// Personal invite page (/join/<id>): the full bridge-page story, personalized
// to one sponsor. Pulls the sponsor's live position via /api/public/member,
// pins their ID on every CTA, and submits new IDs with sponsorId locked to
// the page. Prospects who land on a bad/unregistered ID get routed to /start
// (the team rotation) instead of a dead end.
(function(){
  const esc=s=>String(s??'').replace(/[&<>'"]/g,c=>({'&':'&amp;','<':'&lt;','>':'&gt;',"'":'&#39;','"':'&quot;'}[c]));
  const fmt=n=>Number(n||0).toLocaleString(undefined,{maximumFractionDigits:2});
  const date=ts=>ts?new Date(ts*1000).toLocaleDateString(undefined,{year:'numeric',month:'short',day:'numeric'}):'—';

  function pathId(){const m=location.pathname.match(/^\/join\/(\d+)$/);return m?m[1]:''}
  const id=pathId();

  function setIds(idStr){
    document.getElementById('invId').textContent='#'+idStr;
    document.getElementById('invIdJoin').textContent='#'+idStr;
    document.getElementById('invIdBtn').textContent='#'+idStr;
    document.querySelectorAll('.inv-id-inline').forEach(el=>el.textContent='#'+idStr);
  }

  function fallbackToRotation(msg){
    const facts=document.getElementById('invFacts');
    facts.innerHTML=`<div class="empty" style="grid-column:1/-1">${esc(msg)} <a href="/start" style="color:var(--teal)">Open the team rotation instead →</a></div>`;
    const jb=document.getElementById('joinBtn');jb.textContent='Open the Team Sponsor Page →';jb.href='/start';jb.removeAttribute('target');
  }

  async function load(){
    if(!id){fallbackToRotation('This invite link is missing its member ID.');return}
    setIds(id);
    try{
      const r=await fetch('/api/public/member?id='+id);
      const d=await r.json();
      if(!r.ok||!d.registered)throw new Error('This invite ID isn’t registered on the smart contract.');
      render(d);
    }catch(x){fallbackToRotation(x.message)}
  }

  function render(d){
    const q=document.getElementById('invQualified');
    q.outerHTML=d.directCount>=2
      ?'<span id="invQualified" class="q-badge q-yes">★ Qualified</span>'
      :`<span id="invQualified" class="q-badge q-no">Building — ${d.directCount}/2 directs</span>`;
    document.getElementById('invFacts').innerHTML=
      `<div class="fact"><small>Level</small><strong>${esc(d.levelName)}</strong></div>`+
      `<div class="fact"><small>Total received</small><strong style="color:var(--ok)">${fmt(d.totalEarnedPol)} POL</strong></div>`+
      `<div class="fact"><small>Team below them</small><strong>${d.subtree?`${d.subtree.downCount} member${d.subtree.downCount===1?'':'s'}`:'—'}</strong></div>`+
      `<div class="fact"><small>Directs</small><strong>${d.directCount}/2</strong></div>`+
      `<div class="fact"><small>Tier</small><strong>${esc(d.tierName)}</strong></div>`+
      `<div class="fact"><small>Member since</small><strong>${date(d.joinedAt)}</strong></div>`;
    // Qualified sponsor: still a valid join (doctrine: late signups pay them
    // and spill down), but surface the team wave so nobody's surprised.
    const note=document.getElementById('invQualNote');
    if(d.directCount>=2&&d.nextInLine){
      note.innerHTML=`<div class="callout" style="margin-top:14px">This position is already <strong>qualified</strong> — joining here still works (you'll be placed in their team leg and your entry pays them directly). The team's current focus is helping <a href="/join/${d.nextInLine.id}" style="color:var(--teal)">Member #${d.nextInLine.id}</a> get their 2 — either way, you're on the same team.</div>`;
    }
    const jb=document.getElementById('joinBtn');
    if(d.referralUrl)jb.href=d.referralUrl;
    const cp=document.getElementById('copySponsor');
    cp.addEventListener('click',async()=>{try{await navigator.clipboard.writeText(String(d.id));cp.textContent='Copied ✓';setTimeout(()=>cp.textContent='Copy Sponsor ID',1400)}catch(e){}});
  }

  document.getElementById('joinForm').addEventListener('submit',async e=>{
    e.preventDefault();
    const form=e.currentTarget,msg=document.getElementById('joinMsg');
    const newId=form.elements.newId.value.trim(),memberName=form.elements.memberName.value.trim();
    if(!/^\d{1,10}$/.test(newId)){msg.style.color='var(--danger)';msg.textContent='Numbers only — the ID shown by the RM Circle dApp.';return}
    if(!memberName){msg.style.color='var(--danger)';msg.textContent='Add your name or Telegram handle.';return}
    msg.style.color='var(--muted)';msg.textContent='Verifying on the blockchain…';
    try{
      const r=await fetch('/api/public/submit-id',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({newId,memberName,sponsorId:id||'?',source:'invite-'+(id||'?'),clickid:window.ctbGetClickId?window.ctbGetClickId():''})});
      const d=await r.json();
      if(!r.ok)throw new Error(d.error||'Submission failed');
      form.classList.add('hidden');
      msg.style.color='var(--ok)';
      const dash=`<br><a href="/my/${newId}" style="color:var(--gold)">Open your own dashboard →</a>`;
      if(d.duplicate)msg.innerHTML=`✓ ID <strong>${esc(newId)}</strong> was already submitted — you're on the list.${dash}`;
      else if(d.onchain&&d.onchain.registered)msg.innerHTML=`✓ Verified on the blockchain! ID <strong>${esc(newId)}</strong> is registered under sponsor <strong>#${d.onchain.referrerId}</strong> (${esc(d.onchain.tier)}). The team has been notified — welcome aboard.${dash}`;
      else if(d.path==='notfound'){msg.style.color='var(--danger)';msg.innerHTML=`⚠ ID <strong>${esc(newId)}</strong> isn't on the smart contract yet — double-check the number from the RM Circle dApp. Your submission is saved and the team will verify it manually.`;}
      else msg.innerHTML=`✓ Got it — submitted. The team will verify your placement.${dash}`;
    }catch(x){msg.style.color='var(--danger)';msg.textContent=x.message}
  });

  // matrix dots (same as bridge)
  for(const pid of ['p8','p16']){
    const node=document.getElementById(pid);if(!node)continue;
    const count=pid==='p8'?8:16;for(let i=0;i<count;i++){const s=document.createElement('span');s.className='person';node.appendChild(s)}
  }
  load();
})();