InCamp Task

oop-workshop.iml

@@ -21,5 +21,27 @@
       </library>
     </orderEntry>
     <orderEntry type="library" name="org.hamcrest:hamcrest-core:2.1" level="project" />
+    <orderEntry type="module-library" scope="TEST">
+      <library name="JUnit4">
+        <CLASSES>
+          <root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.12/junit-4.12.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="module-library" scope="TEST">
+      <library name="JUnit5.3">
+        <CLASSES>
+          <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-api/5.4.0/junit-jupiter-api-5.4.0.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-commons/1.4.0/junit-platform-commons-1.4.0.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
   </component>
 </module>

src/checkout/Category.java

@@ -1,5 +1,6 @@
 package checkout;
 
 public enum Category {
-    MILK
+    MILK,
+    BRED
 }

src/checkout/Check.java

@@ -5,32 +5,59 @@
 
 public class Check {
     private List<Product> products = new ArrayList<>();
+    private List<Offer> offers = new ArrayList<>();
     private int points = 0;
-
-    public int getTotalCost() {
-        int totalCost = 0;
+    private double discount = 0;
+    public int getTotalPrice() {
+        int totalPrice = 0;
         for (Product product : this.products) {
-            totalCost += product.price;
+            totalPrice += product.price;
         }
+        return totalPrice;
+    }
+    public double getTotalCost() {
+        double totalCost = 0;
+        totalCost += getTotalPrice();
+        totalCost -= discount;
         return totalCost;
     }
-
     void addProduct(Product product) {
         products.add(product);
     }
 
     public int getTotalPoints() {
-        return getTotalCost() + points;
+        return getTotalPrice() + points;
     }
 
     void addPoints(int points) {
         this.points += points;
     }
 
+    void useOffers(Check check) {
+        for (Offer offer: offers) {
+            offer.apply(check);
+        }
+    }
+
+    void addOffer(Offer offer) {
+        offers.add(offer);
+    }
+
     int getCostByCategory(Category category) {
         return products.stream()
                 .filter(p -> p.category == category)
                 .mapToInt(p -> p.price)
                 .reduce(0, (a, b) -> a + b);
     }
+
+    int getCostByOutlet(Outlet outlet) {
+        return products.stream()
+                .filter(p -> p.outlet == outlet)
+                .mapToInt(p -> p.price)
+                .reduce(0, (a,b) -> a + b);
+    }
+
+    void addDiscount(double discount) {
+        this.discount += discount;
+    }
 }

src/checkout/CheckoutService.java

@@ -1,5 +1,8 @@
 package checkout;
 
+import java.util.ArrayList;
+import java.util.List;
+
 public class CheckoutService {
 
     private Check check;
@@ -16,23 +19,13 @@ public void addProduct(Product product) {
     }
 
     public Check closeCheck() {
+        check.useOffers(check);
         Check closedCheck = check;
         check = null;
         return closedCheck;
     }
 
     public void useOffer(Offer offer) {
-        offer.apply(check);
-        if (offer instanceof FactorByCategoryOffer) {
-            FactorByCategoryOffer fbOffer = (FactorByCategoryOffer) offer;
-            int points = check.getCostByCategory(fbOffer.category);
-            check.addPoints(points * (fbOffer.factor - 1));
-        } else {
-            if (offer instanceof AnyGoodsOffer) {
-                AnyGoodsOffer agOffer = (AnyGoodsOffer) offer;
-                if (agOffer.totalCost <= check.getTotalCost())
-                    check.addPoints(agOffer.points);
-            }
-        }
+        check.addOffer(offer);
     }
 }

src/checkout/Condition.java

@@ -0,0 +1,7 @@
+package checkout;
+
+public interface Condition {
+    boolean checkCondition(Check check);
+
+    int getCostForCondition(Check check);
+}

src/checkout/ConditionByCategory.java

@@ -0,0 +1,22 @@
+package checkout;
+
+public class ConditionByCategory implements Condition {
+    Category category;
+    public ConditionByCategory(Category category) {
+        this.category = category;
+    }
+
+    @Override
+    public boolean checkCondition(Check check) {
+        if(check.getCostByCategory(category) != 0){
+            return true;
+        }else{
+            return false;
+        }
+    }
+
+    @Override
+    public int getCostForCondition(Check check) {
+        return check.getCostByCategory(category);
+    }
+}

src/checkout/ConditionByOutlet.java

@@ -0,0 +1,22 @@
+package checkout;
+
+public class ConditionByOutlet implements Condition {
+    Outlet outlet;
+    public ConditionByOutlet(Outlet outlet) {
+        this.outlet = outlet;
+    }
+
+    @Override
+    public boolean checkCondition(Check check) {
+        if(check.getCostByOutlet(outlet) != 0){
+            return true;
+        }else{
+            return false;
+        }
+    }
+
+    @Override
+    public int getCostForCondition(Check check) {
+        return check.getCostByOutlet(outlet);
+    }
+}

src/checkout/ConditionOfTotalCost.java

@@ -0,0 +1,19 @@
+package checkout;
+
+public class ConditionOfTotalCost implements Condition {
+    int totalCost;
+    public ConditionOfTotalCost(int totalCost) {
+        this.totalCost = totalCost;
+    }
+
+    public boolean checkCondition(Check check) {
+        if (check.getTotalCost() < totalCost) {
+            return false;
+        }else{
+            return true;
+        }
+    }
+    public int getCostForCondition(Check check) {
+        return check.getTotalPrice();
+    }
+}

src/checkout/DiscountReward.java

@@ -0,0 +1,12 @@
+package checkout;
+
+public class DiscountReward implements Reward{
+    int discount;
+    public DiscountReward(int discount) {
+        this.discount = discount;
+    }
+
+    public void applyReward(Check check, int cost){
+        check.addDiscount(cost*discount/100.0);
+    }
+}

src/checkout/FactorReward.java

@@ -0,0 +1,12 @@
+package checkout;
+
+public class FactorReward implements Reward {
+    int factor;
+    public FactorReward(int factor) {
+        this.factor = factor;
+    }
+
+    public void applyReward(Check check, int cost){
+        check.addPoints(cost*(factor-1));
+    }
+}

src/checkout/FlatReward.java

@@ -0,0 +1,13 @@
+package checkout;
+
+public class FlatReward implements Reward{
+    int flat;
+    public FlatReward(int flat) {
+        this.flat = flat;
+    }
+
+    public void applyReward(Check check, int cost){
+        check.addPoints(flat);
+    }
+}
+

src/checkout/Offer.java

@@ -1,5 +1,22 @@
 package checkout;
 
-public abstract class Offer {
-    public abstract void apply(Check check);
+import java.time.LocalDate;
+
+public class Offer {
+    private LocalDate expiredDate;
+    private Reward rewardType;
+    private Condition conditionType;
+
+
+    public Offer(LocalDate expiredDate, Reward rewardType, Condition conditionType) {
+        this.expiredDate = expiredDate;
+        this.rewardType = rewardType;
+        this.conditionType = conditionType;
+    }
+
+    public void apply(Check check) {
+        if(expiredDate.isAfter(LocalDate.now()) && conditionType.checkCondition(check)){
+            rewardType.applyReward(check, conditionType.getCostForCondition(check));
+        }
+    }
 }

src/checkout/Outlet.java

@@ -0,0 +1,7 @@
+package checkout;
+
+public enum Outlet {
+    PEPSI,
+    ROSHEN,
+    LAYS
+}

src/checkout/Product.java

@@ -4,14 +4,16 @@ public class Product {
     final int price;
     final String name;
     Category category;
+    Outlet outlet;
 
-    public Product(int price, String name, Category category) {
+    public Product(int price, String name, Category category, Outlet outlet) {
         this.price = price;
         this.name = name;
         this.category = category;
+        this.outlet = outlet;
     }
 
     public Product(int price, String name) {
-        this(price, name, null);
+        this(price, name, null, null);
     }
 }

src/checkout/Reward.java

@@ -0,0 +1,5 @@
+package checkout;
+
+public interface Reward {
+    void applyReward(Check check, int cost) ;
+}