Step 28

Instruções

O comportamento do método addItem precisa mudar se o produto já estiver no carrinho ou não. Crie um operador ternário que verifique se o produto atual já está no carrinho. Use undefined para expressões verdadeiras e falsas para evitar um erro de sintaxe.

O que fazer:

Testes:

Você deve verificar se `currentProductCount` é maior que `1`.
Você deve usar um operador ternário com sua condição `currentProductCount > 1`.
Você deve usar `undefined` como a expressão verdadeira.
Você deve usar `undefined` como a expressão falsa.

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>G.E.A.R ACADEMY Shopping Cart</title>
    <link rel="stylesheet" href="./styles.css" />
  </head>
  <body>
    <header>
      <h1 class="title">Desserts Page</h1>
    </header>
    <main>
      <button id="cart-btn" type="button" class="btn">
        <span id="show-hide-cart">Show</span> Cart
      </button>
      <div id="cart-container">
        <button class="btn" id="clear-cart-btn">Clear Cart</button>
        <div id="products-container"></div>
        <p>Total number of items: <span id="total-items">0</span></p>
        <p>Subtotal: <span id="subtotal">$0</span></p>
        <p>Taxes: <span id="taxes">$0</span></p>
        <p>Total: <span id="total">$0</span></p>
      </div>
      <div id="dessert-card-container"></div>
    </main>
    <script src="./script.js"></script>
  </body>
</html>

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --dark-grey: #1b1b32;
  --light-grey: #f5f6f7;
  --black: #000;
  --white: #fff;
  --grey: #3b3b4f;
  --golden-yellow: #fecc4c;
  --yellow: #ffcc4c;
  --gold: #feac32;
  --orange: #ffac33;
  --dark-orange: #f89808;
}

body {
  background-color: var(--dark-grey);
}

.title {
  color: var(--light-grey);
  text-align: center;
  margin: 25px 0;
}

#dessert-card-container {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  align-items: center;
}

.dessert-card {
  background-color: var(--light-grey);
  padding: 15px;
  text-align: center;
  border-radius: 15px;
  margin: 20px 10px;
}

.dessert-price {
  font-size: 1.2rem;
}

.btn {
  display: block;
  cursor: pointer;
  width: 100px;
  color: var(--dark-grey);
  background-color: var(--gold);
  background-image: linear-gradient(var(--golden-yellow), var(--orange));
  border-color: var(--gold);
  border-width: 3px;
}

.btn:hover {
  background-image: linear-gradient(var(--yellow), var(--dark-orange));
}

#cart-btn {
  position: absolute;
  top: 0;
  right: 0;
}

.add-to-cart-btn {
  margin: 30px auto 10px;
}

#cart-container {
  display: none;
  position: absolute;
  top: 60px;
  right: 0;
  background-color: var(--light-grey);
  width: 200px;
  height: 400px;
  border: 8px double var(--black);
  border-radius: 15px;
  text-align: center;
  font-size: 1.2rem;
  overflow-y: scroll;
}

.product {
  margin: 25px 0;
}

.product-count {
  display: inline-block;
  margin-right: 10px;
}

.product-category {
  margin: 10px 0;
}

@media (min-width: 768px) {
  #dessert-card-container {
    flex-direction: row;
  }

  .dessert-card {
    flex: 1 0 21%;
  }

  #cart-container {
    width: 300px;
  }
}

const cartContainer = document.getElementById("cart-container");
const productsContainer = document.getElementById("products-container");
const dessertCards = document.getElementById("dessert-card-container");
const cartBtn = document.getElementById("cart-btn");
const clearCartBtn = document.getElementById("clear-cart-btn");
const totalNumberOfItems = document.getElementById("total-items");
const cartSubTotal = document.getElementById("subtotal");
const cartTaxes = document.getElementById("taxes");
const cartTotal = document.getElementById("total");
const showHideCartSpan = document.getElementById("show-hide-cart");
let isCartShowing = false;

class Dessert {
  constructor(id, name, price, category) {
    this.id = id;
    this.name = name;
    this.price = price;
    this.category = category;
  }
}

const products = [
  new Dessert(1, "Vanilla Cupcakes (6 Pack)", 12.99, "Cupcake"),
  new Dessert(2, "French Macaron", 3.99, "Macaron"),
  new Dessert(3, "Pumpkin Cupcake", 3.99, "Cupcake"),
  new Dessert(4, "Chocolate Cupcake", 5.99, "Cupcake"),
  new Dessert(5, "Chocolate Pretzels (4 Pack)", 10.99, "Pretzel"),
  new Dessert(6, "Strawberry Ice Cream", 2.99, "Ice Cream"),
  new Dessert(7, "Chocolate Macarons (4 Pack)", 9.99, "Macaron"),
  new Dessert(8, "Strawberry Pretzel", 4.99, "Pretzel"),
  new Dessert(9, "Butter Pecan Ice Cream", 2.99, "Ice Cream"),
  new Dessert(10, "Rocky Road Ice Cream", 2.99, "Ice Cream"),
  new Dessert(11, "Vanilla Macarons (5 Pack)", 11.99, "Macaron"),
  new Dessert(12, "Lemon Cupcakes (4 Pack)", 12.99, "Cupcake"),
];

products.forEach(
  ({ name, id, price, category }) => {
    dessertCards.innerHTML += `
      <div class="dessert-card">
        <h2>${name}</h2>
        <p class="dessert-price">$${price}</p>
        <p class="product-category">Category: ${category}</p>
        <button 
          id="${id}" 
          class="btn add-to-cart-btn">Add to cart
        </button>
      </div>
    `;
  }
);

class ShoppingCart {
  constructor() {
    this.items = [];
    this.total = 0;
    this.taxRate = 8.25;
  }


  addItem(id, products) {
    const product = products.find((item) => item.id === id);
    const { name, price } = product;
    this.items.push(product);

    const totalCountPerProduct = {};
    this.items.forEach((dessert) => {
      totalCountPerProduct[dessert.id] = (totalCountPerProduct[dessert.id] || 0) + 1;
    })

    const currentProductCount = totalCountPerProduct[product.id];
    const currentProductCountSpan = document.getElementById(`product-count-for-id${id}`);


  }

};

Preview