Possibility to add extra costs

- eg shipping, transaction, ...
- dirty fix - i know, need it urgently

Author: MichaelBelgium

README.md

@@ -394,6 +394,11 @@ Below is a little example of how to list the cart content in a table:
 Cart::add('192ao12', 'Product 1', 1, 9.99);
 Cart::add('1239ad0', 'Product 2', 2, 5.95, ['size' => 'large']);
 
+// Set an additional cost (on the same page where you display your cart content)
+Cart::setCost(Cart::COST_TRANSACTION, 0.10);
+Cart::setCost(Cart::COST_SHIPPING, 5.00);
+Cart::setCost('somethingelse', 1.11);
+
 // Display the content in a View.
 <table>
    	<thead>
@@ -434,6 +439,21 @@ Cart::add('1239ad0', 'Product 2', 2, 5.95, ['size' => 'large']);
    			<td>Tax</td>
    			<td><?php echo Cart::tax(); ?></td>
    		</tr>
+        <tr>
+            <td colspan="2">&nbsp;</td>
+            <td>Transaction cost</td>
+            <td><?php echo Cart::getCost(\Gloudemans\Shoppingcart\Cart::COST_TRANSACTION); ?></td>
+        </tr>
+        <tr>
+            <td colspan="2">&nbsp;</td>
+            <td>Transaction cost</td>
+            <td><?php echo Cart::getCost(\Gloudemans\Shoppingcart\Cart::COST_SHIPPING); ?></td>
+        </tr>
+        <tr>
+            <td colspan="2">&nbsp;</td>
+            <td>Transaction cost</td>
+            <td><?php echo Cart::getCost('somethingelse'); ?></td>
+        </tr>
    		<tr>
    			<td colspan="2">&nbsp;</td>
    			<td>Total</td>

src/Cart.php

@@ -16,6 +16,9 @@ class Cart
 {
     const DEFAULT_INSTANCE = 'default';
 
+    const COST_SHIPPING = 'shipping';
+    const COST_TRANSACTION = 'transaction';
+
     /**
      * Instance of the session manager.
      *
@@ -37,6 +40,8 @@ class Cart
      */
     private $instance;
 
+    private $extraCosts;
+
     /**
      * Cart constructor.
      *
@@ -47,6 +52,7 @@ public function __construct(SessionManager $session, Dispatcher $events)
     {
         $this->session = $session;
         $this->events = $events;
+        $this->extraCosts = array();
 
         $this->instance(self::DEFAULT_INSTANCE);
     }
@@ -111,6 +117,30 @@ public function add($id, $name = null, $qty = null, $price = null, array $option
         return $cartItem;
     }
 
+    /**
+     * Sets/adds an additional cost on the cart.
+     *
+     * @param $type
+     * @param $price
+     * @todo add in session
+     */
+    public function setCost($name, $price)
+    {
+        $this->extraCosts[$name] = $price;
+    }
+
+    /**
+     * @param $name
+     * @param null $decimals
+     * @param null $decimalPoint
+     * @param null $thousandSeperator
+     * @return string
+     */
+    public function getCost($name, $decimals = null, $decimalPoint = null, $thousandSeperator = null)
+    {
+        return $this->numberFormat($this->extraCosts[$name] ?? 0, $decimals, $decimalPoint, $thousandSeperator);
+    }
+
     /**
      * Update the cart item with the given rowId.
      *
@@ -242,6 +272,10 @@ public function total($decimals = null, $decimalPoint = null, $thousandSeperator
             return $total + ($cartItem->qty * $cartItem->priceTax);
         }, 0);
 
+        foreach ($this->extraCosts as $cost) {
+            $total += $cost;
+        }
+
         return $this->numberFormat($total, $decimals, $decimalPoint, $thousandSeperator);
     }