LLDPaymentGatewayforWordPress/woocommerce-lld-gateway at main · liberland/LLDPaymentGatewayforWordPress · GitHub

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// assets/woocommerce-lld-gateway.js
(function () {
  function renderFromData() {
    try {
      var container = document.getElementById('lld-payment-instructions') || document.getElementById('lld-qrcode');
      if (!container) return;

      // support both data-gateway (new) and data-url (older)
      var gateway = container.getAttribute('data-gateway') || container.getAttribute('data-url') || container.dataset.gateway || container.dataset.url;
      if (!gateway) {
        container.innerText = (window.lld_payment_vars && lld_payment_vars.error_text) ? lld_payment_vars.error_text : 'Payment link not available.';
        return;
      }

      // Clear
      container.innerHTML = '';

      // Info label
      var label = document.createElement('p');
      label.innerText = (window.lld_payment_vars && lld_payment_vars.scan_text) ? lld_payment_vars.scan_text : 'Scan to pay';
      container.appendChild(label);

      // QR container
      var qrDiv = document.createElement('div');
      container.appendChild(qrDiv);

      // Generate QR
      if (typeof QRCode === 'function') {
        try {
          new QRCode(qrDiv, {
            text: gateway,
            width: 180,
            height: 180,
            colorDark: '#000000',
            colorLight: '#ffffff',
            correctLevel: QRCode.CorrectLevel.H
          });
        } catch (e) {
          console.error('LLD QR error', e);
          container.appendChild(document.createTextNode((window.lld_payment_vars && lld_payment_vars.error_text) ? lld_payment_vars.error_text : 'QR generation failed.'));
        }
      } else {
        // attempt to load library then render
        var script = document.createElement('script');
        script.src = 'https://cdnjs.cloudflare.com/ajax/libs/qrcodejs/1.0.0/qrcode.min.js';
        script.onload = function () {
          try {
            new QRCode(qrDiv, { text: gateway, width: 180, height: 180 });
          } catch (e) { console.error(e); }
        };
        document.body.appendChild(script);
      }

      // Gateway link
      var link = document.createElement('a');
      link.href = gateway;
      link.target = '_blank';
      link.innerText = (window.lld_payment_vars && lld_payment_vars.link_text) ? lld_payment_vars.link_text : 'Open gateway';
      link.style.display = 'block';
      link.style.marginTop = '10px';
      container.appendChild(link);

      // Copyable fallback (try to parse address & price)
      try {
        var u = new URL(gateway);
        var p = new URLSearchParams(u.search);
        var toId = p.get('toId') || p.get('address');
        var price = p.get('price') || p.get('amount');
        if (toId) {
          var fallback = document.createElement('div');
          fallback.style.marginTop = '8px';
          fallback.innerHTML = '<strong>Address:</strong> <code>' + toId + '</code><br><strong>Price (LLD):</strong> ' + (price || '') ;
          container.appendChild(fallback);
        }
      } catch (err) {
        // ignore parse errors
      }

    } catch (err) {
      console.error('LLD render error', err);
    }
  }

  document.addEventListener('DOMContentLoaded', renderFromData);
  document.addEventListener('updated_checkout', renderFromData);
  setTimeout(renderFromData, 600);
})();