feat: add HasCart trait and ShareCartWithInertia

src/Concerns/HasCart.php

@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Wearepixel\Cart\Concerns;
+
+use Wearepixel\Cart\Cart;
+
+trait HasCart
+{
+    public array $cartItems = [];
+
+    public float $cartTotal = 0.0;
+
+    public float $cartSubTotal = 0.0;
+
+    public int $cartCount = 0;
+
+    protected function getCart(): Cart
+    {
+        return app('cart');
+    }
+
+    public function refreshCart(): void
+    {
+        $cart = $this->getCart();
+
+        $this->cartItems = $cart->getContent()->toArray();
+        $this->cartSubTotal = (float) $cart->getSubTotal(false);
+        $this->cartTotal = (float) $cart->getTotal();
+        $this->cartCount = (int) $cart->getTotalQuantity();
+    }
+
+    public function cartAdd(
+        int|string $id,
+        string $name,
+        float $price,
+        int $quantity = 1,
+        array $attributes = [],
+    ): void {
+        $this->getCart()->add($id, $name, $price, $quantity, $attributes);
+        $this->refreshCart();
+    }
+
+    public function cartRemove(int|string $id): void
+    {
+        $this->getCart()->remove($id);
+        $this->refreshCart();
+    }
+
+    public function cartUpdate(int|string $id, array $data): void
+    {
+        $this->getCart()->update($id, $data);
+        $this->refreshCart();
+    }
+
+    public function cartClear(): void
+    {
+        $this->getCart()->clear();
+        $this->refreshCart();
+    }
+}

src/Concerns/ShareCartWithInertia.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Wearepixel\Cart\Concerns;
+
+use Wearepixel\Cart\Cart;
+
+class ShareCartWithInertia
+{
+    public static function data(?Cart $cart = null): array
+    {
+        $cart ??= app('cart');
+
+        return [
+            'items'    => $cart->getContent()->toArray(),
+            'subtotal' => (float) $cart->getSubTotal(false),
+            'total'    => (float) $cart->getTotal(),
+            'count'    => (int) $cart->getTotalQuantity(),
+        ];
+    }
+}