Added GameSetupScene.java class

UI

src/main/java/View/GameSetupScene.java

@@ -0,0 +1,165 @@
+package View;
+
+import javafx.geometry.Insets;
+import javafx.scene.Scene;
+import javafx.scene.control.*;
+import javafx.scene.layout.VBox;
+import javafx.scene.layout.HBox;
+import javafx.stage.FileChooser;
+import javafx.stage.Stage;
+import Controller.StockFileHandler;
+import Model.Exchange;
+import Model.Stock;
+
+import java.io.File;
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.function.Consumer;
+
+public class GameSetupScene {
+    private Scene scene;
+    private Consumer<StartGameData> onGameStart;
+    private File selectedFile;
+    private Label fileLabel;
+
+    public GameSetupScene(Consumer<StartGameData> onGameStart) {
+        this.onGameStart = onGameStart;
+        this.scene = createScene();
+    }
+
+    private Scene createScene() {
+        VBox root = new VBox(15);
+        root.setPadding(new Insets(20));
+        root.setStyle("-fx-font-family: Arial; -fx-font-size: 12;");
+
+        // title
+        Label titleLabel = new Label("Stock Trading Game");
+        titleLabel.setStyle("-fx-font-size: 24; -fx-font-weight: bold;");
+        root.getChildren().add(titleLabel);
+
+        // player name
+        HBox nameBox = new HBox(10);
+        Label nameLabel = new Label("Player Name:");
+        nameLabel.setMinWidth(120);
+        TextField nameField = new TextField();
+        nameField.setPromptText("Enter your name");
+        nameBox.getChildren().addAll(nameLabel, nameField);
+
+        // starting capital
+        HBox capitalBox = new HBox(10);
+        Label capitalLabel = new Label("Starting Capital:");
+        capitalLabel.setMinWidth(120);
+        TextField capitalField = new TextField();
+        capitalField.setPromptText("Enter amount (e.g., 10000)");
+        capitalBox.getChildren().addAll(capitalLabel, capitalField);
+
+        // file selection
+        HBox fileBox = new HBox(10);
+        Label fileSelectLabel = new Label("Stock Data File:");
+        fileSelectLabel.setMinWidth(120);
+        fileLabel = new Label("No file selected");
+        fileLabel.setStyle("-fx-text-fill: #666666;");
+        Button browseButton = new Button("Browse");
+        browseButton.setOnAction(e -> selectFile());
+        fileBox.getChildren().addAll(fileSelectLabel, fileLabel, browseButton);
+
+        // button box
+        HBox buttonBox = new HBox(10);
+        buttonBox.setPadding(new Insets(20, 0, 0, 0));
+
+        Button startButton = new Button("Start Game");
+        startButton.setStyle("-fx-font-size: 14; -fx-padding: 10 40 10 40;");
+        startButton.setOnAction(e -> {
+            String name = nameField.getText().trim();
+            String capitalStr = capitalField.getText().trim();
+
+            if (name.isEmpty()) {
+                showAlert("Validation Error", "Please enter a player name");
+                return;
+            }
+
+            if (capitalStr.isEmpty()) {
+                showAlert("Validation Error", "Please enter starting capital");
+                return;
+            }
+
+            if (selectedFile == null) {
+                showAlert("Validation Error", "Please select a stock data file");
+                return;
+            }
+
+            try {
+                BigDecimal capital = new BigDecimal(capitalStr);
+                if (capital.compareTo(BigDecimal.ZERO) <= 0) {
+                    showAlert("Validation Error", "Starting capital must be greater than 0");
+                    return;
+                }
+
+                StockFileHandler fileHandler = new StockFileHandler();
+                List<Stock> stocks = fileHandler.loadStocksFromFile(selectedFile.getAbsolutePath());
+
+                if (stocks.isEmpty()) {
+                    showAlert("Error", "No stocks found in the selected file");
+                    return;
+                }
+
+                Exchange exchange = new Exchange("Main Exchange", stocks);
+                onGameStart.accept(new StartGameData(name, capital, exchange));
+            } catch (NumberFormatException ex) {
+                showAlert("Validation Error", "Starting capital must be a valid number");
+            } catch (Exception ex) {
+                showAlert("Error", "Failed to load file: " + ex.getMessage());
+            }
+        });
+
+        Button exitButton = new Button("Exit");
+        exitButton.setOnAction(e -> System.exit(0));
+        buttonBox.getChildren().addAll(startButton, exitButton);
+
+        root.getChildren().addAll(nameBox, capitalBox, fileBox, buttonBox);
+
+        ScrollPane scrollPane = new ScrollPane(root);
+        scrollPane.setFitToWidth(true);
+        return new Scene(scrollPane, 600, 400);
+    }
+
+    private void selectFile() {
+        FileChooser fileChooser = new FileChooser();
+        fileChooser.setTitle("Select Stock Data File");
+        fileChooser.getExtensionFilters().addAll(
+            new FileChooser.ExtensionFilter("CSV Files", "*.csv"),
+            new FileChooser.ExtensionFilter("All Files", "*.*")
+        );
+
+        File file = fileChooser.showOpenDialog(new Stage());
+        if (file != null) {
+            selectedFile = file;
+            fileLabel.setText(file.getName());
+            fileLabel.setStyle("-fx-text-fill: #000000;");
+        }
+    }
+
+    private void showAlert(String title, String message) {
+        Alert alert = new Alert(Alert.AlertType.WARNING);
+        alert.setTitle(title);
+        alert.setHeaderText(null);
+        alert.setContentText(message);
+        alert.showAndWait();
+    }
+
+    public Scene getScene() {
+        return scene;
+    }
+
+    public static class StartGameData {
+        public final String playerName;
+        public final BigDecimal startingCapital;
+        public final Exchange exchange;
+
+        public StartGameData(String playerName, BigDecimal startingCapital, Exchange exchange) {
+            this.playerName = playerName;
+            this.startingCapital = startingCapital;
+            this.exchange = exchange;
+        }
+    }
+}