online = row.http_ok && agOk;
    const cardCls = online ? "card-online" : "card-offline";
    const dotCls = online ? "ok" : "bad";
    const flaskOpen = row.flask_url_browser || row.flask_url;
    const openFlask = flaskOpen
      ? `<a class="btn-link btn-open-instance" href="#" data-ex-id="${esc(row.id)}" data-next="/">实例</a>`
      : "";
    const openReview = flaskOpen
      ? `<a class="btn-link btn-open-instance" href="#" data-ex-id="${esc(row.id)}" data-next="/records">复盘</a>`
      : "";
    return `<div class="card ${cardCls}" data-ex-id="${esc(row.id)}">
      <div class="card-head card-expand-zone" title="点击放大全屏">
        <div>
          <div class="card-title-row">
            <span class="status-dot ${dotCls}" title="${online ? "在线" : "离线"}"></span>
            <div class="card-title">${esc(row.name)}</div>
          </div>
          <div class="card-sub">${esc(flaskOpen || "")}</div>
        </div>
        <div class="card-actions">
          ${openFlask}
          ${openReview}
          <button type="button" class="danger btn-close-ex" data-id="${esc(row.id)}">全平</button>
        </div>
      </div>
      <div class="card-body">${inner}</div>
    </div>`;
  }

  async function closeOnePosition(exchangeId, symbol, side) {
    const label = `${symbol} · ${side}`;
    if (!confirm(`确认对该账户市价平仓：${label}？`)) return;
    try {
      const r = await apiFetch(
        "/api/close/" + encodeURIComponent(exchangeId) + "/position",
        {
          method: "POST",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify({ symbol, side }),
        }
      );
      const j = await r.json();
      const pl = j.payload || {};
      const ok = j.ok && pl.ok !== false;
      const msg =
        (ok && pl.closed
          ? `已平仓 ${pl.closed.symbol} ${pl.closed.side} · 张数 ${pl.closed.amount}`
          : pl.error) || JSON.stringify(j, null, 2);
      showToast(msg, !ok);
      loadMonitorBoard();
    } catch (e) {
      showToast(String(e), true);
    }
  }

  async function closeOne(id) {
    if (!confirm("确认对该账户市价全平？")) return;
    try {
      const r = await apiFetch("/api/close/" + encodeURIComponent(id), { method: "POST" });
      const j = await r.json();
      showToast(JSON.stringify(j, null, 2), !r.ok);
      loadMonitorBoard();
    } catch (e) {
      showToast(String(e), true);
    }
  }

  async function closeAll() {
    const n = enabledAccounts().length;
    if (!confirm(`对 ${n} 个已启用账户执行紧急全平？`)) return;
    try {
      const r = await apiFetch("/api/close-all", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ exclude_ids: [] }),
      });
      const j = await r.json();
      showToast(JSON.stringify(j, null, 2), !r.ok);
      loadMonitorBoard();
    } catch (e) {
      showToast(String(e), true);
    }
  }

  async function loadSettingsMetaLine() {
    try {
      const r = await apiFetch("/api/settings/meta");
      const m = await r.json();
      const el = document.getElementById("settings-meta-line");
      if (!el) return;
      const parts = [];
      if (m.password_required) parts.push("已启用用户名+密码登录");
      else parts.push("未设 HUB_PASSWORD（反代公网暴露时建议设置 HUB_USERNAME + HUB_PASSWORD）");
      if (m.hub_bridge_token_set) parts.push("中控已配置 HUB_BRIDGE_TOKEN");
      else parts.push("中控未设 HUB_BRIDGE_TOKEN（实例需 APP_AUTH_DISABLED 或同令牌）");
      if (m.public_origin) parts.push("浏览器外链基址: " + m.public_origin);
      else parts.push("未设 HUB_PUBLIC_ORIGIN（复盘链接仅本机可开）");
      if ((m.env_disabled_ids || []).length) {
        parts.push("环境强制关闭 id: " + m.env_disabled_ids.join(", ") + "（改 .env 后须重启 hub）");
      } else {
        parts.push("HUB_DISABLED_IDS 未强制关闭任何账户");
      }
      el.textContent = parts.join(" · ");
    } catch (_) {}
  }

  function renderSettingsList(data) {
    const list = document.getElementById("settings-list");
    if (!list) return;
    list.innerHTML = (data.exchanges || [])
      .map((ex, idx) => renderSettingsCard(ex, idx))
      .join("");
    list.querySelectorAll(".btn-del-ex").forEach((btn) => {
      btn.onclick = () => {
        const i = Number(btn.dataset.idx);
        data.exchanges.splice(i, 1);
        settingsCache = data;
        renderSettingsList(data);
      };
    });
  }

  function loadSettingsUI() {
    loadSettingsMetaLine();
    loadSettings().then((data) => {
      renderSettingsList(data);
    });
  }

  function renderSettingsCard(ex, idx) {
    const caps = ex.capabilities || [];
    const envOff = ex.env_disabled
      ? '<span class="badge">环境变量强制关</span>'
      : "";
    return `<div class="settings-card" data-idx="${idx}" data-key="${esc(ex.key || ex.id || "")}">
      <div class="settings-card-head">
        <label class="chk-label"><input type="checkbox" class="ex-enabled" ${ex.enabled ? "checked" : ""} ${ex.env_disabled ? "disabled" : ""}/> 启用</label>
        ${envOff}
        <input class="ex-name" value="${esc(ex.name || "")}" placeholder="显示名称" />
      </div>
      <div class="settings-grid">
        <div class="field"><label>Flask URL</label><input class="ex-flask" value="${esc(ex.flask_url || "")}" /></div>
        <div class="field"><label>Agent URL</label><input class="ex-agent" value="${esc(ex.agent_url || "")}" /></div>
        <div class="field field-wide"><label>复盘链接（可空）</label><input class="ex-review" value="${esc(ex.review_url || "")}" placeholder="留空则自动生成 /records" /></div>
      </div>
      <div class="cap-chips">
        <label><input type="checkbox" class="cap-key" ${caps.includes("key") ? "checked" : ""}/> 监控关键位</label>
        <label><input type="checkbox" class="cap-trend" ${caps.includes("trend") ? "checked" : ""}/> 监控趋势计划</label>
      </div>
      <div class="settings-card-foot">
        <div class="field"><label>id</label><input class="ex-id" value="${esc(ex.id || "")}" /></div>
        <button type="button" class="danger btn-del-ex" data-idx="${idx}">删除账户</button>
      </div>
    </div>`;
  }

  function collectSettingsFromUI() {
    const rows = [...document.querySelectorAll("#settings-list .settings-card")];
    return {
      version: 1,
      exchanges: rows.map((card) => {
        const caps = [];
        if (card.querySelector(".cap-key").checked) caps.push("key");
        if (card.querySelector(".cap-trend").checked) caps.push("trend");
        const id = card.querySelector(".ex-id").value.trim();
        const stableKey = (card.dataset.key || id).trim();
        return {
          id: id,
          key: stableKey,
          name: card.querySelector(".ex-name").value.trim(),
          flask_url: card.querySelector(".ex-flask").value.trim(),
          agent_url: card.querySelector(".ex-agent").value.trim(),
          review_url: card.querySelector(".ex-review").value.trim(),
          enabled: card.querySelector(".ex-enabled").checked,
          capabilities: caps,
        };
      }),
    };
  }

  async function saveSettings() {
    const body = collectSettingsFromUI();
    try {
      const r = await apiFetch("/api/settings", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify(body),
      });
      const j = await r.json();
      if (j.ok) {
        showToast("设置已保存（已写入 hub_settings.json）");
        if (j.settings) {
          settingsCache = j.settings;
          renderSettingsList(j.settings);
          loadSettingsMetaLine();
        } else {
          await loadSettingsUI();
        }
      } else showToast("保存失败", true);
    } catch (e) {
      showToast(String(e), true);
    }
  }

  document.getElementById("btn-logout").onclick = async () => {
    try {
      await fetch("/api/auth/logout", { method: "POST" });
    } catch (_) {}
    location.href = "/login";
  };

  document.getElementById("btn-monitor-refresh").onclick = loadMonitorBoard;
  document.getElementById("auto-monitor").onchange = startMonitorPoll;
  document.getElementById("btn-close-all").onclick = closeAll;
  document.getElementById("btn-settings-save").onclick = saveSettings;
  document.getElementById("btn-settings-reload").onclick = loadSettingsUI;
  document.getElementById("btn-settings-add").onclick = () => {
    const data = settingsCache || { exchanges: [] };
    const nid = String(Date.now() % 100000);
    data.exchanges.push({
      id: nid,
      key: "custom_" + nid,
      name: "新交易所",
      flask_url: "http://127.0.0.1:5000",
      agent_url: "http://127.0.0.1:15200",
      review_url: "",
      enabled: false,
      capabilities: ["key"],
    });
    settingsCache = data;
    renderSettingsList(data);
    showToast("已添加一行，请填写 URL 后点「保存设置」");
  };

  initTpslModal();
  initFullscreen();
  initMobileLayout();

  initAuth().then((ok) => {
    if (!ok) return;
    setActiveNav();
    if (currentPage() === "settings") {
      loadSettings().catch(() => {});
    }
    window.addEventListener("popstate", setActiveNav);
  });
})();