const loginView=document.getElementById('loginView'),adminView=document.getElementById('adminView'),rows=document.getElementById('sponsorRows'),toast=document.getElementById('toast');let state=null;
const LEVELS=['Scintilla','Ascensus','Fabrica','Culmen','Apex','Fastigium','Vertex','Corona'];
function levelSelect(s){const opts=(LEVELS.includes(s.level)?LEVELS:[s.level,...LEVELS]).map(l=>`<option${l===s.level?' selected':''}>${esc(l)}</option>`).join('');return `<select class="select select-inline" data-action="level" data-id="${esc(s.id)}">${opts}</select>`}
function showToast(msg){toast.textContent=msg;toast.classList.add('show');setTimeout(()=>toast.classList.remove('show'),1800)}
async function api(url,opts={}){const r=await fetch(url,{headers:{'Content-Type':'application/json',...(opts.headers||{})},...opts});const d=await r.json().catch(()=>({}));if(!r.ok)throw new Error(d.error||'Request failed');return d}
async function loadState(){try{state=await api('/api/admin/state');loginView.classList.add('hidden');adminView.classList.remove('hidden');render()}catch(e){loginView.classList.remove('hidden');adminView.classList.add('hidden')}}
function statusClass(s){return `status status-${s}`}
function pct(n,d){return d?`${Math.round((n/d)*100)}%`:'—'}
function renderAnalytics(){
  const src=(state.analytics&&state.analytics.sources)||{};
  const tot={bridge:0,start:0,click:0,training:0};
  const list=Object.entries(src).map(([name,r])=>{tot.bridge+=r.bridge||0;tot.start+=r.start||0;tot.click+=r.click||0;tot.training+=r.training||0;return{name,bridge:r.bridge||0,start:r.start||0,click:r.click||0,training:r.training||0}})
    .sort((a,b)=>b.click-a.click||b.start-a.start||b.bridge-a.bridge);
  document.getElementById('funnelStats').innerHTML=
    `<div class="fact"><small>Bridge views</small><strong>${tot.bridge}</strong></div>`+
    `<div class="fact"><small>Start views</small><strong>${tot.start}</strong></div>`+
    `<div class="fact"><small>Join clicks</small><strong>${tot.click}</strong></div>`+
    `<div class="fact"><small>Bridge → Start</small><strong>${pct(tot.start,tot.bridge)}</strong></div>`+
    `<div class="fact"><small>Start → Join</small><strong>${pct(tot.click,tot.start)}</strong></div>`;
  document.getElementById('trafficRows').innerHTML=list.map(r=>`<tr><td><strong>${esc(r.name)}</strong></td><td>${r.bridge}</td><td>${r.start}</td><td>${r.training}</td><td>${r.click}</td><td>${pct(r.click,r.start)}</td></tr>`).join('')||'<tr><td colspan="6" class="empty">No traffic recorded yet.</td></tr>';
}
function esc(s){return String(s??'').replace(/[&<>'"]/g,c=>({'&':'&amp;','<':'&lt;','>':'&gt;',"'":'&#39;','"':'&quot;'}[c]))}
function render(){
  const sponsors=[...state.sponsors].sort((a,b)=>a.sortOrder-b.sortOrder);rows.innerHTML=sponsors.map((s,i)=>`<tr><td>${i+1}</td><td><strong>${esc(s.name)}</strong><div class="micro" style="margin:2px 0 0">ID ${esc(s.id)}</div></td><td>${esc(s.parentId||'—')}</td><td><strong>${s.directs}/2</strong></td><td>${levelSelect(s)}</td><td><span class="${statusClass(s.status)}">${esc(s.status)}</span></td><td>${s.clicks||0}</td><td><div class="actions">${s.status!=='qualified'?`<button class="btn btn-secondary btn-sm" data-action="inc" data-id="${esc(s.id)}">+1 Direct</button><button class="btn btn-teal btn-sm" data-action="qualify" data-id="${esc(s.id)}">Qualified</button>`:`<button class="btn btn-secondary btn-sm" data-action="reset" data-id="${esc(s.id)}">Reset</button>`}${s.status==='waiting'?`<button class="btn btn-secondary btn-sm" data-action="activate" data-id="${esc(s.id)}">Make Active</button>`:''}<button class="btn btn-secondary btn-sm" data-action="up" data-id="${esc(s.id)}">↑</button><button class="btn btn-secondary btn-sm" data-action="down" data-id="${esc(s.id)}">↓</button><button class="btn btn-danger btn-sm" data-action="delete" data-id="${esc(s.id)}">×</button></div></td></tr>`).join('')||'<tr><td colspan="8" class="empty">No sponsors in the queue.</td></tr>';
  renderAnalytics();
  const f=document.getElementById('configForm'),c=state.config;for(const k of ['siteName','programName','bridgeHeadline','bridgeSubheadline','premiumEntryPol','dappReferralBaseUrl','telegramUrl','supportLabel'])if(f.elements[k])f.elements[k].value=c[k]??'';f.elements.showSponsorName.checked=!!c.showSponsorName;f.elements.showQueueProgress.checked=!!c.showQueueProgress;
}
document.getElementById('loginForm').addEventListener('submit',async e=>{e.preventDefault();const err=document.getElementById('loginError');err.textContent='';try{await api('/api/admin/login',{method:'POST',body:JSON.stringify({password:document.getElementById('password').value})});document.getElementById('password').value='';await loadState()}catch(x){err.textContent=x.message}});
document.getElementById('logoutBtn').addEventListener('click',async()=>{await api('/api/admin/logout',{method:'POST'});location.reload()});
document.getElementById('addSponsorForm').addEventListener('submit',async e=>{e.preventDefault();const form=e.currentTarget,obj=Object.fromEntries(new FormData(form));try{const d=await api('/api/admin/sponsors',{method:'POST',body:JSON.stringify(obj)});state.sponsors=d.sponsors;form.reset();render();showToast('Sponsor added')}catch(x){showToast(x.message)}});
document.getElementById('configForm').addEventListener('submit',async e=>{e.preventDefault();const f=e.currentTarget,obj=Object.fromEntries(new FormData(f));obj.showSponsorName=f.elements.showSponsorName.checked;obj.showQueueProgress=f.elements.showQueueProgress.checked;obj.premiumEntryPol=Number(obj.premiumEntryPol);try{const d=await api('/api/admin/config',{method:'PATCH',body:JSON.stringify(obj)});state.config=d.config;render();showToast('Settings saved')}catch(x){showToast(x.message)}});
rows.addEventListener('click',async e=>{const b=e.target.closest('button[data-action]');if(!b)return;const id=b.dataset.id,a=b.dataset.action;try{let d;if(a==='delete'){if(!confirm(`Delete sponsor ID ${id}?`))return;d=await api(`/api/admin/sponsors/${id}`,{method:'DELETE'})}else if(a==='inc')d=await api(`/api/admin/sponsors/${id}/increment`,{method:'POST'});else if(a==='qualify')d=await api(`/api/admin/sponsors/${id}/qualify`,{method:'POST'});else if(a==='activate')d=await api(`/api/admin/sponsors/${id}/activate`,{method:'POST'});else if(a==='reset')d=await api(`/api/admin/sponsors/${id}/reset`,{method:'POST'});else if(a==='up'||a==='down')d=await api(`/api/admin/sponsors/${id}/move`,{method:'POST',body:JSON.stringify({direction:a})});if(d&&d.sponsors){state.sponsors=d.sponsors;render();showToast('Updated')}}catch(x){showToast(x.message)}});
rows.addEventListener('change',async e=>{const sel=e.target.closest('select[data-action="level"]');if(!sel)return;try{const d=await api(`/api/admin/sponsors/${sel.dataset.id}`,{method:'PATCH',body:JSON.stringify({level:sel.value})});state.sponsors=d.sponsors;render();showToast('Level updated')}catch(x){showToast(x.message);render()}});
loadState();