Feat/java fx boilerplate

pom.xml

@@ -48,7 +48,7 @@
                 <artifactId>javafx-maven-plugin</artifactId>
                 <version>0.0.8</version>
                 <configuration>
-                    <mainClass>temppackage.Main</mainClass>
+                    <mainClass>millions.App</mainClass>
                 </configuration>
             </plugin>
             <plugin>

src/main/java/millions/App.java

@@ -0,0 +1,25 @@
+package millions;
+
+import javafx.application.Application;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+import millions.controller.GameController;
+import millions.view.StartView;
+
+public class App extends Application {
+
+  @Override
+  public void start(Stage stage) {
+    GameController controller = new GameController();
+    StartView startView = new StartView(stage);
+
+    Scene scene = new Scene(startView, 400, 350);
+    stage.setTitle("Millions");
+    stage.setScene(scene);
+    stage.show();
+  }
+
+  public static void main(String[] args) {
+    launch(args);
+  }
+}

src/main/java/millions/controller/GameController.java

@@ -0,0 +1,33 @@
+package millions.controller;
+
+import java.math.BigDecimal;
+import java.nio.file.Path;
+import java.util.List;
+import millions.controller.fileIO.CSVStockFileParser;
+import millions.controller.fileIO.StockFileReader;
+import millions.model.Exchange;
+import millions.model.Player;
+import millions.model.Stock;
+
+public class GameController {
+  private Player player;
+  private Exchange exchange;
+
+  public void startGame(String name, BigDecimal startingMoney, Path stockFilePath) {
+    StockFileReader reader = new StockFileReader(stockFilePath);
+    List<String> lines = reader.readFile();
+    CSVStockFileParser parser = new CSVStockFileParser(lines);
+    List<Stock> stocks = parser.parse();
+
+    player = new Player(name, startingMoney);
+    exchange = new Exchange("Exchange", stocks);
+  }
+
+  public Player getPlayer() {
+    return player;
+  }
+
+  public Exchange getExchange() {
+    return exchange;
+  }
+}

src/main/java/millions/model/Exchange.java

@@ -2,6 +2,7 @@
 
 import java.math.BigDecimal;
 import java.math.RoundingMode;
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -20,6 +21,7 @@ public class Exchange {
   private Random random = new Random();
   private final TransactionFactory purchaseFactory = new PurchaseFactory();
   private final TransactionFactory saleFactory = new SaleFactory();
+  private final List<ExchangeListener> listeners = new ArrayList<>();
 
   public Exchange(String name, List<Stock> stockList) {
     this.name = name;
@@ -47,6 +49,7 @@ public Transaction buy(String symbol, Player player, BigDecimal quantity) {
 
     Transaction purchase = purchaseFactory.createTransaction(shareToBuy, weekNumber);
     purchase.commit(player);
+    notifyTransactionCompleted(purchase);
 
     return purchase;
   }
@@ -59,6 +62,7 @@ public Transaction sell(Share share, Player player) {
     Transaction sale = saleFactory.createTransaction(share, weekNumber);
 
     sale.commit(player);
+    notifyTransactionCompleted(sale);
     return sale;
   }
 
@@ -107,5 +111,26 @@ public void advance() {
               .setScale(2, RoundingMode.HALF_UP));
       // RoundingMode from AI suggestion
     }
+    notifyWeekAdvanced();
+  }
+
+  public void addListener(ExchangeListener listener) {
+    listeners.add(listener);
+  }
+
+  public void removeListener(ExchangeListener listener) {
+    listeners.remove(listener);
+  }
+
+  private void notifyWeekAdvanced() {
+    for (ExchangeListener listener : listeners) {
+      listener.onWeekAdvanced(weekNumber);
+    }
+  }
+
+  private void notifyTransactionCompleted(Transaction transaction) {
+    for (ExchangeListener listener : listeners) {
+      listener.onTransactionCompleted(transaction);
+    }
   }
 }

src/main/java/millions/model/ExchangeListener.java

@@ -0,0 +1,8 @@
+package millions.model;
+
+public interface ExchangeListener {
+
+  void onWeekAdvanced(int newWeek);
+
+  void onTransactionCompleted(Transaction transaction);
+}

src/main/java/millions/model/Player.java

@@ -2,6 +2,8 @@
 
 import java.math.BigDecimal;
 import java.math.RoundingMode;
+import java.util.ArrayList;
+import java.util.List;
 
 public class Player {
   private String name;
@@ -11,6 +13,7 @@ public class Player {
   private TransactionArchive transactionArchive;
   // temporary attribute until a better solution is found
   public int weeksTraded;
+  private final List<PlayerListener> listeners = new ArrayList<>();
 
   public Player(String name, BigDecimal startingMoney) {
     this.name = name;
@@ -33,13 +36,15 @@ public void addMoney(BigDecimal amount) {
       throw new IllegalArgumentException("Amount cannot be null or negative");
     }
     this.money = this.money.add(amount);
+    notifyMoneyChanged();
   }
 
   public void withdrawMoney(BigDecimal amount) {
     if (amount == null || amount.compareTo(BigDecimal.ZERO) < 0) {
       throw new IllegalArgumentException("Amount cannot be null or negative");
     }
     this.money = this.money.subtract(amount);
+    notifyMoneyChanged();
   }
 
   public String getStatus() {
@@ -70,11 +75,49 @@ public Portfolio getPortfolio() {
     return this.portfolio;
   }
 
+  public void addShareToPortfolio(Share share) {
+    this.portfolio.addShare(share);
+    notifyPortfolioChanged();
+    notifyStatusChanged();
+  }
+
+  public void removeShareFromPortfolio(Share share) {
+    this.portfolio.removeShare(share);
+    notifyPortfolioChanged();
+    notifyStatusChanged();
+  }
+
   public BigDecimal getNetWorth() {
     return this.money.add(this.portfolio.getNetWorth());
   }
 
   public TransactionArchive getTransactionArchive() {
     return this.transactionArchive;
   }
+
+  public void addListener(PlayerListener listener) {
+    listeners.add(listener);
+  }
+
+  public void removeListener(PlayerListener listener) {
+    listeners.remove(listener);
+  }
+
+  private void notifyMoneyChanged() {
+    for (PlayerListener listener : listeners) {
+      listener.onMoneyChanged(money);
+    }
+  }
+
+  private void notifyPortfolioChanged() {
+    for (PlayerListener listener : listeners) {
+      listener.onPortfolioChanged();
+    }
+  }
+
+  private void notifyStatusChanged() {
+    for (PlayerListener listener : listeners) {
+      listener.onStatusChanged(getStatus());
+    }
+  }
 }

src/main/java/millions/model/PlayerListener.java

@@ -0,0 +1,12 @@
+package millions.model;
+
+import java.math.BigDecimal;
+
+public interface PlayerListener {
+
+  void onMoneyChanged(BigDecimal newBalance);
+
+  void onPortfolioChanged();
+
+  void onStatusChanged(String newStatus);
+}

src/main/java/millions/model/Purchase.java

@@ -18,7 +18,8 @@ public void commit(Player player) {
       throw new IllegalStateException("Not enought money");
     }
     player.withdrawMoney(getCalculator().calculateTotal());
-    player.getPortfolio().addShare(getShare());
+    // Don't reach directly to the portefolio object
+    player.addShareToPortfolio(getShare());
     player.getTransactionArchive().add(this);
     setCommitted(true);
   }

src/main/java/millions/model/Sale.java

@@ -18,7 +18,7 @@ public void commit(Player player) {
       throw new IllegalStateException("Does not own the share");
     }
     player.addMoney(getCalculator().calculateTotal());
-    player.getPortfolio().removeShare(getShare());
+    player.removeShareFromPortfolio(getShare());
     player.getTransactionArchive().add(this);
     setCommitted(true);
   }

src/main/java/millions/model/factories/PurchaseFactory.java

@@ -0,0 +1,10 @@
+package millions.model.factories;
+
+import millions.model.Purchase;
+import millions.model.Share;
+
+public class PurchaseFactory extends TransactionFactory {
+  public Purchase createTransaction(Share share, int week) {
+    return new Purchase(share, week);
+  }
+}

src/main/java/millions/model/factories/SaleFactory.java

@@ -0,0 +1,10 @@
+package millions.model.factories;
+
+import millions.model.Sale;
+import millions.model.Share;
+
+public class SaleFactory extends TransactionFactory {
+  public Sale createTransaction(Share share, int week) {
+    return new Sale(share, week);
+  }
+}

src/main/java/millions/model/factories/TransactionFactory.java

@@ -0,0 +1,8 @@
+package millions.model.factories;
+
+import millions.model.Share;
+import millions.model.Transaction;
+
+public abstract class TransactionFactory {
+  public abstract Transaction createTransaction(Share share, int week);
+}

src/main/java/millions/view/StartView.java

@@ -0,0 +1,94 @@
+package millions.view;
+
+import java.io.File;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.VBox;
+import javafx.stage.FileChooser;
+import javafx.stage.Stage;
+
+public class StartView extends VBox {
+
+  private TextField nameField;
+  private TextField startingAmountField;
+  private File selectedFile;
+  private Button filepickerButton;
+  private Button startButton;
+
+  public StartView(Stage stage) {
+    setAlignment(Pos.CENTER);
+    setSpacing(12);
+    setPadding(new Insets(40));
+
+    nameField = new TextField();
+    nameField.setPromptText("Player name:");
+    nameField.setMaxWidth(250);
+    nameField.textProperty().addListener((obs, oldVal, newVal) -> checkStartButtonValid());
+
+    startingAmountField = new TextField();
+    startingAmountField.setPromptText("Starting amount:");
+    startingAmountField.setMaxWidth(250);
+    startingAmountField
+        .textProperty()
+        .addListener((obs, oldVal, newVal) -> checkStartButtonValid());
+
+    filepickerButton = new Button();
+    filepickerButton.setText("Pick file");
+    filepickerButton.setMaxWidth(250);
+    filepickerButton.setOnAction(
+        e -> {
+          FileChooser chooser = new FileChooser();
+          chooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("CSV files", "*.csv"));
+          chooser.setTitle("Select stock CSV file");
+          File file = chooser.showOpenDialog(stage);
+
+          if (file != null) {
+            selectedFile = file;
+            filepickerButton.setText(file.getName());
+          }
+        });
+
+    startButton = new Button("Start game");
+    startButton.setDisable(true);
+
+    Label title = new Label("Millions");
+    title.setStyle("-fx-font-size: 32px; -fx-font-weight: bold;");
+
+    getChildren().addAll(title, nameField, startingAmountField, filepickerButton, startButton);
+  }
+
+  private void checkStartButtonValid() {
+    boolean valid = true;
+
+    if (nameField.getText().isBlank()) {
+      valid = false;
+    }
+
+    try {
+      Integer.valueOf(startingAmountField.getText());
+    } catch (NumberFormatException e) {
+      valid = false;
+    }
+
+    startButton.setDisable(!valid);
+  }
+
+  public String getName() {
+    return nameField.getText();
+  }
+
+  public String getStartingAmount() {
+    return startingAmountField.getText();
+  }
+
+  public File getSelectedFile() {
+    return selectedFile;
+  }
+
+  public Button getStartButton() {
+    return startButton;
+  }
+}