스피드런 해보기 6시간25분

src/main/java/vendingmachine/Application.java

@@ -1,7 +1,18 @@
 package vendingmachine;
 
+import vendingmachine.controller.MachineController;
+import vendingmachine.model.Coins;
+import vendingmachine.view.MachineView;
+
+import java.util.HashMap;
+
 public class Application {
     public static void main(String[] args) {
         // TODO: 프로그램 구현
+        MachineView machineView = new MachineView();
+        CoinGenerator coinGenerator = new CoinGenerator();
+        Coins coins = new Coins(new HashMap<>());
+        MachineController machineController = new MachineController(machineView, coinGenerator);
+        machineController.run();
     }
 }

src/main/java/vendingmachine/CoinGenerator.java

@@ -0,0 +1,39 @@
+package vendingmachine;
+
+import camp.nextstep.edu.missionutils.Randoms;
+import vendingmachine.model.Coin;
+import vendingmachine.model.Coins;
+
+import java.util.*;
+
+public class CoinGenerator {
+    private Map<Integer, Integer> emptyCoins(){
+        Map<Integer, Integer> map = new HashMap<>();
+        map.put(Coin.COIN_500.getAmount(), 0);
+        map.put(Coin.COIN_100.getAmount(), 0);
+        map.put(Coin.COIN_50.getAmount(), 0);
+        map.put(Coin.COIN_10.getAmount(), 0);
+        return map;
+    }
+
+    private List<Integer> coinAmountNames(){
+        List<Integer> coinAmountNames = new ArrayList<>();
+        coinAmountNames.add(Coin.COIN_500.getAmount());
+        coinAmountNames.add(Coin.COIN_100.getAmount());
+        coinAmountNames.add(Coin.COIN_50.getAmount());
+        coinAmountNames.add(Coin.COIN_10.getAmount());
+        return coinAmountNames;
+    }
+
+    public Coins generateCoins(int money){
+        Map<Integer, Integer> map = emptyCoins();
+        while(money>0){
+            int pickNum = Randoms.pickNumberInList(coinAmountNames());
+            if(pickNum<=money){
+                map.put(pickNum, map.get(pickNum)+1);
+                money -= pickNum;
+            }
+        }
+        return new Coins(map);
+    }
+}

src/main/java/vendingmachine/controller/MachineController.java

@@ -0,0 +1,34 @@
+package vendingmachine.controller;
+
+import camp.nextstep.edu.missionutils.Console;
+import vendingmachine.CoinGenerator;
+import vendingmachine.model.Coins;
+import vendingmachine.model.Products;
+import vendingmachine.view.MachineView;
+
+import java.util.List;
+
+public class MachineController {
+    private final MachineView machineView;
+    private final CoinGenerator coinGenerator;
+
+    public MachineController(MachineView machineView, CoinGenerator coinGenerator) {
+        this.machineView = machineView;
+        this.coinGenerator = coinGenerator;
+    }
+
+    public void run() {
+        Coins coins = makeCoins();
+        Products products = machineView.productNameAndAmount();
+        int money = machineView.insertProducts(products, coins);
+    }
+
+    public Coins makeCoins(){
+        machineView.inputChange();
+        int change = machineView.change();
+        Coins coins = coinGenerator.generateCoins(change);
+        List<Integer> quantitys = coins.getQuantitys();
+        machineView.outputCoins(quantitys);
+        return coins;
+    }
+}

src/main/java/vendingmachine/Coin.java → src/main/java/vendingmachine/model/Coin.java

@@ -1,4 +1,4 @@
-package vendingmachine;
+package vendingmachine.model;
 
 public enum Coin {
     COIN_500(500),
@@ -13,4 +13,7 @@ public enum Coin {
     }
 
     // 추가 기능 구현
+    public int getAmount(){
+        return this.amount;
+    }
 }

src/main/java/vendingmachine/model/Coins.java

@@ -0,0 +1,26 @@
+package vendingmachine.model;
+
+import java.util.*;
+
+public class Coins {
+    private final Map<Coin, Integer> coins;
+
+    public Coins(Map<Integer, Integer> coins) {
+        Map<Coin, Integer> map = new HashMap<>();
+        for(Integer key: coins.keySet()){
+            if(key==500) map.put(Coin.COIN_500, coins.get(key));
+            if(key==100) map.put(Coin.COIN_100, coins.get(key));
+            if(key==50) map.put(Coin.COIN_50, coins.get(key));
+            if(key==10) map.put(Coin.COIN_10, coins.get(key));
+        }
+        this.coins = map;
+    }
+
+    public Map<Coin, Integer> getCoins(){
+        return new HashMap<>(coins);
+    }
+
+    public List<Integer> getQuantitys(){
+        return Arrays.asList(coins.get(Coin.COIN_500), coins.get(Coin.COIN_100), coins.get(Coin.COIN_50), coins.get(Coin.COIN_10));
+    }
+}

src/main/java/vendingmachine/model/Product.java

@@ -0,0 +1,25 @@
+package vendingmachine.model;
+
+public class Product {
+    private final String name;
+    private final int price;
+    private final int amount;
+
+    public Product(String name, int price, int amount) {
+        this.name = name;
+        this.price = price;
+        this.amount = amount;
+    }
+
+    public int getPrice(){
+        return this.price;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public int getAmount(){
+        return this.amount;
+    }
+}

src/main/java/vendingmachine/model/Products.java

@@ -0,0 +1,38 @@
+package vendingmachine.model;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+
+public class Products {
+    private final List<Product> products;
+
+    public Products(List<Product> products) {
+        this.products = new ArrayList<>(products);
+    }
+
+    public List<Product> getProducts(){
+        return Collections.unmodifiableList(this.products);
+    }
+
+    public int getMinPrice(){
+        int minPrice = (int) 1e8;
+        for(Product product:products){
+            if(product.getPrice()<minPrice) minPrice = product.getPrice();
+        }
+        return minPrice;
+    }
+
+    public int getPrice(String name){
+        Product product = findProduct(name);
+        return product.getPrice();
+    }
+
+    public Product findProduct(String name) {
+        return products.stream().filter(p -> p.getName().equals(name))
+            .findFirst().orElseThrow(
+                IllegalArgumentException::new
+            );
+    }
+}