Merge pull request #1 from wagnerwagner/feature-shipping-costs

Added Cart hook

blueprints/pages/product.yml

@@ -11,7 +11,6 @@ fields:
     type: number
     required: true
     step: .01
-    min: 0
   tax:
     label: Tax
     type: number

src/cart.php

@@ -14,10 +14,12 @@ class Cart extends ProductList
      */
     public function __construct(array $data = [])
     {
-        if (count($data) === 0 && is_array(kirby()->session()->get($this->sessionName))) {
-            $data = kirby()->session()->get($this->sessionName);
+        $kirby = kirby();
+        if (count($data) === 0 && is_array($kirby->session()->get($this->sessionName))) {
+            $data = $kirby->session()->get($this->sessionName);
         }
         parent::__construct($data);
+        $kirby->trigger('ww.merx.cart', $this);
     }
 
 

src/productList.php

@@ -111,16 +111,15 @@ public function __set(string $key, $value): self
         if ($value['quantity'] < 0) {
             throw new \Exception('Quantity cannot be negative.');
         }
-        if ($value['price'] < 0) {
-            throw new \Exception('Price cannot be negative.');
-        }
-        if ($value['tax'] < 0) {
-            throw new \Exception('Tax cannot be negative');
+        $this->data[strtolower($key)] = $value;
+
+        if ($this->getTax() < 0) {
+            throw new \Exception('Tax of Cart must be positive');
         }
-        if ($value['sum'] < 0) {
-            throw new \Exception('Sum cannot be negative');
+
+        if ($this->getSum() < 0) {
+            throw new \Exception('Sum of Cart must be positive');
         }
-        $this->data[strtolower($key)] = $value;
 
         return $this;
     }