'use strict';
const WS_URL = 'ws://127.0.0.1:18792/cdp';
const TOKEN  = '0537d84a67f2e43b525964bb43d93f6dfae1ec1b50946455';
const TARGET_URL = 'https://diaonline.supermercadosdia.com.ar/medios-de-pago-y-promociones';
const WS = require('/usr/lib/node_modules/openclaw/node_modules/ws').WebSocket ||
           require('/usr/lib/node_modules/openclaw/node_modules/ws');
const fs = require('fs');
const ws = new WS(WS_URL, { headers: { 'x-openclaw-relay-token': TOKEN } });
let _id=1, sessionId=null, started=false;
const cbs=new Map();
const promos=[];

function send(method,params,cb){const id=_id++;const m={id,method,params:params||{}};if(sessionId)m.sessionId=sessionId;if(cb)cbs.set(id,cb);ws.send(JSON.stringify(m));}
function evalV(expr,cb){send('Runtime.evaluate',{expression:expr,returnByValue:true},(r)=>cb(r&&r.result&&r.result.value));}
function evalJ(expr,cb){evalV('(function(){try{return JSON.stringify('+expr+');}catch(e){return JSON.stringify({err:e.message});}})()',v=>{try{cb(JSON.parse(v||'null'));}catch(e){cb(null);}});}

ws.on('open',()=>{
  send('Target.getTargets',{},(res)=>{
    const t=(res.targetInfos||[]).filter(t=>t.type==='page')[0];
    send('Target.attachToTarget',{targetId:t.targetId,flatten:true},(r2)=>{
      sessionId=r2.sessionId;
      send('Page.enable');
      send('Page.navigate',{url:TARGET_URL});
    });
  });
});

ws.on('message',raw=>{
  const msg=JSON.parse(raw);
  if(msg.id&&cbs.has(msg.id)){const cb=cbs.get(msg.id);cbs.delete(msg.id);cb(msg.result||{});return;}
  if(!msg.method)return;
  if(msg.method==='Page.frameNavigated'){
    const url=msg.params&&msg.params.frame&&msg.params.frame.url;
    if(url&&url.includes('medios-de-pago')&&!started){
      started=true;
      console.log('Navigated. Waiting 8s...');
      setTimeout(extractBase,8000);
    }
  }
});

// Step 1: extract all promo base data without legal text
function extractBase(){
  evalJ(`(function(){
    var items=document.querySelectorAll('[class*="list-by-days__item"]');
    var out=[];
    [].forEach.call(items,function(item){
      var flags=[].map.call(item.querySelectorAll('[class*="flag"]'),function(el){return el.textContent.trim();});
      var first=item.querySelector('[class*="first-text"]');
      var second=item.querySelector('[class*="second-text"]');
      var third=item.querySelector('[class*="third-text"]');
      var img=item.querySelector('img');
      out.push({
        canal:flags.join('|'),
        descuento:first?first.textContent.trim():'',
        detalle:second?second.textContent.trim():'',
        vigencia:third?third.textContent.trim():'',
        imgAlt:img?img.alt:'',
        imgSrc:img?img.src.split('/').pop():''
      });
    });
    return {count:items.length,items:out};
  })`,data=>{
    if(!data||!data.items){console.log('No data:',data);ws.close();return;}
    console.log('Got',data.count,'promo items');
    data.items.forEach((p,i)=>promos.push(Object.assign({legal:'',btnIdx:i},p)));
    // Step 2: click each Ver Legales and get legal text
    clickNext(0);
  });
}

function clickNext(idx){
  if(idx>=promos.length){saveAndDone();return;}
  const CLOSE_EXPR=`(function(){
    // Close any open modal first
    var closeBtn=document.querySelector('[class*="vtex-modal"][class*="close"],[class*="modal__close"],[aria-label="Close"],[aria-label="Cerrar"]');
    if(closeBtn)closeBtn.click();
    document.dispatchEvent(new KeyboardEvent('keydown',{key:'Escape',bubbles:true,cancelable:true}));
  })()`;

  evalV(CLOSE_EXPR,()=>{
    setTimeout(()=>{
      // Click button idx
      evalV(`(function(){
        var btns=document.querySelectorAll('[class*="bank-modal__button"]');
        if(!btns[${idx}])return 'missing';
        btns[${idx}].scrollIntoView({block:'center',behavior:'instant'});
        btns[${idx}].click();
        return 'ok';
      })()`,res=>{
        if(res==='missing'){clickNext(idx+1);return;}
        // Wait for modal render
        setTimeout(()=>{
          evalV(`(function(){
            // The legal text appears in bank-modal__text inside the item's bank-modal div
            // OR in a vtex-modal overlay
            var texts=[
              document.querySelector('[class*="bank-modal__text"]'),
              document.querySelector('[class*="vtex-modal__modal"] p'),
              document.querySelector('[class*="vtex-modal__modal"] div > p'),
            ];
            for(var i=0;i<texts.length;i++){
              if(texts[i]){
                var t=(texts[i].innerText||'').replace(/\\s+/g,' ').trim();
                if(t.length>20)return t;
              }
            }
            // Fallback: any fixed element with legal-sounding text
            var all=document.querySelectorAll('*');
            for(var j=0;j<all.length;j++){
              var el=all[j];
              var cs=window.getComputedStyle(el);
              if(cs.position==='fixed'&&el.offsetParent!==null){
                var t2=(el.innerText||'').replace(/\\s+/g,' ').trim();
                if(t2.length>50&&t2.length<5000&&!/cookie|chat|bot/i.test(t2)){
                  return t2.slice(0,600);
                }
              }
            }
            return '';
          })()`,legal=>{
            promos[idx].legal=legal||'';
            process.stdout.write('['+idx+'] '+promos[idx].descuento+' legal: '+(legal?legal.slice(0,60)+'...':'empty')+'\n');
            clickNext(idx+1);
          });
        },1800);
      });
    },400);
  });
}

function saveAndDone(){
  console.log('\n=== ALL PROMOS ===');
  promos.forEach((p,i)=>{
    console.log('['+i+'] '+p.canal+' | '+p.descuento+' | '+p.detalle.slice(0,50)+' | '+p.vigencia.slice(0,40));
    if(p.imgAlt)console.log('   bank: '+p.imgAlt);
    if(p.legal)console.log('   LEGAL: '+p.legal.slice(0,200));
    console.log();
  });
  const out={generatedAt:new Date().toISOString(),source:'chrome-relay-dom',promos};
  fs.writeFileSync('/tmp/dia_promos_full.json',JSON.stringify(out,null,2));
  console.log('Saved /tmp/dia_promos_full.json');
  ws.close();
}

ws.on('error',e=>console.error('WS err:',e.message));
ws.on('close',()=>process.exit(0));
setTimeout(()=>{console.log('Timeout');saveAndDone();},120000);