AwoCoupon: First version of the AwoCoupon variables plugin

plugins/awocoupon/awocoupon.php

@@ -6,7 +6,7 @@ defined ('_JEXEC') or die('Restricted access');
  * AwoCoupon variables for VM Shipping by Rules
  *
  * @subpackage Plugins - VmShipmentRules
- * @copyright Copyright (C) 2014 Reinhold Kainhofer, office@open-tools.net
+ * @copyright Copyright (C) 2015 Reinhold Kainhofer, office@open-tools.net
  * @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.txt
  * VirtueMart is free software. This version may have been modified pursuant
  * to the GNU General Public License, and as distributed it includes or
@@ -23,22 +23,53 @@ if (!class_exists ('VmPlugin')) {
 
 /** Extension plugin for the "Shipping by Rules" shipping plugin for VirtueMart
  */
-class plgVmShipmentRulesRules_AwoCoupon extends VmPlugin {
+class plgVmShipmentRulesAwoCoupon extends VmPlugin {
 	/**  Trigger to add variables to the cart values
 	  *  You can add new variables to the $cartvals array or modify existing ones. They will be directly 
 	  *  available in all rules.
 	  *  Please notice that this function might also be called for only a subset of products of the cart.
 	  */
 	function onVmShippingRulesGetCartValues(&$cartvals, $cart, $products, $method, $cart_prices) {
+		// First, make sure coupons are processes (VM core processes third-party coupons AFTER the shipping)
+		// This does NOT update the cart_prices array, but at least it makes sure Awocoupon has processed the coupon
+		JPluginHelper::importPlugin('vmcoupon');
+		if (!empty($cart->couponCode)) {
+			$dispatcher = JDispatcher::getInstance();
+			// TODO: This does not yet work...
+// 			$returnValues = $dispatcher->trigger('plgVmCouponHandler', array($cart->couponCode, &$cart->cartData, $cart->cartPrices));
+		}
+
 		$coupon_discount = 0;
 		$session = JFactory::getSession();
 		$coupon_row = $session->get('coupon', '', 'awocoupon');
+		
+		$cartvals['awoproductdiscount'] = 0.0;
+		$cartvals['awoproductdiscountnotax'] = 0.0;
+// 		$cartvals['awoproductdiscounttax'] = 0.0;
+		$cartvals['awoshippingdiscount'] = 0.0;
+		$cartvals['awoshippingdiscountnotax'] = 0.0;
+// 		$cartvals['awoshippingdiscounttax'] = 0.0;
+		$cartvals['awodiscount'] = 0.0;
 		if(!empty($coupon_row)) {
 			$coupon_row = unserialize($coupon_row);
- 			$coupon_discount = $coupon_row['product_discount'] + $coupon_row['shipping_discount'];
+// JFactory::getApplication()->enqueueMessage("<pre>AwoCoupon row: ".print_r($coupon_row,1)."</pre>", 'error');
+
+			$cartvals['awoproductdiscount']       = $coupon_row['product_discount'];
+			$cartvals['awoproductdiscountnotax']  = $coupon_row['product_discount_notax'];
+// 			$cartvals['awoproductdiscounttax']    = $coupon_row['product_discount_tax'];
+			$cartvals['awoshippingdiscount']      = $coupon_row['shipping_discount'];
+			$cartvals['awoshippingdiscountnotax'] = $coupon_row['shipping_discount_notax'];
+// 			$cartvals['awoshippingdiscounttax']   = $coupon_row['shipping_discount_tax'];
+ 			$cartvals['awodiscount']              = $coupon_row['product_discount'] + $coupon_row['shipping_discount'];
 		}
-		$cartvals['awodiscount'] = $coupon_discount;
-	}
+		$cartvals['amountaftercoupon'] = $cartvals['amount'] - $cartvals['awoproductdiscount'];
+		$cartvals['amountwithtaxaftercoupon'] = $cartvals['amountaftercoupon'];
+		$cartvals['taxamountaftercoupon'] = $cartvals['taxamount'] - ($cartvals['awoproductdiscount'] - $cartvals['awoproductdiscountnotax']);
+		$cartvals['amountwithouttaxaftercoupon'] = $cartvals['amountaftercoupon'] - $cartvals['taxamountaftercoupon'];
+		
+		// TODO: Apply shipping coupon discounts
+    }
 }
+  
 
 // No closing tag