<script>
(function() {

  // Detect the traffic source for this visit
  function getOrigin() {
    var p = new URLSearchParams(window.location.search);
    var r = document.referrer.toLowerCase();

    if (p.has('gclid') || p.has('gbraid')) return 'google_ads';
    if (p.has('fbclid'))                    return 'meta_ads';
    if (p.has('utm_source'))               return 'utm_' + p.get('utm_source').toLowerCase();
    if (r.includes('google.com'))           return 'organic_google';
    if (r.includes('linkedin.com'))         return 'organic_linkedin';
    if (r.includes('reddit.com'))           return 'organic_reddit';
    return 'direct_or_unknown';
  }

  // Save once on first visit — never overwrite
  if (!localStorage.getItem('source_first_visit')) {
    localStorage.setItem('source_first_visit', getOrigin());
  }

  var firstSource = localStorage.getItem('source_first_visit');

  // Append source_first_visit to every link pointing to the app
  window.addEventListener('DOMContentLoaded', function() {
    document.querySelectorAll('a[href*="universal.mybmr.com"]').forEach(function(link) {
      try {
        var url = new URL(link.href);
        url.searchParams.set('source_first_visit', firstSource);
        link.href = url.toString();
      } catch(e) {}
    });
  });

})();
</script>

<script>
window.dataLayer = window.dataLayer || [];

var p = new URLSearchParams(window.location.search);
var firstSource = p.get('source_first_visit') || 'direct_or_unknown';

window.dataLayer.push({
  'event':              'sign_up',
  'source_first_visit': firstSource,       // from URL param (passed from universell.us)
  'account_id':         '{{ACCOUNT_ID}}',  // CRM Company/Account ID
  'user_id':            '{{USER_ID}}',     // CRM User/Person ID
  'plan_tier':          '{{PLAN_TIER}}',   // e.g. "free_account", "pro_monthly"
  'product':            '{{PRODUCT}}'      // which product they signed up for — e.g. "esign", "crm"
});
</script>

<script>
window.dataLayer = window.dataLayer || [];

window.dataLayer.push({
  'event':              'login',
  'account_id':         '{{ACCOUNT_ID}}',          // from session / DB
  'user_id':            '{{USER_ID}}',             // from session / DB
  'plan_tier':          '{{PLAN_TIER}}',           // from DB
  'product':            '{{PRODUCT}}',             // which product they logged into
  'source_first_visit': '{{SOURCE_FIRST_VISIT}}'   // optional — from DB (stored at signup), for cohort analysis
});
</script>

<script>
window.dataLayer = window.dataLayer || [];

var p = new URLSearchParams(window.location.search);
// Try URL param first (cross-domain), fall back to localStorage
var firstSource = p.get('source_first_visit')
  || localStorage.getItem('source_first_visit')
  || 'direct_or_unknown';

window.dataLayer.push({
  'event':              'demo_request',
  'source_first_visit': firstSource
  // no account_id or user_id — prospect hasn't signed up yet
});
</script>

<script>
window.dataLayer = window.dataLayer || [];

// Clear any previous ecommerce object so values don't bleed between pushes
window.dataLayer.push({ 'ecommerce': null });

window.dataLayer.push({
  'event':              'purchase',
  'ecommerce': {
    'transaction_id':   '{{ORDER_ID}}',      // unique order/subscription ID — REQUIRED, dedupes conversions
    'value':            {{ORDER_VALUE}},       // number only, no symbol — e.g. 490.00
    'currency':         '{{CURRENCY}}',        // ISO 4217 — e.g. "USD"
    'tax':              {{TAX}},               // optional
    'coupon':           '{{COUPON}}',          // optional promo code
    'items': [{
      'item_id':        '{{PLAN_CODE}}',       // SKU / plan code
      'item_name':      '{{PLAN_NAME}}',       // e.g. "Pro Monthly"
      'item_category':  '{{PRODUCT}}',         // optional — product line, e.g. "esign", "crm"
      'price':          {{PLAN_PRICE}},        // per-unit price
      'quantity':       1
    }]
  },

  // same identity + attribution keys as sign_up / login (custom — optional but recommended)
  'account_id':         '{{ACCOUNT_ID}}',
  'user_id':            '{{USER_ID}}',
  'plan_tier':          '{{PLAN_TIER}}',
  'product':            '{{PRODUCT}}',
  'source_first_visit': '{{SOURCE_FIRST_VISIT}}',  // read from DB — source stored at signup

  // OPTIONAL — enhanced conversions; the SAME fields feed both Google and Meta matching (hashed)
  'user_data': {
    'email':            '{{USER_EMAIL}}',      // recommended — strongest match key
    'phone_number':     '{{USER_PHONE}}'      // optional — include only if you collect a verified phone
  }
});
</script>

'account_id':         '<?= htmlspecialchars($user->company_id) ?>',
'user_id':            '<?= htmlspecialchars($user->id) ?>',
'plan_tier':          '<?= htmlspecialchars($user->plan) ?>',
'product':            '<?= htmlspecialchars($user->product) ?>',
'source_first_visit': '<?= htmlspecialchars($user->source_first_visit) ?>'