add product sell discount js changes

frontend/web/js/product.sell.js

@@ -19,6 +19,7 @@ function ProductSell(o){
 	    message_paid: 'Tételek fizetve',
 	    /**list of sold items by current user*/
 	    sold_items: [],
+	    discounts: [],
 	};
 	
 	init();
@@ -34,12 +35,17 @@ function ProductSell(o){
 		setFocus();
 		addEnterPressedBehaviours();
 		addBehaviorCountChangedListener();
+		addBehaviourDisocuntChanged();
 		createUserSoldItemsTable();
 		addBehaviourBtnPaid();
 		productChanged();
 		addDocumentKeypressedListener();
 	}
 	
+	function addBehaviourDisocuntChanged(){
+		$("#productsaleform-id_discount").change(refreshCalculatedValues);
+	}
+	
 	function addDocumentKeypressedListener(){
 		$(  document ).keypress(function( event ) {
 			
@@ -235,15 +241,23 @@ function ProductSell(o){
 	}
 		
 	function refreshCalculatedValues(){
-		var count,price;
+		var count,price,id_discount,discount;
 		var table;
 		table = $('.table-product');
 		count = $("#productsaleform-count").val();
+		id_discount = $("#productsaleform-id_discount").val();
+		app.discount = findDiscount( id_discount );
 		count = +count;
 		if ( isNaN(count)){
 			count = 0;
 		}
 		price = count * app.product.sale_price;
+		
+		
+		discount = calcDiscount(price, app.discount);
+		price = deductDiscount(price,discount);
+		price = normalizePrice(price);
+		
 		table.find('.product-count').html(count);
 		table.find('.product-price').html(price);
 	}
@@ -345,13 +359,54 @@ function ProductSell(o){
 		});
 	}
 	
-	
 	function createUserSoldItemsTable(){
 		$('.sold-items-container').transferList({
 			'transfers' : app.defaults.sold_items
 		});
 	}
 	
+	function findDiscount(id_discount){
+		var discount;
+		discount = null;
+		$.each( app.defaults.discounts , function(e,i){
+			if ( e.id_discount == id_discount ){
+				discount = e;
+			}
+			
+		});
+		return discount;
+	}
 	
+	function calcDiscount(price,discount){
+		var result, discountMoney;
+		result = 0;
+		
+		if ( discount ){
+			result = price * ( discount.value / 100 );
+		}
+		
+		return result;
+	}
+	
+	function deductDiscount( price , discount ){
+			var result;
+			result = price - discount;
+			return result;
+	}
+	
+	function normalizePrice( price ){
+		var result;
+		result = hufRound(price);
+		return result;
+	}
+	
+	function hufRound(x)
+    {
+        if (x > 0) {
+            return (x % 5) >= 2.5 ? parseInt(x / 5) * 5 + 5 : parseInt(x / 5) * 5;
+        } else {
+            return ((Math.abs(x) % 5) >= 2.5 ? parseInt(Math.abs(x) / 5) * 5 + 5 : parseInt(Math.abs(x) / 5) * 5)*-1;
+        }
+    }
 	
 }