/**
 * 待支付订单浮窗无刷新同步（对齐参考主题 pay.js 下单后替换 .float-right-wait-pay）。
 *
 * 订单相关缓存标签失效（下单待支付 / 支付 / 关闭）时，向服务端拉取最新浮窗片段
 * 并替换现有节点；无待支付订单时移除浮窗。
 *
 * @package Jio
 */
(function (window, document) {
  "use strict";

  var SELECTOR = ".float-right-wait-pay";
  var timer = null;
  var seq = 0;

  function loggedIn() {
    var config = window.jioData || window.jio || {};
    return !!config.isLoggedIn;
  }

  function touchesOrders(tags) {
    if (!Array.isArray(tags) || !tags.length) return true;
    return tags.some(function (tag) {
      tag = String(tag || "");
      return tag === "orders" || tag.indexOf("order:") === 0;
    });
  }

  function render(html) {
    var current = document.querySelector(SELECTOR);
    if (!html) {
      if (current) current.remove();
      return;
    }
    var holder = document.createElement("div");
    holder.innerHTML = html;
    var next = holder.firstElementChild;
    if (!next) return;
    if (current) current.replaceWith(next);
    else document.body.appendChild(next);
    if (window.jQuery && window.jQuery.fn.countdown) {
      window.jQuery(next).find("[data-countdown]").countdown();
    }
  }

  function refresh() {
    if (!loggedIn() || !window.JioRequest) return;
    var id = ++seq;
    window.JioRequest.get("/orders/wait-pay-float").then(function (result) {
      if (id !== seq) return;
      var data = result.data || {};
      render(String(data.html || ""));
    }).catch(function () { /* 保留现有浮窗 */ });
  }

  document.addEventListener("jio:cache:invalidated", function (event) {
    if (!touchesOrders(event.detail && event.detail.tags)) return;
    window.clearTimeout(timer);
    timer = window.setTimeout(refresh, 300);
  });
})(window, document);