/* WR-562k18: 对话自动刷新 —— 出片/通知完成后自动出现在对话框, 不用用户手动重进页面。
   只做一件事: 每 20s 拉一次"最近 6 条历史", 把本地还没有的助手消息追加到对话框尾部。
   不改发送/确认/计费/门禁任何逻辑; 首次只"记住"不追加, 避免一次灌进一堆旧消息。
   回滚: 删本文件 + index.html 里对应的 <script> 引用。 */
(function () {
  'use strict';
  if (window.__wr562nm) return;
  window.__wr562nm = true;
  var API = 'https://api-gateway.duoweiying.cn';
  var INTERVAL = 20000, KEEP_MIN = 30;
  var seen = {}, primed = false, until = 0, busy = false;

  function uid() {
    try {
      var u = JSON.parse(localStorage.getItem('user_info') || '{}') || {};
      var v = u.id || u.username; if (v) return String(v);
    } catch (e) {}
    return localStorage.getItem('user_id') || '';
  }
  function wrapEl() { return document.getElementById('ai-chat-wrapper') || document.querySelector('.chat-messages'); }
  function fp(m) { return String(m.role || '') + '|' + String(m.content || '').slice(0, 160); }
  function inDom(t) {
    var w = wrapEl(); if (!w) return false;
    var s = String(t || '').replace(/\s+/g, ' ').trim().slice(0, 50);
    if (!s) return false;
    var bs = w.querySelectorAll('.chat-message, .message-card, .message-bubble');
    for (var i = 0; i < bs.length; i++) {
      if ((bs[i].textContent || '').replace(/\s+/g, ' ').indexOf(s) >= 0) return true;
    }
    return false;
  }
  function arm() { until = Date.now() + KEEP_MIN * 60000; }
  function poll() {
    if (busy) return;
    var u = uid(); if (!u) return;
    busy = true;
    fetch(API + '/ai-army/conversations/history?limit=6&user_id=' + encodeURIComponent(u))
      .then(function (r) { return r.json(); })
      .then(function (d) {
        busy = false;
        var msgs = (d && d.data && d.data.messages) || [];
        if (!msgs.length) return;
        if (!primed) {                       /* 首次: 只登记, 不追加 */
          for (var j = 0; j < msgs.length; j++) seen[fp(msgs[j])] = 1;
          primed = true;
          return;
        }
        var added = 0;
        /* 接口返回是"新→旧", 追加到对话尾部要"旧→新" */
        for (var i = msgs.length - 1; i >= 0; i--) {
          var m = msgs[i];
          if (String(m.role) === 'user') continue;      /* 自己发的不用补 */
          var k = fp(m);
          if (seen[k]) continue;
          seen[k] = 1;
          if (inDom(m.content)) continue;
          try {
            if (typeof window.addMessageToChat === 'function') { window.addMessageToChat(m.content, 'ai'); added++; }
          } catch (e) {}
        }
        if (added) { try { if (typeof window.switchTab === 'function') window.switchTab('home'); } catch (e) {} }
      })
      .catch(function () { busy = false; });
  }
  function start() {
    try {
      var mo = new MutationObserver(function () {
        var w = wrapEl(); if (!w) return;
        var t = w.textContent || '';
        if (t.indexOf('\u4efb\u52a1\u5df2\u63d0\u4ea4') >= 0 || t.indexOf('\u4efb\u52a1ID') >= 0) arm();
      });
      mo.observe(document.documentElement, { childList: true, subtree: true });
    } catch (e) {}
    setInterval(poll, INTERVAL);
    setTimeout(poll, 5000);
    document.addEventListener('visibilitychange', function () { if (!document.hidden) poll(); });
    try { window.wr562PollNewMsg = poll; } catch (e) {}
  }
  if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', function () { setTimeout(start, 4000); });
  else setTimeout(start, 4000);
})();