function toast(msg) {
  const el = document.getElementById("toast");
  el.textContent = msg;
  el.classList.remove("hidden");
  setTimeout(() => el.classList.add("hidden"), 2200);
}

document.querySelectorAll("[data-copy]").forEach((btn) => {
  btn.addEventListener("click", async () => {
    const text = btn.dataset.copy;
    try {
      await navigator.clipboard.writeText(text);
      toast("已复制到剪贴板");
    } catch {
      toast("复制失败，请手动选择文本");
    }
  });
});

const modal = document.getElementById("modal");
const addBtn = document.getElementById("addBtn");
const cancelBtn = document.getElementById("cancelBtn");
const confirmAddBtn = document.getElementById("confirmAddBtn");
const nodeName = document.getElementById("nodeName");

if (addBtn) {
  addBtn.addEventListener("click", () => {
    nodeName.value = "";
    modal.classList.remove("hidden");
    nodeName.focus();
  });
}

if (cancelBtn) {
  cancelBtn.addEventListener("click", () => modal.classList.add("hidden"));
}

if (confirmAddBtn) {
  confirmAddBtn.addEventListener("click", async () => {
    const name = nodeName.value.trim() || "新节点";
    confirmAddBtn.disabled = true;
    try {
      const res = await fetch("/api/nodes", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ name }),
      });
      const data = await res.json();
      if (!res.ok) throw new Error(data.error || "创建失败");
      location.reload();
    } catch (err) {
      toast(err.message);
    } finally {
      confirmAddBtn.disabled = false;
    }
  });
}

document.querySelectorAll(".delete-btn").forEach((btn) => {
  btn.addEventListener("click", async () => {
    const id = btn.dataset.id;
    if (!confirm("确定删除该节点？删除后对应链接将失效。")) return;
    btn.disabled = true;
    try {
      const res = await fetch(`/api/nodes/${id}`, { method: "DELETE" });
      const data = await res.json();
      if (!res.ok) throw new Error(data.error || "删除失败");
      location.reload();
    } catch (err) {
      toast(err.message);
      btn.disabled = false;
    }
  });
});