85 lines
2.0 KiB
PHP
85 lines
2.0 KiB
PHP
<?php
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if (isset($_POST['form_id'])) {
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session_start();
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require_once '../vendor/autoload.php';
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// Load environment variables.
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$dotenv = Dotenv\Dotenv::createImmutable(__DIR__ . '/../');
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$dotenv->safeLoad();
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require_once 'base.php';
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require_once 'db.php';
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switch ($_POST['form_id']) {
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case 'add_to_cart':
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if (isset($_POST['product_id']) && isset($_POST['quantity']))
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echo urlencode(add_to_cart($_POST['product_id'], $_POST['quantity']));
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break;
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case 'cart':
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handle_cart();
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break;
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}
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}
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function handle_cart()
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{
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if (!isset($_POST['product_id'])) {
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echo urlencode('failure');
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return;
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}
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$id = $_POST['product_id'];
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if (isset($_POST['action'])) {
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switch ($_POST['action']) {
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case 'remove':
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$_SESSION['cart'][$id] = 0;
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unset($_SESSION['cart'][$id]);
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echo urlencode(format_money(calculate_total()));
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break;
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case 'adjust':
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$_SESSION['cart'][$id] = $_POST['quantity'];
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echo urlencode(format_money(calculate_total()));
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break;
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}
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}
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}
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function calculate_total()
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{
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$total = 0;
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foreach ($_SESSION['cart'] as $id => $q) {
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$product = fetch_product($id);
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$total += $product['price'] * $q;
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}
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return $total;
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}
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function set_quantity($id, $q)
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{
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if (isset($_SESSION['cart'][$id]))
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$_SESSION['cart'][$id] = $q;
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}
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function add_to_cart($id, $q)
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{
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if (!isset($_SESSION['cart'][$id]))
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$_SESSION['cart'][$id] = $q;
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else
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$_SESSION['cart'][$id] = $_SESSION['cart'][$id] + $q;
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return count($_SESSION['cart']);
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}
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function fetch_catalog()
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{
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$conn = get_connection();
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$result = $conn->query('SELECT * FROM product');
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return $result;
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}
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function fetch_product($id)
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{
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$result = exec_stmt('SELECT * FROM product WHERE id = ?', 'i', $id);
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return $result->fetch_assoc();
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}
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