// ==UserScript==
// @name         新闻工作台 · 本地连接
// @namespace    local.dww11.auto-news
// @version      0.1.1
// @match        https://www.dww11.com/*
// @match        https://dww11.com/*
// @match        https://house.dww11.com/*
// @grant        GM_xmlhttpRequest
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_addValueChangeListener
// @connect      127.0.0.1
// @run-at       document-start
// @noframes
// ==/UserScript==
(() => {
  'use strict';
  const allowed = new Set(['heartbeat','next','package','event','accept','switch-begin','takeover','stop','current','skip']);
  let token = GM_getValue('pairToken',''), port = GM_getValue('pairPort',8770);
  let stopRevision = 0;
  const signalStop = () => { stopRevision++; document.dispatchEvent(new CustomEvent('dww11:auto-stop')); };
  GM_addValueChangeListener('halted', (_key, _old, value) => { if (value) signalStop(); });
  function request(route, body) {
    return new Promise((resolve, reject) => {
      if (!token) return reject(new Error('请在左下角填入本地工作台的连接码'));
      GM_xmlhttpRequest({method:'POST',url:`http://127.0.0.1:${port}/bridge/${route}`,
        headers:{'Content-Type':'application/json','X-Session-Token':token},data:JSON.stringify(body),timeout:60000,
        onload(response) { try { const value=JSON.parse(response.responseText); if(response.status!==200) throw new Error(value.error || '本地连接失败'); resolve(value); } catch(error) { reject(error); } },
        onerror:()=>reject(new Error('本地服务未连接，请检查服务与脚本权限')),
        ontimeout:()=>reject(new Error('本地服务超时，任务已暂停'))});
    });
  }
  document.addEventListener('dww11:local-request', async event => {
    let message;
    try {message=JSON.parse(event.detail);} catch {return;}
    if (!allowed.has(message.route) || typeof message.id !== 'string') return;
    try {
      if (message.route==='stop') { GM_setValue('halted',true); signalStop(); }
      const revision = stopRevision;
      let value=await request(message.route,message.body || {});
      if (message.route==='heartbeat') {
        if (revision !== stopRevision) value = {...value, running:false, reason:'终止后忽略旧连接响应'};
        GM_setValue('halted',!value.running);
        if (!value.running) signalStop();
      }
      document.dispatchEvent(new CustomEvent('dww11:local-response',{detail:JSON.stringify({id:message.id,value})}));
    } catch(error) {
      if (message.route==='heartbeat') {GM_setValue('halted',true); signalStop();}
      document.dispatchEvent(new CustomEvent('dww11:local-response',{detail:JSON.stringify({id:message.id,error:error.message})}));
    }
  });
  function mount() {
    if (!document.body || document.getElementById('auto-news-connection')) return;
    const host=document.createElement('div');host.id='auto-news-connection';
    host.style.cssText='position:fixed;left:16px;bottom:16px;z-index:2147483647';
    const shadow=host.attachShadow({mode:'closed'});
    shadow.innerHTML='<style>section{font:13px/1.6 system-ui;background:white;color:#24364a;border:1px solid #ccd7e0;border-radius:10px;padding:12px;width:250px;box-shadow:0 3px 20px #0002}button,input{font:inherit;box-sizing:border-box;padding:7px;margin:4px 0;width:100%}button{cursor:pointer}#halt{background:#ad302d;color:white;border:0;border-radius:6px}small{display:block}</style><section><strong>新闻工作台 · 本地连接</strong><button id="halt">终止流程</button><details><summary>连接设置</summary><label>本地端口<input id="port" type="number" min="1" max="65535"></label><label>连接码<input id="token" type="password" autocomplete="off"></label><button id="save">保存连接设置</button></details><small id="status">请启动本地工作台并配对</small></section>';
    const $=id=>shadow.getElementById(id);$('port').value=port;
    const skip=document.createElement('button');skip.id='skip';skip.type='button';skip.textContent='跳过本文章';
    $('halt').before(skip);
    skip.onclick=()=>document.dispatchEvent(new CustomEvent('dww11:skip-article'));
    document.addEventListener('dww11:skip-busy',event=>{skip.disabled=Boolean(event.detail);});
    $('save').onclick=()=>{
      const value=Number($('port').value);if(!Number.isInteger(value)||value<1||value>65535){$('status').textContent='端口无效';return;}
      if($('token').value.trim()) token=$('token').value.trim();port=value;
      GM_setValue('pairToken',token);GM_setValue('pairPort',port);$('token').value='';$('status').textContent='已保存；服务重启后需要更新连接码';
    };
    $('halt').onclick=async()=>{
      GM_setValue('halted',true);signalStop();$('status').textContent='已终止；在途请求仍可能完成';
      try {await request('stop',{});} catch(error) {$('status').textContent+='。'+error.message;}
    };
    document.addEventListener('dww11:connection-status',event=>{$('status').textContent=String(event.detail).slice(0,250);});
    document.body.append(host);
    if(GM_getValue('halted',true)) signalStop();
  }
  if(document.readyState==='loading') document.addEventListener('DOMContentLoaded',mount,{once:true}); else mount();
})();