// Telegram Mini App entry: verify initData server-side, then land the linked
// member on THEIR dashboard with a minted session — zero login. Unlinked
// users get the one-time wallet-link instructions instead.
(function () {
  'use strict';
  var tg = window.Telegram && window.Telegram.WebApp;
  function show(id) {
    ['st-loading', 'st-unlinked', 'st-error', 'st-notg'].forEach(function (x) {
      var el = document.getElementById(x); if (el) el.style.display = x === id ? '' : 'none';
    });
  }
  function on(id, fn) { var el = document.getElementById(id); if (el) el.addEventListener('click', fn); }
  on('btn-open-site', function () {
    var url = location.origin + '/my';
    if (tg && tg.openLink) tg.openLink(url); else location.href = url;
  });
  on('btn-join', function () { location.href = '/join-now?src=miniapp'; });
  on('btn-browse', function () { location.href = '/start'; });
  on('btn-retry', function () { location.reload(); });

  if (!tg || !tg.initData) { show('st-notg'); return; }
  // Flag the webview session so tg-app.js activates on every page after this one.
  try { sessionStorage.setItem('rmcTg', '1'); } catch (e) {}
  tg.ready();
  try { tg.expand(); } catch (e) {}
  try { tg.setHeaderColor('#071421'); tg.setBackgroundColor('#071421'); } catch (e) {}

  // Invite attribution: t.me/<bot>/<short>?startapp=<sponsorId>[_<angle>]
  // routes a prospect to the sponsor's personalized squeeze page. The webview
  // session keeps ?src=miniapp so the join records where it came from.
  var ref = null, angle = null;
  try {
    var sp = (tg.initDataUnsafe && tg.initDataUnsafe.start_param) || '';
    var m = /^(\d{1,15})(?:[_-]([a-z]{2,12}))?$/.exec(sp);
    if (m) { ref = m[1]; angle = m[2] || null; }
  } catch (e) {}

  fetch('/api/public/tg-webapp-auth', {
    method: 'POST', headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ initData: tg.initData })
  }).then(function (r) { return r.json(); }).then(function (d) {
    if (d && d.ok && d.linked) {
      // A member tapping their OWN invite link wants to preview what their
      // prospects see — show the squeeze page (tagged so stats stay clean).
      // Tapping a teammate's link still lands on their own dashboard.
      if (ref && String(d.id) === ref) { location.replace('/join/' + ref + '?src=miniapp-preview' + (angle ? '&v=' + angle : '')); return; }
      location.replace('/my/' + d.id); return;
    }
    if (d && d.ok) {
      if (ref) { location.replace('/join/' + ref + '?src=miniapp' + (angle ? '&v=' + angle : '')); return; }
      show('st-unlinked'); return;
    }
    var el = document.getElementById('err-detail');
    if (el && d && d.error) el.textContent = d.error;
    show('st-error');
  }).catch(function () { show('st-error'); });
})();