const $ = (id) => document.getElementById(id);

function setStatus(msg, danger = false) {
  const el = $("status");
  if (!el) return;
  el.style.color = danger ? "#b42318" : "#0f5f3d";
  el.textContent = msg;
}

function setLoading(button, loading, idleText, loadingText) {
  if (!button) return;
  button.disabled = loading;
  button.textContent = loading ? loadingText : idleText;
}

async function postJSON(url, body) {
  const res = await fetch(url, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify(body),
  });
  const data = await res.json();
  if (!res.ok) throw new Error(data.detail || "请求失败");
  return data;
}

const resetBtn = $("resetBtn");

if (resetBtn) {
  resetBtn.addEventListener("click", async () => {
    setLoading(resetBtn, true, "重置密码", "提交中...");
    try {
      const out = await postJSON("/api/auth/password/forgot", {
        username: ($("username") && $("username").value.trim()) || "",
        reset_key: ($("resetKey") && $("resetKey").value.trim()) || "",
        new_password: ($("newPassword") && $("newPassword").value) || "",
      });
      if (!out.ok) {
        setStatus(out.detail || "重置失败", true);
        return;
      }
      setStatus("密码重置成功，2 秒后跳转登录页。");
      setTimeout(() => {
        window.location.href = "/auth?next=/";
      }, 2000);
    } catch (e) {
      setStatus(e.message || "重置失败", true);
    } finally {
      setLoading(resetBtn, false, "重置密码", "提交中...");
    }
  });
}