(function () {
  "use strict";

  const root = document.getElementById("options-settings-root");
  if (!root) return;

  async function apiJson(url, opts) {
    const r = await fetch(url, Object.assign({ credentials: "same-origin" }, opts || {}));
    return r.json();
  }

  function setMsg(id, text, isErr) {
    const el = document.getElementById(id);
    if (!el) return;
    el.textContent = text || "";
    el.classList.toggle("opt-error", !!isErr);
  }

  document.getElementById("opt-set-swap-btn").addEventListener("click", async function () {
    const amount = parseFloat(document.getElementById("opt-set-swap-amount").value);
    if (!amount || amount <= 0) {
      setMsg("opt-set-swap-msg", "请输入有效数量", true);
      return;
    }
    const d = await apiJson("/api/options/spot/swap", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({
        direction: document.getElementById("opt-set-swap-dir").value,
        amount: amount,
      }),
    });
    setMsg("opt-set-swap-msg", d.ok ? "兑换单已提交" : (d.msg || "失败"), !d.ok);
  });

  document.getElementById("opt-set-int-btn").addEventListener("click", async function () {
    const amount = parseFloat(document.getElementById("opt-set-int-amount").value);
    if (!amount || amount <= 0) {
      setMsg("opt-set-int-msg", "请输入有效数量", true);
      return;
    }
    const d = await apiJson("/api/options/transfer", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({
        ccy: document.getElementById("opt-set-int-ccy").value,
        from: document.getElementById("opt-set-int-from").value,
        to: document.getElementById("opt-set-int-to").value,
        amount: amount,
      }),
    });
    setMsg("opt-set-int-msg", d.ok ? "划转成功" : (d.msg || "失败"), !d.ok);
  });

  document.getElementById("opt-set-cross-btn").addEventListener("click", async function () {
    const amount = parseFloat(document.getElementById("opt-set-cross-amount").value);
    if (!amount || amount <= 0) {
      setMsg("opt-set-cross-msg", "请输入有效数量", true);
      return;
    }
    const d = await apiJson("/api/options/cross-transfer", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({
        ccy: document.getElementById("opt-set-cross-ccy").value,
        amount: amount,
        from_account: document.getElementById("opt-set-cross-from-acct").value,
        to_account: document.getElementById("opt-set-cross-to-acct").value,
        direction: document.getElementById("opt-set-cross-dir").value,
      }),
    });
    setMsg("opt-set-cross-msg", d.ok ? "划转成功" : (d.msg || "失败"), !d.ok);
    if (d.ok && typeof refreshAccountSnapshot === "function") refreshAccountSnapshot();
  });
})();