From 175fda95f314cdb9b72dd58f7aa3d03c38a53792 Mon Sep 17 00:00:00 2001
From: trinigelos <trinidadgelos7@gmail.com>
Date: Wed, 7 Aug 2024 11:38:13 -0300
Subject: [PATCH] Shopping Cart - JS QUERY SELECTORS

---
 index.html  | 21 +++++++++++---
 js/index.js | 82 +++++++++++++++++++++++++++++++++++++++++++++--------
 2 files changed, 87 insertions(+), 16 deletions(-)

diff --git a/index.html b/index.html
index 752a993..6d9b0ab 100644
--- a/index.html
+++ b/index.html
@@ -33,21 +33,34 @@ <h1>Root Cart</h1>
           </td>
         </tr>
         <!-- Iteration 2: Add more products here -->
+        <tr class="product">
+          <td class="name">
+            <span>Root Ducky</span>
+          </td>
+          <td class="price">$<span>85.00</span></td>
+          <td class="quantity">
+            <input type="number" value="0" min="0" placeholder="Quantity" />
+          </td>
+          <td class="subtotal">$<span>0</span></td>
+          <td class="action">
+            <button class="btn btn-remove">Remove</button>
+          </td>
+        </tr>
       </tbody>
       <tfoot>
-        <!-- <tr class="create-product">
+        <tr class="create-product">
           <td>
-            <input type="text" placeholder="Product Name" />
+            <input type="text" class="new-product-name" placeholder="Product Name" />
           </td>
           <td>
-            <input type="number" min="0" value="0" placeholder="Product Price" />
+            <input type="number" class="new-product-price" min="0" value="0" placeholder="Product Price" />
           </td>
           <td></td>
           <td></td>
           <td>
             <button id="create" class="btn">Create Product</button>
           </td>
-        </tr> -->
+        </tr>
       </tfoot>
     </table>
     <p class="calculate-total">
diff --git a/js/index.js b/js/index.js
index 75405d6..7c090d7 100644
--- a/js/index.js
+++ b/js/index.js
@@ -3,21 +3,31 @@
 function updateSubtotal(product) {
   console.log('Calculating subtotal, yey!');
 
-  //... your code goes here
+  const price = product.querySelector('.price span');
+  const quantity = product.querySelector('.quantity input');
+
+  const priceValue = parseFloat(price.innerHTML);
+  const quantityValue = parseFloat(quantity.value);
+
+  const subtotalValue = priceValue * quantityValue;
+
+  const subtotal = product.querySelector('.subtotal span');
+  subtotal.innerHTML = subtotalValue.toFixed(2);
+
+  return subtotalValue;
 }
 
 function calculateAll() {
-  // code in the following two lines is added just for testing purposes.
-  // it runs when only iteration 1 is completed. at later point, it can be removed.
-  const singleProduct = document.querySelector('.product');
-  updateSubtotal(singleProduct);
-  // end of test
-
   // ITERATION 2
-  //... your code goes here
+  const products = document.getElementsByClassName('product');
+  let total = 0;
+  for (let i = 0; i < products.length; i++) {
+    total += updateSubtotal(products[i]);
+  }
 
   // ITERATION 3
-  //... your code goes here
+  const totalValue = document.querySelector('#total-value span');
+  totalValue.innerHTML = total.toFixed(2);
 }
 
 // ITERATION 4
@@ -25,18 +35,66 @@ function calculateAll() {
 function removeProduct(event) {
   const target = event.currentTarget;
   console.log('The target in remove is:', target);
-  //... your code goes here
+
+  // Find parent and remove it:
+  const productRow = target.closest('.product');
+  productRow.parentNode.removeChild(productRow);
+
+  // Recalculate
+  calculateAll();
 }
 
 // ITERATION 5
 
 function createProduct() {
-  //... your code goes here
+  const nameInput = document.querySelector('.new-product-name');
+  const priceInput = document.querySelector('.new-product-price');
+
+  const nameValue = nameInput.value;
+  const priceValue = parseFloat(priceInput.value).toFixed(2);
+
+  if (nameValue.trim() === '' || priceValue <= 0) {
+    alert('Please enter a valid product name and price.');
+    return;
+  }
+
+  const productRow = document.createElement('tr');
+  productRow.classList.add('product');
+
+  productRow.innerHTML = `
+    <td class="name"><span>${nameValue}</span></td>
+    <td class="price">$<span>${priceValue}</span></td>
+    <td class="quantity">
+      <input type="number" value="0" min="0">
+    </td>
+    <td class="subtotal">$<span>0</span></td>
+    <td class="action">
+      <button class="btn btn-remove">Remove</button>
+    </td>
+  `;
+
+  const cartBody = document.querySelector('tbody');
+  cartBody.appendChild(productRow);
+
+  // Add event listener to the new remove button
+  const removeButton = productRow.querySelector('.btn-remove');
+  removeButton.addEventListener('click', removeProduct);
+
+  // Clear the input fields
+  nameInput.value = '';
+  priceInput.value = 0;
 }
 
 window.addEventListener('load', () => {
   const calculatePricesBtn = document.getElementById('calculate');
   calculatePricesBtn.addEventListener('click', calculateAll);
 
-  //... your code goes here
+  const createProductBtn = document.getElementById('create');
+  createProductBtn.addEventListener('click', createProduct);
+
+  // Attach event listeners to existing remove buttons
+  const removeButtons = document.getElementsByClassName('btn-remove');
+  for (let i = 0; i < removeButtons.length; i++) {
+    removeButtons[i].addEventListener('click', removeProduct);
+  }
 });