Track DHL shipment and extract full event timeline

(() => {
  const clean=v=>(v||'').replace(/\s+/g,' ').trim()||null;
  const root=document.querySelector('main, .c-tracking--container')||document.body;
  const text=root.innerText||'';
  const lines=text.split(/\r?\n/).map(clean).filter(Boolean);
  const requested=(new URL(location.href).searchParams.get('tracking-id')||'').split(',').map(x=>decodeURIComponent(x).trim()).filter(Boolean);
  const message=clean(document.querySelector('.c-tracking-result-message--content')?.innerText)||lines.find(x=>/not found|could not be found|unable to find|no shipment|tracking attempt was not successful|multiple match|multiple shipment|multiple numbers|select (?:a|your) shipment|invalid|enter a valid|tracking number|required|must contain|too long|maximum|characters/i.test(x))||null;
  const displayed=clean((text.match(/Tracking Code:?\s*([^\n]+)/i)||[])[1])?.replace(/\s+/g,'')||null;
  const notFound=/not found|could not be found|unable to find|no shipment|tracking attempt was not successful|sorry, your tracking attempt was not successful/i.test(text);
  const multiple=/multiple match|multiple shipment|multiple numbers|more than one result|select (?:a|your) shipment/i.test(text)||!!document.querySelector('.c-multiple-tracking-result--container');
  const validation=/invalid|validation|enter a valid|tracking number|required|must contain|too long|maximum|characters/i.test(text)&&!multiple&&!notFound;
  const details=document.querySelector('#panel_details');
  const detailText=clean(details?.innerText)||'';
  const label=(source,name)=>{const e=name.replace(/[.*+?^${}()|[\\]\\\\]/g,'\\\\$&');const r=new RegExp('(?:^|\\\\s)'+e+'\\\\s*:?[\\\\s]+(.+?)(?=\\\\s+(?:Total Pieces|Service|Weight|Reference|Local Tracking Number|$))','i');return clean(source.match(r)?.[1]);};
  const rows=[...document.querySelectorAll('#panel_events tr')].filter(r=>r.querySelector('.c-event-log--date'));
  const events=rows.map((row,i)=>{const cells=[...row.children].map(c=>clean(c.innerText));return {date:clean(row.querySelector('.c-event-log--date')?.innerText)||cells[0]||null,local_time:clean(row.querySelector('.c-event-log--localtime')?.innerText)||cells[1]||null,status:clean(row.querySelector('td.c-event-log--status > .c-event-log--status-content > .c-event-log--status')?.innerText)||clean(row.querySelector('.c-event-log--status')?.innerText)||cells[2]||null,location:clean(row.querySelector('.c-event-log--location')?.innerText)||cells[3]||null,rating:clean(row.querySelector('[class*="rating"], [data-rating]')?.innerText)||null,_i:i};}).filter(e=>e.date||e.local_time||e.status||e.location);
  const parsed=e=>Date.parse(`${e.date||''} ${e.local_time||''}`);
  events.sort((a,b)=>{const x=parsed(a),y=parsed(b);return Number.isNaN(x)||Number.isNaN(y)?a._i-b._i:x-y;});events.forEach(e=>delete e._i);
  const line=name=>{const e=name.replace(/[.*+?^${}()|[\\]\\\\]/g,'\\\\$&');const r=new RegExp('^'+e+'\\\\s*:?[\\\\s]*(.*)$','i');const hit=lines.find(x=>r.test(x));return clean(hit?.match(r)?.[1]);};
  const cards=[...document.querySelectorAll('.c-multiple-tracking-result--container .js--tracking-result-overview--box')].map(card=>{const t=clean(card.innerText)||'';const codes=[...new Set((t.match(/\b\d{8,30}\b/g)||[]))];return {tracking_number:codes[0]||null,status:clean(t.match(/(?:Status|Shipment status)\s*:?\s*(.*?)(?=\s+(?:Tracking|Origin|Destination|Service|$))/i)?.[1])||null,text:t};}).filter(x=>x.tracking_number||x.text);
  const candidateNumbers=[...new Set(cards.map(c=>c.tracking_number).filter(Boolean))];
  const invalid=notFound||multiple||validation||!!(displayed&&requested.length===1&&displayed!==requested[0]);
  const normal={requested_tracking_number:requested[0]||null,input_value:document.querySelector('#c-tracking--input')?.value||null,tracking_number:displayed||requested[0]||null,result_state:multiple?'multiple-match':(notFound?'not-found':(validation?'validation':(events.length?'result':'empty-result'))),precise_message:message,candidate_tracking_numbers:multiple?candidateNumbers:[],not_found:notFound,identity_mismatch:!!(displayed&&requested.length===1&&displayed!==requested[0]),multiple_match:multiple,validation_error:validation,status:invalid?null:line('Status'),handler:invalid?null:line('This shipment is handled by'),service:invalid?null:(label(detailText,'Service')||clean(details?.querySelector('dt')?.nextElementSibling?.innerText)),origin:invalid?null:line('Origin'),destination:invalid?null:line('Destination'),last_update:invalid?null:line('Last Update'),last_location:invalid?null:(events.at(-1)?.location||null),local_tracking_number:invalid?null:label(detailText,'Local Tracking Number'),weight:invalid?null:label(detailText,'Weight'),total_pieces:invalid?null:label(detailText,'Total Pieces'),expected_delivery:invalid?null:clean((text.match(/Expected(?: delivery| delivery date)?:\s*([^\n]+)/i)||[])[1]),events_count:invalid?0:events.length,events:invalid?[]:events};
  const records=requested.map(id=>{const card=cards.find(c=>c.tracking_number===id);if(card)return {...normal,requested_tracking_number:id,tracking_number:id,result_state:'multiple-match',precise_message:message,candidate_tracking_numbers:candidateNumbers,multiple_match:true,not_found:false,validation_error:false,status:card.status,service:null,origin:null,destination:null,last_update:null,last_location:null,events_count:0,events:[]};if(requested.length>1&&!displayed&&/not found|could not be found|unable to find|no shipment/i.test(text))return {...normal,requested_tracking_number:id,tracking_number:id,result_state:'not-found',not_found:true,events_count:0,events:[],status:null,service:null,origin:null,destination:null,last_update:null,last_location:null};return requested.length===1?normal:{...normal,requested_tracking_number:id,tracking_number:id};});
  return {requested_tracking_numbers:requested,records};
})();