### Install Laravel Cart using Composer

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

This command installs the Laravel Cart package using Composer, a dependency manager for PHP. It downloads and integrates the necessary files into your Laravel project.

```bash
composer require binafy/laravel-cart
```

--------------------------------

### Creating a Cart and Storing Items

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Demonstrates how to create a cart and store items efficiently using `firstOrCreateWithStoreItems`. This method requires the item model to implement the `Cartable` interface and define a `getPrice` method.

```php
use Binafy\LaravelCart\Cartable;
use Illuminate\Database\Eloquent\Model;

class Product extends Model implements Cartable
{
    public function getPrice(): int
    {
        //
    }
}

// Storing a single item
Cart::query()->firstOrCreateWithStoreItems(
    item: $product,
    quantity: 1,
    userId: $user->id
);

```

--------------------------------

### Using Laravel Cart Facade with Drivers

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Demonstrates how to utilize the Laravel Cart facade to store and remove items, with an option to specify a driver. The default driver is 'database', but 'session' can also be used. Configuration for drivers is available in 'config/laravel-cart.php'.

```php
<?php

use Binafy\LaravelCart\LaravelCart;

LaravelCart::driver('session')->storeItem($item, $userId|null);
LaravelCart::storeItem($item, $userId|null);

LaravelCart::driver('database')->storeItem($item, $userId|null);
LaravelCart::driver('session')->removeItem($item);

```

--------------------------------

### Storing a New Cart with Laravel Cart Model

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Shows how to create a new cart entry using the `Cart` model, ensuring a cart exists for a given user. This is a prerequisite for adding items to a cart.

```php
use \Binafy\LaravelCart\Models\Cart;

$cart = Cart::query()->firstOrCreate(['user_id' => $user->id]);

```

--------------------------------

### Publish Laravel Cart Configuration

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

These commands publish the configuration files, migration files, or all files associated with the Laravel Cart package. Publishing allows you to customize package settings and database schema.

```shell
php artisan vendor:publish --tag="laravel-cart-config"
```

```shell
php artisan vendor:publish --tag="laravel-cart-migrations"
```

```shell
php artisan vendor:publish --provider="Binafy\LaravelCart\Providers\LaravelCartServiceProvider"
```

--------------------------------

### Storing Multiple Items in a Cart

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Explains how to add multiple items to an existing cart using the `storeItems` method. This method accepts an array of items, each with an 'itemable' and 'quantity' key.

```php
use \Binafy\LaravelCart\Models\Cart;

$items = [
    [
        'itemable' => $product1,
        'quantity' => 2,
    ],
    [
        'itemable' => $product2,
        'quantity' => 1,
    ],
    [
        'itemable' => $product3,
        'quantity' => 5,
    ],
];

$cart = Cart::query()->firstOrCreate(['user_id' => $user->id]);
$cart->storeItems($items);

```

--------------------------------

### Emptying All Items from a Cart

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Shows how to remove all items from a cart by calling the `emptyCart` method. This effectively resets the cart to an empty state.

```php
use \Binafy\LaravelCart\Models\Cart;

$cart = Cart::query()->firstOrCreate(['user_id' => $user->id]);
$cart->emptyCart();

```

--------------------------------

### Increasing Item Quantity in a Cart

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Illustrates how to increase the quantity of a specific item within a cart using the `increaseQuantity` method. The method accepts the item and the quantity to add (defaults to 1).

```php
use \Binafy\LaravelCart\Models\Cart;

$cart = Cart::query()->firstOrCreate(['user_id' => $user->id]);
$cart->increaseQuantity(item: $item, quantity: 2); // By default quantity is 1

```

--------------------------------

### Removing an Item from a Cart

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Demonstrates how to remove a specific item from a cart using the `removeItem` method. This method takes the item to be removed as an argument.

```php
use \Binafy\LaravelCart\Models\Cart;

$cart = Cart::query()->firstOrCreate(['user_id' => $user->id]);
$cart->removeItem($product1);

```

--------------------------------

### Storing a Single Item in a Cart

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Provides two methods for storing a single item in a cart: directly saving a `CartItem` instance or using the convenient `storeItem` method which accepts either a model or an array.

```php
use \Binafy\LaravelCart\Models\Cart;
use \Binafy\LaravelCart\Models\CartItem;

$cart = Cart::query()->firstOrCreate(['user_id' => $user->id]);

// Saving a CartItem instance
$cartItem = new CartItem([
    'itemable_id' => $itemable->id,
    'itemable_type' => $itemable::class,
    'quantity' => 1,
]);
$cart->items()->save($cartItem);

// Using storeItem method with a model
$cart->storeItem($itemable);

// Using storeItem method with an array
$item['itemable'] = $itemable;
$item['quantity'] = 1;
$cart->storeItem($item);

```

--------------------------------

### Decreasing Item Quantity in a Cart

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Demonstrates how to decrease the quantity of a specific item within a cart using the `decreaseQuantity` method. The method accepts the item and the quantity to subtract (defaults to 1).

```php
use \Binafy\LaravelCart\Models\Cart;

$cart = Cart::query()->firstOrCreate(['user_id' => $user->id]);
$cart->decreaseQuantity(item: $item, quantity: 2); // By default quantity is 1

```

--------------------------------

### Accessing Itemable Relation in CartItem

Source: https://github.com/binafy/laravel-cart/blob/1.x/README.md

Illustrates how to access the related itemable model from a `CartItem` instance using the `itemable` relation. This is useful for retrieving details of the item stored in the cart.

```php
use \Binafy\LaravelCart\Models\CartItem;

$cartItem = new CartItem([
    'itemable_id' => $itemable->id,
    'itemable_type' => $itemable::class,
    'quantity' => 1,
]);

$cartItem->itemable()->first(); // Return Model Instance

```

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