'use strict';
const {test}=require('node:test');
const assert=require('node:assert/strict');
const fs=require('node:fs');
const path=require('node:path');
const vm=require('node:vm');
const flush=async()=>{for(let i=0;i<12;i++)await new Promise(resolve=>setImmediate(resolve));};

function fixture({holdImport=false,holdHeartbeat=false,rejectSkip=false}={}) {
 const handlers=new Map(),calls=[],navigations=[],storage=new Map(),timers=new Set();
 const job={id:'first',state:'preparing',title:'标题',source:'来源',fid:125,account:{uid:'123',name:'账号'}};
 const run={running:true,epoch:1,active:job.id,owner:'tab-a'};
 const body={innerHTML:'正文',innerText:'正文',querySelectorAll:()=>[]};
 const subject={value:''};let tick,finishImport,finishHeartbeat,rolledBack=false;
 class Event {constructor(type,options={}){this.type=type;Object.assign(this,options);}}
 const doc={
  body:{append(){}},createElement:()=>({style:{}}),
  querySelector(selector){
   if(selector==='#mumucms_username')return {childNodes:[{nodeType:3,textContent:'账号'}],href:'https://www.dww11.com/home.php?uid=123',querySelectorAll:()=>[]};
   if(selector==='#e_iframe')return {contentDocument:{body}};
   if(selector==='#subject')return subject;
   return null;
  },
  addEventListener(type,fn){if(!handlers.has(type))handlers.set(type,[]);handlers.get(type).push(fn);},
  dispatchEvent(event){for(const fn of handlers.get(event.type)||[])fn(event);}
 };
 const reply=(id,value,error)=>doc.dispatchEvent(new Event('dww11:local-response',{detail:JSON.stringify({id,value,error})}));
 doc.addEventListener('dww11:local-request',event=>{
  const {id,route,body}=JSON.parse(event.detail);calls.push({route,body});
  if(route==='heartbeat'&&holdHeartbeat&&calls.filter(x=>x.route==='heartbeat').length>1) {
   finishHeartbeat=()=>reply(id,run);return;
  }
  let value={};
  if(route==='heartbeat')value=run;
  if(route==='next')value={action:job.state==='preparing'?'prepare':'resume',job,run};
  if(route==='event')job.state=body.state;
  if(route==='skip') {
   if(rejectSkip){reply(id,null,'状态已改变');return;}
   job.state='skipped';run.active=null;run.epoch++;value={ok:true,fid:125,run};
  }
  if(route==='stop')run.running=false;
  reply(id,value);
 });
 let sequence=0;
 const context={document:doc,CustomEvent:Event,Node:{TEXT_NODE:3},URL,AbortController,
  crypto:{randomUUID:()=>sequence++===0?'tab-a':`request-${sequence}`},sessionStorage:{getItem:k=>storage.get(k),setItem:(k,v)=>storage.set(k,v),removeItem:k=>storage.delete(k)},
  location:{href:'https://www.dww11.com/forum.php?mod=post&action=newthread&fid=125',assign:url=>navigations.push(url)},
  setInterval:fn=>{tick=fn;},setTimeout:(fn,ms)=>{const t=setTimeout(fn,ms);timers.add(t);return t;},clearTimeout:t=>{clearTimeout(t);timers.delete(t);}
 };
 context.window={DWW11Importer:{stagePackage:async()=>({}),importPrepared:async({signal})=>{
  if(holdImport)await new Promise((resolve,reject)=>{finishImport=()=>{rolledBack=true;reject(signal.reason);};signal.addEventListener('abort',()=>{}, {once:true});});
  signal.throwIfAborted();subject.value='标题';return {attachmentOrder:[]};
 },verifyEditorImages:async()=>{}},DWW11Formatter:{format(){}}};
 vm.runInNewContext(fs.readFileSync(path.join(__dirname,'../browser/runner.js'),'utf8'),context);
 return {calls,navigations,job,run,storage,doc,Event,tick:()=>tick(),skip:()=>doc.dispatchEvent(new Event('dww11:skip-article')),
  finishImport:()=>finishImport(),finishHeartbeat:()=>finishHeartbeat(),rolledBack:()=>rolledBack,
  close:()=>{for(const t of timers)clearTimeout(t);}};
}

test('跳过待审文章后打开全新编辑器，不再领取或提交旧稿',async()=>{
 const f=fixture();try{
  await flush();assert.equal(f.job.state,'awaiting_user_review');
  f.skip();f.skip();await flush();
  assert.equal(f.calls.filter(x=>x.route==='skip').length,1);
  assert.equal(f.job.state,'skipped');assert.equal(f.storage.has('auto-news-current'),false);
  assert.deepEqual(f.navigations,['https://www.dww11.com/forum.php?mod=post&action=newthread&fid=125']);
  const count=f.calls.length;await f.tick();assert.equal(f.calls.length,count);
  assert.equal(f.calls.some(x=>x.route==='accept'),false);
 }finally{f.close();}
});

test('导入中跳过等待取消回滚，旧回调不会把任务改成异常',async()=>{
 const f=fixture({holdImport:true});try{
  await flush();assert.equal(f.job.state,'importing');f.skip();await flush();
  assert.equal(f.calls.some(x=>x.route==='skip'),false);assert.deepEqual(f.navigations,[]);
  f.finishImport();await flush();
  assert.equal(f.rolledBack(),true);assert.equal(f.job.state,'skipped');
  assert.equal(f.calls.some(x=>x.body.state==='needs_attention'),false);
  assert.equal(f.navigations.length,1);
 }finally{f.close();}
});

test('跳过时忽略较早的轮询响应',async()=>{
 const f=fixture({holdHeartbeat:true});try{
  await flush();const pending=f.tick();await flush();f.skip();await flush();
  const before=f.calls.filter(x=>x.route==='next').length;
  f.finishHeartbeat();await pending;
  assert.equal(f.calls.filter(x=>x.route==='next').length,before);
 }finally{f.close();}
});

test('人工发表后的任务不能直接跳过',async()=>{
 const f=fixture();try{
  await flush();f.doc.dispatchEvent(new f.Event('click',{isTrusted:true,target:{closest:()=>true}}));
  await flush();assert.equal(f.job.state,'user_submitting');f.skip();await flush();
  assert.equal(f.calls.some(x=>x.route==='skip'),false);assert.deepEqual(f.navigations,[]);
 }finally{f.close();}
});

test('跳过请求失败时暂停且保留当前稿件',async()=>{
 const f=fixture({rejectSkip:true});try{
  await flush();f.skip();await flush();
  assert.equal(f.run.running,false);assert.equal(f.job.state,'awaiting_user_review');assert.deepEqual(f.navigations,[]);
  assert.equal(f.storage.has('auto-news-current'),true);
 }finally{f.close();}
});