Merge pull request #162 from Team-40-IDATT2003/161-transaction-report…

…-when-buyingselling

161 transaction report when buyingselling

src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/engine/Exchange.java

@@ -298,7 +298,7 @@ public Transaction sell(BigDecimal amount,
     List<Share> matchingShares = player.getPortfolio().getShares(stockSymbol);
 
     if (matchingShares.isEmpty()) {
-      throw new IllegalArgumentException("Player does not own any shares of this stock!");
+      throw new IllegalArgumentException("No owned shares found of this stock!");
     }
 
     BigDecimal totalOwned = matchingShares.stream()

src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/view/widgets/dashboard/DashBoardController.java

@@ -1,6 +1,7 @@
 package edu.ntnu.idi.idatt2003.g40.mappe.view.widgets.dashboard;
 
 import edu.ntnu.idi.idatt2003.g40.mappe.engine.Exchange;
+import edu.ntnu.idi.idatt2003.g40.mappe.exceptions.NotEnoughMoneyException;
 import edu.ntnu.idi.idatt2003.g40.mappe.model.*;
 import edu.ntnu.idi.idatt2003.g40.mappe.service.PurchaseCalculator;
 import edu.ntnu.idi.idatt2003.g40.mappe.service.SaleCalculator;
@@ -244,29 +245,39 @@ protected void initInteractions() {
       if (Validator.NOT_EMPTY.isValid(getViewElement().getQuantityInputField().getText())
           && Float.parseFloat(getViewElement().getQuantityInputField().getText()) > 0) {
         BigDecimal amountToBuy = new BigDecimal(getViewElement().getQuantityInputField().getText());
-        Transaction purchase = exchange.buy(
-                getViewElement().getCurrentStock().getSymbol(),
-                amountToBuy,
-                player
-        );
-        if (purchase.isCommited()) {
-          getViewElement().addOwnedShares(purchase.getShare().getQuantity().floatValue());
-          updatePreviews();
+        try {
+          Transaction purchase = exchange.buy(
+                  getViewElement().getCurrentStock().getSymbol(),
+                  amountToBuy,
+                  player
+          );
+          if (purchase.isCommited()) {
+            getViewElement().addOwnedShares(purchase.getShare().getQuantity().floatValue());
+            displayTransactionReport(purchase, "Purchase successful!", null);
+            updatePreviews();
+          }
+        } catch (NotEnoughMoneyException e) {
+          displayTransactionReport(null, "Purchase failed!", e.getMessage());
         }
       }
     });
 
     getViewElement().setOnAction(DashBoardActions.SELL_SHARES, () -> {
       if (Validator.NOT_EMPTY.isValid(getViewElement().getQuantityInputField().getText())
           && Float.parseFloat(getViewElement().getQuantityInputField().getText()) > 0) {
-        Transaction sale = exchange.sell(
-                new BigDecimal(getViewElement().getQuantityInputField().getText()),
-                getViewElement().getCurrentStock().getSymbol(),
-                player);
+        try {
+          Transaction sale = exchange.sell(
+                  new BigDecimal(getViewElement().getQuantityInputField().getText()),
+                  getViewElement().getCurrentStock().getSymbol(),
+                  player);
 
           if(sale.isCommited()) {
             getViewElement().addOwnedShares(-sale.getShare().getQuantity().floatValue());
+            displayTransactionReport(sale, "Sale successful!", null);
             updatePreviews();
+          }
+        } catch (IllegalArgumentException e) {
+          displayTransactionReport(null, "Sale failed!", e.getMessage());
         }
       }
     });
@@ -379,7 +390,33 @@ public <T> void handleEvent(final EventData<T> data) {
                 player.getPortfolio().getTotalShareQuantityBySymbol(s.getSymbol()).floatValue()
         );
       }
-
     updatePreviews();
   }
+
+  /**
+   * Method for displaying a report after performing a transaction attempt (buy/sell).
+   *
+   * @param transaction the transaction that occurred, or null if an error stopped execution.
+   * @param title       the title header of the dialog window.
+   * @param errorMsg    the error message to show if the transaction failed.
+   * */
+  public void displayTransactionReport(final Transaction transaction, final String title, final String errorMsg) {
+    if (transaction != null && transaction.isCommited()) {
+      var calc = transaction.getCalculator();
+      float tax = calc.calculateTax().floatValue();
+
+      getViewElement().showTransactionReport(
+              title,
+              transaction.getShare().getStock().getSymbol(),
+              transaction.getShare().getQuantity().floatValue(),
+              calc.calculateGross().floatValue(),
+              calc.calculateCommission().floatValue(),
+              tax,
+              calc.calculateTotal().floatValue(),
+              null
+      );
+    } else {
+      getViewElement().showTransactionReport(title, "", 0f, 0f, 0f, 0f, 0f, errorMsg);
+    }
+  }
 }

src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/view/widgets/dashboard/DashBoardView.java

@@ -12,7 +12,10 @@
 import javafx.scene.chart.NumberAxis;
 import javafx.scene.chart.XYChart;
 import javafx.scene.control.Button;
+import javafx.scene.control.ButtonType;
 import javafx.scene.control.ComboBox;
+import javafx.scene.control.Dialog;
+import javafx.scene.control.DialogPane;
 import javafx.scene.control.Label;
 import javafx.scene.control.ScrollPane;
 import javafx.scene.control.Separator;
@@ -662,4 +665,65 @@ private String formatShares(final float amount) {
     String formatted = String.format(java.util.Locale.US, "%.3f", amount);
     return formatted.replaceAll("0+$", "").replaceAll("\\.$", "");
   }
+
+  /**
+   * Displays a clean transaction report pop-up detailing the financial breakdown.
+   *
+   * @param title         The title of the dialog box
+   *                      (e.g., "Purchase Confirmed").
+   * @param symbol        The stock ticker symbol.
+   * @param qty           The amount of shares processed.
+   * @param gross         The gross value of the transaction.
+   * @param commission    The commission fee charged.
+   * @param tax           The capital gains tax charged.
+   * @param total         The net total amount.
+   * @param errorMessage  Optional error message if transaction did not
+   *                      succesfully commit.
+   */
+  public void showTransactionReport(final String title,
+                                    final String symbol,
+                                    final float qty,
+                                    final float gross,
+                                    final float commission,
+                                    final float tax,
+                                    final float total,
+                                    final String errorMessage) {
+    Dialog<Void> dialog = new Dialog<>();
+    dialog.setTitle(title);
+
+    DialogPane dialogPane = dialog.getDialogPane();
+    dialogPane.getButtonTypes().add(ButtonType.CLOSE);
+
+    //NOTE: Requires hard coding styling due to DialogPane behavior.
+    VBox container = new VBox(10);
+    container.setStyle("-fx-padding: 20; -fx-min-width: 320;");
+
+    if (errorMessage != null && !errorMessage.isEmpty()) {
+      Label errorLabel = new Label(errorMessage);
+      errorLabel.setStyle("-fx-text-fill: red; -fx-font-weight: bold; -fx-font-size: 14px;");
+      container.getChildren().add(errorLabel);
+    } else {
+      Label headerLabel = new Label(symbol + " Transaction Summary");
+      headerLabel.setStyle("-fx-font-weight: bold; -fx-font-size: 14px;");
+      container.getChildren().addAll(headerLabel, new Separator());
+
+      String[][] rows = {
+              {"Quantity:", String.format("%.3f", qty)},
+              {"Gross:", String.format("%.2f NOK", gross)},
+              {"Tax:", String.format("%.2f NOK", tax)},
+              {"Commission fee:", String.format("%.2f NOK", commission)},
+              {"Total:", String.format("%.2f NOK", total)}
+      };
+
+      for (String[] rowData : rows) {
+        Region spacer = new Region();
+        HBox.setHgrow(spacer, Priority.ALWAYS);
+        HBox row = new HBox(new Label(rowData[0]), spacer, new Label(rowData[1]));
+        container.getChildren().add(row);
+      }
+    }
+
+    dialogPane.setContent(container);
+    dialog.showAndWait();
+  }
 }