// Printable half-sheet handouts with the member's QR + invite link.
// The ref token (username, share code or member #) comes from ?ref=, then
// localStorage (set by Promo tools), then the signed-in account.
(function () {
  'use strict';
  var $ = function (id) { return document.getElementById(id); };
  var ORIGIN = location.origin;
  var DESIGNS = [
    { angle: 'instant', tag: 'Polygon · same-transaction payouts', h: 'Advertise &amp; earn.<br>Paid on-chain, <em>instantly.</em>',
      lead: 'Every ad package splits to real wallets the second it sells. No pending. No withdraw button.',
      bullets: ['Free to join with just an email', 'Ad packages from $5, seven ad formats', 'Every payout public on the blockchain'] },
    { angle: 'adspend', tag: 'For marketers who buy traffic', h: 'You were buying <em>ads anyway.</em>',
      lead: 'Here the ad spend in your line pays you, in the same transaction, on a public ledger.',
      bullets: ['Banners, text, login, solo, video, featured, visits', 'Dwell-timed views: real people, not scripts', '50 / 20 / 10 sponsor split, written in code'] },
    { angle: 'free', tag: 'Costs nothing to try', h: 'Watch first.<br><em>Spend never.</em>',
      lead: 'Join free, view a few ads, earn credits, and run your first campaign for zero dollars.',
      bullets: ['Email sign-in, no password, no wallet needed', 'Earn credits for your attention every day', 'Upgrade only if you want more reach'] }
  ];
  function getRef() {
    var q = new URLSearchParams(location.search).get('ref');
    if (q && /^[A-Za-z0-9_]{1,20}$/.test(q)) return q;
    try { var s = localStorage.getItem('iap.ref'); if (s && /^[A-Za-z0-9_]{1,20}$/.test(s)) return s; } catch (e) {}
    return '';
  }
  function qrSvg(url) {
    try { var q = qrcode(0, 'M'); q.addData(url); q.make(); return q.createSvgTag({ cellSize: 4, margin: 2, scalable: true }); } catch (e) { return ''; }
  }
  function el(tag, cls, html) { var d = document.createElement(tag); if (cls) d.className = cls; if (html != null) d.innerHTML = html; return d; }
  function card(d, url, shortUrl) {
    var hs = el('div', 'hs');
    hs.appendChild(el('div', 'lines'));
    var inner = el('div', 'in');
    var logo = el('img', 'logo'); logo.src = '/logo.png'; logo.alt = 'InstantAdPay'; inner.appendChild(logo);
    inner.appendChild(el('span', 'tag', d.tag));
    inner.appendChild(el('h2', null, d.h));
    inner.appendChild(el('p', 'lead', d.lead));
    var ul = el('ul'); d.bullets.forEach(function (b) { ul.appendChild(el('li', null, b)); }); inner.appendChild(ul);
    inner.appendChild(el('div', 'foot', 'Scan the code or visit <b>' + shortUrl + '</b>'));
    hs.appendChild(inner);
    var ov = el('div', 'hs-qrov');
    ov.appendChild(el('div', 'q', url ? qrSvg(url) : '<div class="qph"></div>'));
    ov.appendChild(el('div', 'scan', 'SCAN ME'));
    ov.appendChild(el('div', 'lnk', shortUrl));
    hs.appendChild(ov);
    hs.appendChild(el('div', 'hs-disc', 'Advertising, not investing. No income is guaranteed; results depend on your effort. Crypto carries risk of loss.'));
    return hs;
  }
  function build(ref) {
    var wrap = $('halfsheets'); wrap.innerHTML = '';
    DESIGNS.forEach(function (d) {
      var url = ref ? ORIGIN + '/join/' + ref + '?v=' + d.angle : '';
      var shortUrl = ref ? 'instantadpay.com/join/' + ref : 'instantadpay.com';
      var page = el('div', 'hs-page');
      var pr = el('button', 'btn small hs-print', 'Print this one'); pr.type = 'button';
      pr.addEventListener('click', function () {
        document.body.classList.add('print-one'); page.classList.add('printing');
        window.print();
        setTimeout(function () { document.body.classList.remove('print-one'); page.classList.remove('printing'); }, 400);
      });
      page.appendChild(pr);
      page.appendChild(card(d, url, shortUrl));
      page.appendChild(el('div', 'hs-cut', '✂ cut here'));
      var copy = card(d, url, shortUrl); copy.classList.add('hs-copy'); page.appendChild(copy);
      wrap.appendChild(page);
    });
  }
  var input = $('flRef');
  var ref = getRef();
  if (ref) input.value = ref;
  build(ref);
  input.addEventListener('input', function () {
    var v = input.value.trim();
    if (!v || /^[A-Za-z0-9_]{1,20}$/.test(v)) { build(v); try { if (v) localStorage.setItem('iap.ref', v); } catch (e) {} }
  });
  if (!ref) { // signed-in member without a stored ref: ask the site
    fetch('/api/me').then(function (r) { return r.json(); }).then(function (me) {
      var t = me && me.signedIn && (me.username || me.refCode || me.memberId);
      if (t && !input.value) { input.value = String(t); build(String(t)); }
    }).catch(function () {});
  }
})();