(function (global) {
  "use strict";

  function fmt(v, d) {
    if (v === null || v === undefined || Number.isNaN(Number(v))) return "—";
    return Number(v).toFixed(d == null ? 2 : d);
  }

  function fmtDisplay(v, fallback) {
    if (v !== null && v !== undefined && String(v).trim() !== "") return String(v);
    if (fallback !== undefined) return fmtDisplay(fallback);
    return "—";
  }

  function fmtOptionPx(v, tickSz) {
    if (v === null || v === undefined || Number.isNaN(Number(v))) return "—";
    const n = Number(v);
    const tick = Number(tickSz);
    if (!tickSz || Number.isNaN(tick) || tick <= 0) return String(n);
    let decimals = 0;
    if (tick < 1) decimals = Math.max(0, -Math.round(Math.log10(tick)));
    else if (String(tick).indexOf(".") >= 0) decimals = String(tick).split(".")[1].length;
    return n.toFixed(decimals).replace(/\.?0+$/, "") || "0";
  }

  function fmtUsdc(v) {
    if (v === null || v === undefined || Number.isNaN(Number(v))) return "—";
    return Number(v).toFixed(2);
  }

  function optTypeLabel(t) {
    return (t || "").toUpperCase() === "P" ? "看跌 Put" : "看涨 Call";
  }

  function pnlCls(upl, hub) {
    if (upl > 0) return hub ? "pnl-pos" : "pos-pnl-profit";
    if (upl < 0) return hub ? "pnl-neg" : "pos-pnl-loss";
    return "";
  }

  function fmtCloseLevels(preview, tickSz) {
    const levels = ((preview && preview.levels) || []).slice(0, 5);
    if (!levels.length) return "—";
    return levels.map(function (x, idx) {
      const levelNo = x.level != null ? x.level : idx + 1;
      return "买" + levelNo + " " + fmtOptionPx(x.px, tickSz);
    }).join(" · ");
  }

  function fmtClosePreview(preview, premiumPaid, hub) {
    if (!preview || preview.total_received == null) return "—";
    const recvTxt = fmtUsdc(preview.total_received);
    let cls = "";
    const prem = Number(premiumPaid);
    const recv = Number(preview.total_received);
    if (!Number.isNaN(prem) && !Number.isNaN(recv)) {
      if (recv > prem) cls = " " + pnlCls(1, hub);
      else if (recv < prem) cls = " " + pnlCls(-1, hub);
    }
    return '<span class="opt-close-value' + cls + '">' + recvTxt + " USDC</span>";
  }

  function expiryCdHtml(expMs) {
    const ms = expMs != null && expMs !== "" ? String(expMs) : "";
    if (!ms) return "—";
    return '<span class="opt-expiry-cd" data-opt-exp-ms="' + ms + '">—</span>';
  }

  function renderCardInner(p, opts) {
    opts = opts || {};
    const hub = !!opts.hub;
    const readOnly = !!opts.readOnly;
    const upl = p.upl;
    const uplCls = pnlCls(upl, hub);
    const sideCls = (p.opt_type || "").toUpperCase() === "P" ? "pos-side-short" : "pos-side-long";
    const expMs = p.exp_time_ms != null ? p.exp_time_ms : p.exp_time;
    const expAttr = expMs != null && expMs !== "" ? String(expMs) : "";
    const closePreview = p.close_preview || {};
    const tickSz = p.tick_sz;
    const premTxt = fmtDisplay(p.premium_paid_fmt, p.premium_paid != null ? fmtUsdc(p.premium_paid) : null);
    const avgTxt = fmtDisplay(p.avg_px_fmt, fmtOptionPx(p.avg_px, tickSz));
    const markTxt = fmtDisplay(p.mark_px_fmt, fmtOptionPx(p.mark_px, tickSz));
    let headActions = "";
    if (!readOnly) {
      const closeSheets = p.avail_pos != null && Number(p.avail_pos) > 0 ? p.avail_pos : p.pos;
      headActions =
        '<div class="pos-head-actions">' +
        '<button type="button" class="btn-primary opt-close-btn" data-inst="' + (p.inst_id || "") + '" data-sheets="' + closeSheets + '">多档平仓</button>' +
        "</div>";
    }
    return (
      '<div class="pos-card-head">' +
      '<div class="pos-card-symbol"><strong>' + (p.inst_id || "") + "</strong>" +
      '<span class="pos-side-badge ' + sideCls + '">' + optTypeLabel(p.opt_type) + "</span></div>" +
      headActions +
      "</div>" +
      '<div class="pos-meta">' +
      '<span class="pos-meta-item">行权价: ' + fmt(p.strike, 0) + "</span>" +
      '<span class="pos-meta-item">张数: ' + fmt(p.pos, 0) + " · 币量 " + fmt(p.eth_amount, 4) + "</span>" +
      (expAttr
        ? '<span class="pos-meta-item">到期倒计时: ' + expiryCdHtml(expAttr) + "</span>"
        : "") +
      "</div>" +
      '<div class="pos-grid">' +
      '<div class="pos-cell"><span class="pos-label">权利金</span><span class="pos-value">' + premTxt + " USDC</span></div>" +
      '<div class="pos-cell"><span class="pos-label">开仓均价</span><span class="pos-value">' + avgTxt + "</span></div>" +
      '<div class="pos-cell"><span class="pos-label">标记价</span><span class="pos-value">' + markTxt + "</span></div>" +
      '<div class="pos-cell"><span class="pos-label">指数价</span><span class="pos-value">' + fmt(p.idx_px, 0) + "</span></div>" +
      '<div class="pos-cell"><span class="pos-label">到期平衡</span><span class="pos-value">' + fmt(p.expiry_be_px, 0) + "</span></div>" +
      '<div class="pos-cell"><span class="pos-label">平掉回本</span><span class="pos-value">' + fmt(p.close_be_px, 0) + "</span></div>" +
      '<div class="pos-cell"><span class="pos-label">浮盈亏</span><span class="pos-value ' + uplCls + '">' + fmt(p.upl, 2) + "</span></div>" +
      '<div class="pos-cell"><span class="pos-label">收益率</span><span class="pos-value ' + uplCls + '">' +
      (p.upl_ratio_pct != null ? fmt(p.upl_ratio_pct, 2) + "%" : "—") + "</span></div>" +
      '<div class="pos-cell opt-pos-cell--depth"><span class="pos-label">买盘深度</span><span class="pos-value opt-bid-plain">' + fmtCloseLevels(closePreview, tickSz) + "</span></div>" +
      '<div class="pos-cell opt-pos-cell--close"><span class="pos-label">按买盘回收</span><span class="pos-value">' + fmtClosePreview(closePreview, p.premium_paid, hub) + "</span></div>" +
      "</div>"
    );
  }

  function renderCard(p, opts) {
    opts = opts || {};
    const hub = !!opts.hub;
    const extraCls = hub ? " hub-pos-card hub-opt-pos-card" : " opt-pos-card";
    return (
      '<div class="pos-card' + extraCls + '" data-inst="' + (p.inst_id || "") + '">' +
      renderCardInner(p, opts) +
      "</div>"
    );
  }

  global.OptionsPositionCards = {
    renderCardInner: renderCardInner,
    renderCard: renderCard,
  };
})(typeof window !== "undefined" ? window : globalThis);