README

Modern Laravel shopping cart package with clean architecture

📖 For detailed documentation, examples, and advanced usage, see DOCUMENTATION.md

🎯 Features

• ✅ Event-Driven Design - Comprehensive listeners for cart lifecycle events
• ✅ Advanced Calculations - Dynamic tax system, flexible shipping, flexible discount system (fixed, percentage, free shipping with conditional logic)
• ✅ Multiple Cart Instances - Proper user/session isolation and state management
• ✅ Service-Based API - Clean service layer for cart operations
• ✅ Database Persistence - Reliable storage with automatic expiration handling

📦 Installation

Install via Composer:

composer require andreilungeanu/simple-cart

Publish and run migrations:

php artisan vendor:publish --tag="simple-cart-migrations"
php artisan migrate

Optionally publish the configuration:

php artisan vendor:publish --tag="simple-cart-config"

🚀 Quick Start

Basic Usage

use AndreiLungeanu\SimpleCart\Facades\Cart;

// Create cart for user
$cart = Cart::create(userId: 123);

// Add items to cart
Cart::addItem($cart, [
    'product_id' => 'prod_1',
    'name' => 'Gaming Laptop', 
    'price' => 1299.99,
    'quantity' => 1,
    'category' => 'electronics'
]);

Cart::addItem($cart, [
    'product_id' => 'prod_2',
    'name' => 'Wireless Mouse',
    'price' => 25.50,
    'quantity' => 2
]);

// Apply tax
Cart::applyTax($cart, [
    'code' => 'VAT_UK',
    'rate' => 0.20,
    'apply_to_shipping' => true
]);

// Apply discount
Cart::applyDiscount($cart, [
    'code' => 'SAVE50',
    'type' => 'fixed',
    'value' => 50,
    'conditions' => ['minimum_amount' => 100]
]);

// Apply shipping
Cart::applyShipping($cart, [
    'method_name' => 'Express Shipping',
    'cost' => 15.99,
    'carrier' => 'UPS'
]);

// Get calculations
$subtotal = Cart::calculateSubtotal($cart);    // 1350.99
$shipping = Cart::calculateShipping($cart);    // 15.99 (or 0 if free shipping)
$tax = Cart::calculateTax($cart);              // Based on applied tax config
$total = Cart::calculateTotal($cart);          // Final total with all calculations

echo "Final Total: $" . $total;

Cart Summary

// Get complete cart overview
$summary = Cart::getCartSummary($cart);
/*
[
    'id' => 'cart-uuid',
    'item_count' => 3,
    'subtotal' => 1350.99,
    'shipping' => 15.99,
    'tax' => 270.20,
    'discounts' => 50.00,
    'total' => 1586.18,
    'status' => 'active',
    'expires_at' => '2025-10-07T12:00:00.000000Z'
]
*/

Cart merge stratery on login

When a user logs in and both a guest session cart and a user cart exist, you can control behavior via login_cart_strategy (env: CART_ON_LOGIN_CART_STRATEGY). Options: merge (default), guest, user.

For details, see the documentation section “Cart Merge Strategy on Login”.

🔧 Key Features Overview

Dynamic Tax System

• Priority-based rates: Item-specific > Category > Type > Default
• Flexible conditions: Support for any tax scenario
• API integration ready: Perfect for external tax services

Advanced Discounts

• Multiple types: Percentage, fixed amount, free shipping
• Conditional logic: Minimum amounts, item requirements, categories
• Stacking support: Configure multiple discount behavior

Flexible Shipping

• Dynamic rates: Your app provides shipping data
• Free shipping: Threshold-based or discount-based
• Carrier integration: Store any shipping method data

Event-Driven Architecture

All cart operations dispatch events for:

• Analytics tracking
• Inventory management
• Cache invalidation
• Custom business logic

📖 Complete Documentation

For comprehensive documentation including:

• Detailed API reference with all methods and parameters
• Advanced tax scenarios (EU VAT, US State tax, API integration)
• Conditional discount patterns (percentage, fixed amount, free shipping; quantity/amount conditions)
• Event handling examples (analytics, inventory, notifications)
• Performance optimization tips and caching strategies
• Security best practices and error handling
• Complete usage examples for real-world scenarios

👉 See DOCUMENTATION.md

⚡ Configuration

Basic configuration in config/simple-cart.php:

return [
    'storage' => [
        'ttl_days' => 30,              // Cart expiration
    ],
    'shipping' => [
        'free_shipping_threshold' => 100.00,  // Free shipping over $100
    ],
    'discounts' => [
        'allow_stacking' => false,     // Allow multiple discount codes
        'max_discount_codes' => 3,     // Maximum discount codes per cart
    ],
];

🧹 Maintenance

Clean up expired carts:

# Manual cleanup
php artisan simple-cart:cleanup

# Scheduled cleanup (add to Kernel.php)
$schedule->command('simple-cart:cleanup --force')->daily();

📄 License

The MIT License (MIT). Please see License File for more information.

Need help? Check the complete documentation or create an issue on GitHub.