Completed Level-10

src/main/java/DialogBox.java

@@ -0,0 +1,51 @@
+package duke;
+
+import javafx.geometry.Pos;
+import javafx.scene.control.Label;
+import javafx.scene.image.ImageView;
+import javafx.scene.layout.HBox;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.control.Label;
+import javafx.scene.image.ImageView;
+import javafx.scene.layout.HBox;
+
+public class DialogBox extends HBox {
+
+    private Label text;
+    private ImageView displayPicture;
+
+    public DialogBox(Label l, ImageView iv) {
+        text = l;
+        displayPicture = iv;
+
+        text.setWrapText(true);
+        displayPicture.setFitWidth(100.0);
+        displayPicture.setFitHeight(100.0);
+
+        this.setAlignment(Pos.TOP_RIGHT);
+        this.getChildren().addAll(text, displayPicture);
+    }
+
+    /**
+     * Flips the dialog box such that the ImageView is on the left and text on the right.
+     */
+    private void flip() {
+        this.setAlignment(Pos.TOP_LEFT);
+        ObservableList<Node> tmp = FXCollections.observableArrayList(this.getChildren());
+        FXCollections.reverse(tmp);
+        this.getChildren().setAll(tmp);
+    }
+
+    public static DialogBox getUserDialog(Label l, ImageView iv) {
+        return new DialogBox(l, iv);
+    }
+
+    public static DialogBox getDukeDialog(Label l, ImageView iv) {
+        var db = new DialogBox(l, iv);
+        db.flip();
+        return db;
+    }
+}

src/main/java/Duke.java

@@ -1,23 +1,123 @@
 package duke;
 
+import javafx.application.Application;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.ScrollPane;
+import javafx.scene.control.TextField;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
+import javafx.scene.layout.AnchorPane;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.stage.Stage;
+
+
 /**
  * Application class for Duke.
  */
-public class Duke {
+public class Duke extends Application {
+    private ScrollPane scrollPane;
+    private VBox dialogContainer;
+    private TextField userInput;
+    private Button sendButton;
+    private Scene scene;
+    private Image user = new Image(this.getClass().getResourceAsStream("/resources/DaUser.png"));
+    private Image duke = new Image(this.getClass().getResourceAsStream("/resources/DaDuke.png"));
+
+    private Main main;
+
     /**
      * Main method for Duke.
      * 
      * @param args Arguments entered when main method is executed.
      */
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
-
-        Main main = new Main("../../../data/duke.txt");
-        main.run();
+        Main duke = new Main("data/duke.txt");
+        duke.run();
+    }
+
+    @Override
+    public void start(Stage stage) {
+        //Step 1. Setting up required components
+
+        //The container for the content of the chat to scroll.
+        scrollPane = new ScrollPane();
+        dialogContainer = new VBox();
+        scrollPane.setContent(dialogContainer);
+
+        userInput = new TextField();
+        sendButton = new Button("Send");
+
+        AnchorPane mainLayout = new AnchorPane();
+        mainLayout.getChildren().addAll(scrollPane, userInput, sendButton);
+
+        scene = new Scene(mainLayout);
+
+        stage.setScene(scene);
+        stage.show();
+
+        //Step 2. Formatting the window to look as expected
+        stage.setTitle("Duke");
+        stage.setResizable(false);
+        stage.setMinHeight(600.0);
+        stage.setMinWidth(400.0);
+
+        mainLayout.setPrefSize(400.0, 600.0);
+
+        scrollPane.setPrefSize(385, 535);
+        scrollPane.setHbarPolicy(ScrollPane.ScrollBarPolicy.NEVER);
+        scrollPane.setVbarPolicy(ScrollPane.ScrollBarPolicy.ALWAYS);
+
+        scrollPane.setVvalue(1.0);
+        scrollPane.setFitToWidth(true);
+
+        // You will need to import `javafx.scene.layout.Region` for this. 
+        dialogContainer.setPrefHeight(Region.USE_COMPUTED_SIZE);
+
+        userInput.setPrefWidth(325.0);
+
+        sendButton.setPrefWidth(55.0);
+
+        AnchorPane.setTopAnchor(scrollPane, 1.0);
+
+        AnchorPane.setBottomAnchor(sendButton, 1.0);
+        AnchorPane.setRightAnchor(sendButton, 1.0);
+
+        AnchorPane.setLeftAnchor(userInput , 1.0);
+        AnchorPane.setBottomAnchor(userInput, 1.0);
+
+        main = new Main("data/duke.txt");
+
+        //Part 3. Add functionality to handle user input.
+        sendButton.setOnMouseClicked((event) -> {
+            handleUserInput();
+        });
+
+        userInput.setOnAction((event) -> {
+            handleUserInput();
+        });
+        //Scroll down to the end every time dialogContainer's height changes.
+        dialogContainer.heightProperty().addListener((observable) -> scrollPane.setVvalue(1.0));
+    }
+
+    /**
+     * Iteration 2:
+     * Creates two dialog boxes, one echoing user input and the other containing Duke's reply and then appends them to
+     * the dialog container. Clears the user input after processing.
+     */
+    private void handleUserInput() {
+        Label userText = new Label(userInput.getText());
+        Label dukeText = new Label(getResponse(userInput.getText()));
+        dialogContainer.getChildren().addAll(
+                DialogBox.getUserDialog(userText, new ImageView(user)),
+                DialogBox.getDukeDialog(dukeText, new ImageView(duke))
+        );
+        userInput.clear();
+    }
+
+    private String getResponse(String input) {
+        return main.step(input);
     }
 }

src/main/java/Launcher.java

@@ -0,0 +1,12 @@
+package duke;
+
+import javafx.application.Application;
+
+/**
+ * A launcher class to workaround classpath issues.
+ */
+public class Launcher {
+    public static void main(String[] args) {
+        Application.launch(Duke.class, args);
+    }
+}

src/main/java/Main.java

@@ -1,47 +1,43 @@
 package duke;
 
-import duke.DukeException;
-import duke.Parser;
-import duke.Ui;
-import duke.Storage;
-import duke.TaskList;
+import duke.exception.DukeException;
+import duke.util.Parser;
+import duke.util.Ui;
+import duke.util.Storage;
+import duke.task.TaskList;
 import duke.command.Command;
-import java.util.Scanner;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.util.ArrayList;
 
-/**
- * Main class of Duke.
- * Contains run() method.
- */
 public class Main {
     private Storage storage;
     private TaskList tasks;
     private Ui ui;
 
     /**
-     * Constructor of Main class.
+     * Constructor of Duke class.
      * 
      * @param filePath Path to text file where save data is stored.
      */
     public Main(String filePath) {
-        ui = new Ui();
-        storage = new Storage(filePath);
+        this.ui = new Ui();
+        this.storage = new Storage(filePath);
         try {
-            tasks = storage.load();
+            this.tasks = this.storage.load();
         } catch (DukeException e) {
-            ui.showLoadingError();
-            tasks = new TaskList();
+            this.ui.showLoadingError();
+            this.tasks = new TaskList();
         }
     }
 
     /**
      * Run method of Duke.
      */
     public void run() {
+        String logo = " ____        _        \n"
+                + "|  _ \\ _   _| | _____ \n"
+                + "| | | | | | | |/ / _ \\\n"
+                + "| |_| | |_| |   <  __/\n"
+                + "|____/ \\__,_|_|\\_\\___|\n";
+        System.out.println("Hello from\n" + logo);
         this.ui.showWelcome();
 
         boolean isExit = false;
@@ -50,10 +46,22 @@ public void run() {
                 String fullCommand = ui.readCommand();
                 Command c = Parser.parse(fullCommand);
                 c.execute(tasks, ui, storage);
+                storage.save(tasks);
                 isExit = c.isExit();
             } catch (DukeException e) {
                 ui.showError(e.getMessage());
             }
         }
     }
+
+    public String step(String input) {
+        try {
+            Command c = Parser.parse(input);
+            c.execute(tasks, ui, storage);
+            this.storage.save(tasks);
+        } catch(DukeException e) {
+            ui.showError(e.getMessage());
+        }
+        return this.ui.getOutput();
+    }
 }

src/main/java/AddCommand.java → src/main/java/command/AddCommand.java

@@ -1,10 +1,10 @@
 package duke.command;
 
-import duke.DukeException;
-import duke.Parser;
-import duke.Ui;
-import duke.Storage;
-import duke.TaskList;
+import duke.exception.DukeException;
+import duke.util.Parser;
+import duke.util.Ui;
+import duke.util.Storage;
+import duke.task.TaskList;
 import duke.task.Task;
 
 /**

src/main/java/Command.java → src/main/java/command/Command.java

@@ -1,9 +1,9 @@
 package duke.command;
 
-import duke.TaskList;
-import duke.Ui;
-import duke.Storage;
-import duke.DukeException;
+import duke.task.TaskList;
+import duke.util.Ui;
+import duke.util.Storage;
+import duke.exception.DukeException;
 
 /**
  * Abstract Command class that contains execute() for

src/main/java/DeleteCommand.java → src/main/java/command/DeleteCommand.java

@@ -1,10 +1,10 @@
 package duke.command;
 
-import duke.DukeException;
-import duke.Parser;
-import duke.Ui;
-import duke.Storage;
-import duke.TaskList;
+import duke.exception.DukeException;
+import duke.util.Parser;
+import duke.util.Ui;
+import duke.util.Storage;
+import duke.task.TaskList;
 import duke.task.Task;
 
 /**

src/main/java/DoneCommand.java → src/main/java/command/DoneCommand.java

@@ -1,10 +1,10 @@
 package duke.command;
 
-import duke.DukeException;
-import duke.Parser;
-import duke.Ui;
-import duke.Storage;
-import duke.TaskList;
+import duke.exception.DukeException;
+import duke.util.Parser;
+import duke.util.Ui;
+import duke.util.Storage;
+import duke.task.TaskList;
 import duke.task.Task;
 
 /**

src/main/java/ExitCommand.java → src/main/java/command/ExitCommand.java

@@ -1,8 +1,8 @@
 package duke.command;
 
-import duke.Ui;
-import duke.Storage;
-import duke.TaskList;
+import duke.util.Ui;
+import duke.util.Storage;
+import duke.task.TaskList;
 
 /**
  * Command containing method for exiting program.

src/main/java/FindCommand.java → src/main/java/command/FindCommand.java

@@ -1,10 +1,10 @@
 package duke.command;
 
-import duke.DukeException;
-import duke.Parser;
-import duke.Ui;
-import duke.Storage;
-import duke.TaskList;
+import duke.exception.DukeException;
+import duke.util.Parser;
+import duke.util.Ui;
+import duke.util.Storage;
+import duke.task.TaskList;
 import duke.task.Task;
 
 /**

src/main/java/ListCommand.java → src/main/java/command/ListCommand.java

@@ -1,8 +1,8 @@
 package duke.command;
 
-import duke.Ui;
-import duke.Storage;
-import duke.TaskList;
+import duke.util.Ui;
+import duke.util.Storage;
+import duke.task.TaskList;
 
 /**
  * Command containing method for listing Tasks in TaskList.

src/main/java/DukeException.java → src/main/java/exception/DukeException.java

@@ -1,4 +1,4 @@
-package duke;
+package duke.exception;
 
 /**
  * Exception class for Duke.