Commit 4

hinzufügen der Berechnung für die Anzahl aller waren im Warenkorb, dem Versandpreis, dem brutto, sowie Nettopreis mit den jeweiligen unterscheidungen

Cart.java

@@ -41,5 +41,103 @@ public class Cart {
         return false;
     }
 
+    public int AmountAllCart (){
+        return cartContents.size();
+    }
+
+    public double GrossAmountProd (){
+        double gross = 0.0;
+        for(Products prod: cartContents) {
+            gross += prod.getGrossPrice();
+        }
+          return gross;
+    }
+
+    public double ContentsMass() {
+        double weights = 0.0;
+        for(Products prod: cartContents) {
+            weights += prod.getWeight();
+        }
+        return weights;
+    }
+
+    public double ContentsNetWorth() {
+        double netWorth = 0.0;
+        for(Products prod: cartContents) {
+            netWorth += prod.getNetWorth();
+        }
+        return netWorth;
+    }
+
+
+    public double deliveryCost () {
+
+        double weight = ContentsMass();
+        double delivery = 0;
+
+            //Bedingungen für die Versandkosten:
+        if ( weight <= 0.1) {
+                delivery = 3.95;
+            }
+            else if (weight > 0.1 && weight <= 1.0) {
+                    delivery = 4.95;
+            }
+                else if (weight> 1.0 && weight <= 5.0 ) {
+                    delivery = 5.95;
+                }
+                         else if (weight > 5.0) {
+                                 delivery = 19.95;
+                         }
+
+
+                         if (GrossAmountProd() >= 500) { //Brutto == Warenwert
+                            delivery = 0;}
+
+        return delivery;
+    }
+
+
+    public double taxDelivery(){
+            double delivery = deliveryCost ();
+
+            double tax7perc = 0;        // grosstax is 7%  which means: 1/3rd of 19,95
+            double tax19perc = 0;       // grosstax is 19%  which means: 2/3rd of 19,95
+
+            for (Products prod : cartContents) {
+                if (prod.getNetWorth() == 7) {
+                    tax7perc += prod.getGrossPrice();
+                }
+                else if (prod.getNetWorth() == 19) {
+                    tax19perc += prod.getGrossPrice();
+                }
+            }
+            //Prozentuale Anteile am gesamten Bruttopreis:
+            double gross = GrossAmountProd ();
+
+
+            if (gross == 0) { //Um Teilung durch 0 zu verhindern (wenn Warenkorb leer)
+                return 0;
+            }
+
+            //Anteile am Versand:
+            double delivery7 = delivery * (tax7perc / gross);
+            double delivery19 = delivery * (tax19perc / gross);
+
+            //MwSt vom Versand:
+            double taxDelivery7 = delivery7- (delivery7/ 1.07);
+            double taxDelivery19 = delivery19 - (delivery19 / 1.19);
+
+            return taxDelivery7 + taxDelivery19;
+        }
+
+
+
+    public double wholeAmount () {
+
+        double amount = GrossAmountProd () + deliveryCost () + taxDelivery();
+
+
+        return amount;
+    }
 
 }