function e(e, t = {}) {
  let n = {
    ...e,
    ...t,
  };
  return {
    product_id: Number(n.product_id),
    config_options: n.config_options ?? {},
    qty: Math.max(1, Number(n.qty ?? 1)),
    customfield: n.customfield ?? {},
    self_defined_field: n.self_defined_field ?? {},
  };
}
function t(e) {
  return JSON.parse(JSON.stringify(e));
}
function n(n) {
  return n.map((n) => t(e(n)));
}
function r(e) {
  return Array.isArray(e)
    ? e.map(r)
    : e && typeof e == `object`
      ? Object.fromEntries(
          Object.entries(e)
            .filter(([, e]) => e !== void 0)
            .sort(([e], [t]) => e.localeCompare(t))
            .map(([e, t]) => [e, r(t)]),
        )
      : e;
}
function i(t) {
  return JSON.stringify(r(e(t)));
}
function a(e, t) {
  if (!e) return;
  let n = e.item.self_defined_field ?? {};
  if (Object.keys(n).some((e) => !t.includes(e)))
    throw Error(`商品自定义字段已调整，请返回购物车删除该项后重新配置`);
}
var o = null;
async function s(e) {
  let t = new TextEncoder().encode(i(e));
  return Array.from(
    new Uint8Array(await crypto.subtle.digest(`SHA-256`, t)),
    (e) => e.toString(16).padStart(2, `0`),
  ).join(``);
}
async function c(e, t) {
  let n = [...t];
  o = {
    fingerprints: await Promise.all(e.map(s)),
    indices: n,
  };
}
async function l(e) {
  let t = o;
  if (!t) return null;
  o = null;
  let n = await Promise.all(e.map(s)),
    r = new Set();
  return t.indices.flatMap((e) => {
    let i = t.fingerprints
        .slice(0, e)
        .filter((n) => n === t.fingerprints[e]).length,
      a = n.flatMap((n, r) => (n === t.fingerprints[e] ? [r] : []))[i];
    return a === void 0 || r.has(a) ? [] : (r.add(a), [a]);
  });
}
function u(n, r) {
  let a = r ? t(r.item) : null,
    c = !1;
  return async (l, u) => {
    if (!r || !a) throw Error(`购物车编辑上下文缺失`);
    if (c) throw Error(`正在保存，请勿重复操作`);
    c = !0;
    let d = t(e(a, l));
    try {
      let c = (await n.get(`/cart`)).list?.[r.position];
      if (!c || i(c) !== i(a))
        throw Error(`购物车商品已变化，请返回购物车刷新后重新编辑`);
      if (!u()) throw Error(`配置已改变，请重新确认报价后保存`);
      let l = await n.put(`/cart/${r.position}`, {
          ...d,
          expected_item: e(a),
        }),
        f = a;
      a = t({
        ...a,
        ...d,
      });
      let p = o;
      return (
        p &&
          p.fingerprints[r.position] === (await s(f)) &&
          (p.fingerprints[r.position] = await s(a)),
        l
      );
    } finally {
      c = !1;
    }
  };
}
export { l as a, c as i, t as n, a as o, u as r, n as t };