/* fdx-instant-v2 — INSTANT-DOWNLOAD pages + lead attribution & GA4. Same approved logic as the 1:1 Meetings pilot: on submit auto-download the asset (data-asset-url) then redirect to /thank-you/. Manual pages keep the shared v3. */
(function(){
  function init(){
    var lp=document.querySelector('.fdx-lp'); if(!lp){ return; }
    var reduce=window.matchMedia&&window.matchMedia('(prefers-reduced-motion: reduce)').matches;
    var modal=document.getElementById('fdx-modal');
    var lastFocus=null, gi;
    var triggerAsset='', triggerLabel=''; // set when a pop-up trigger carries its own asset (e.g. resource cards)
    // ===== Lead attribution (Option 3 hybrid): page + CTA + asset + submission type =====
    var FDX_ASSET_NAMES={"fdx-delegate-breakdown.pdf":"Delegate Breakdown","fdx-uk-market-entry-brief.pdf":"UK Market-Entry Brief","fdx-sponsorship-roi-guide.pdf":"Sponsorship ROI Guide","fdx-1to1-meetings-guide.pdf":"1:1 Meetings Guide","fdx-executive-brief.pdf":"Executive Brief","fdx-medical-affairs-brief.pdf":"Medical Affairs Brief","fdx-product-marketing-brief.pdf":"Product Marketing Brief","fdx-marketing-brief.pdf":"Marketing Brief","fdx-molecular-diagnostics-brief.pdf":"Molecular Diagnostics Brief","fdx-selling-into-nhs-labs-guide.pdf":"Selling Into NHS Labs Guide","fdx-lead-generation-playbook.pdf":"Lead-Generation Playbook","fdx-partnership-guide.pdf":"Partnership Guide","fdx-speaking-showcase-guide.pdf":"Speaking & Showcase Guide"};
    function fdxAssetName(u){ if(!u){ return ""; } var f=(""+u).split("/").pop().split("?")[0]; return FDX_ASSET_NAMES[f]||f.replace(/^fdx-/,"").replace(/\.pdf$/,"").replace(/-/g," "); }
    function fdxLoc(el){ if(!el||!el.closest){ return "In-Page CTA"; } if(el.closest("#fdx-modal")){ return "Pop-up"; } if(el.closest(".fdx-hero")){ return "Hero Section"; } if(el.tagName==="FORM"||(el.querySelector&&el.querySelector(".wpcf7"))){ return "Closing CTA"; } var sec=el.closest("section")||el.closest(".fdx-wrap"); if(sec){ var h=sec.querySelector(".fdx-eyebrow")||sec.querySelector("h2"); if(h&&h.textContent&&h.textContent.trim()){ return h.textContent.trim().slice(0,80); } } return "In-Page CTA"; }
    function fdxAttr(trigger,scopeEl){ var url=(trigger&&trigger.getAttribute("data-asset-url"))||lp.getAttribute("data-asset-url")||""; var name=(trigger&&trigger.getAttribute("data-cta-label"))||lp.getAttribute("data-cta-label")||""; return {"cta-name":name,"cta-location":fdxLoc(scopeEl||trigger),"asset":fdxAssetName(url),"submission-type":url?"Instant Download":"Manual Follow-Up"}; }
    function fdxSetHidden(form,o){ if(!form){ return; } for(var k in o){ var el=form.querySelector('[name="'+k+'"]'); if(el){ el.value=o[k]; } } }
    function fdxGA(o){ try{ var p={cta_name:o["cta-name"],cta_location:o["cta-location"],asset:o["asset"],submission_type:o["submission-type"],page_name:(document.title||""),page_url:location.pathname}; if(window.gtag){ window.gtag("event","generate_lead",p); } if(window.dataLayer){ var d={event:"generate_lead"}; for(var k in p){ d[k]=p[k]; } window.dataLayer.push(d); } }catch(e){} }
    function fdxSubmitData(e){ var f=(e&&e.target&&e.target.tagName==="FORM")?e.target:((e&&e.target&&e.target.querySelector)?e.target.querySelector("form"):null); if(f&&f.closest&&f.closest("#fdx-modal")){ var url=triggerAsset||lp.getAttribute("data-asset-url")||""; return {"cta-name":triggerLabel||lp.getAttribute("data-cta-label")||"","cta-location":fdxLoc(lastFocus)||"Pop-up","asset":fdxAssetName(url),"submission-type":url?"Instant Download":"Manual Follow-Up"}; } return fdxAttr(null,f); }

    function animateCount(el){
      var target=parseFloat(el.getAttribute('data-target'))||0, suffix=el.getAttribute('data-suffix')||'';
      if(reduce){ el.textContent=target+suffix; return; }
      var dur=1500, start=null;
      function step(ts){ if(start===null){ start=ts; } var p=Math.min((ts-start)/dur,1); var e=1-Math.pow(1-p,3); el.textContent=Math.round(e*target)+suffix; if(p<1){ requestAnimationFrame(step); } }
      requestAnimationFrame(step);
    }
    function animateBar(el){ el.style.width=(el.getAttribute('data-bar')||'0')+'%'; }
    function animateRing(el){ var pct=parseFloat(el.getAttribute('data-ring'))||0; el.style.strokeDashoffset=String(339.292*(1-pct/100)); }

    var aGroups=[
      { box:lp.querySelector('.fdx-stats'), run:function(box){ var n=box.querySelectorAll('[data-target]'),x; for(x=0;x<n.length;x++){ animateCount(n[x]); } } },
      { box:lp.querySelector('.fdx-bars'), run:function(box){ var n=box.querySelectorAll('.fdx-bar-fill[data-bar]'),x; for(x=0;x<n.length;x++){ animateBar(n[x]); } } },
      { box:lp.querySelector('.fdx-donut-wrap'), run:function(box){ var r=box.querySelector('.fdx-ring-arc[data-ring]'); if(r){ animateRing(r); } var n=box.querySelectorAll('[data-target]'),x; for(x=0;x<n.length;x++){ animateCount(n[x]); } } }
    ];
    var runGroup=function(g){ if(g.__done){ return; } g.__done=1; g.run(g.box); };
    if(!reduce){
      var gb, cc, ci, bb, bi, rr;
      for(gi=0;gi<aGroups.length;gi++){ gb=aGroups[gi].box; if(!gb){ continue; }
        cc=gb.querySelectorAll('[data-target]'); for(ci=0;ci<cc.length;ci++){ cc[ci].textContent='0'+(cc[ci].getAttribute('data-suffix')||''); }
        bb=gb.querySelectorAll('.fdx-bar-fill[data-bar]'); for(bi=0;bi<bb.length;bi++){ bb[bi].style.width='0%'; }
        rr=gb.querySelector('.fdx-ring-arc[data-ring]'); if(rr){ rr.style.strokeDashoffset='339.292'; }
      }
      if('IntersectionObserver' in window){
        var aio=new IntersectionObserver(function(es){ es.forEach(function(en){ if(en.isIntersecting){ var q; for(q=0;q<aGroups.length;q++){ if(aGroups[q].box===en.target){ runGroup(aGroups[q]); aio.unobserve(en.target); } } } }); },{threshold:0.25});
        for(gi=0;gi<aGroups.length;gi++){ if(aGroups[gi].box){ aio.observe(aGroups[gi].box); } }
      } else {
        for(gi=0;gi<aGroups.length;gi++){ if(aGroups[gi].box){ runGroup(aGroups[gi]); } }
      }
    }

    // set CF7 submit-button label (no backend edit needed). Works for input[type=submit] and <button>.
    function setBtn(scope,label){ if(!scope||!label){ return; } var b=scope.querySelectorAll('.wpcf7-submit'),i; for(i=0;i<b.length;i++){ if(b[i].tagName==='INPUT'){ b[i].value=label; } else { b[i].textContent=label; } } }
    var pageLabel=lp.getAttribute('data-cta-label'); if(pageLabel){ setBtn(lp,pageLabel); }

    if(modal){
      var openModal=function(bn){
        triggerAsset=bn.getAttribute('data-asset-url')||''; // per-trigger asset wins (resource cards)
        triggerLabel=bn.getAttribute('data-cta-label')||'';
        var t=document.getElementById('fdx-modal-title'); if(t){ t.textContent=bn.getAttribute('data-title')||'Request the resource'; }
        var s=document.getElementById('fdx-modal-sub'); if(s){ s.textContent=bn.getAttribute('data-sub')||'Three fields and the team will be in touch.'; }
        var bl=bn.getAttribute('data-cta-label'); if(bl){ setBtn(modal,bl); } else if(pageLabel){ setBtn(modal,pageLabel); }
        if(modal.querySelector("form")){ fdxSetHidden(modal.querySelector("form"),fdxAttr(bn,bn)); }
        modal.hidden=false; document.body.style.overflow='hidden';
        var inp=modal.querySelector('input'); if(inp){ inp.focus(); }
      };
      var closeModal=function(){ modal.hidden=true; document.body.style.overflow=''; triggerAsset=''; triggerLabel=''; if(lastFocus){ lastFocus.focus(); } };
      var dls=lp.querySelectorAll('.fdx-dl'),di;
      for(di=0;di<dls.length;di++){ (function(bn){ bn.addEventListener('click',function(){ lastFocus=bn; openModal(bn); }); })(dls[di]); }
      var closers=modal.querySelectorAll('[data-close]'),ce;
      for(ce=0;ce<closers.length;ce++){ closers[ce].addEventListener('click',closeModal); }
      document.addEventListener('keydown',function(e){ if((e.key==='Escape'||e.keyCode===27)&&!modal.hidden){ closeModal(); } });
    }

    // Contact Form 7 success:
    //  - INSTANT pages: page (or trigger) carries an asset URL -> start the file download, then go to the
    //    thank-you page (which also offers a manual link as a popup-blocker fallback).
    //  - MANUAL pages: no asset URL -> straight to the thank-you page ("a senior member of the team will be in touch").
    (function(){ var fs=lp.querySelectorAll("form"),fi; for(fi=0;fi<fs.length;fi++){ if(fs[fi].closest("#fdx-modal")){ continue; } fdxSetHidden(fs[fi],fdxAttr(null,fs[fi])); } })();
    function pageAsset(){ return triggerAsset || lp.getAttribute('data-asset-url') || ''; }
    function fdxOnSent(e){
      fdxGA(fdxSubmitData(e));
      var url=pageAsset();
      if(url){
        // 1:1 MEETINGS PILOT: auto-download the guide, show a brief confirmation + manual fallback,
        // then send the user to the thank-you page. The delay lets the download start before navigating
        // (a started download keeps going across the redirect); the link covers any blocked auto-download.
        try{ var a=document.createElement('a'); a.href=url; a.setAttribute('download',''); a.rel='noopener';
             document.body.appendChild(a); a.click(); a.remove(); }catch(e){}
        var ro=document.querySelectorAll('.wpcf7-response-output'),i;
        for(i=0;i<ro.length;i++){
          ro[i].innerHTML='<strong>Your download has started.</strong> If it does not begin, '
            +'<a href="'+url+'" download rel="noopener" style="color:#00808A;font-weight:800;text-decoration:underline">click here</a>.';
        }
        setTimeout(function(){ window.location.href='/thank-you/'; }, 2000);
      } else {
        window.location.href='/thank-you/';
      }
    }
    document.addEventListener('wpcf7mailsent',fdxOnSent);
    if(window.jQuery){ window.jQuery(document).on('wpcf7mailsent',fdxOnSent); }
  }
  if(document.readyState==='loading'){ document.addEventListener('DOMContentLoaded',init); } else { init(); }
})();