lightning-starter/index.html at master · lacrypta/lightning-starter · GitHub

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<!DOCTYPE html>
<html lang="es">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>⚡ Lightning Starter Kit</title>
  <style>
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: system-ui, -apple-system, sans-serif;
      background: linear-gradient(180deg, #0a0f1a 0%, #1a1a2e 100%);
      min-height: 100vh;
      color: #fff;
      padding: 40px 20px;
    }
    .container { max-width: 800px; margin: 0 auto; }
    h1 {
      font-size: 2.5rem;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 15px;
    }
    h1 span { color: #ffc800; }
    .subtitle { color: rgba(255,255,255,0.6); margin-bottom: 40px; }

    .card {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 16px;
      padding: 30px;
      margin-bottom: 20px;
    }
    .card h2 {
      font-size: 1.3rem;
      margin-bottom: 15px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .card p { color: rgba(255,255,255,0.7); margin-bottom: 20px; line-height: 1.6; }

    input, textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid rgba(255,255,255,0.2);
      border-radius: 8px;
      background: rgba(255,255,255,0.05);
      color: #fff;
      font-size: 1rem;
      margin-bottom: 15px;
    }
    input:focus, textarea:focus {
      outline: none;
      border-color: #00ff9d;
    }
    input::placeholder { color: rgba(255,255,255,0.4); }

    button {
      padding: 12px 24px;
      background: linear-gradient(135deg, #00ff9d 0%, #00cc7d 100%);
      color: #000;
      font-weight: 600;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      font-size: 1rem;
      transition: transform 0.2s;
    }
    button:hover { transform: scale(1.02); }
    button:disabled {
      opacity: 0.5;
      cursor: not-allowed;
      transform: none;
    }

    .output {
      background: rgba(0,0,0,0.3);
      border-radius: 8px;
      padding: 15px;
      margin-top: 15px;
      font-family: monospace;
      font-size: 0.9rem;
      word-break: break-all;
      display: none;
    }
    .output.show { display: block; }
    .output.success { border-left: 3px solid #00ff9d; }
    .output.error { border-left: 3px solid #ff6b6b; }

    .status {
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 0.85rem;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 15px;
    }
    .status.connected { background: rgba(0,255,157,0.15); color: #00ff9d; }
    .status.disconnected { background: rgba(255,107,107,0.15); color: #ff6b6b; }

    .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    @media (max-width: 700px) { .grid { grid-template-columns: 1fr; } }

    .footer {
      margin-top: 60px;
      text-align: center;
      color: rgba(255,255,255,0.4);
      font-size: 0.9rem;
    }
    .footer a { color: #ffc800; text-decoration: none; }
  </style>
</head>
<body>
  <div class="container">
    <h1>⚡ <span>Lightning</span> Starter Kit</h1>
    <p class="subtitle">Demo interactivo para Lightning Hackathons 2026</p>

    <!-- WebLN Connection -->
    <div class="card">
      <h2>🔌 Conectar Wallet (WebLN)</h2>
      <p>Conectá tu wallet del navegador (Alby, etc.) para interactuar con Lightning.</p>

      <div id="walletStatus" class="status disconnected">
        ⚪ No conectado
      </div>

      <button id="connectBtn" onclick="connectWallet()">Conectar Wallet</button>
      <div id="walletOutput" class="output"></div>
    </div>

    <div class="grid">
      <!-- Lightning Address -->
      <div class="card">
        <h2>📬 Lightning Address</h2>
        <p>Resolvé una Lightning Address y generá un invoice.</p>

        <input type="text" id="lnAddress" placeholder="usuario@dominio.com" value="hello@getalby.com">
        <input type="number" id="lnAmount" placeholder="Cantidad en sats" value="21">
        <button onclick="resolveLightningAddress()">Generar Invoice</button>
        <div id="lnAddressOutput" class="output"></div>
      </div>

      <!-- Create Invoice -->
      <div class="card">
        <h2>📝 Crear Invoice</h2>
        <p>Generá un invoice para recibir pagos.</p>

        <input type="number" id="invoiceAmount" placeholder="Cantidad en sats" value="100">
        <input type="text" id="invoiceMemo" placeholder="Descripción" value="Test desde Lightning Starter">
        <button id="createInvoiceBtn" onclick="createInvoice()" disabled>Crear Invoice</button>
        <div id="invoiceOutput" class="output"></div>
      </div>
    </div>

    <!-- Pay Invoice -->
    <div class="card">
      <h2>💸 Pagar Invoice</h2>
      <p>Pagá un invoice bolt11.</p>

      <textarea id="payInvoice" rows="3" placeholder="lnbc..."></textarea>
      <button id="payBtn" onclick="payInvoice()" disabled>Pagar</button>
      <div id="payOutput" class="output"></div>
    </div>

    <div class="footer">
      <p>
        <a href="https://hackaton.lacrypta.ar" target="_blank">Lightning Hackathons 2026</a> ·
        <a href="https://lacrypta.ar" target="_blank">La Crypta</a> ·
        <a href="https://github.com/lacrypta/lightning-starter" target="_blank">GitHub</a>
      </p>
    </div>
  </div>

  <script type="module">
    import { LightningAddress } from "https://esm.sh/@getalby/lightning-tools@5";

    window.webln = null;

    // Conectar wallet
    window.connectWallet = async function() {
      const status = document.getElementById("walletStatus");
      const output = document.getElementById("walletOutput");
      const btn = document.getElementById("connectBtn");

      try {
        btn.disabled = true;
        btn.textContent = "Conectando...";

        if (typeof window.webln === "undefined" || !window.webln) {
          // Intentar detectar provider
          if (window.nostr) {
            output.textContent = "⚠️ Detecté Nostr pero no WebLN. Instalá Alby para pagos Lightning.";
            output.className = "output show error";
            return;
          }
          throw new Error("No se detectó wallet. Instalá Alby u otra extensión WebLN.");
        }

        await window.webln.enable();
        const info = await window.webln.getInfo();

        status.className = "status connected";
        status.innerHTML = `🟢 Conectado: ${info.node?.alias || "Wallet"}`;

        output.textContent = JSON.stringify(info, null, 2);
        output.className = "output show success";

        // Habilitar botones
        document.getElementById("createInvoiceBtn").disabled = false;
        document.getElementById("payBtn").disabled = false;

        btn.textContent = "✓ Conectado";

      } catch (err) {
        output.textContent = "❌ " + err.message;
        output.className = "output show error";
        btn.disabled = false;
        btn.textContent = "Conectar Wallet";
      }
    };

    // Resolver Lightning Address
    window.resolveLightningAddress = async function() {
      const address = document.getElementById("lnAddress").value;
      const amount = parseInt(document.getElementById("lnAmount").value) || 21;
      const output = document.getElementById("lnAddressOutput");

      try {
        output.textContent = "Resolviendo...";
        output.className = "output show";

        const ln = new LightningAddress(address);
        await ln.fetch();

        const invoice = await ln.requestInvoice({ satoshi: amount });

        output.textContent = `✅ Invoice de ${amount} sats:\n\n${invoice.paymentRequest}`;
        output.className = "output show success";

      } catch (err) {
        output.textContent = "❌ " + err.message;
        output.className = "output show error";
      }
    };

    // Crear invoice
    window.createInvoice = async function() {
      const amount = parseInt(document.getElementById("invoiceAmount").value);
      const memo = document.getElementById("invoiceMemo").value;
      const output = document.getElementById("invoiceOutput");

      try {
        output.textContent = "Creando invoice...";
        output.className = "output show";

        const invoice = await window.webln.makeInvoice({
          amount: amount,
          defaultMemo: memo
        });

        output.textContent = `✅ Invoice creado:\n\n${invoice.paymentRequest}`;
        output.className = "output show success";

      } catch (err) {
        output.textContent = "❌ " + err.message;
        output.className = "output show error";
      }
    };

    // Pagar invoice
    window.payInvoice = async function() {
      const invoice = document.getElementById("payInvoice").value.trim();
      const output = document.getElementById("payOutput");

      if (!invoice) {
        output.textContent = "⚠️ Pegá un invoice bolt11";
        output.className = "output show error";
        return;
      }

      try {
        output.textContent = "Enviando pago...";
        output.className = "output show";

        const result = await window.webln.sendPayment(invoice);

        output.textContent = `✅ Pago exitoso!\n\nPreimage: ${result.preimage}`;
        output.className = "output show success";

      } catch (err) {
        output.textContent = "❌ " + err.message;
        output.className = "output show error";
      }
    };

    // Auto-detect wallet on load
    if (window.webln) {
      document.getElementById("walletStatus").innerHTML = "🟡 Wallet detectada - Click para conectar";
    }
  </script>
</body>
</html>