finished final project

2025-05-05 21:53:39 -06:00
parent 5cd4571a92
commit 3f844e4e06
32 changed files with 1087 additions and 219 deletions
@@ -1,14 +1,84 @@
 <?php
+if (isset($_POST['form_id'])) {
+    session_start();
+    require_once '../vendor/autoload.php';
+    // Load environment variables.
+    $dotenv = Dotenv\Dotenv::createImmutable(__DIR__ . '/../');
+    $dotenv->safeLoad();
+    require_once 'base.php';
+    require_once 'db.php';
+
+    switch ($_POST['form_id']) {
+        case 'add_to_cart':
+            if (isset($_POST['product_id']) && isset($_POST['quantity']))
+                echo urlencode(add_to_cart($_POST['product_id'], $_POST['quantity']));
+            break;
+        case 'cart':
+            handle_cart();
+            break;
+    }
+}
+
+function handle_cart()
+{
+    if (!isset($_POST['product_id'])) {
+        echo urlencode('failure');
+        return;
+    }
+
+    $id = $_POST['product_id'];
+
+    if (isset($_POST['action'])) {
+        switch ($_POST['action']) {
+            case 'remove':
+                $_SESSION['cart'][$id] = 0;
+                unset($_SESSION['cart'][$id]);
+                echo urlencode(format_money(calculate_total()));
+                break;
+            case 'adjust':
+                $_SESSION['cart'][$id] = $_POST['quantity'];
+                echo urlencode(format_money(calculate_total()));
+                break;
+        }
+    }
+}
+
+function calculate_total()
+{
+    $total = 0;
+    foreach ($_SESSION['cart'] as $id => $q) {
+        $product = fetch_product($id);
+        $total += $product['price'] * $q;
+    }
+
+    return $total;
+}
+
+function set_quantity($id, $q)
+{
+    if (isset($_SESSION['cart'][$id]))
+        $_SESSION['cart'][$id] = $q;
+}
+
+function add_to_cart($id, $q)
+{
+    if (!isset($_SESSION['cart'][$id]))
+        $_SESSION['cart'][$id] = $q;
+    else
+        $_SESSION['cart'][$id] = $_SESSION['cart'][$id] + $q;
+
+    return count($_SESSION['cart']);
+}

 function fetch_catalog()
 {
-  $conn = get_connection();
-  $result = $conn->query('SELECT * FROM product');
-  return $result;
+    $conn = get_connection();
+    $result = $conn->query('SELECT * FROM product');
+    return $result;
 }

 function fetch_product($id)
 {
-  $result = exec_stmt('SELECT * FROM product WHERE id = ?', 'i', $id);
-  return $result->fetch_assoc();
+    $result = exec_stmt('SELECT * FROM product WHERE id = ?', 'i', $id);
+    return $result->fetch_assoc();
 }