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✏️ Edit File: /home/u625410797/domains/monothailand.com/public_html/includes/middleware/CartMiddleware.php

<?php
/**
 * Monothailand PHP Version - Cart Validation Middleware
 * ============================================================
 * Validates cart state before checkout
 */

if (!defined('MONO_APP')) {
    define('MONO_APP', true);
}

class CartMiddleware {
    /**
     * Handle cart validation
     * @param array $params Route parameters
     * @return bool True if cart is valid, false otherwise
     */
    public static function handle($params = []) {
        if (session_status() === PHP_SESSION_NONE) {
            session_start();
        }
        
        // Check if cart exists and is not empty
        if (!isset($_SESSION['cart']) || empty($_SESSION['cart'])) {
            // Redirect to products if cart is empty
            header('Location: /products?cart=empty');
            exit;
        }
        
        // Validate cart items structure
        $cart = $_SESSION['cart'];
        $valid = true;
        
        foreach ($cart as $item) {
            // Check basic structure
            if (!isset($item['product_id']) || !isset($item['quantity'])) {
                $valid = false;
                break;
            }
            
            // Validate data types
            if (!is_numeric($item['product_id']) || !is_numeric($item['quantity'])) {
                $valid = false;
                break;
            }
            
            // Validate quantity is positive
            if ($item['quantity'] < 1) {
                $valid = false;
                break;
            }
        }
        
        if (!$valid) {
            // Clear invalid cart and redirect
            $_SESSION['cart'] = [];
            header('Location: /products?cart=invalid');
            exit;
        }
        
        // Optional: Validate products still exist and are in stock
        // This would require database queries - implement if needed
        // self::validateProductAvailability($cart);
        
        return true;
    }
    
    /**
     * Validate that products in cart still exist and are available
     * @param array $cart Cart items
     */
    private static function validateProductAvailability($cart) {
        require_once INCLUDES_PATH . 'database.php';
        
        foreach ($cart as $item) {
            $productId = (int)$item['product_id'];
            
            $stmt = $pdo->prepare("SELECT id, stock_quantity, is_active FROM products WHERE id = ?");
            $stmt->execute([$productId]);
            $product = $stmt->fetch();
            
            if (!$product || !$product['is_active']) {
                // Product no longer exists or is inactive
                self::removeFromCart($productId);
                continue;
            }
            
            if ($product['stock_quantity'] < $item['quantity']) {
                // Not enough stock
                self::updateCartQuantity($productId, $product['stock_quantity']);
            }
        }
    }
    
    /**
     * Remove item from cart
     * @param int $productId Product ID
     */
    private static function removeFromCart($productId) {
        $_SESSION['cart'] = array_filter($_SESSION['cart'], function($item) use ($productId) {
            return $item['product_id'] != $productId;
        });
    }
    
    /**
     * Update cart quantity to available stock
     * @param int $productId Product ID
     * @param int $quantity Available quantity
     */
    private static function updateCartQuantity($productId, $quantity) {
        foreach ($_SESSION['cart'] as &$item) {
            if ($item['product_id'] == $productId) {
                $item['quantity'] = $quantity;
                break;
            }
        }
    }
}
?>

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⬅ Naik ke includes 4 item

Nama	Tipe	Ukuran	Diubah	Aksi
🐘AuthMiddleware.php	php	1.5 KB	2026-05-31 16:42	✏️ Edit 👁️ View
🐘CartMiddleware.php	php	3.6 KB	2026-05-31 16:42	✏️ Edit 👁️ View
🐘CsrfMiddleware.php	php	2.7 KB	2026-05-31 16:42	✏️ Edit 👁️ View
🐘RateLimitMiddleware.php	php	3.7 KB	2026-05-31 16:42	✏️ Edit 👁️ View