Apps aisladas

apps/roleta/index.html   la página (obligatoria)
apps/roleta/app.js       el script
apps/roleta/app.css      el estilo
apps/roleta/app.json     nombre, altura y permisos

{
  "name": "Ruleta de kits",
  "description": "Sortea un kit de la tienda",
  "height": 460,
  "permissions": ["customer"]
}

<!doctype html>
<html lang="es">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="app.css">
</head>
<body>
  <p id="hello" class="hello">Gira y descubre tu kit</p>
  <div class="stage">
    <div class="pointer"></div>
    <div id="wheel" class="wheel"></div>
  </div>
  <button id="spin" class="spin" type="button" disabled>Girar</button>
  <div id="result" class="result" aria-live="polite"></div>

  <script src="/sdk/v1.js"></script>
  <script src="app.js"></script>
</body>
</html>

* { box-sizing: border-box; }
body { margin: 0; padding: 16px; font: 15px/1.5 system-ui, sans-serif; color: #e8eef8; background: transparent; text-align: center; }
html.light body { color: #0b1526; }
.hello { margin: 0 0 12px; font-weight: 700; }
.stage { position: relative; width: 260px; height: 260px; margin: 0 auto 16px; }
.wheel { width: 100%; height: 100%; border-radius: 50%; border: 6px solid #f5b544; transition: transform 4s cubic-bezier(.17, .67, .12, .99); }
.pointer { position: absolute; top: -6px; left: 50%; z-index: 1; transform: translateX(-50%); border: 12px solid transparent; border-top: 22px solid #f5b544; }
.spin { padding: 10px 28px; border: 0; border-radius: 12px; background: #0ea5e9; color: #fff; font-weight: 700; cursor: pointer; }
.spin:disabled { opacity: .5; cursor: default; }
.result { min-height: 64px; margin-top: 14px; }
.result button { margin-left: 8px; padding: 6px 14px; border: 0; border-radius: 10px; background: #f5b544; color: #1c1305; font-weight: 700; cursor: pointer; }

(function () {
  var wheel = document.getElementById('wheel');
  var spin = document.getElementById('spin');
  var result = document.getElementById('result');
  var products = [];
  var turns = 0;

  // El modo de color y el idioma de la tienda.
  hystore.context().then(function (ctx) {
    document.documentElement.classList.toggle('light', ctx.colorMode === 'light');
  });

  // El nick de quien inició sesión (necesita "customer" en app.json).
  hystore.customer().then(function (me) {
    if (me.loggedIn) document.getElementById('hello').textContent = '¡Suerte, ' + me.nick + '!';
  }).catch(function () { /* sin el permiso: queda el texto estándar */ });

  // Los productos públicos de la categoría "kits".
  hystore.products({ category: 'kits', limit: 8 }).then(function (list) {
    products = list.filter(function (p) { return !p.soldOut; });
    if (!products.length) {
      result.textContent = 'Ningún kit disponible ahora.';
      return;
    }
    paint();
    spin.disabled = false;
  });

  function paint() {
    var slice = 360 / products.length;
    var colors = ['#0ea5e9', '#1d4ed8'];
    var stops = products.map(function (p, i) {
      return colors[i % 2] + ' ' + i * slice + 'deg ' + (i + 1) * slice + 'deg';
    });
    wheel.style.background = 'conic-gradient(' + stops.join(', ') + ')';
  }

  spin.addEventListener('click', function () {
    var i = Math.floor(Math.random() * products.length);
    var slice = 360 / products.length;
    turns += 5;
    wheel.style.transform = 'rotate(' + (turns * 360 - (i * slice + slice / 2)) + 'deg)';
    spin.disabled = true;
    setTimeout(function () {
      show(products[i]);
      spin.disabled = false;
    }, 4200);
  });

  function show(product) {
    result.textContent = '';
    var text = document.createElement('p');
    text.textContent = 'Salió: ' + product.name + ' por ' + product.priceText;
    var buy = document.createElement('button');
    buy.type = 'button';
    buy.textContent = 'Poner en el carrito';
    buy.addEventListener('click', function () {
      hystore.addToCart(product.id, 1).then(function (answer) {
        if (answer === 'added') hystore.open('cart');
        else if (answer === 'sold_out') buy.textContent = 'Agotado';
        // 'login': la tienda ya le pidió a la persona que inicie sesión.
      });
    });
    text.appendChild(buy);
    result.appendChild(text);
  }
})();

<section class="roleta">
  <h2>{{ section.settings.title }}</h2>
  <hystore-app data-app="roleta"></hystore-app>
</section>
{% schema %}
{
  "name": "Ruleta de kits",
  "settings": [
    { "id": "title", "type": "text", "label": "Título", "default": "Prueba tu suerte" }
  ]
}
{% endschema %}

{
  "id": "0f558e5e-636a-4e5a-9739-24c711463ebf",
  "name": "Kit Guerrero",
  "slug": "kit-guerrero",
  "url": "/loja/survival/kits/produto/kit-guerrero",
  "price": 19.9,
  "priceText": "US$ 19,90",
  "originalPrice": 29.9,
  "originalPriceText": "US$ 29,90",
  "onSale": true,
  "image": "https://...",
  "shortDescription": "Espada, armadura y 64 manzanas",
  "durationDays": null,
  "minQuantity": 1,
  "soldOut": false,
  "digital": false,
  "categorySlug": "kits",
  "serverId": "survival"
}